MICROCHIP MCP1702 Technical data

GND V

OUT

MCP1702

GND V

OUT

MCP1702

3-Pin SOT-23A

3-Pin SOT-89

3-Pin TO-92

OUT

GND

Bottom

View

查询MCP1702T-1202E/CB供应商

250 mA Low Quiescent Current LDO Regulator

MCP1702

Features

• 2.0 µA Quiescent Current (typical)

• Input Operating Voltage Range: 2.7V to 13.2V

• 250 mA Output Current for Output Voltages ≥ 2.5V

• 200 mA Output Current for Output Voltages < 2.5V

• Low Dropout (LDO) voltage

• 0.4% Typical Output Voltage Tolerance

• Standard Output Voltage Options:

• Output voltage range 1.2V to 5.5V in 0.1V

• Stable with 1.0 µF to 22 µF Output Capacitor

• Short-Circuit Protection

• Overtemperature Protection

Applications

• Battery-powered Devices

• Battery-powered Alarm Circuits

• Smoke Detectors

•CO

• Pagers and Cellular Phones

• Smart Battery Packs

• Low Quiescent Current Voltage Reference

•PDAs

• Digital Cameras

• Microcontroller Power

• Solar-Powered Instruments

• Consumer Products

• Battery Powered Data Loggers

Related Literature

• AN765, “Using Microchip’s Micropower LDOs”,

• AN766, “Pin-Compatible CMOS Upgrades to

• AN792, “A Method to Determine How Much

- 625 mV typical @ 250 mA (V

- 1.2V, 1.5V, 1.8V, 2.5V, 2.8V,

3.0V, 3.3V, 4.0V, 5.0V

Increments (50 mV increments available upon request)

Detectors

OUT

= 2.8V)

DS00765, Microchip Technology Inc., 2002

BiPolar LDOs”, DS00766, Microchip Technology Inc., 2002

Power a SOT-23 Can Dissipate in an Application”, DS00792, Microchip Technology Inc., 2001

Description

The MCP1702 is a family of CMOS low dropout (LDO) voltage regulators that can deliver up to 250 mA of current while consuming only 2.0 µA of quiescent current (typical). The input operating range is specified from 2.7V to 13.2V, making it an ideal choice for two to six primary cell battery-powered applications, 9V alkaline and one or two cell Li-Ion-powered applications.

The MCP1702 is capable of delivering 250 mA with only 625 mV (typical) of input to output voltage differential (V of the MCP1702 is typically ±0.4% at +25°C and ±3% maximum over the operating junction temperature range of -40°C to +125°C. Line regulation is ±0.1% typical at +25°C.

Output voltages available for the MCP1702 range from

1.2V to 5.0V. The LDO output is stable when using only 1 µF of output capacitance. Ceramic, tantalum or aluminum electrolytic capacitors can all be used for input and output. Overcurrent limit and overtemperature shutdown provide a robust solution for any application.

Package options include the SOT-23A, SOT-89-3, and TO-92.

= 2.8V). The output voltage tolerance

OUT

Package Types

MCP1702

OUT

GND

Error Amplifier

Voltage

Reference

Overcurrent

Overtemperature

MCP1702

1µF Ceramic

OUT

1 µF Ceramic

OUT

3.3V

OUT

50 mA

GND

OUT

9V Battery

Functional Block Diagrams

Typical Application Circuits

MCP1702

1.0 ELECTRICAL CHARACTERISTICS

† Notice: Stresses above those listed under “Maximum Rat-

ings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the

Absolute Maximum Ratings †

VDD...............................................................................+14.5V

All inputs and outputs w.r.t. .............(V

-0.3V) to (VIN+0.3V)

operational listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability.

Peak Output Current ...................................................500 mA

Storage temperature .....................................-65°C to +150°C

Maximum Junction Temperature...................................150°C

Operating Junction Temperature...................-40°C to +125°C

ESD protection on all pins (HBM;MM)............... ≥ 4kV; ≥ 400V

DC CHARACTERISTICS

Electrical Specifications: Unless otherwise specified, all limits are established for VIN = V

= 100 µA, C

LOAD

Boldface type applies for junction temperatures, T

= 1 µF (X7R), CIN = 1 µF (X7R), TA = +25°C.

