SC1408IS.TR(2000) データシートの表示（PDF） - Semtech Corporation

部品番号

コンポーネント説明

メーカー

SC1408IS.TR
(Rev.:2000)

Low Voltage, Boost DC-DC Controller

Semtech Corporation 

August 22, 2000

BLOCK DIAGRAM

LOW VOLTAGE, BOOST DC-DC

CONTROLLER

SC1408

REF

FB

1.20V

REFERENCE

ERROR

COMP

+

-

MODE

DETECT -

+

50mV

INTERNAL BIAS

BIAS

MIN OFF TIME

ONE SHOT

Q TRIG

2.3uS

TRIG Q

16uS

MAX ON TIME

ONE SHOT

S

Q

R

LOW

VOLTAGE

OSCILLATOR

START

UP

COMP

+

-

2.5V

+

CURRENT

-

SENSE AMP

0.1V

SHDN

BST

GATE

GND

ISENSE

AGND

PIN CONFIGURATION

Top View

(SO-8/MSOP-8)

PIN DESCRIPTION

Pin # Pin Name Pin Function

1

GATE Gate drive output.

2

BST Supply voltage.

3

FB

Voltage feedback.

4

SHDN Logic high shuts down the converter.

5

REF Reference output pin.

6

AGND Small signal analog and digital ground.

7

GND Power ground.

8

ISENSE Current sense pin.

© 2000 SEMTECH CORP.

4

652 MITCHELL ROAD NEWBURY PARK CA 91320

Share Link: