ADM00821: 1.8, 2.5, 3.3, or 5V @ 2A, 4 ~ 30 Vin

Summary

ADM00821 evaluates the MIC4684, 2A, 200 kHz stepdown (buck) switching regulator woth wide input 4V to 30V (34V transient), allowing it ot be used in applications where input voltage transients may be present.

Built-in safety features include over-current protection, frequency-foldback short-circuit protection, and thermal shutdown.

Specifications

Manufacturer Microchip Technology
Category AC/DC and DC/DC Conversion
Sub-Category DC/DC SMPS - Single Output
Eval Board Part Number ADM00821-ND
Eval Board Supplier Microchip Technology
Eval Board Normally In Stock
Topology Step Down
Outputs and Type 1 Non-Isolated
Voltage Out: Factory Set 1.8 V
2.5 V
3.3 V
5 V
Current Out 2 A
Voltage In 4 ~ 30 V
Efficiency @ Conditions >80%, 5V in, 3.3V @ 0.2 ~ 1.2 A
>75%, 5V in, 2.5V @ 0.2 ~ 1.25 A
>70%, 5V in, 1.8V @ 0.1 ~ 1.05 A
Voltage Out Range 1.8 ~ 2.5 V
Features Current Limit (Adj. or Fixed)
Frequency Foldback
Over Current Protection
PWM Interface
Short Circuit Protection
Shutdown, Enable, Standby
Thermal Protection
Switching Frequency 200 kHz
Standby Current [Typical] 150 µA
Quiescent Current [Typical] 6 mA
Component Count + Extras 16 + 11
Internal Switch Yes
Design Author Microchip Technology
Application / Target Market Battery Chargers
Power: Auxiliary Power Supply
Standby Current [Maximum] - Not Given
Quiescent Current [Maximum] 12 mA
Main I.C. Base Part MIC4684
Date Created By Author 2017-07
Date Added To Library 2017-10

Eval Board

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Support Documents & Media

ADM00821 - User Guide MIC4684 - Datasheet

Media

ADM00821 - Schematic - Full ADM00821 - Board 1 - Full ADM00821 - Board 2 - Full ADM00821 - Chart 1 - Full ADM00821 - Chart 2 - Full ADM00821 - Chart 3 - Full