MCP1701A资料

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MCP1701A

2µA Low-Dropout Positive Voltage Regulator

Features

•2.0µA Typical Quiescent Current

•Input Operating Voltage Range up to 10.0V•Low-Dropout Voltage (LDO):-120mV (typical) @ 100mA-380mV (typical) @ 200mA

•High Output Current: 250mA (VOUT = 5.0V)•High-Accuracy Output Voltage: ±2% (max)•Low Temperature Drift: ±100ppm/°C (typical)•Excellent Line Regulation: 0.2%/V (typical)

•Package Options: 3-Pin SOT-23A, 3-Pin SOT-, and 3-Pin TO-92

•Short Circuit Protection

•Standard Output Voltage Options:-1.8V, 2.5V, 3.0V, 3.3V, 5.0V

General Description

The MCP1701A is a family of CMOS low-dropout,positive voltage regulators that can deliver up to250mA of current while consuming only 2.0µA ofquiescent current (typ.). The input operating range isspecified up to 10V, making it ideal for lithium-ion (oneor two cells), 9V alkaline and other two and threeprimary cell battery-powered applications.

The MCP1701A is capable of delivering 250mA withan input-to-output voltage differential (dropout voltage)of 650mV. The low-dropout voltage extends the batteryoperating lifetime. It also permits high currents in smallpackages when operated with minimum VIN – VOUTdifferentials. The MCP1701A offers improved startupand transient response.

The MCP1701A has a tight tolerance output voltageregulation of ±0.5% (typ.) and very good line regulationat ±0.2%. The LDO output is stable when using only1µF of output capacitance of either tantalum oraluminum-electrolytic style capacitors. The MCP1701ALDO also incorporates short circuit protection to ensuremaximum reliability.

Package options include the 3-pin SOT-23A, 3-pinSOT- and 3-Pin TO-92.

Applications

••••••••••••

Battery-Powered Devices

Battery-Powered Alarm CircuitsSmoke DetectorsCO2 Detectors

Smart Battery PacksPDAs

Low-Quiescent Current Voltage ReferenceCameras and Portable Video EquipmentPagers and Cellular PhonesSolar-Powered InstrumentsConsumer ProductsMicrocontroller Power

Package Types

3-Pin SOT-23A

VIN

3MCP1701A1GND

2VOUT

MCP1701A123GNDVINVOUT

3-Pin TO-92

123

3-Pin SOT-

VIN

BottomView

GNDVINVOUT

Note:3-Pin SOT-23A is equivalent to the EIAJ

SC-59.

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MCP1701A

Functional Block Diagram

MCP1701AVIN

VOUT

Short-CircuitProtection

+VoltageReferenceGND

Typical Application Circuits

MCP1701A

VIN

9V Alkaline Battery

CIN

1µF Tantalum

GND

VOUT3.3VIOUT50mA

VIN

VOUT

COUT

1µF Tantalum

DS21991C-page 2

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MCP1701A

1.0

ELECTRICAL

CHARACTERISTICS

† Notice: Stresses above those listed under “AbsoluteMaximum Ratings” may cause permanent damage to thedevice. These are stress ratings only and functional operationof the device at these or any other conditions above thoseindicated in the operation sections of the specifications is notimplied. Exposure to Absolute Maximum Rating conditions forextended periods may affect device reliability.

Absolute Maximum Ratings†

Input Voltage........................................................+12VOutput Current (Continuous)..........PD/(VIN – VOUT)mAOutput Current (peak)..................................... 500mAOutput Voltage...............(GND – 0.3V) to (VIN + 0.3V)Continuous Power Dissipation:

3-Pin SOT-23A............................................150mW3-Pin SOT-...............................................500mW3-Pin TO-92.................................................300mW

ELECTRICAL CHARACTERISTICS

Electrical Specifications: Unless otherwise specified, all limits are established for an ambient temperature of TA = +25°C.

