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LINEAR TECHNOLOGY  LTC3812EFE-5#PBF  DC/DC Controller, Current Mode, 4.35V to 14V, 1 Output, Synchronous Buck, 1MHz, TSSOP-16

LINEAR TECHNOLOGY LTC3812EFE-5#PBF
Technical Data Sheet (402.17KB) EN See all Technical Docs

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Product Overview

The LTC3812EFE-5#PBF is a synchronous step-down Switching Regulator Controller can directly step down voltages from up to 60V input, making it ideal. The LTC3812-5 uses constant on-time valley current control architecture to deliver very low duty cycles with accurate cycle-by-cycle current limit without requiring a sense resistor. A precise internal reference provides 0.5% DC accuracy. A high bandwidth (25MHz) error amplifier provides very fast line and load transient response. Large 1R gate drivers allow the LTC3812-5 to drive large power MOSFETs for higher current applications. The operating frequency is selected by an external resistor and is compensated for variations in VIN. A shutdown pin allows the controller to be turned off reducing the supply current to <230µA. Integrated bias control generates gate drive power from the input supply during start-up and when an output short-circuit occurs. When in regulation, power is derived from the output for higher efficiency.
  • Large 1R Gate drivers
  • No current sense resistor required
  • Dual N-channel MOSFET synchronous drive
  • Extremely fast transient response
  • Programmable soft-start
  • Selectable pulse-skipping mode operation
  • Power good output voltage monitor
  • Adjustable cycle-by-cycle current limit
  • Undervoltage lockout on driver supply
  • Output overvoltage protection

 

Product Information

Supply Voltage Min:
4.35V
Supply Voltage Max:
14V
No. of Outputs:
1 Output
Duty Cycle (%):
-
Controller IC Case Style:
TSSOP
No. of Pins:
16Pins
Switching Frequency:
1MHz
Topology:
Synchronous Buck (Step Down)
Operating Temperature Min:
-40°C
Operating Temperature Max:
125°C
Packaging:
Cut Tape
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Industrial;
  • Communications & Networking;
  • Automotive;
  • Power Management;
  • Automation & Process Control

Legislation and Environmental

Moisture Sensitivity Level:
MSL 1 - Unlimited
Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000258

Associated Products