ST735 datasheet(4/9 Pages) STMICROELECTRONICS

4 / 9 page

ST735

4/9

ELECTRICAL CHARACTERISTICS (Refer to test circuit, VIN=5V, CIN =4.7µF, COUT =10µF, L = 10µH,

Tamb = -40 to 125°C, unless otherwise specified. Typical value are referred at Tamb= 25°C)

Note1 : Tested at IVREF =0mA

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VIN

Input Voltage

6.2

VOUT

Output Voltage

VIN = 4.5V to 6.2V IOUT = 0 to 200mA

Tamb= -40 to 125°C

-5.25

-5

-4.75

VIN = 4.0V to 6.2V IOUT = 0 to 175mA

Tamb= -40 to 125°C

-5.25

-5

-4.75

IOUT

Output Current

VIN = 4.5V to 6.2V Tamb= 0 to 125°C

200

275

VIN = 4.5V to 6.2V IOUT = 0 to 175mA

Tamb= -40 to 125°C

175

VIN = 4.0V

VOUT = -5V

175

ISUPPLY Supply Current

Includes Switch Current

0.8

1.6

ISTANDBY Standby Current

VSHDN =0V

µA

ISC

Short Circuit Current

1.5

VLO

Undervoltage Lock-out

3.5

∆V

OUT

Line Regulation

VIN = 4.0V to 6.2V

0.1

%/V

∆V

OUT

Load Regulation

IOUT = 0 to 200mA

0.003

%/mA

VREF

Reference Voltage

Tamb=25°C (Note 1)

1.247

∆V

REF

Reference Drift

Tamb= -40 to 125°C

ppm/°C

RDSON

LX ON Voltage

0.5

Ω

ILEAK

LX Leakage Current

VDS = 10V

µA

ISH

Shutdown Pin Current

µA

VIL

Shutdown Input Low

Threshold

0.25

VIH

Shutdown Input High

Threshold

fOSC

Maximum Oscillator

Frequency

160

KHz

Efficency

IOUT = 100mA

RCC

Compensation Pin

Impedance on CC Pin

7.5

Ω

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