MIC45208-2YMP-TR

MIC45208-1/-2 26V, 10A DC-to-DC Power Module Features General Description No Compensation Required The MIC45208-1/-2 is a synchronous, step-down regula- tor 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 0.85*V with IN capacitor and an inductor in a single package, simplifying 1% Accuracy the design and layout process for the end user. Adjustable Switching Frequency from 200 kHz to 600 kHz This highly integrated solution expedites system design and improves product time-to-market. The Enable Input and Open-Drain Power Good (PG) internal MOSFETs and inductor are optimized to Output achieve high efficiency at a low-output voltage. The Hyper Speed Control (MIC45208-2) Architecture fully optimized design can deliver up to 10A current enables Fast Transient Response under a wide input voltage range of 4.5V to 26V, HyperLight Load (MIC45208-1) improves Light without requiring additional cooling. Load Efficiency Supports Safe Start-up into Pre-Biased Output The MIC45208-1 uses the HyperLight Load (HLL) while the MIC45208-2 uses Hyper Speed Control (HSC) archi- 40 C to +125C Junction Temperature Range tecture, which enables ultra-fast load transient Thermal Shutdown Protection response, allowing for a reduction of output capacitance. Short-Circuit Protection with Hiccup mode The MIC45208 offers 1% output accuracy that can be Adjustable Current Limit adjusted from 0.8V to 0.85*V with two external IN Available in 52-Pin 10 mm x 10 mm x 4 mm QFN resistors. Additional features include thermal shutdown Package protection, input undervoltage lockout, adjustable current limit and short-circuit protection. The MIC45208 Applications allows for safe start-up into a pre-biased output. High-Power Density Point-of-Load (POL) Data sheet and other support documentation can be Conversion found on the Microchip web site at: www.microchip.com. Servers, Routers, Networking and Base Stations FPGAs, DSP and Low-Voltage ASIC Power Supplies Industrial and Medical Equipment Typical Application Schematic PV ANODE DD 5V BST DD V RIA V PG IN OUT 12V 1.5V/10A PV V IN OUT V MIC45208 IN R FB1 C C OUT FF C FREQ FB IN RIB R FB2 ON SW EN R LIM OFF I LIM GND PGND 2017 Microchip Technology Inc. DS20005603A-page 1MIC45208-1/-2 Package Types MIC45208-1/-2 52-Pin 10 mm x 10 mm QFN (MP) (Top View) 41 ANODE 1 5V DD 40 ANODE 5V 2 DD 39 RIB PV 3 DD RIA 38 PV 4 PGND DD RIA 37 5 PGND KEEPOUT 36 PGND 6 SW 35 PGND 7 SW 34 KEEPOUT 8 SW SW 33 SW 9 SW 32 SW 10 SW 31 11 SW 30 KEEPOUT 12 KEEPOUT V 29 PV ePAD OUT 13 PV IN IN V ePAD OUT V 28 OUT PV 14 IN V 27 PV 15 OUT IN DS20005603A-page 2 2017 Microchip Technology Inc. 52 GND PV 16 IN 51 I 17 PV LIM IN 50 FREQ PV 18 IN 49 V PV 19 IN IN 48 EN 20 KEEPOUT 47 PG V 21 OUT 46 FB 22 V OUT 45 GND 23 V OUT 44 BST 24 V OUT 43 BST 25 V OUT 42 BST 26 V OUT