DC770C: 50V @ 4A, 10 ~ 28V in, Boost

Summary

Demonstration circuit DC770C is a DC/DC boost converter featuring the LT3782A constant frequency current mode boost controller. The DC770C operates over 10V to 28V input and provides 4A of output current at 50V output. The 250 kHz constant frequency operation results in a small and efficient circuit. The converter provides high output voltage accuracy (typically ±3%) over wide load range with no minimum load requirement.

The demonstration circuit can be easily modified to generate different output voltages. Please consult LTC factory for details.

The DC770C has a small circuit footprint. It is a high performance and cost effective solution for Telecom, Automotive and Power-Over-Ethernet applications.

Specifications

Manufacturer Analog Devices Inc.
Category AC/DC and DC/DC Conversion
Sub-Category DC/DC SMPS - Single Output
Eval Board Part Number DC770C-ND
Eval Board Supplier Analog Devices Inc.
Eval Board Normally In Stock
Topology Step Up
Outputs and Type 1 Non-Isolated
Voltage Out: Factory Set 50 V
Current Out 4 A
Voltage In 10 ~ 28 V
Efficiency @ Conditions - Not Given
Voltage Out Range - Fixed
Features Current Limit (Adj. or Fixed)
Soft Start
Under Voltage Protection, Brown-Out
Switching Frequency 250 kHz
Standby Current [Typical] 40 µA
Quiescent Current [Typical] 11 mA
Component Count + Extras 48 + 15
Internal Switch No
Design Author Linear Technology
Application / Target Market Power: Auxiliary Power Supply
Power: Industrial Power
Telecom
Standby Current [Maximum] 90 µA
Quiescent Current [Maximum] 16 mA
Main I.C. Base Part LT3782A
Date Created By Author 2009-01
Date Added To Library 2015-07

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