OUT

of -40°C to +125°C. (Note 7)

OUT(MAX)

Parameters Sym Min Typ Max Units Conditions

Input / Output Characteristics

Input Operating Voltage V Input Quiescent Current I Maximum Output Current I

OUT_mA

2.7 — 13.2 V Note 1 —2.0 5 µA IL = 0 mA

250 —— mAFor V

50 100 — mA For V 100 130 — mA For V 150 200 — mA For V 200 250 — mA For V

Output Short Circuit Current I

OUT_SC

Output Voltage Regulation V

Temperature Coefficient TCV

OUT

Line Regulation ΔV

OUT

Load Regulation

Note 1: The minimum V

2: V

is the nominal regulator output voltage. For example: VR = 1.2V, 1.5V, 1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 4.0V, or 5.0V.

The input voltage V

3: TCV

OUT

= (V

temperature range. V

ΔV

OUT/VOUT

must meet two conditions: VIN ≥ 2.7V and VIN ≥ V

= V

OUT-HIGH

- V

OUT-LOW

OUT

XΔVIN)

OUT(MAX)

OUT-LOW

= lowest voltage measured over the temperature range.

— 400 — mA VIN = V

VR-3.0%

-2.0%

±0.4%VR+3.0%

+2.0%

V Note 2

—50150 ppm/°C Note 3

-0.3 ±0.1 +0.3 %/V (V

-2.5 ±1.0 +2.5 %IL = 1.0 mA to 250 mA for VR ≥ 2.5V

+ V

= highest voltage measured over the

+ V

DROPOUT(MAX)

or VIN = 2.7V (whichever is greater); I

) *106 / (VR * ΔTemperature), V

OUT(MAX)

OUT-HIGH

4: Load regulation is measured at a constant junction temperature using low duty cycle pulse testing. Changes in output

voltage due to heating effects are determined using thermal regulation specification TCV

5: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its measured

value with an applied input voltage of V

OUT(MAX)

+ V

DROPOUT(MAX)

or 2.7V, whichever is greater.

6: The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable junction

temperature and the thermal resistance from junction to air (i.e., T dissipation will cause the device operating junction temperature to exceed the maximum 150°C rating. Sustained

, TJ, θJA). Exceeding the maximum allowable power

junction temperatures above 150°C can impact the device reliability.

7: The junction temperature is approximated by soaking the device under test at an ambient temperature equal to the

desired Junction temperature. The test time is small enough such that the rise in the Junction temperature over the ambient temperature is not significant.

+ V

DROPOUT(MAX)

≥ 2.5V

< 2.5V, VIN ≥ 2.7V

< 2.5V, VIN ≥ 2.95V

< 2.5V, VIN ≥ 3.2V

< 2.5V, VIN ≥ 3.45V

(Note 1), V

IN(MIN)

Current (average current) measured 10 ms after short is applied.

OUT(MAX)

≤ V

= 1.0 mA to 200 mA for VR < 2.5V,

DROPOUT(MAX)

+ V

≤ 13.2V, (Note 1)

DROPOUT(MAX)

= 3.45V Note 4

= 100 µA.

OUT

, Note 1,

= GND,

OUT

)

MCP1702

DC CHARACTERISTICS (CONTINUED)

Electrical Specifications: Unless otherwise specified, all limits are established for VIN = V

= 100 µA, C

LOAD

Boldface type applies for junction temperatures, T

= 1 µF (X7R), CIN = 1 µF (X7R), TA = +25°C.

OUT

of -40°C to +125°C. (Note 7)

OUT(MAX)

Parameters Sym Min Typ Max Units Conditions

Dropout Voltage

(Note 1, Note 5)

DROPOUT

— 330 650 mV IL = 250 mA, VR = 5.0V — 525 725 mV I — 625 975 mV I — 750 1100 mV I ——— mV V

Output Delay Time T

Output Noise e Power Supply Ripple

PSRR — 44 — dB f = 100 Hz, C

DELAY

— 1000 — µs VIN = 0V to 6V, V

—8 µV/(Hz)

1/2

Rejection Ratio

Thermal Shutdown Protection T

Note 1: The minimum V

2: V

is the nominal regulator output voltage. For example: VR = 1.2V, 1.5V, 1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 4.0V, or 5.0V.

