LT1936

PRODUCTION

1.4A, 500kHz Step-Down Switching Regulator

Data Sheet Product Selection Table
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Overview

  • Wide Input Range: 3.6V to 36V
  • Short-Circuit Protected Over Full Input Range
  • 1.9A Guaranteed Minimum Switch Current
  • 5V at 1.4A from 10V to 36V Input
  • 3.3V at 1.4A from 7V to 36V Input
  • 5V at 1.2A from 6.3V to 36V Input
  • 3.3V at 1.2A from 4.5V to 36V Input
  • Output Adjustable Down to 1.20V
  • 500kHz Fixed Frequency Operation
  • Soft-Start
  • Uses Small Ceramic Capacitors
  • Internal or External Compensation
  • Low Shutdown Current: <2µA
  • Thermally Enhanced 8-Lead MSOP Package
LT1936
1.4A, 500kHz Step-Down Switching Regulator
3.3V Step-Down Converter Efficiency Product Package 1
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Documentation

Data Sheet 1

User Guide 1

Design Note 1

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Circuit Monitors 1
LTC2960
RECOMMENDED FOR NEW DESIGNS 36V Nano-Current Two-Input Voltage Monitor
Power System Management (PSM) & Sequencers 1
LTC2974
RECOMMENDED FOR NEW DESIGNS 4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement
Protection Switches & Controllers 1
LT4363
RECOMMENDED FOR NEW DESIGNS High Voltage Surge Stopper with Current Limit
Switching Regulators & Controllers 1
LTC3880
RECOMMENDED FOR NEW DESIGNS Dual Output PolyPhase Step-Down DC/DC Controller with Digital Power System Management
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Tools & Simulations

LTspice 1

Models for the following parts are available in LTspice:

  • LT1936
LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

eval board
schematic 1
DC825A

LT1936EMS8E Demo Board | VIN = 4.5V to 36V, VOUT = 5V or 3.3V @1.2A

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Product Details

Demonstration circuit 825 is a monolithic step-down DC/DC switching regulator featuring the LT1936. The demo board is optimized for 3.3V output at 1.2A from a 4.5V to 36V input or a 5V, 1.2A output from a 6.8V to 36V input. The output is selectable by placing the JP1 jumper at the 3.3V or 5V position.
DC825A
LT1936EMS8E Demo Board | VIN = 4.5V to 36V, VOUT = 5V or 3.3V @1.2A
DC825A - Schematic

Latest Discussions

3 Years Ago
I use LT1936 to creat 5V output，Io=70mA，when VIN=10V,Io=70mA，When VIN=24V，Io=70mA，and the chip heats seriously。Please help me。
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