LTC1753_15 datasheet(24/24 Pages) LINER

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LTC1753

1753fa

LT/TP 1201 1.5K REV A • PRINTED IN USA

©LINEAR TECHNOLOGY CORPORATION 1998

PART NUMBER DESCRIPTION

COMMENTS

LTC1530

High Power Synchronous Step-Down Controller

SO-8 with Current Limit, No RSENSE

TM Saves Space, Fixed Frequency

Ideal for 5V to 3.3V or Lower

LTC1628

Dual High Efficiency Low Noise Synchronous Step-Down

Constant Frequency, Standby 5V and 3.3V LDOs, 3.5V

≤ VIN ≤ 36V

Switching Regulator

LTC1553L

5-Bit Programmable Synchronous Switching Regulator

DAC Code Conforms to the Intel Pentium II Processor VRM8.2

Controller for Pentium II Processor

DC/DC Converter Specification

LT1585-1.5

Fixed 1.5V, 4.6A and 5A Low Dropout,

GTL+ Power Supplies

Fast Response GTL+ Regulators

LTC1629

PolyPhase

TM High Efficiency Controller

Expandable Up to 12 Phases, 28-Lead SSOP, Up to 200A

LTC1703

2-Phase, Dual Synchronous Controller with VID

Mobile VID Code, Each Output Up to 15A, VIN = 5V for I/O and Core

LTC1706-81

5-Bit VID Programmer

Desktop Pentium III Processors, VIN ≤ 7V

LTC1709

High Efficiency, Synchronous Step-Down Switching Regulator

Current Mode, VIN to 36V, IOUT Up to 42A

with 5-Bit VID

LTC1735

High Efficiency Low Noise Synchronous Step-Down

Drives Synchronous N-Channel FETs, VIN ≤ 36V

Switching Regulator

LTC1772

SOT-23 Step-Down Controller

100% Duty Cycle, Up to 4A, 2.2V to 9.8V VIN

LTC1873

Dual 550kHz Synchronous 2-Phase Switching Regulator

Desktop VID Codes, IOUT Up to 25A on Each Channel, 28-Lead SSOP

Controller with 5-Bit VID

LTC1929

2-Phase, High Efficiency, Synchronous Step-Down

Current Mode Ensures Accurate Current Sensing, VIN Up to 36V,

Switching Regulator

IOUT Up to 42A, 28-Lead SSOP

No RSENSE and PolyPhase are trademarks of Linear Technology Corporation.

RELATED PARTS

Figure 11. Single Supply LTC1753 5V to 1.3V-3.5V Application with Thermal Monitor

PWRGD

FAULT

VID0 TO VID4

OUTEN

COMP

SGND

SENSE

Q1*

Q2*

VCC

PVCC

VIN

LO†

1.3

µH

14A

LTC1753

IFB

VFB

µF

1.8k

1753 F11

4700pF

15k

5.6k

CSS

0.1

µF

0.1

µF

Ω

µF

GND

IMAX

820

Ω

CIN**

1200

µF

× 3

VOUT

14A

COUT††

2700

µF

× 5

150pF

CPU

DALE

NTHS-1206N02

MOUNT THERMISTER

IN CLOSE THERMAL

PROXIMITY TO Q1

270pF

1N5817

0.1

µF

* SILICONIX Si4410

** SANYO 10MV1200GX

† PANASONIC ETQP 6FIR3LFA

†† SANYO 6MV2700GX

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

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

TYPICAL APPLICATIO

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