MIC45205 26V/6A DC/DC Power Module Features General Description No Compensation Required MIC45205 is a synchronous step-down regulator module, featuring a unique adaptive ON-time control Up to 6A Output Current architecture. The module incorporates a DC/DC >93% Peak Efficiency controller, power MOSFETs, bootstrap diode, bootstrap Output Voltage: 0.8V to 0.85 x V with 1% IN capacitor, and an inductor in a single package Accuracy simplifying the design and layout process for the end Adjustable Switching Frequency from 200 kHz to user. 600 kHz This highly integrated solution expedites system Enable Input and Open-Drain Power Good Output design and improves product time-to-market. The HyperLight Load (MIC45205-1) Improves Light internal MOSFETs and inductor are optimized to Load Efficiency achieve high efficiency at a low output voltage. The fully Hyper Speed Control (MIC45205-2) Architecture optimized design can deliver up to 6A current under a Enables Fast Transient Response wide input voltage range of 4.5V to 26V, without Supports Safe Startup into Pre-Biased Output requiring additional cooling. 40C to +125C Junction Temperature Range The MIC45205-1 uses Microchips HyperLight Load (HLL) and the MIC45205-2 uses Microchips Hyper Thermal Shutdown Protection Speed Control architecture that enables ultra-fast Short-Circuit Protection with Hiccup Mode load transient response, allowing for a reduction of Adjustable Current-Limit output capacitance. The MIC45205 offers 1% output Available in 52-pin 8 mm 8 mm 3 mm QFN accuracy that can be adjusted from 0.8V to 0.85 x V IN Package with two external resistors. Additional features include thermal shutdown protection, input undervoltage Applications lockout, adjustable current-limit, and short-circuit High Power Density Point-of-Load Conversion protection. The MIC45205 allows for safe start-up into Servers, Routers, Networking, and Base Stations a pre-biased output. FPGAs, DSP, and Low-Voltage ASIC Power Supplies Industrial and Medical Equipment Typical Application Diagram PVDD ANODE 5VDD BST V RIA V PG IN OUT 12V UP to 6A PVIN VOUT VIN MIC45205 R C FB1 C OUT FF C FB FREQ IN RIB R FB2 ON SW EN R LIM OFF ILIM GND PGND 2017 Microchip Technology Inc. DS20005798A-page 1MIC45205 Functional Block Diagram BST VIN VIN BST ANODE VDD 5VDD PVIN PVDD RIB PVDD PWM R INJ CONTROLLER RIA DH EN EN C INJ SW FREQ FREQ SW VOUT DL PG PG FB FB AGND PGND PGND GND ILIM ILIM DS20005798A-page 2 2017 Microchip Technology Inc.