MIC45205-2 Module Datasheet

MIC45205-2 Datasheet, PDF, Equivalent


Part Number

MIC45205-2

Description

26V 6A DC-to-DC Power Module

Manufacture

Micrel Semiconductor

Total Page 30 Pages
Datasheet
Download MIC45205-2 Datasheet


MIC45205-2
MIC45205-1/-2
26V/6A DC-to-DC Power Module
General Description
Micrel’s MIC45205 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 6A current under a wide input
voltage range of 4.5V to 26V, without requiring additional
cooling.
The MIC45205-1 uses Micrel’s HyperLight Load® (HLL)
MIC45205-2 uses Micrel’s Hyper Speed Control™
architecture which enables ultra-fast load transient
response, allowing for a reduction of output capacitance.
The MIC45205 offers 1% output accuracy that can be
adjusted from 0.8V to 5.5V with two external resistors.
Additional features include thermal shutdown protection,
input undervoltage lockout, adjustable current limit, and
short circuit protection. The MIC45205 allows for safe
start-up into a pre-biased output.
Datasheet and other support documentation can be found
on Micrel’s web site at: www.micrel.com.
Features
No compensation required
Up to 6A output current
>93% peak efficiency
Output voltage: 0.8V to 5.5V with ±1% accuracy
Adjustable switching frequency from 200kHz to 600kHz
Enable input and open-drain power good output
Hyper Speed Control (MIC45205-2) architecture
enables fast transient response
HyperLight Load (MIC45205-1) improves light load
efficiency
Supports safe startup into pre-biased output
CISPR22, Class B compliant
–40°C to +125°C junction temperature range
Thermal-shutdown protection
Short-circuit protection with hiccup mode
Adjustable current limit
Available in 52-pin 8mm × 8mm × 3mm QFN package
Applications
High power density point-of-load conversion
Servers, routers, Networking, and base stations
FPGAs, DSP, and low-voltage ASIC power supplies
Industrial and medical equipment
Typical Application
Efficiency (VIN = 12V)
vs. Output Current (MIC45205-1)
100
5.0VOUT
90 3.3VOUT
80 2.5VOUT
70 1.8VOUT
1.5VOUT
60 1.2VOUT
50 1.0VOUT
0.8VOUT
40
30
20 fSW = 600kHz
10
0123456789
OUTPUT CURRENT (A)
Hyper Speed Control is a trademark of Micrel, Inc.
HyperLight Load is a registered trademark of Micrel, Inc.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
January 21, 2015
Revision 2.0

MIC45205-2
Micrel, Inc.
Ordering Information(1)
Part Number
Switching
Frequency
Features
MIC45205-1YMP 200kHz to 600kHz
Hyper Light Load
MIC45205-2YMP 200kHz to 600kHz Hyper Speed Control
Note:
1. Devices are ESD sensitive. Handling precautions are recommended.
Junction
Temperature
Range
–40°C to +125°C
–40°C to +125°C
Package
52-pin
8mm × 8mm × 3mm QFN
52-pin
8mm × 8mm × 3mm QFN
MIC45205
Lead
Finish
Pb-Free
Pb-Free
Pin Configuration
January 21, 2015
52-Pin 8mm × 8mm × 3mm QFN
(Top View)
2
Revision 2.0


Features MIC45205-1/-2 26V/6A DC-to-DC Power Modu le General Description Micrel’s MIC4 5205 is a synchronous step-down regulat or module, featuring a unique adaptive ON-time control architecture. The modul e incorporates a DC-to-DC controller, p ower MOSFETs, bootstrap diode, bootstra p capacitor, and an inductor in a singl e package; simplifying the design and l ayout process for the end user. This hi ghly-integrated solution expedites syst em design and improves product time-to- market. The internal MOSFETs and induct or are optimized to achieve high effici ency at a low output voltage. The fully -optimized design can deliver up to 6A current under a wide input voltage rang e of 4.5V to 26V, without requiring add itional cooling. The MIC45205-1 uses Mi crel’s HyperLight Load® (HLL) MIC452 05-2 uses Micrel’s Hyper Speed Contro l™ architecture which enables ultra-f ast load transient response, allowing f or a reduction of output capacitance. T he MIC45205 offers 1% output accuracy that can be adjusted from.
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