LTC1700EMS 查看數據表（PDF） - Linear Technology

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LTC1700EMS

No RSENSE Synchronous Step-Up DC/DC Controller

Linear Technology 

LTC1700

TYPICAL APPLICATIO

LTC1700 2.5V VIN 3.3V/1.8A Output Regulator

300pF

470pF

33k

470pF

30k

53.6k

1

SGND

10

SW

LTC1700

2

ITH

4

RUN/SS

8

BG

9

PGND

3

VFB

6

TG

5

7

SYNC/MODE VOUT

L1

2.2µH

M2

M1

C1 +

10µF

VIN

C2 2.5V

68µF

6.3V

C3 +

22µF

VOUT

C4 3.3V/1.8A

220µF

6.3V

C1: TAIYO YUDEN CERAMIC JMK316BJ106ML

C2: AVX TAJB68K006R

C3: TAIYO YUDEN CERAMIC JMK325BJ226M

C4: KEMET T520D227M006AS

L1: MURATA LQN6C

M1: Si9802

M2: Si9803

1700 • TA02

RELATED PARTS

PART NUMBER

LT1307/LT1307B

LT1316

LT1317

LT1517-5

LT1610

LT1611

LT1613

LT1619

LTC1625

DESCRIPTION

Single Cell Micropower Step-Up Regulator

Burst Mode Operation DC/DC with Programmable Current Limit

2-Cell Micropower Step-Up Regulator

Micropower, Regulated Charge Pump

1.7MHz Single Cell Micropower Step-Up Regulator

Inverting 1.4MHz Switching Regulator

1.4MHz Single Cell Micropower Regulator

Micropower Step-Up Regulator Controller

No RSENSE Synchronous Step-Down Controller

LTC1871

Boost, Flyback and SEPIC Controller

LTC1872

LTC3401/LTC3402

SOT-23, 550kHz Step-Up Controller

Integrated 1A and 2A Synchronous Step-Up Regulators

LTC3425

5A, Monolithic Step-Up Converter

LTC3803

SOT-23 Flyback Controller

COMMENTS

3.3V/75mA From 1V; 600kHz Fixed Frequency

1.5V Minimum VIN; Precise Control of Peak Switch Current

3.3V/200mA From Two Cells; 600kHz Fixed Frequency

3-Cells to 5V at 20mA, SOT-23 Package, 6µA IQ

30µA IQ, MSOP Package, Internal Compensation

5V to -5V at 150mA, Low Output Noise

5-Lead SOT-23 Package

Drives External NMOS; 3.3V to 5V at up to 8A

Up to 97% Efficiency; 3.7V ≤ VIN ≤ 36V;

1.19V ≤ VOUT ≤ VIN; IOUT up to 15A

5V ≤ VIN ≤ 30V; No RSENSE, Programmable Frequency

50kHz to 1MHz; 10-Lead MSOP

Minimum Board Area; Drives External NMOS

Up to 97% Efficiency; up to 3MHz Operation; No External

Diode; 0.85V Start-Up Voltage

8MHz, 4-Phase Operation, Very Low Ripple,

5mm x 5mm QFN Package

200kHz Operation, Adjustable Slope Compensation,

Internal Soft-Start

16 Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

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

1700fa

LT/TP 0804 1K REV A • PRINTED IN USA

© LINEAR TECHNOLOGY CORPORATION 2000

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