The input voltage V

3: TCV

= (V

OUT

temperature range. V

must meet two conditions: VIN ≥ 2.7V and VIN ≥ V

= V

OUT-HIGH

- V

OUT-LOW

OUT(MAX) OUT-LOW

= lowest voltage measured over the temperature range.

— 150 — °C

+ V

DROPOUT(MAX)

or VIN = 2.7V (whichever is greater); I

) *106 / (VR * ΔTemperature), V

OUT(MAX)

OUT-HIGH

+ V

= highest voltage measured over the

4: Load regulation is measured at a constant junction temperature using low duty cycle pulse testing. Changes in output

voltage due to heating effects are determined using thermal regulation specification TCV

5: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its measured

value with an applied input voltage of V

OUT(MAX)

+ V

DROPOUT(MAX)

or 2.7V, whichever is greater.

6: The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable junction

temperature and the thermal resistance from junction to air (i.e., T dissipation will cause the device operating junction temperature to exceed the maximum 150°C rating. Sustained

, TJ, θJA). Exceeding the maximum allowable power

junction temperatures above 150°C can impact the device reliability.

7: The junction temperature is approximated by soaking the device under test at an ambient temperature equal to the

desired Junction temperature. The test time is small enough such that the rise in the Junction temperature over the ambient temperature is not significant.

+ V

DROPOUT(MAX)

= 250 mA, 3.3V ≤ VR < 5.0V

= 250 mA, 2.8V ≤ VR < 3.3V

= 250 mA, 2.5V ≤ VR < 2.8V

< 2.5V, See Maximum Output

Current Parameter

= 50Ω resistive

OUT

IL = 50 mA, f = 1 kHz, C

= 1 µF, IL = 50 mA,

INAC

=1.2V

DROPOUT(MAX)

OUT

= 100 mV pk-pk, CIN = 0 µF,

= 100 µA.

OUT

, Note 1,

= 90% VR

= 1 µF

OUT

TEMPERATURE SPECIFICATIONS (NOTE 1)

Parameters Sym Min Typ Max Units Conditions

Temperature Ranges

Specified Temperature Range T Operating Temperature Range T Storage Temperature Range T

Thermal Package Resistance

Thermal Resistance, 3L-SOT-23A

Thermal Resistance, 3L-SOT-89

Thermal Resistance, 3L-TO-92 θ

Note 1: The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable junction

temperature and the thermal resistance from junction to air (i.e., T dissipation will cause the device operating junction temperature to exceed the maximum 150°C rating. Sustained junction temperatures above 150°C can impact the device reliability.

-40 +125 °C

-65 +150 °C

—336—°C/W

EIA/JEDEC JESD51-7 FR-4 0.063 4-Layer Board

—110—°C/W

—52—°C/W

EIA/JEDEC JESD51-7

FR-4 0.063 4-Layer Board —10—°C/W — 131.9 — °C/W — 66.3 — °C/W

, TJ, θJA). Exceeding the maximum allowable power

MCP1702

0.00

1.00

2.00

3.00

4.00

5.00

2468101214

Input Voltage (V)

Quiescent Current (µA)

OUT

+25°C

+130°C

-45°C

0°C

+90°C

0.00

1.00

2.00

3.00

4.00

5.00

3 5 7 9 11 13

Input Voltage (V)

Quiescent Current (µA)

OUT

+25°C

+130°C

-45°C

0°C

+90°C

1.00

2.00

3.00

4.00

5.00

67891011121314

Input Voltage (V)

Quiescent Current (µA)

OUT

+25°C

+130°C

-45°C

0°C

+90°C

0.00

20.00

40.00

60.00

80.00

100.00

120.00

0 40 80 120 160 200

Load Current (mA)

GND Current (µA)

Temperature = +25°C

OUT

= 1.2V

= 2.7V

0.00

20.00

40.00

60.00

80.00

100.00

120.00

0 50 100 150 200 250

Load Current (mA)

