GS-R120251.5 datasheet(4/7 Pages) STMICROELECTRONICS

4 / 7 page

GS-R12P

4/7

PIN DESCRIPTION

ELECTRICAL CHARACTERISTICS All versions (Tamb=25)C, unless otherwise specified.)

ELECTRICAL CHARACTERISTICS for horizontal versions only (Tamb=25)C, unless otherwise specified.)

Function

Description

Input +

DC input voltage

Input/Output GND

Return for input/output voltage source

3Vout

Regulated power output

INH

A logical level (active high) disables the device, when it is open an internal pull

up disables the device

5Vout-c

Regulated output point for additional compensation

Feedback input, available on adjustable device and on request for additional

compensation

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

Ripple Voltage

Vi =12V Io = 1.5A

mVpp

Temperature Stability

Vi =Vo + 1.5V Io = 1.5A

mV/°C

Output Current

Vi =4.5 ÷ 16V

01.5

IoL

Current Limit

Vi =4.5 ÷ 16V

2.5

Quiescent Current

Vi =12V Io = 0A

1.8

2.5

Switching Frequency

Vi =12V Io = 1.5A

225

250

275

kHz

SRV

Supply Voltage Rejection

mV/V

Rth

Thermal Resistance

Case to ambient

°C/W

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

Iqst-by

Total Stand-by Quiescent

Current

Vinh>2.2V Vi = 15V

100

µA

INH

INH Threshold Voltage

Device ON

0.8

Device OFF

2.2

VFB

Feedback Voltage

Vi =4.5 ÷ 15V Io = 0÷1.5A

1.22

1.235

1.25

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