Parameters

Output Voltage RegulationMaximum Output Current

Sym

VOUTIOUTMAX

Min

VR - 2%250200150150125110

Typ

VR±0.5%

——————±0.8±1.1±1.3±1.5±1.8±0.83804004004004001802.00.2—±100200

Max

VR + 2%——————+1.60+2.25+2.72+3.00+3.60+1.606006307007007003004.50.310——

UnitsV

Conditions

IOUT = 40mA (Note1)

VOUT = 5.0V (VIN = VR + 1.0V)VOUT = 4.0VVOUT = 3.3VVOUT = 3.0VVOUT = 2.5VVOUT = 1.8V

Load Regulation (Note3)

ΔVOUT/ VOUT

-1.60-2.25-2.72-3.00-3.60-1.60

VOUT = 5.0V, 1mA ≤ IOUT ≤ 100mAVOUT = 4.0V, 1mA ≤ IOUT ≤ 100mAVOUT = 3.3V, 1mA ≤ IOUT ≤ 80mAVOUT = 3.0V, 1mA ≤ IOUT ≤ 80mAVOUT = 2.5V, 1mA ≤ IOUT ≤ 60mAVOUT = 1.8V, 1mA ≤ IOUT ≤ 30mA

Dropout Voltage

VIN - VOUT

——————

IOUT = 200mA, VR = 5.0VIOUT = 200mA, VR = 4.0VIOUT = 150mA, VR = 3.3VIOUT = 150mA, VR = 3.0VIOUT = 120mA, VR = 2.5VIOUT = 20mA, VR = 1.8V

Input Quiescent CurrentLine RegulationInput Voltage

Temperature Coefficient of Output VoltageOutput Rise Time

IQ ΔVOUT•100 ΔVIN•VOUT

VINTCVOUT

—————

µA%/VVppm/°Cµs

VIN = VR + 1.0V

IOUT = 40mA, (VR +1) ≤ VIN ≤ 10.0V

IOUT = 40mA, -40°C ≤ TA ≤ +85°C (Note2)

10% VR to 90% VR, VIN = 0V to VR +1V, RL = 25Ω resistive

1:2:3:VR is the nominal regulator output voltage. For example: VR = 1.8V, 2.5V, 3.3V, 4.0V, 5.0V.The input voltage VIN = VR + 1.0V, IOUT = 40mA.

TCVOUT = (VOUT-HIGH – VOUT-LOW) *106 / (VR * ΔTemperature), VOUT-HIGH = Highest voltage measured over the temperature range. VOUT-LOW = Lowest voltage measured over the temperature range.Load regulation is measured at a constant junction temperature using low duty cycle pulse testing.

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MCP1701A

TEMPERATURE CHARACTERISTICS

Electrical Specifications: Unless otherwise specified, TA = +25°C.

Parameters

Temperature Ranges

Specified Temperature Range (I)Storage Temperature RangePackage Thermal ResistancesThermal Resistance, 3L-SOT-23A

θJA

——

Thermal Resistance, 3L-SOT-Thermal Resistance, 3L-TO-92

θJAθJA

——

33523052131.9

————

°C/W°C/W°C/W°C/W

Minimum trace width single layer applicationTypical FR4, 4-layer application

Typical, when mounted on 1 square inch of copperEIA/JEDEC JESD51-751-74-layer board

TATA

-40-40

——

+85+125

°C°C

Sym

Min

Typ

Max

Units

Conditions

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MCP1701A

2.0

Note:

TYPICAL PERFORMANCE CURVES

The graphs and tables provided following this note are a statistical summary based on a limited number ofsamples and are provided for informational purposes only. The performance characteristics listed hereinare not tested or guaranteed. In some graphs or tables, the data presented may be outside the specifiedoperating range (e.g., outside specified power supply range) and therefore outside the warranted range.

Notes: Unless otherwise specified, VOUT = 1.8V, 3.3V, 5.0V, TA = +25°C, CIN = 1µF Tantalum, COUT = 1µF Tantalum.

32.82.62.42.221.81.61.41.213579Input Voltage (V)VR = 1.8V+90°C1.7Supply Current (μA)1.61.51.41.31.21.11050100Load Current (mA)150-45°C+90°C+25°CSupply Current (μA)VIN = 4.3VVR = 3.3V+25°C-45°C11200FIGURE 2-1:Supply Current vs. Input Voltage (VR = 1.8V).

1.8Supply Current (μA)1.71.61.51.41.31.21.11468Input Voltage (V)1012+90°C+25°CFIGURE 2-4:Supply Current vs. Load Current (VR = 3.3V).