GND Current (µA)

Temperature = +25°C

OUT

= 5.0V

= 6.0V

OUT

= 2.8V

= 3.8V

0.00

0.50

1.00

1.50

2.00

2.50

3.00

-45-20 5 305580105130

Junction Temperature (°C)

Quiescent Current (µA)

OUT

= 5.0V

= 6.0V

OUT

= 1.2V

= 2.7V

OUT

= 2.8V

= 3.8V

2.0 TYPICAL PERFORMANCE CURVES

Note: The graphs and tables provided following this note are a statistical summary based on a limited number of

samples and are provided for informational purposes only. The performance characteristics listed herein are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified operating range (e.g., outside specified power supply range) and therefore outside the warranted range.

Note: Unless otherwise indicated: VR = 2.8V, C TA = +25°C, VIN = V

OUT(MAX)

+ V

DROPOUT(MAX)

= 1 µF Ceramic (X7R), CIN = 1 µF Ceramic (X7R), IL = 100 µA,

OUT

Note: Junction Temperature (TJ) is approximated by soaking the device under test to an ambient temperature equal to the desired junction temperature. The test time is small enough such that the rise in Junction temperature over the Ambient temperature is not significant.

= 1.2V

FIGURE 2-1: Quiescent Current vs. Input Voltage.

= 2.8V

FIGURE 2-4: Ground Current vs. Load Current.

FIGURE 2-2: Quiescent Current vs.Input Voltage.

FIGURE 2-3: Quiescent Current vs.Input Voltage.

= 5.0V

FIGURE 2-5: Ground Current vs. Load Current.

= 0 mA

FIGURE 2-6: Quiescent Current vs. Junction Temperature.

MCP1702

1.18

1.19

1.20

1.21

1.22

1.23

1.24

2468101214

Input Voltage (V)

Output Voltage (V)

OUT

LOAD

+25°C

+130°C

-45°C

0°C

+90°C

2.77

2.78

2.79

2.80

2.81

2.82

2.83

2.84

2.85

3 4 5 6 7 8 9 1011121314

Input Voltage (V)

Output Voltage (V)

OUT

= 2.8V

LOAD

= 0.1 mA

+25°C

+130°C

-45°C

0°C

+90°C

4.96

4.98

5.00

5.02

5.04

5.06

6 7 8 9 10 11 12 13 14

Input Voltage (V)

Output Voltage (V)

OUT

= 5.0V

LOAD

= 0.1 mA

+25°C

+130°C

-45°C

0°C

+90°C

1.18

1.19

1.20

1.21

1.22

1.23

0 20406080100

Load Current (mA)

Output Voltage (V)

OUT

+25°C

+130°C

-45°C

0°C

+90°C

2.77

2.78

2.79

2.80

2.81

2.82

2.83

0 50 100 150 200 250

Load Current (mA)

Output Voltage (V)

OUT

+25°C

+130°C

-45°C

0°C

+90°C

4.96

4.97

4.98

4.99

5.00

5.01

5.02

5.03

5.04

0 50 100 150 200 250

Load Current (mA)

Output Voltage (V)

OUT

+25°C

+130°C

-45°C

0°C

+90°C

Note: Unless otherwise indicated: VR = 2.8V, C

TA = +25°C, VIN = V

OUT(MAX)

+ V

DROPOUT(MAX)

OUT

= 1.2V

= 0.1 mA

FIGURE 2-7: Output Voltage vs. Input Voltage.

= 1 µF Ceramic (X7R), CIN = 1 µF Ceramic (X7R), IL = 100 µA,

= 1.2V

FIGURE 2-10: Output Voltage vs. Load Current.

= 2.8V

FIGURE 2-8: Output Voltage vs. Input Voltage.

FIGURE 2-9: Output Voltage vs. Input Voltage.

FIGURE 2-11: Output Voltage vs. Load Current.

= 5.0V

FIGURE 2-12: Output Voltage vs. Load Current.

