LTC3632

PRODUCTION

High Efficiency, High Voltage 20mA Synchronous Step-Down Converter

Data Sheet Product Selection Table
Part Models
8
1ku List Price
Starting From $2.95
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Part Details

  • Wide Input Voltage Range: Operation from 4.5V to 50V
  • Overvoltage Lockout Provides Protection Up to 60V
  • Internal High Side and Low Side Power Switches
  • No Compensation Required
  • 20mA Output Current
  • Low Dropout Operation: 100% Duty Cycle
  • Low Quiescent Current: 12μA
  • Wide Output Voltage Range: 0.8V to VIN
  • 0.8V ±1% Feedback Voltage Reference
  • Adjustable Peak Current Limit
  • Internal and External Soft-Start
  • Precise RUN Pin Threshold with Adjustable Hysteresis
  • Few External Components Required
  • Low Profile (0.75mm) 3mm × 3mm DFN and Thermally Enhanced MS8E Packages
 
LTC3632
High Efficiency, High Voltage 20mA Synchronous Step-Down Converter
5V, 20mA Step-Down Converter Efficiency and Power Loss vs Load Current Product Package 1 Product Package 2
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Technical Articles 2

Data Sheet

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

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Hardware Ecosystem

Parts Product Life Cycle Description
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PowerPath, Ideal Diodes, and Load Switches 1
LTC4359
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Surge Stopper, Overvoltage, and Overcurrent Protection 1
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TimerBlox 1
LTC6991
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Tools & Simulations

LTspice 3

Models for the following parts are available in LTspice:

  • LTC3632
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
DC1507A

LTC3632EDD Demo Board | 60V Transients, 4.5V ≤ VIN ≤ 50V, VOUT = 1.8V/3.3V/5V @ 20mA

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Product Details

Demonstration circuit 1507A is a high efficiency step-down DC/DC converter featuring LTC3632EDD with internal high side and synchronous power switches that draws only 12µA quiescent current. It has a wide 4.5V to 50V input range and internal over voltage monitor capable of protecting the part through 60V surges. The jumper selectable outputs are 1.8V, 3.3V and 5V. LTC3632EDD can supply up to 20mA load current with a programmable peak current limit that provides a simple method for optimizing efficiency in lower current applications.
DC1507A
LTC3632EDD Demo Board | 60V Transients, 4.5V ≤ VIN ≤ 50V, VOUT = 1.8V/3.3V/5V @ 20mA
DC1507A - Schematic

Latest Discussions

3 Years Ago
RE: LTC3632 glitch when slowly increasing Vin
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