2.2Supply Current (μA)21.81.61.4-45°C+90°C+25°CVR = 3.3VVIN = 6.0VVR = 5.0V-45°C1.21050100Load Current (mA)150200FIGURE 2-2:Supply Current vs. Input Voltage (VR = 3.3V).

2.4Supply Current (μA)2.221.81.61.41.2167101112Input Voltage (V)-45°C+90°C+25°CVR = 5.0VFIGURE 2-5:Supply Current vs. Load Current (VR = 5.0V).

2.2Supply Current (μA)21.8VR = 3.3VVIN = VR + 1.0V IOUT = 0 μAVR = 5.0V1.61.41.2-45-25-51535557595Temperature (°C)VR = 1.8VFIGURE 2-3:Supply Current vs. Input Voltage (VR = 5.0V).

FIGURE 2-6:Temperature.

Supply Current vs.

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MCP1701A

Note: Unless otherwise indicated, VOUT = 1.8V, 3.3V, 5.0V, TA = +25°C, CIN = 1µF Tantalum, COUT = 1µF Tantalum.

1.881.86Output Voltage (V)1.841.821.81.781.761.741.7234567101112Input Voltage (V)+90°C-45°C+25°COutput Voltage (V)VR = 1.8VIOUT = 0.1 mA1.821.811.81.791.781.771.761.751.741.731.721.71020+25°CVR = 1.8VVIN = 3.0V+90°C-45°C406080100Load Current (mA)FIGURE 2-7:Output Voltage vs. Input Voltage (VR = 1.8V).

3.43.38Output Voltage (V)3.363.343.323.33.283.263.244567101112Input Voltage (V)+90°C+25°C-45°CFIGURE 2-10:Output Voltage vs. Load Current (VR = 1.8V).

3.333.32Output Voltage (V)3.313.33.293.283.273.263.250306090Load Current (mA)120150-45°C+25°C+90°CVR = 3.3VIOUT = 0.1 mAVR = 3.3VVIN = 4.3VFIGURE 2-8:Output Voltage vs. Input Voltage (VR = 3.3V).

5.125.1Output Voltage (V)5.085.065.045.02.9867101112Input Voltage (V)+25°C-45°C+90°CFIGURE 2-11:Output Voltage vs. Load Current (VR = 3.3V).

5.045.03Output Voltage (V)5.025.01.994.984.97050100150200250Load Current (mA)-45°C+90°C+25°CVR = 5.0VIOUT = 0.1 mAVR = 5.0VVIN = 6.0VFIGURE 2-9:Output Voltage vs. Input Voltage (VR = 5.0V).FIGURE 2-12:Output Voltage vs. Load Current (VR = 5.0V).

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MCP1701A

Note: Unless otherwise indicated, VOUT = 1.8V, 3.3V, 5.0V, TA = +25°C, CIN = 1µF Tantalum, COUT = 1µF Tantalum.

0.70.6Dropout Voltage (V)0.50.40.30.20.10.0020406080Load Current (mA)100+90°C-45°C+25°CVR = 1.8VFIGURE 2-13:Dropout Voltage vs. Load Current (VR = 1.8V).

0FIGURE 2-16:(VR = 1.8V).

Start-up From VIN

0.50Dropout Voltage (V)0.400.300.200.100.000VR = 3.3V+90°C+25°C-45°C255075100125150Load Current (mA)FIGURE 2-14:Dropout Voltage vs. Load Current (VR = 3.3V).

0.6VR = 5.0VFIGURE 2-17:(VR = 3.3V).

Start-up From VIN

Dropout Voltage (V)0.50.4+25°C0.30.20.10050100+90°C-45°C150200250Load Current (mA)FIGURE 2-15:Dropout Voltage vs. Load Current (VR = 5.0V).FIGURE 2-18:(VR = 5.0V).

Start-up From VIN

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MCP1701A

Note: Unless otherwise indicated, VOUT = 1.8V, 3.3V, 5.0V, TA = +25°C, CIN = 1µF Tantalum, COUT = 1µF Tantalum.

