SC185EULTRT datasheet(6/18 Pages) SEMTECH

Part #	SC185EULTRT

Description	4A Synchronous Step-Down Regulator

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Manufacturer	SEMTECH [Semtech Corporation]

Direct Link	http://www.semtech.com

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6 / 18 page

SC185

Block Diagram

10

+

-

PWM

-

+

9

6

0.5V

BANDGAP

Control Logic

&

MOSFET Drivers

Power Good

Logic & Delay

7

+

-

0.45V

1

2

14

15

16

11

12

13

Faults

4

5

3

Oscillator

& Ramp

AVIN

PGOOD

AGND

VOUT

SS

EN

MODE

PGND

LX

PVIN

Error Amp.

PWM Comp.

PGood Comp.

UVLO

5µA

Faults

+

-

0.575V

OVP Comp.

www.semtech.com

6

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SC185EULTRT Datasheet(PDF) 6 Page - Semtech Corporation

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