MP7745DF-LF-Z

MP1495 High Efficiency 3A, 16V, 500kHz Synchronous Step Down Converter R EC R NE O EF W M ER D ME E N TO SI D ED G M N P1 S FO 47 R 7 The Future of Analog IC Technology DESCRIPTION FEATURES The MP1495 is a high-frequency, synchronous, rectified, step-down, switch-mode converter with built-in power MOSFETs. It offers a very compact solution to achieve a 3A continuous output current with excellent load and line regulation over a wide input supply range. The MP1495 has synchronous mode operation for higher efficiency over the output current load range. • • • • • • • • • • • Current-mode operation provides fast transient response and eases loop stabilization. Full protection features include over-current protection and thermal shut down. The MP1495 requires a minimal number of readily-available standard external components, and is available in a space-saving 8-pin TSOT23 package. Wide 4.5V-to-16V Operating Input Range 80mΩ/30mΩ Low RDS(ON) Internal Power MOSFETs High-Efficiency Synchronous Mode Operation Fixed 500kHz Switching Frequency Synchronizes to a 200kHz to 2MHz External Clock AAM Power-Save Mode Internal Soft-Start OCP Protection and Hiccup Thermal Shutdown Output Adjustable from 0.8V Available in an 8-pin TSOT-23 package APPLICATIONS • • • • Notebook Systems and I/O Power Digital Set-Top Boxes Flat-Panel Television and Monitors Distributed Power Systems All MPS parts are lead-free and adhere to the RoHS directive. For MPS green status, please visit MPS website under Quality Assurance. “MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION 4.5V-16V N O T VIN C1 22 7 R3 90.9k R5 10k IN BST EN/SYNC SW VCC FB 1 AAM GND 4 5 VIN=12V, VOUT=3.3V, AAM=0.5V 100 C4 MP1495 6 EN/ SYNC C3 0.1 2 Efficiency vs. Load Current R4 10 3.3V/2A 3 L1 8 R9 33k 95 90 R1 40.2k R2 13k C2 47 85 VIN=5V 80 75 VIN=16V 70 0.01 MP1495 Rev. 1.05 4/13/2016 VIN=12V 0.1 1 LOAD CURRENT(A) www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2016 MPS. All Rights Reserved. 10 1 MP1495 – SYNCHRONOUS STEP-DOWN CONVERTER ORDERING INFORMATION Package TSOT-23-8 Top Marking ACS R EC R NE O EF W M ER D ME E N TO SI D ED G M N P1 S FO 47 R 7 Part Number* MP1495DJ For Tape & Reel, add suffix –Z (e.g. MP1495DJ–Z); For RoHS, compliant packaging, add suffix –LF (e.g. MP1495DJ–LF–Z). PACKAGE REFERENCE Thermal Resistance VIN ..................................................-0.3V to 17V VSW ...................................................................... -0.3V (-5V for