0.00Load Regulation (%)-0.05-0.10-0.15-0.20-0.25-0.30-0.35-0.40-45-30-150153045607590Temperature (°C)VIN = 12.0VVIN = 10.0VVIN = 6.0VVIN = 3.0VVIN = 8.0V0.18Line Regulation (%/V) VR = 1.8VIOUT = 1 to 30 mA0.160.140.120.100.080.060.040.020.00-45IOUT = 0 mAIOUT = 0.1 mA VR = 1.8VVIN = 2.8V to 10VIOUT = 1.0 mAIOUT = 10 mAIOUT = 100 mA-30-150153045607590Temperature (°C)FIGURE 2-19:Load Regulation vs. Temperature (VR = 1.8V).

-0.35Load Regulation (%)-0.40-0.45-0.50-0.55-0.60-0.65-0.70-0.75-45-25-515355575Temperature (°C)VIN = 12.0VVIN = 4.3VVIN = 8.0VVIN = 10.0VFIGURE 2-22:Line Regulation vs. Temperature (VR = 1.8V).

0.18Line Regulation (%/V)IOUT = 0 mAIOUT = 10 mAIOUT = 100 mA VR = 3.3VVIN = 4.3V to 10V VR = 3.3VIOUT = 1 to 80 mA0.160.140.120.100.080.060.04-45-30-1501530IOUT = 200 mAIOUT = 300 mA45607590Temperature (°C)FIGURE 2-20:Load Regulation vs. Temperature (VR = 3.3V).

-0.20Load Regulation (%)-0.25-0.30-0.35-0.40-0.45-0.50-0.55-0.60-0.65-45-25-515355575Temperature (°C)VIN = 12.0VVIN = 10.0VVIN = 8.0VVIN = 6.0V VR = 5.0VVIN = 6.0V to 12VFIGURE 2-23:Line Regulation vs. Temperature (VR = 3.3V).

0.18Line Regulation (%/V)0.160.140.120.10IOUT = 200 mAIOUT = 100 mAIOUT = 0 mAIOUT = 1 mAIOUT = 10 mA VR = 5.0VVIN = 6.0V to 10V0.080.06-45-30-150IOUT = 300 mA153045607590Temperature (°C)FIGURE 2-21:Load Regulation vs. Temperature (VR = 5.0V).FIGURE 2-24:Line Regulation vs. Temperature (VR = 5.0V).

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MCP1701A

3.0

PIN DESCRIPTIONS

The descriptions of the pins are listed in Table3-1.

TABLE 3-1:

Pin No.SOT-23A

123

PIN FUNCTION TABLE

Pin No.SOT-132

Pin No.TO-92132

NameGNDVOUTVIN

Ground Terminal

Regulated Voltage OutputUnregulated Supply Input

Function

3.1Ground Terminal (GND)3.3

Unregulated Supply Input (VIN)

Regulator ground. Tie GND to the negative side of theoutput and the negative side of the input capacitor.Only the LDO bias current (2µA, typ.) flows out of thispin, there is no high current. The LDO output regulationis referenced to this pin. Minimize voltage dropsbetween this pin and the negative side of the load.

3.2

Regulated Voltage Output (VOUT)

Connect VOUT to the positive side of the load and thepositive terminal of the output capacitor. The positiveside of the output capacitor should be physicallylocated as close as possible to the LDO VOUT pin. Thecurrent flowing out of this pin is equal to the DC loadcurrent.

Connect the input supply voltage and the positive sideof the input capacitor to VIN. Like all low-dropout linearregulators, low source impedance is necessary for thestable operation of the LDO. The amount ofcapacitance required to ensure low source impedancewill depend on the proximity of the input sourcecapacitors or battery type. The input capacitor shouldbe physically located as close as possible to the VINpin. For most applications, 1µF of capacitance willensure stable operation of the LDO circuit. Forapplications that have load currents below 100mA, theinput capacitance requirement can be lowered. Thetype of capacitor used can be ceramic, tantalum oraluminum electrolytic. The low equivalent seriesresistance characteristics of the ceramic will yieldbetter noise and PSRR performance at high frequency.The current flow into this pin is equal to the DC loadcurrent, plus the LDO bias current (2µA, typical).

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MCP1701A

4.0

DETAILED DESCRIPTION

4.2

Input Capacitor

The MCP1701A is a low-quiescent current, precision,fixed-output voltage LDO. Unlike bipolar regulators,the MCP1701A supply current does not increaseproportionally with load current.

