MCP1640 查看數據表（PDF） - Microchip Technology

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MCP1640

0.65V Start-up Synchronous Boost Regulator with True Output Disconnect or Input/Output Bypass Option

Microchip Technology 

MCP1640/B/C/D

DC CHARACTERISTICS (CONTINUED)

Electrical Characteristics: Unless otherwise indicated, VIN = 1.2V, COUT = CIN = 10 µF, L = 4.7 µH, VOUT = 3.3V, IOUT = 15 mA,

TA = +25°C.

Boldface specifications apply over the TA range of -40oC to +85oC.

Parameters

Sym

Min

Typ

Max Units

Conditions

NMOS Peak Switch Current

IN(MAX)

600

850

Limit

—

mA Note 5

VOUT Accuracy

Line Regulation

Load Regulation

Maximum Duty Cycle

Switching Frequency

EN Input Logic High

EN Input Logic Low

EN Input Leakage Current

Soft-start Time

Thermal Shutdown Die

Temperature

VOUT%

-3

VOUT/

-1

VOUT) /

VIN|

VOUT /

-1

VOUT|

DCMAX

88

fSW

425

VIH

90

VIL

—

IENLK

—

tSS

—

TSD

—

—

0.01

0.01

90

500

—

—

0.005

750

150

+3

% Includes Line and Load

Regulation; VIN = 1.5V

1

%/V VIN = 1.5V to 3V

IOUT = 25 mA

1

% IOUT = 25 mA to 100 mA;

VIN = 1.5V

—

%

575

kHz

—

%of VIN IOUT = 1 mA

20

%of VIN IOUT = 1 mA

—

µA VEN = 5V

—

µS EN Low to High, 90% of

VOUT; Note 4

—

C

Die Temperature Hysteresis

TSDHYS

—

10

—

C

Note 1: 3.3 K resistive load, 3.3VOUT (1 mA).

2: For VIN > VOUT, VOUT will not remain in regulation.

3: IQ is measured from VOUT; VIN quiescent current will vary with boost ratio. VIN quiescent current can be

estimated by: (IQPFM * (VOUT/VIN)), (IQPWM * (VOUT/VIN)).

4: 220 resistive load, 3.3VOUT (15 mA).

5: Peak current limit determined by characterization, not production tested.

TEMPERATURE SPECIFICATIONS

Electrical Specifications:

Parameters

Sym Min Typ

Max Units

Conditions

Temperature Ranges

Operating Junction Temperature

TJ

-40

—

+125

°C Steady State

Range

Storage Temperature Range

TA

-65

—

+150

°C

Maximum Junction Temperature

TJ

—

—

+150

°C Transient

Package Thermal Resistances

Thermal Resistance, 5L-TSOT23

JA

—

192

Thermal Resistance, 8L-2x3 DFN JA

—

93

—

°C/W EIA/JESD51-3 Standard

—

°C/W

DS22234A-page 4

 2010 Microchip Technology Inc.

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