Design contains obsolete parts

MIC45208-2YMP EV: 5V @ 10A, 4.5 ~ 26V in, Buck

Summary

Micrel’s MIC45208 is a synchronous step-down regulator module, featuring a unique adaptive ON-time control architecture. The module incorporates a DC-to-DC controller, power MOSFETs, bootstrap diode, bootstrap capacitor, and an inductor in a single package; simplifying the design and layout process for the end user.

This highly integrated solution expedites system design and improves product time-to-market. The internal MOSFETs and inductor are optimized to achieve high efficiency at a low output voltage. The fully optimized design can deliver up to 10A current under a wide input voltage range of 4.5 to 26 V, without requiring additional cooling.

The MIC45208-1 uses Micrel’s Hyper Light Load®, MIC45208-2 uses Micrel’s Hyper Speed Control™ architecture which enables ultra-fast load transient response, allowing for a reduction of output capacitance. The MiC45208 offers 1% output accuracy that can be adjusted from 0.8 to 5.5 V with two external resistors.

Specifications

Manufacturer	Microchip Technology
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Single Output
Eval Board Part Number	576-4808-ND
Eval Board Supplier	Microchip Technology
Eval Board	Board not Stocked
Topology	Step Down
Outputs and Type	1 Non-Isolated
Voltage Out: Factory Set	5 V
Current Out	10 A
Voltage In	4.5 ~ 26 V
Efficiency @ Conditions	>90%, 5V in, 3.3V @ 0.5 ~ 10 A >90%, 12V in, 5V @ 2 ~ 10 A >80%, 24V in, 5V @ 1.8 ~ 10 A
Voltage Out Range	0.8 ~ 5 V
Features	Current Limit (Adj. or Fixed) Power Good Output Pre-Biased Startup Short Circuit Protection Shutdown, Enable, Standby Thermal Protection
Switching Frequency	600 kHz
Standby Current [Typical]	4 µA
Quiescent Current [Typical]	2.1 mA
Component Count + Extras	22 + 26
Internal Switch	Yes
Design Author	Microchip Technology
Application / Target Market	FPGA / DSP / Processors Medical Networking Point of Load (PoL) Power: Industrial Power Servers
Standby Current [Maximum]	10 µA
Quiescent Current [Maximum]	3 mA
Main I.C. Base Part	MIC45208-2
Date Created By Author	2014-10
Date Added To Library	2015-06