A 1µF input capacitor is recommended for mostapplications when the input impedance is on the orderof 10Ω. Larger input capacitance may be required forstability when operating from a battery input, or if thereis a large distance from the input source to the LDO.When large values of output capacitance are used, theinput capacitance should be increased to prevent highsource impedance oscillations.

4.1Output Capacitor

A minimum of 1µF output capacitor is required. Theoutput capacitor should have an ESR greater than0.1Ω and less than 5Ω, plus a resonant frequencyabove 1MHz. Larger output capacitors can be used toimprove supply noise rejection and transient response.Care should be taken when increasing COUT to ensurethat the input impedance is not high enough to causehigh input impedance oscillation.

4.3Overcurrent

The MCP1701 internal circuitry monitors the amount ofcurrent flowing through the P-channel pass transistor.In the event of a short circuit or excessive outputcurrent, the MCP1701 will act to limit the output current.

VINVOUT

Short CircuitProtection

VoltageReferenceGND

FIGURE 4-1:MCP1701A Block Diagram.

DS21991C-page 10

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MCP1701A

5.0

5.1

THERMAL CONSIDERATIONS

Power Dissipation

The amount of power dissipated internal to the LDO

linear regulator is the sum of the power dissipationwithin the linear pass device (P-channel MOSFET) andthe quiescent current required to bias the internalreference and error amplifier. The internal linear passdevice power dissipation is calculated as shown inEquation5-1.

To determine the junction temperature of the device, thethermal resistance from junction-to-ambient must beknown. The 3-pin SOT-23A thermal resistance fromjunction-to-air (RθJA) is estimated to be approximately335°C/W. The SOT- RθJA isestimated to beapproximately 52°C/W when mounted on 1 square inchof copper. The RθJA will vary with physical layout, airflowand other application-specific conditions.

The device junction temperature is determined bycalculating the junction temperature rise aboveambient, then adding the rise to the ambienttemperature.

EQUATION 5-1:

PD (Pass Device) = (VIN – VOUT) x IOUT

The internal power dissipation, as a result of the biascurrent for the LDO internal reference and erroramplifier, is calculated as shown in Equation5-2.

EQUATION 5-5:JUNCTION TEMPERATURE

– SOT-23A EXAMPLE:

TJ=PDMAX×RθJA+TA

TJ=116.0milliwatts×335°C/W+55°CTJ=93.9°C

EQUATION 5-2:

PD (Bias) = VIN x IGND

The total internal power dissipation is the sum of PD(pass device) and PD (bias).

EQUATION 5-6:JUNCTION TEMPERATURE

– SOT- EXAMPLE:

TJ=116.0milliwatts×52°C/W+55°CTJ=61°C

EQUATION 5-3:

PTOTAL = PD (Pass Device) + PD (Bias)

For the MCP1701A, the internal quiescent bias currentis so low (2µA, typ.) that the PD (bias) term of thepower dissipation equation can be ignored. Themaximum power dissipation can be estimated by usingthe maximum input voltage and the minimum outputvoltage to obtain a maximum voltage differentialbetween input and output. The next step would be tomultiply the maximum voltage differential by themaximum output current.

EQUATION 5-4:

PD = (VINMAX – VOUTMIN) x IOUTMAX

Given:

VINVOUTIOUTTAMAXPMAX

====

3.3V to 4.1V1mA to 100mA55°C

(4.1V – (3.0V x 0.98)) x 100mA=3.0V±2%

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MCP1701A

6.0

6.1

PACKAGING INFORMATION

Package Marking Information

3-Pin SOT-23A

3-Pin SOT-

3-Pin TO-92

1234

Line 1Line 2

12345671011124

1 ,2 ,3 &45

1represents first voltage digit 1V, 2V, 3V, 4V, 5V, 6V Ex: 3.xV = 3

= 701A (fixed)

represents first voltage digit (1-6)represents first voltage decimal (0-9)represents extra feature code: fixed: 0represents regulation accuracy2 = ±2.0% (standard)

represents first decimal place voltage (x.0 - x.9) Ex: 3.4V=SymbolABCDE

3E67Voltagex.0x.1x.2x.3x.4

SymbolFHKLM

Voltagex.5x.6x.7x.8x.9

,10,11 &12 represents assembly lot number

3represents polarity0 = Positive (fixed)

