SC2441AEVB View Datasheet(PDF) - Semtech Corporation

Part Name

Description

MFG CO.

SC2441AEVB

1.8V to 20V Input 2-Phase Synchronous Step-down Controllers with Step-up Converter

Semtech Corporation 

Prev 11 12 13 14 15 16 17 18 19 20 Next

POWER MANAGEMENT

SC2441A

Vcc

4.5V

1.25V

3.3V

VSOFT-START

Enable Hiccup

1.85V

VCOMP

PWM

VOUT

Figure 6a. SC2441A Start-up Timing Diagram

VSOFT-START-CAP

VO

70% X VO Setpoint

0.8V 1.25V

3.3V

Enable

Hiccup

1.85V

VCOMP

VO

PWM

0.5V

Disable Hiccup

restart

Figure 6b. SC2441A Overload Hiccup Operation Timing Diagram

 2006 Semtech Corp.

11

www.semtech.com

Share Link: