MIC45208-1YMP-TR Microchip

MIC45208-1/-2 26V 10A DC-to-DC Power Module General Description Features Micrels MIC45208 is a synchronous step-down regulator No compensation required module, featuring a unique adaptive ON-time control Up to 10A output current architecture. The module incorporates a DC-to-DC >93% peak efficiency controller, power MOSFETs, bootstrap diode, bootstrap Output voltage: 0.8V to 5.5V with 1% accuracy capacitor, and an inductor in a single package; simplifying the design and layout process for the end user. Adjustable switching frequency from 200kHz to 600kHz Enable input and open-drain power good (PG) output This highly-integrated solution expedites system design and improves product time-to-market. The internal Hyper Speed Control (MIC45208-2) architecture enables fast transient response MOSFETs and inductor are optimized to achieve high efficiency at a low output voltage. The fully-optimized HyperLight Load (MIC45208-1) improves light load design can deliver up to 10A current under a wide input efficiency voltage range of 4.5V to 26V, without requiring additional Supports safe startup into pre-biased output cooling. CISPR22, Class B compliant (HLL) The MIC45208-1 uses Micrels HyperLight Load 40C to +125C junction temperature range while the MIC45208-2 uses Micrels Hyper Speed Thermal-shutdown protection Control (HSC) architecture, which enables ultra-fast load Short-circuit protection with hiccup mode transient response, allowing for a reduction of output capacitance. The MIC45208 offers 1% output accuracy Adjustable current limit that can be adjusted from 0.8V to 5.5V with two external Available in 52-pin 10mm 10mm 4mm QFN package resistors. Additional features include thermal shutdown protection, input undervoltage lockout, adjustable current Applications limit, and short circuit protection. The MIC45208 allows for High power density point-of-load conversion safe start-up into a pre-biased output. Servers, routers, networking, and base stations Datasheet and other support documentation can be found FPGAs, DSP, and low-voltage ASIC power supplies on Micrels web site at: www.micrel.com. Industrial and medical equipment Typical Application Efficiency (V = 12V) IN vs. Output Current (MIC45208-1) 100 5.0V OUT 90 3.3V OUT 2.5V OUT 80 1.8V OUT 1.5V 70 OUT 1.2V OUT 60 1.0V OUT 0.8V OUT 50 40 30 20 f = 600kHz SW 10 0 2 4 6 8 10 12 14 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 Micrel, Inc. MIC45208 Ordering Information Junction Switching (1) Part Number Features Temperature Package Lead Finish Frequency Range 52-pin MIC45208-1YMP 200kHz to 600kHz Hyper Light Load 40C to +125C Pb-Free 10mm 10mm 4mm QFN 52-pin MIC45208-2YMP 200kHz to 600kHz Hyper Speed Control 40C to +125C Pb-Free 10mm 10mm 4mm QFN Note: 1. QFN is a lead-free package. Lead-free lead finish is matte tin. Pin Configuration 52-Pin 10mm 10mm QFN (MP) (Top View) February 6, 2015 2 Revision 2.0