LTC3785-1(RevA) データシートの表示（PDF） - Linear Technology

部品番号

コンポーネント説明

メーカー

LTC3785-1
(Rev.:RevA)

10V, High Efficiency, Buck-Boost Controller with Power Good

Linear Technology 

LTC3785-1

TYPICAL APPLICATION

Li-Ion/9V Wall Adapter to 5V/2A

VIN

2.7V TO 10V

9V REGULATED

WALL ADAPTER

1nF

66.5k 205k

VIN

RUN/SS

VSENSE

VCC

ISVIN

TG1

270pF

VBST1

205k

1.3k

66.5k

1nF

12k

59k

SW1

ISSW1

VDRV

FB

BG1

LTC3785-1

VC

RT

ISVOUT

100k

TG2

VOUT

PGOOD

MODE

VBST2

42.2k

ILSET

SW2

ISSW2

CCM

BG2

GND

CVCC

4.7μF

MA

CMDSH-3

CA

0.22μF

MB

MD

CMDSH-3

CB

0.22μF

MC

+ Li-Ion

2.7V TO 4.2V

CIN

22μF

MA = MB = MC = MD = 1/2 Si7940DY

L1 = RLF7030T-3R3M4R1

D1 = D2 = PMEG2020EJ

OPTIONAL

D1

L1

3.3μH

OPTIONAL

D2

VOUT

5V

2A

COUT

100μF

37851 TA03

RELATED PARTS

PART NUMBER DESCRIPTION

COMMENTS

LTC3443

1.2A IOUT, 600kHz, Synchronous Buck-Boost DC/DC Converter

VIN: 2.4V to 5.5V, VOUT: 2.4V to 5.25V, IQ = 28μA, ISD < 1μA,

MS Package

LTC3444

500mA IOUT, 1.5MHz Synchronous Buck-Boost DC/DC Converter VIN: 2.7V to 5.5V, VOUT: 0.5V to 5.25V, Optimized for WCDMA RF

Amplifier Bias

LTC3531/

LTC3531-3/

LTC3531-3.3

200mA IOUT, Synchronous Buck-Boost DC/DC Converter

VIN: 1.8V to 5.5V, VOUT: 2V to 5V, IQ = 35μA, ISD < 1μA,

MS, DFN Packages

LTC3532

500mA IOUT, 2MHz, Synchronous Buck-Boost DC/DC Converter VIN: 2.4V to 5.5V, VOUT: 2.4V to 5.25V, IQ = 35μA, ISD < 1μA,

MS, DFN Packages

LTC3533

2A Wide Input Voltage Synchronous Buck-Boost DC/DC Converter VIN: 1.8V to 5.5V, VOUT: 1.8V to 5.25V, IQ = 40μA, ISD < 1μA,

DFN Package

LTC3780

High Efficiency, Synchronous, 4-Switch Buck-Boost Controller

VIN: 4V to 36V, VOUT: 0.8V to 30V, IQ = 1.5mA, ISD < 55μA,

SSOP-24, QFN-32 Packages

LTC3785

10V, High Efficiency, Synchronous, No RSENSE, Buck-Boost

Controller

VIN: 2.7V to 10V, VOUT: 2.7V to 10V, IQ = 86mA, ISD < 15μA,

QFN-24 Package

LTM4605

5A to 12A Buck-Boost μModule

4.5V ≤ VIN ≤ 20V, 0.8V ≤ VOUT ≤ 16V, 15mm × 15mm × 2.8mm

LGA Package

LTM4607

5A to 12A Buck-Boost μModule

4.5V ≤ VIN ≤ 36V, 0.8V ≤ VOUT ≤ 24V, 15mm × 15mm × 2.8mm

LGA Package

20 Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

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

37851fa

LT 0409 REV A • PRINTED IN USA

© LINEAR TECHNOLOGY CORPORATION 2008

Share Link: