LT3430

PRODUCTION

High Voltage, 3A, 200kHz Step-Down Switching Regulator

Data Sheet Product Selection Table
Part Models
8
1ku List Price
Starting From $6.57
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Part Details

  • Wide Input Range: 5.5V to 60V
  • 3A Peak Switch Current over All Duty Cycles
  • Constant Switching Frequency:
    • 200kHz (LT3430)
    • 100kHz (LT3430-1)
  • 0.1Ω Switch Resistance
  • Current Mode
  • Effective Supply Current: 2.5mA
  • Shutdown Current: 30µA
  • 1.2V Feedback Reference Voltage
  • Easily Synchronizable
  • Cycle-by-Cycle Current Limiting
  • Small, 16-Pin Thermally Enhanced TSSOP Package
LT3430
High Voltage, 3A, 200kHz Step-Down Switching Regulator
5V, 2A Buck Converter Efficiency vs Load Current Product Package 1
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 2

Design Note 2

Technical Articles 1

Data Sheet

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

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Hardware Ecosystem

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Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

  • LT3430
  • LT3430-1
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
DC1200A

LT3430EFE-1 Demo Board | 5.5V ≤ VIN ≤ 60V, VOUT = 3.3V at 2A

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Product Details

Demonstration circuit 1200 is a 60V, 100kHz, monolithic step-down DC/DC switching converter using the LT3430-1. The circuit is designed for a 5.5V to –60V input, and provides a 3.3V output at 2A load current.

eval board
schematic 2
schematic 3
schematic 4
schematic 5
schematic 6
DC471A

LT3430EFE | High Voltage Buck Converter, VIN = 7.5V to 60V, VOUT = 5V @ 2A

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Product Details

Demonstration circuit 471 is a 60V, 200kHz, monolithic step-down DC/DC switching converter using the LT3430. The circuit is designed for a 7.5V to –60V input, and provides a 5.0V output at 2A load current.
DC1200A
LT3430EFE-1 Demo Board | 5.5V ≤ VIN ≤ 60V, VOUT = 3.3V at 2A
DC1200A - Schematic
DC471A
LT3430EFE | High Voltage Buck Converter, VIN = 7.5V to 60V, VOUT = 5V @ 2A
DC471A Demo Board DC471A Demo Board DC471A Demo Board DC471A Demo Board DC471A - Schematic

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