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 Technology
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