LTC2900 View Datasheet(PDF) - Linear Technology

Part Name

Description

Manufacturer

LTC2900

Programmable Quad Supply Monitor with Adjustable Reset Timer

Linear Technology 

LTC2900

TYPICAL APPLICATIO

Monitor Eight Supplies Using Supervisory Cascade

12V (ADJ), 5V, 3.3V, 3V, 2.5V, 1.8V, 1V (ADJ), – 5V (– ADJ)

R5A

86.6k 1%

1V

R3A

2150k 1%

12V

R4A R6A

100k 100k

1% 1%

CRTA

3V

1

V3

V2 10

5V 2 V1

9

V4

3 LTC2900-2 8

CRT

VREF

4

7

RST

VPG

5

PBR

6

GND

20k

R1A

40.2k

1%

R2A

59k

1%

–5V

2.5V

1.8V

3.3V

CRTB

100k

R3B

464k 1%

MASTER

RESET

1

V3

V2 10

2 V1

9

V4

3 LTC2900-2 8

CRT

VREF

4

7

RST

VPG

5

PBR

6

GND

R4B

121k

1%

R1B

22.1k

1%

R2B

78.7k

1%

2900 TA06

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LTC1726-5

LTC1727-2.5/LTC1727-5

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LTC2902

DESCRIPTION

5V Supply Monitor, Watchdog Timer and Battery Backup

3.3V Supply Monitor, Watchdog Timer and Battery Backup

5V Supply Monitor and Watchdog Timer

5V Supply Monitor, Watchdog Timer and Push-Button Reset

Micropower Precision Triple Supply Monitor for 5V, 3.3V and ADJ

Micropower Precision Triple Supply Monitor for 2.5V, 3.3V and ADJ

Precision Triple Supply Monitor for PCI Applications

Micropower Triple Supply Monitor for 2.5V, 3.3V and ADJ

Micropower Triple Supply Monitor for 5V, 3.3V and ADJ

Micropower Triple Supply Monitors with Open-Drain Reset

Micropower Triple Supply Monitors with Open-Drain Reset

Micropower Triple Supply Monitors with Open-Drain Reset

Micropower Triple Supply Monitor with Push-Pull Reset Output

Programmable Quad Supply Monitor

Programmable Quad Supply Monitor

COMMENTS

4.65V Threshold

2.9V Threshold

4.65V Threshold

4.37V/4.62V Threshold

4.725V, 3.118V, 1V Thresholds (±0.75%)

2.363V, 3.118V, 1V Thresholds (±0.75%)

Meets PCI tFAIL Timing Specifications

Adjustable RESET and Watchdog Time-Outs

Adjustable RESET and Watchdog Time-Outs

Individual Monitor Outputs in MSOP

5-Lead SOT-23 Package

5-Lead SOT-23 Package

5-Lead SOT-23 Package

Adjustable Reset and Watchdog Timers, 16-Lead

Narrow SSOP Package

Adjustable Reset Timer, Supply Tolerance and

Margining Functions, 16-Lead Narrow SSOP Package

16 Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

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

2900f

LT/TP 0403 2K • PRINTED IN USA

© LINEAR TECHNOLOGY CORPORATION 2002

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