LTC1438CG-ADJ View Datasheet(PDF) - Linear Technology

Part Name

Description

MFG CO.

LTC1438CG-ADJ

Dual High Efficiency, Low Noise, Synchronous Step-Down Switching Regulators

Linear Technology 

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LTC1438/LTC1439

TYPICAL APPLICATION

3.3V to 2.9V at 3A Low Noise Linear Regulator

2.9V

ON/OFF

AUXDR

LTC1439

AUXFB

AUXON

6.8nF

47k

22pF

5V

27Ω

Q1

MMBT2907ALTI

100Ω 10Ω

3.3V

ZETEX

FZT849

(SURFACE MOUNT)

316k

1%

221k

1%

2.9V

3A

+ 330µF

×2

1438 TA05

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PART NUMBER

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LT®1375/LT1376

DESCRIPTION

High Efficiency Step-Down Switching Regulator Controller

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LTC1437

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LT1510

Constant-Voltage/Constant-Current Battery Charger

LTC1538-AUX

Dual, Synchronous Controller with AUX Regulator

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Dual High Efficiency, Low Noise, Synchronous Step-Down

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LTC1778

Fast Step-Down Synchronous Controller

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COMMENTS

Synchronous, VIN ≤ 40V, For Logic Threshold FETs

High Frequency, Small Inductor, High Efficiency

Switchers, 1.5A Switch

Full-Featured Single Controller

1.3A, Li-Ion, NiCd, NiMH, Pb-Acid Charger

5V Standby in Shutdown

5V Standby in Shutdown

Fast Transient Response; No RSENSE

Minimum CIN and COUT, 550kHz/Phase; Current Mode

32 Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com

14389fb

LT/LT 0305 REV B • PRINTED IN USA

© LINEAR TECHNOLOGY CORPORATION 1996

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