EVM3805-QB-01A

EVM3805-QB-01A 6V, 0.6A Synchronous Step-Down Switcher Evaluation Board DESCRIPTION FEATURES The EVM3805-QB-01A is used for Wide 2.5V to 6V Operating Input Range demonstrating the performance of MPSs Fixed and Adjustable output from 0.6V MPM3805 a low voltage high switching 3mm x 2.5mm x 0.9mm QFN Package frequency step-down switcher with built-in Total Solution Size 6mm x 3.8mm power MOSFETs and power inductor. Up to 0.6A Output Current MPM3805 provides up to 0.6A highly efficient 100% Duty Cycle in Dropout output with constant-on-time control for fast Ultra Low IQ: 17A loop response. EN and Power Good for Power Sequencing High power efficiency over a wide load range is Cycle-by-Cycle Over-Current Protection achieved by scaling down the switching Short Circuit Protection with Hiccup Mode frequency at light load to reduce the switching Adjustable Output Only Needs 4 External related loss by constant on time control. Short Components - 2 Ceramic Capacitors and circuit and thermal shutdown provides reliable, FB Divider Resistors fault-tolerant operation. Fixed Output only Needs Input and Output Capacitors MPM3805 is available in QFN 3.0x2.5x0.9mm package. APPLICATIONS ELECTRICAL SPECIFICATION Low Voltage I/O System Power LDO Replacement Parameter Symbol Value Units Power for Portable Products Input Voltage V 2.5 6 V IN Storage (SSD/HDD) Output Voltage V 1.2 V OUT Space-limited Applications Output Current I 0.6 A OUT 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. ADAM (Analog Digital Adaptive Modulation), AAM (.) areTrademarks of Monolithic Power Systems, Inc. EVM3805-QB-01A EVALUATION BOARD Board Number MPS IC Number EVM3805-QB-01A MPM3805GQB EVM3805-QB-01A Rev.1.2 www.MonolithicPower.com 1 10/18/2013 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2013 MPS. All Rights Reserved. EVM3805-QB-01A 6V, 0.6A SYNC STEP-DOWN SWITCHER EVALUATION BOARD SCHEMATIC NS NC EVM3805-QB-01A BILL OF MATERIALS Qty RefDes Value Description Package Manufacturer Manufacturer P/N 2 C1, C3 10F Ceramic Cap., 10V, X5R SM0805 TDK C2012X5R1A106K 0 C2, C4 NS 1 R1 40.2k Film Res., 1% SM0603 Any 1 R2 40.2k Film Res.,1% SM0603 Any 1 R3 100k Film Res., 5% SM0603 Yageo RC0603FR-07100KL 1 U1 COT Buck QFN3.0*2.5 MPS MPM3805GQB EVM3805-QB-01A Rev.1.2 www.MonolithicPower.com 2 10/18/2013 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2013 MPS. All Rights Reserved.