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MP2136EG Datasheet(PDF) 1 Page - Monolithic Power Systems |
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MP2136EG Datasheet(HTML) 1 Page - Monolithic Power Systems |
1 / 11 page MP2136 2.5V to 6V Input, 2MHz, 1A Synchronous Step-Down Converter MP2136 Rev. 0.9 www.MonolithicPower.com 1 8/23/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2010 MPS. All Rights Reserved. The Future of Analog IC Technology DESCRIPTION The MP2136 is a 2MHz constant frequency, current mode, PWM step-down converter with integrated main switch and synchronous rectifier that is ideal for powering portable equipment that runs from a single Li-Ion or Li- Polymer battery. The MP2136 can supply up to 1A load current from a 2.5V to 6V input voltage. The output voltage can be as low as 0.6V. Additional features include <1µA shutdown current, internal soft-start, cycle-by-cycle over current protection, short circuit protection, and thermal shutdown. The MP2136 is available in a 6-pin, QFN6 2mm×2mm package. FEATURES • 2MHz Constant Switching Frequency • 1A Available Load Current • 2.5V to 6V Input Voltage Range • Output Voltage as Low as 0.6V • Current Mode Control • Cycle-by-Cycle Over Current Protection • Short Circuit Protection • Thermal Shutdown • <1µA Shutdown Current • Internal Soft-Start • Space-Saving 6-pin, QFN6 2mm×2mm package APPLICATIONS • Cellular Phones • Microprocessors and DSP Core Supplies • PDAs and Smart Phones • MP3 and Portable Media Players • Digital Still and Video Cameras • Portable Instruments “MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION VIN IN EN NC GND FB SW VOUT EN OFF ON 2.5V - 6V 1.2V/1A C2 10uF R2 300k 1% R1 300k 1% L1 1.2uH U1 MP2136EG 3 2 1 5 6 4 C1 4.7uF Efficiency vs. Output Current L=2.2uH Vo=1.2V 0 10 20 30 40 50 60 70 80 90 100 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Vin=3.3V Vin=5V Vin=2.5V Vin=6V OUTPUT CURRENT (A) |
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