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LTC2926

Features: · Flexible Power Supply Tracking and Sequencing· Adjustable Ramp Rates, Offsets and Time Delays· Controls Three Supplies with Series MOSFETs· Integrated Remote Sense Switching·FAULT Input/Output· STATUS Output/Power Good Input· Available in 20-Lead Narrow SSOP and 20-Lead QFN (4mm × 5mm)...

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SeekIC No. : 004402158 Detail

LTC2926: Features: · Flexible Power Supply Tracking and Sequencing· Adjustable Ramp Rates, Offsets and Time Delays· Controls Three Supplies with Series MOSFETs· Integrated Remote Sense Switching·FAULT Input/...

LTC2926 Data Sheet

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Part Number:
LTC2926
Supply Ability:
5000

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

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Product Details

Description



Features:

· Flexible Power Supply Tracking and Sequencing
· Adjustable Ramp Rates, Offsets and Time Delays
· Controls Three Supplies with Series MOSFETs
· Integrated Remote Sense Switching
· FAULT Input/Output
· STATUS Output/Power Good Input
· Available in 20-Lead Narrow SSOP and 20-Lead QFN (4mm × 5mm) Packages


Application

· VCORE and V I/O Supply Tracking
· Microprocessor, DSP and FPGA Supplies
· Servers
· Communications Systems


Pinout

Connection Diagram


Specifications

Supply Voltage (VCC) ............................ 0.3V to 10V
Input Voltages
ON ........................................................ 0.3V to 10V
RAMP .............................................0.3V to VCC + 1V
TRACK1, TRACK2 ........................0.3V to VCC + 0.3V
PGTMR ........................................0.3V to VCC + 0.3V
Input/Output Voltages
FAULT ................................................... 0.3V to 10V
STATUS/PGI (Note 3) ......................... 0.3V to 11.5V
Output Voltages
RAMPBUF ...................................0.3V to VCC + 0.3V
FB1, FB2, D1, S1, D2, S2 ...................... 0.3V to 10V
MGATE, RSGATE (Note 3) .................. 0.3V to 11.5V
SGATE1, SGATE2 (Note 3) ................. 0.3V to 11.5V
(Notes 1, 2)
RMS Currents
TRACK1, TRACK2 ................................................5mA
FB1, FB2 .............................................................5mA
D1, S1, D2, S2 ..................................................30mA
Operating Temperature
LTC2926C ........................................... 0°C to 70°C
LTC2926I ....................................... 40°C to 85°C
Storage Temperature Range
GN Package .................................. 65°C to 150°C
UFD Package ................................ 65°C to 125°C
Lead Temperature (Soldering, 10 sec)
GN Package ................................................... 300°C


Description

The LTC2926 provides a simple solution for tracking and sequencing up to three power supply rails. An N-channel MOSFET and a few resistors per channel confi gure the load voltages to ramp up and down together, with voltage offsets, with time delays or with different ramp rates.

Automatic remote sense switching compensates for voltage drops across the MOSFETs. The LTC2926 provides two integrated switches as well as a signal to control optional additional external N-channel MOSFET sense switches.

The LTC2926 includes I/O signals for communication with other devices. The status output asserts after tracking and sequencing have completed. A low voltage on the power good input after an adjustable timeout period causes load disconnect. A low voltage on the fault I/O causes immediate load disconnect. Until it is reset, a fault latch prevents tracking and keeps the loads disconnected.




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