LT1939

PRODUCTION

Monolithic 2A Step-Down Regulator Plus Linear Regulator/Controller

Part Models
4
1ku List Price
Starting From $3.66
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Part Details

  • Wide Input Range: 3V to 25V
  • Short-Circuit Protected Over Full Input Range
  • 2A Output Current Capability
  • Adjustable/Synchronizable Fixed Frequency Operation from 250kHz to 2.2MHz
  • Soft-Start/Tracking Capability
  • Output Adjustable Down to 0.8V
  • Adjustable Linear Regulator/Driver with 13mA Output Capability
  • Power Good Comparator with Complementary Outputs
  • Low Shutdown Current: 12μA
  • Thermally Enhanced 3mm × 3mm DFN Package
LT1939
Monolithic 2A Step-Down Regulator Plus Linear Regulator/Controller
Dual Step-Down Converters Switching Converter Efficiency Product Package 1 Output Voltage Ripple
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Documentation

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
Digital Power System Managers 1
LTC2974 RECOMMENDED FOR NEW DESIGNS 4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement
Dual-Supply Monitors 1
LTC2960 RECOMMENDED FOR NEW DESIGNS 36V Nano-Current Two-Input Voltage Monitor
Silicon Oscillators 1
LTC6908 Resistor Set SOT-23 Oscillator with Spread Spectrum Modulation
Surge Stopper, Overvoltage, and Overcurrent Protection 1
LT4363 RECOMMENDED FOR NEW DESIGNS High Voltage Surge Stopper with Current Limit
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Tools & Simulations

LTspice 1


Models for the following parts are available in LTspice:

  • LT1939
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
DC1293A

LT1939EDD | Monolithic 2A Step-Down Regulator Plus Linear Regulator/Controller

Product Details

DC1293A: Demo Board for LT1939 Monolithic 2A Step-Down Regulator Plus Linear Regulator/Controller

DC1293A
LT1939EDD | Monolithic 2A Step-Down Regulator Plus Linear Regulator/Controller
DC1293A - Schematic

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