LTC2924(RevA) 查看數據表（PDF） - Linear Technology

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LTC2924
(Rev.:RevA)

Quad Power Supply Sequencer

Linear Technology 

LTC2924

TYPICAL APPLICATIO

12V 3-Supply Sequencer with LTC2924 Power Supplied by a Zener Shunt Regulator

12V

SYSTEM

12V

SUPPLY

VIN 1.2V

SHDN

ON ≥ 1.1V, OFF ≤ 1.09V

1k

µC

VCC1

VCC2

RESET_B

VIN 3.3V

SHDN

ON ≥ 3V, OFF ≤ 2.8V

20k

1.24k

FPGA

VCC1

VCC2

5.1V

ZENER

BZX84C5V1

VIN 2.5V

SHDN

ON ≥ 2.2V, OFF ≤ 2V

20k

49.9k

ON

OUT4

1.5k 2.94k

IN4

OUT3

LTC2924 IN3

VCC

0.1µF

OUT2

IN2

OUT1

IN1

HYS/CFG

DONE

49.9k

FAULT

TMR GND PGT

7.68k

150nF

150nF

5.11k

ASIC

VCC1

VCC2

VCC

10k

VCC

10k

2924 TA08

RELATED PARTS

PART NUMBER

LTC2920-1/ LTC2920-2

LTC2921/LTC2922

LTC2923

LTC2925

LTC2926

LTC2927

DESCRIPTION

Single/Dual Power Supply Margining Controller

Power Supply Tracker with Input Monitors

Power Supply Tracking Controller

Multiple Power Supply Tracking Controller

Master Controlled Power Supply Tracker

Single Power Supply Tracker

COMMENTS

Symmetric/Asymmetric High and Low Voltage Margining

3 (LTC2921) or 5 (LTC2922) Remote Sense Switching

Up to 3 Supplies

Power Good Timer, Remote Sense Switch

Closed Loop (Feedback) Tracking for 3 Supplies

For Point of Load or Distributed Applications

20 Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

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

2924fa

LT/LT 1005 REV A • PRINTED IN USA

 LINEAR TECHNOLOGY CORPORATION 2005

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