represents assembly lot number

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MCP1701A

3-Lead Plastic Small Outline Transistor (CB) [SOT-23A]Note:For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packagingDe1e21EE1NbAA2cφA1UnitsDimension LimitsNumber of PinsLead PitchOutside Lead PitchOverall HeightMolded Package ThicknessStandoffOverall WidthMolded Package WidthOverall LengthFoot LengthFoot AngleLead ThicknessNee1AA2A1EE1DLφc0.0.900.002.101.202.700.150°0.09MINMILLIMETERSNOM30.95 BSC1.90 BSC–––––––––1.451.300.153.001.803.100.6030°0.26MAXLLead Widthb0.30–0.51Notes:1.Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 0.127 mm per side.2.Dimensioning and tolerancing per ASME Y14.5M.BSC:Basic Dimension. Theoretically exact value shown without tolerances.MicrochipTechnologyDrawingC04-130B© 2007 Microchip Technology Inc.DS21991C-page 13

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MCP1701A

3-Lead Plastic Small Outline Transistor Header (MB) [SOT-]Note:For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packagingDD1EHL1b1ee12bNb1E1ACUnitsDimension LimitsNumber of LeadsPitchOutside Lead PitchOverall HeightOverall WidthMolded Package Width at BaseMolded Package Width at TopOverall LengthTab LengthFoot LengthLead ThicknessLead 2 WidthNee1AHEE1DD1Lcb1.403.942.292.134.391.400.790.350.41MILLIMETERSMIN31.50 BSC3.00 BSC1.604.252.602.294.601.831.200.440.56MAXLeads 1 & 3 Widthb10.360.48Notes:1.Dimensions D and E do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 0.127 mm per side.2.Dimensioning and tolerancing per ASME Y14.5M.BSC:Basic Dimension. Theoretically exact value shown without tolerances.MicrochipTechnologyDrawingC04-029BDS21991C-page 14© 2007 Microchip Technology Inc.

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MCP1701A

3-Lead Plastic Transistor Outline (TO) [TO-92]Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packagingEA1NL123becDRUnitsDimension LimitsNumber of PinsPitchBottom to Package FlatOverall WidthOverall LengthMolded Package RadiusTip to Seating PlaneLead ThicknessLead WidthNeDEARLcb.125.175.170.080.500.014.014MIN3.050 BSC.165.205.210.105–.021.022INCHESMAXNotes:1.Dimensions A and E do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .005\" per side.2.Dimensioning and tolerancing per ASME Y14.5M.BSC:Basic Dimension. Theoretically exact value shown without tolerances.MicrochipTechnologyDrawingC04-101B© 2007 Microchip Technology Inc.DS21991C-page 15

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MCP1701A

NOTES:

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MCP1701A

APPENDIX A:

REVISION HISTORY

Revisions C (February 2007)

•Updated Packaging Information

Revision B (September 2006)

•Numerous changes to Section 1.0. Electrical Characteristics

•Added disclaimer to package outline drawings.

Revision A (February 2006)

•Original Release of this Document.

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MCP1701A

NOTES:

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MCP1701A

PRODUCT IDENTIFICATION SYSTEM

To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office.PART NO.Device

X-XXXXX/XXExamples:a)

MCP1701AT-1802I/CB:1.8V LDO Positive

Voltage Regulator,SOT-23A-3 pkg.MCP1701AT-1802I/MB:1.8V LDO Positive

Voltage Regulator,SOT-3 pkg.MCP1701A-1802I/TO:1.8V LDO Positive

Voltage Regulator,TO-92 pkg.MCP1701AT-2502I/CB:2.5V LDO Positive

Voltage Regulator,SOT-23A-3 pkg.MCP1701A-2502I/TO:2.5V LDO Positive

Voltage Regulator,TO-92 pkg.MCP1701AT-3002I/CB:3.0V LDO Positive

Voltage Regulator,SOT-23A-3 pkg.MCP1701AT-3002I/MB:3.0V LDO Positive

Voltage Regulator,SOT-3 pkg.MCP1701A-3002I/TO:3.0V LDO Positive

Voltage Regulator,TO-92 pkg.MCP1701AT-3302I/CB:3.3V LDO Positive

Voltage Regulator,SOT-23A-3 pkg.MCP1701AT-3302I/MB:3.3V LDO Positive

Voltage Regulator,SOT-3 pkg.MCP1701AT-5002I/CB:5.0V LDO Positive

Voltage Regulator,SOT-23A-3 pkg.MCP1701AT-5002I/MB:5.0V LDO Positive

Voltage Regulator,SOT-3 pkg.MCP1701A-5002I/TO:5.0V LDO Positive

Voltage Regulator,TO-92 pkg.

