SC1185A View Datasheet(PDF) - Semtech Corporation

Part Name

Description

MFG CO.

SC1185A

PROGRAMMABLE SYNCHRONOUS DC/DC CONVERTER, DUAL LOW DROPOUT REGULATOR CONTROLLER

Semtech Corporation 

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PRELIMINARY - January 6, 1999

PROGRAMMABLE SYNCHRONOUS DC/DC

CONVERTER, DUAL LOW DROPOUT

REGULATOR CONTROLLER

SC1185

SC1185A

MATERIALS LIST

Qty. Reference

Part/Description Vendor Notes

4 C1,C5,C13,C18 0.1µF Ceramic

Various

6 C2,C3,C14-C17 1500µF/6.3V

SANYO MV-GX or equiv. Low ESR

1 C9

1000µF

2 C11,C21

330µF/6.3V

Various

1 L1

4µH

8 Turns 16AWG on MICROMETALS T50-52D core

2 Q1,Q2

1 Q3

See notes

IRLML2803

See notes

IR

FET selection requires trade-off between efficiency and

cost. Absolute maximum RDS(ON) = 22 mΩ for Q1,Q2

.25Ω 30V SOT23 (or equavilent)

1 Q4

IRFZ14S

IR

Or equivalent

1 R4

5mΩ

IRC

OAR-1 Series

1 R5

2.32kΩ, 1%, 1/8W Various

1 R6

1kΩ, 1%, 1/8W Various

1 R1

10Ω, 5%, 1/8W Various

1 U1

SC1185CSW

SEMTECH

© 1999 SEMTECH CORP.

6

652 MITCHELL ROAD NEWBURY PARK CA 91320

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