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LTC3773

Features: Current Mode Controller with Onboard MOSFET Drivers Programmable Power Up/Down Tracking Wide VIN Range: 3.3V to 36V (VCC = 5V) ±1% 0.6V VFB Accuracy Over Temperature Power Good Output Voltage Monitor Phase-Lockable or Adjustable Frequency:160kHz to 700kHz OPTI-LOOP® Compensation Mi...

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SeekIC No. : 004402341 Detail

LTC3773: Features: Current Mode Controller with Onboard MOSFET Drivers Programmable Power Up/Down Tracking Wide VIN Range: 3.3V to 36V (VCC = 5V) ±1% 0.6V VFB Accuracy Over Temperature Power Good Output Vo...

LTC3773 Data Sheet

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Part Number:
LTC3773
Supply Ability:
5000

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

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Product Details

Description



Features:

Current Mode Controller with Onboard MOSFET Drivers
Programmable Power Up/Down Tracking
Wide VIN Range: 3.3V to 36V (VCC = 5V)
±1% 0.6V VFB Accuracy Over Temperature
Power Good Output Voltage Monitor
Phase-Lockable or Adjustable Frequency:160kHz to 700kHz
OPTI-LOOP® Compensation Minimizes COUT
Current Foldback and Overvoltage Protection
Selectable Continuous, Discontinuous or Burst Mode® Operation at Light Load
Programmable Phase Operation
Available in 5mm x 7mm QFN and 36-Lead SSOP Packages


Application

Servers, Telecom, Industrial Power Supplies
General Purpose Multiple Rail DC/DC
FPGA and DSP Requirements


Pinout

Connection Diagram


Specifications

Topside Driver Voltage (BOOSTn) .............. 42V to 0.3V
Switch Voltage (SWn) ................................... 36V to 1V
Boosted Driver Voltage (BOOSTn SWn) .... 7V to 0.3V
Supply Voltages (VCC, VDR) .......................... 7V to 0.3V
PGOOD, PHASEMD, PLLFLTR, PLLIN/FC, SDBn,
TRACKn, VFBn ..............................(VCC + 0.3V) to 0.3V
SENSE+n, SENSEn ...................... (1.1 • VCC) to 0.3V
ITHn Voltage ............................................ 2.7V to 0.3V
Extended Commercial Operating
Temperature Range (Note 2) ...............40°C to 85°C
Junction Temperature (Note 2) ........................... 125°C
Storage Temperature Range .............65°C to 125°C
Lead Temperature (Soldering, 10 sec)
G Package ......................................................... 300°C
Peak Body Temperature UHF Package .............. 240°C


Description

The LTC®3773 is a high performance, 3-phase, triple output synchronous step-down switching regulator controller with output voltage power up/down tracking capability. The controller allows for sequential, coincident or ratiometric tracking.

This 3-phase controller of LTC3773 drives its output stages with 120°phase separation at frequencies of up to 700kHz per phase
minimizing the RMS input current. Light load effi ciency can be maximized by using selectable Burst Mode operation.The 0.6V precision reference supports output voltages from 0.6V to 5V.

Fault protection of LTC3773 features include output overvoltage, input undervoltage lockout plus current foldback under shortcircuit or overload conditions.




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