MIC45208-1 Module Datasheet

MIC45208-1 Datasheet, PDF, Equivalent


Part Number

MIC45208-1

Description

26V 10A DC-to-DC Power Module

Manufacture

Micrel Semiconductor

Total Page 30 Pages
Datasheet
Download MIC45208-1 Datasheet


MIC45208-1
MIC45208-1/-2
26V 10A DC-to-DC Power Module
General Description
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 4.5V to 26V, without requiring additional
cooling.
The MIC45208-1 uses Micrel’s HyperLight Load® (HLL)
while the MIC45208-2 uses Micrel’s Hyper Speed
Control™ (HSC) 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 0.8V to 5.5V with two external
resistors. Additional features include thermal shutdown
protection, input undervoltage lockout, adjustable current
limit, and short circuit protection. The MIC45208 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 10A 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 (PG) output
Hyper Speed Control (MIC45208-2) architecture
enables fast transient response
HyperLight Load (MIC45208-1) 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 10mm × 10mm × 4mm 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 (MIC45208-1)
100
5.0VOUT
90 3.3VOUT
80 2.5VOUT
1.8VOUT
70 1.5VOUT
1.2VOUT
60 1.0VOUT
50 0.8VOUT
40
30
20 fSW = 600kHz
10
0 2 4 6 8 10 12
OUTPUT CURRENT (A)
14
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
February 6, 2015
Revision 2.0

MIC45208-1
Micrel, Inc.
MIC45208
Ordering Information
Part Number
Switching
Frequency
Features
MIC45208-1YMP 200kHz to 600kHz Hyper Light Load
Junction
Temperature
Range
–40°C to +125°C
MIC45208-2YMP 200kHz to 600kHz Hyper Speed Control –40°C to +125°C
Note:
1. QFN is a lead-free package. Lead-free lead finish is matte tin.
Package(1)
52-pin
10mm × 10mm × 4mm QFN
52-pin
10mm × 10mm × 4mm QFN
Lead Finish
Pb-Free
Pb-Free
Pin Configuration
February 6, 2015
52-Pin 10mm × 10mm QFN (MP)
(Top View)
2
Revision 2.0


Features MIC45208-1/-2 26V 10A DC-to-DC Power Mod ule General Description Micrel’s MIC 45208 is a synchronous step-down regula tor module, featuring a unique adaptive ON-time control architecture. The modu le incorporates a DC-to-DC controller, power MOSFETs, bootstrap diode, bootstr ap capacitor, and an inductor in a sing le package; simplifying the design and layout process for the end user. This h ighly-integrated solution expedites sys tem design and improves product time-to -market. The internal MOSFETs and induc tor are optimized to achieve high effic iency at a low output voltage. The full y-optimized design can deliver up to 10 A current under a wide input voltage ra nge of 4.5V to 26V, without requiring a dditional cooling. The MIC45208-1 uses Micrel’s HyperLight Load® (HLL) whil e the MIC45208-2 uses Micrel’s Hyper Speed Control™ (HSC) architecture, wh ich enables ultra-fast load transient r esponse, allowing for a reduction of ou tput capacitance. The MIC45208 offers 1% output accuracy that c.
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