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MIC33153YHJ EV: 1.8V @ 1.2A, 2.7 ~ 5.5V in, Buck

Summary

This board enables the evaluation of the MIC33153, a fully integrated 1.2A, 4 MHz switching regulator featuring HyperLight Load™ mode, Power Good (PG) output indicator, and programmable soft start. The MIC33153 is highly efficient throughout the entire output current range, drawing just 22µA of quiescent current in operation.

The tiny 3.5x3.0x0.9 mm MLF package, in combination with the 4 MHz switching frequency, enables a compact sub 1mm height solution with only two external input and output capacitors.

The MIC33153 provides accurate output voltage regulation under the most demanding conditions and responds extremely quickly to a load transient with exceptionally small output voltage ripple.

Specifications

Manufacturer Microchip Technology
Category AC/DC and DC/DC Conversion
Sub-Category DC/DC SMPS - Single Output
Eval Board Part Number 576-4558-ND
Eval Board Supplier Microchip Technology
Eval Board Board not Stocked
Topology Step Down
Outputs and Type 1 Non-Isolated
Voltage Out: Factory Set 1.8 V
Current Out 1.2 A
Voltage In 2.7 ~ 5.5 V
Efficiency @ Conditions >84%, 3V in, 1.8V @ 1 ~ 700 mA
>80%, 3.6V in, 1.8V @ 1 mA ~ 1 A
>76%, 4.2V in, 1.8V @ 1 mA ~ 1.2 A
Voltage Out Range 0.62 ~ 3.6 V
Features Current Limit (Adj. or Fixed)
Light Load Mode
Power Good Output
PWM Interface
Shutdown, Enable, Standby
Soft Start
Thermal Protection
Switching Frequency 4 MHz
Standby Current [Typical] 10 nA
Quiescent Current [Typical] 22 µA
Component Count + Extras 8 + 6
Internal Switch Yes
Design Author Microchip
Application / Target Market Audio: MP3 Players
GPS
Memory Back-up
Portable Devices
RF / Wireless
RF: WLAN Access Points
Standby Current [Maximum] 5 µA
Quiescent Current [Maximum] 45 µA
Main I.C. Base Part MIC33153
Date Created By Author 2010-12
Date Added To Library 2015-06

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