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LINEAR TECHNOLOGY  LT1374CR#PBF  DC-DC Switching Step Down Regulator, Adjustable, 5V-25Vin, 2.42V-21.5Vout, 4.5Aout, TO-252-7

LINEAR TECHNOLOGY LT1374CR#PBF
Technical Data Sheet (703.32KB) EN See all Technical Docs

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Product Overview

The LT1374CR#PBF is a monolithic buck-mode Switching Regulator for use with battery-powered systems. A 4.5A switch is included on the die along with all the necessary oscillator, control and logic circuitry. High switching frequency allows a considerable reduction in the size of external components. The topology is current mode for fast transient response and good loop stability. Both fixed output voltage and adjustable parts are available. A special high speed bipolar process and new design techniques achieve high efficiency at high switching frequency. Efficiency is maintained over a wide output current range by using the output to bias the circuitry and by utilizing a supply boost capacitor to saturate the power switch. Full cycle-by-cycle short-circuit protection and thermal shutdown are provided. Standard surface mount external parts may be used, including the inductor and capacitors. A shutdown signal reduces supply current to 20µA.
  • Uses all surface mount components
  • Cycle-by-cycle current limiting
  • Easily synchronizable
  • Inductor size reduced to 1.8µH
  • 0.07Ω Saturating switch design

 

Product Information

Input Voltage Min:
5V
Input Voltage Max:
25V
No. of Outputs:
1Outputs
DC / DC Converter IC Case:
TO-252
No. of Pins:
7Pins
Output Current:
4.5A
Output Voltage Min:
2.42V
Output Voltage Max:
21.5V
Switching Frequency:
500kHz
Topology:
Buck (Step Down)
Operating Temperature Max:
125°C
Packaging:
Cut Tape
Product Range:
-
MSL:
MSL 1 - Unlimited
Operating Temperature Min:
0 °C
Primary Input Voltage:
25 V
SVHC:
No SVHC (17-Dec-2015)
Output Voltage:
21.5 V

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Applications

  • Portable Devices;
  • Power Management

Legislation and Environmental

Moisture Sensitivity Level:
MSL 1 - Unlimited
Product Traceability
RoHS Compliant:
Y-Ex

Substitutes

Associated Products