DC1386B : 3.3V @ 2A, 5.5 ~ 36V in, Inductor On-Chip

Summary

Demonstration circuit 1386 features the LTM®8032, a 2A EN55022 Class B certified step-down converter. This μModule® regulator is configured to deliver a 3.3V output from an input voltage between 5.5V to 36V at a switching frequency of 600kHz. The wide input range of the LTM8032 allows a variety of input sources. Under light load conditions, the available Burst Mode® operation supports high efficiency with low output ripple.

The LTM8032 data sheet gives a complete description of the part, operation and application information. The data sheet must be read in conjunction with this manual to modify demo circuit 1386.

Specifications

Manufacturer Analog Devices Inc.
Category AC/DC and DC/DC Conversion
Sub-Category DC/DC SMPS - Single Output
Eval Board Part Number DC1386B-ND
Eval Board Supplier Analog Devices Inc.
Eval Board Normally In Stock
Topology Step Down
Outputs and Type 1 Non-Isolated
Voltage Out: Factory Set 3.3 V
Current Out 2 A
Voltage In 5.5 ~ 36 V
Efficiency @ Conditions >83%, 5.5V in, 3.3V @ 0.1 ~ 1.5 A
>80%, 12V in, 3.3V @ 0.1 ~ 2 A
>78%, 36V in, 3.3V @ 0.8 ~ 2 A
Voltage Out Range - Not Given
Features Internal Inductor
Light Load Mode
Noise Filtering, On-Chip
Power Good Output
Soft Start
Synchronizable
Switching Frequency 600 kHz
Standby Current [Typical] 600 nA
Quiescent Current [Typical] 88 µA
Component Count + Extras 10 + 11
Internal Switch Yes
Design Author Linear Technology
Application / Target Market Automotive
Point of Load (PoL)
Portable Devices
Standby Current [Maximum]
Quiescent Current [Maximum] 120 µA
Main I.C. Base Part LTM8032
Date Created By Author 2011-04
Date Added To Library 2011-03

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Support Documents & Media

LTM8032 - Datasheet DC1386B - User Guide LTM8032 - LTspice Demo Circuit

Media

DC1386B_Schematic_Full.PNG DC1386B_Board_Full.JPG DC1386B_Chart_Full.PNG