TapeOutputFeatureToleranceTemp.Packageand ReelVoltageCode

Device:Tape and Reel:Output Voltage:

MCP1701A: 2µA Low-Dropout Positive Voltage Regulator

=Tape and Reel

18=1.8V “Standard”25=2.5V “Standard”30=3.0V “Standard”33=3.3V “Standard”50=5.0V “Standard”

*Contact factory for other output voltage options.02I

=Fixed

=2.0% (Standard)= -40°C to +85°C

Extra Feature Code:Tolerance:Temperature:Package Type:

CB=3-Pin SOT-23A (equivalent to EIAJ SC-59)MB=3-Pin SOT-TO=3-Pin TO-92

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MCP1701A

NOTES:

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Note the following details of the code protection feature on Microchip devices:•••

Microchip products meet the specification contained in their particular Microchip Data Sheet.

Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions.

There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our

knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property.

Microchip is willing to work with the customer who is concerned about the integrity of their code.

Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as “unbreakable.”

••

Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of ourproducts. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such actsallow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.

Information contained in this publication regarding deviceapplications and the like is provided only for your convenienceand may be superseded by updates. It is your responsibility toensure that your application meets with your specifications.MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS ORIMPLIED, WRITTEN OR ORAL, STATUTORY OROTHERWISE, RELATED TO THE INFORMATION,INCLUDING BUT NOT LIMITED TO ITS CONDITION,QUALITY, PERFORMANCE, MERCHANTABILITY ORFITNESS FOR PURPOSE. Microchip disclaims all liabilityarising from this information and its use. Use of Microchipdevices in life support and/or safety applications is entirely atthe buyer’s risk, and the buyer agrees to defend, indemnify andhold harmless Microchip from any and all damages, claims,suits, or expenses resulting from such use. No licenses areconveyed, implicitly or otherwise, under any Microchipintellectual property rights.

Trademarks

The Microchip name and logo, the Microchip logo, Accuron, dsPIC, KEELOQ, KEELOQ logo, microID, MPLAB, PIC,

PICmicro, PICSTART, PROMATE, PowerSmart, rfPIC, and SmartShunt are registered trademarks of Microchip

Technology Incorporated in the U.S.A. and other countries.AmpLab, FilterLab, Linear Active Thermistor, Migratable Memory, MXDEV, MXLAB, PS logo, SEEVAL, SmartSensor and The Embedded Control Solutions Company are

registered trademarks of Microchip Technology Incorporated in the U.S.A.

Analog-for-the-Digital Age, Application Maestro, CodeGuard, dsPICDEM, dsPICDEM.net, dsPICworks, ECAN, ECONOMONITOR, FanSense, FlexROM, fuzzyLAB,

In-Circuit Serial Programming, ICSP, ICEPIC, Mindi, MiWi, MPASM, MPLAB Certified logo, MPLIB, MPLINK, PICkit, PICDEM, PICDEM.net, PICLAB, PICtail, PowerCal, PowerInfo, PowerMate, PowerTool, REAL ICE, rfLAB, rfPICDEM, Select Mode, Smart Serial, SmartTel, Total

Endurance, UNI/O, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries.

SQTP is a service mark of Microchip Technology Incorporated in the U.S.A.

All other trademarks mentioned herein are property of their respective companies.

Printed on recycled paper.

Microchip received ISO/TS-16949:2002 certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona, Gresham, Oregon and Mountain View, California. The Company’s quality system processes and procedures are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping devices, Serial EEPROMs, microperipherals, nonvolatile memory and analog

products. In addition, Microchip’s quality system for the design and manufacture of development systems is ISO 9001:2000 certified.

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12/08/06

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