LTC2925

Features: · Flexible Power Supply Tracking Up and Down· Power Supply Sequencing· Supply Stability Is Not Affected· Controls Three Supplies Without Series FETs· Controls an Optional Fourth Supply With a Series FET· Electronic Circuit Breaker· Remote Sense Switch Compensates for Voltage Drop Across ...

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SeekIC No. : 004402157 Detail

LTC2925: Features: · Flexible Power Supply Tracking Up and Down· Power Supply Sequencing· Supply Stability Is Not Affected· Controls Three Supplies Without Series FETs· Controls an Optional Fourth Supply Wit...

floor Price/Ceiling Price

Part Number:
LTC2925
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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268 Transactions

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Upload time: 2024/12/21

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Product Details

Description



Features:

· Flexible Power Supply Tracking Up and Down
· Power Supply Sequencing
· Supply Stability Is Not Affected
· Controls Three Supplies Without Series FETs
· Controls an Optional Fourth Supply With a Series FET
· Electronic Circuit Breaker
· Remote Sense Switch Compensates for Voltage Drop Across a Series FET
· Supply Shutdown Outputs
· FAULT Output
· Adjustable Power Good Timeout
· Available in Narrow 24-Lead SSOP and Tiny 24-Lead QFN Packages



Application

·VCORE and VI/O Supply Tracking
·Microprocessor, DSP and FPGA Supplies
·Servers
·Communication Systems



Pinout

  Connection Diagram


Specifications

Supply Voltage (VCC) ............................. 0.3V to 10V
Input Voltages
ON, PGI, SENSEP, SENSEN ..................... 0.3V to 10V
TRACK1, TRACK2, TRACK3 .......... 0.3V to VCC + 0.3V
SCTMR, SDTMR, PGTMR ................0.3V to VCC + 0.3V
Output Voltages
FAULT, SD1, SD2, SD3,
FB1, FB2, FB3, STATUS ........................... 0.3V to 10V
RAMPBUF, REMOTE ..................... 0.3V to VCC + 0.3V
RAMP ............................................. 0.3V to VCC + 1V
GATE (Note 3) ....................................... 0.3 to 11.5V
Average Current
TRACK1, TRACK2, TRACK3 ..................................... 5mA
FB1, FB2, FB3 ........................................................ 5mA
Operating Temperature Range
LTC2925C .............................................. 0°C to 70°C
LTC2925I........................................... 40°C to 85°C
Storage Temperature Range .......... 65°C to 150°C
Lead Temperature (Soldering, 10 sec)
MS Package ..................................................... 300°C



Description

The LTC®2925 provides a simple solution to power supply tracking and sequencing requirements. By selecting a few resistors, the supplies can be configured to ramp-up and ramp-down together or with voltage offsets, time delays or different ramp rates.

The LTC2925 controls the outputs of three independent supplies without inserting any pass element losses. For systems that require a fourth supply, or when a supply does not allow direct access to its feedback resistors, one supply can be controlled with a series FET. When the FET is used, an internal remote sense switch compensates for the voltage drop across the FET and current sense resistor, and an electronic circuit breaker provides protection from short-circuit conditions.

The LTC2925 also includes a power good timeout feature that turns off the supplies if an external supply monitor fails to indicate that the supplies have entered regulation within an adjustable time-out period.




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