MCP1702

0.60

0.70

0.80

0.90

1.00

1.10

1.20

1.30

1.40

100 120 140 160 180 200

Load Current (mA)

Dropout Voltage (V)

OUT

= 1.8V

+25°C

+130°C

-45°C

0°C

+90°C

0.00

0.10

0.20

0.30

0.40

0.50

0.60

0.70

0.80

0.90

1.00

0 25 50 75 100 125 150 175 200 225 250

Load Current (mA)

Dropout Voltage (V)

OUT

= 2.8V

+25°C

+130°C

+0°C

-45°C

+90°C

0.00

0.05

0.10

0.15

0.20

0.25

0.30

0.35

0.40

0.45

0.50

0 25 50 75 100 125 150 175 200 225 250

Load Current (mA)

Dropout Voltage (V)

OUT

= 5.0V

+25°C

+130°C

+0°C

-45°C

+90°C

0.00

100.00

200.00

300.00

400.00

500.00

600.00

4 6 8 10 12 14

Input Voltage (V)

Short Circuit Current (mA)

OUT

= 2.8V

OUT

< 0.1

Note: Unless otherwise indicated: VR = 2.8V, C TA = +25°C, VIN = V

OUT(MAX)

+ V

DROPOUT(MAX)

OUT

FIGURE 2-13: Dropout Voltage vs. Load Current.

= 1 µF Ceramic (X7R), CIN = 1 µF Ceramic (X7R), IL = 100 µA,

FIGURE 2-16: Dynamic Line Response.

FIGURE 2-14: Dropout Voltage vs. Load

Current.

FIGURE 2-15: Dropout Voltage vs. Load Current.

FIGURE 2-17: Dynamic Line Response.

FIGURE 2-18: Short Circuit Current vs.

Input Voltage.

MCP1702

-0.30

-0.25

-0.20

-0.15

-0.10

-0.05

0.00

0.05

0.10

0.15

0.20

-45-20 5 305580105130

Temperature (°C)

Load Regulation (%)

OUT

= 1.2V

LOAD

= 0.1 mA to 200 mA

VIN = 4V

VIN = 13.2V

VIN = 6V

VIN = 12VVIN = 10V

-0.60

-0.50

-0.40

-0.30

-0.20

-0.10

0.00

0.10

0.20

0.30

0.40

-45-20 5 305580105130

Temperature (°C)

Load Regulation (%)

OUT

LOAD

= 1 mA to 250 mA

VIN = 3.8V

VIN = 13.2V

VIN = 10V

VIN = 6V

-0.10

0.00

0.10

0.20

0.30

0.40

-45-20 5 305580105130

Temperature (°C)

Load Regulation (%)

OUT

LOAD

VIN = 6V

VIN = 13.2V

VIN = 8V

VIN = 10V

0.00

0.04

0.08

0.12

0.16

0.20

-45-20 5 305580105130

Temperature (°C)

Line Regulation (%/V)

OUT

1 mA

100 mA

0 mA

0.00

0.04

0.08

0.12

0.16

0.20

-45-20 5 305580105130

Temperature (°C)

Line Regulation (%/V)

OUT

= 2.8V

= 3.8V to 13.2V

200 mA

100 mA

0 mA

250 mA

0.06

0.08

0.10

0.12

0.14

0.16

-45-20 5 305580105130

Temperature (°C)

Line Regulation (%/V)

OUT

= 5.0V

= 6.0V to 13.2V

200 mA

100 mA

0 mA

250 mA

Note: Unless otherwise indicated: VR = 2.8V, C

TA = +25°C, VIN = V

OUT(MAX)

+ V

DROPOUT(MAX)

FIGURE 2-19: Load Regulation vs.

Temperature.

= 2.8V

= 1 µF Ceramic (X7R), CIN = 1 µF Ceramic (X7R), IL = 100 µA,

OUT

= 2.7V to 13.2V

FIGURE 2-22: Line Regulation vs.

Temperature.

= 1.2V

FIGURE 2-20: Load Regulation vs.

Temperature.

FIGURE 2-21: Load Regulation vs.

Temperature.

= 1 mA to 250 mA

= 5.0V

FIGURE 2-23: Line Regulation vs.

Temperature.

FIGURE 2-24: Line Regulation vs. Temperature.

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