MP2155GQ-Z

MP2155 The Future of Analog IC Technology DESCRIPTION The MP2155 is a highly efficient, low quiescent current Buck-Boost converter, which operates from input voltage above, below and equal to the output voltage. The device provides power solution for products powered by a one-cell Lithium-Ion or multi-cell alkaline battery applications where the output voltage is within battery voltage range. The MP2155 uses a current mode, fixed frequency PWM control for optimal stability and transient response. The fixed 1MHz switching frequency and integrated low RDS(ON) N-channel and P-channel MOSFETs minimize the solution footprint while maintaining high efficiency. High Efficiency Single Inductor Buck-Boost Converter with 2.2A Switches FEATURES • • • • • • • • • • • • High Efficiency up to 95%. Load Disconnect During Shutdown Input Voltage Range: 2V to 5.5V Adjustable Output Voltage from 1.5V to 5V 3.3V/1A Load Capability from 2.7V-to-5.5V Vin 1MHz Switching Frequency Pulse Skipping Mode at Light Load Typical 80μA Quiescent Current Internal Loop Compensation for Fast Response Internal Soft Start OTP, Hiccup SCP Available in Small 3x3mm QFN10 Package To ensure the longest battery life MP2155 has an optional pulse skipping mode that reduces switching frequency under light load conditions. For other low noise applications where variable frequency power save mode may cause interference, the logic control input MODE pin forces fixed frequency PWM operation under all load conditions. APPLICATIONS The MP2155 operates with input voltage from 2V to 5.5V to provide adjustable output voltage (1.5V to 5V). With an input from 2.7V to 5.5V it can supply a maximum 1A current to load at 3.3V output voltage. The MP2155 is available in small QFN10-3x3mm package. All MPS parts are lead-free and adhere to the RoHS directive. For MPS green status, please visit MPS website under Quality Assurance. • • • • • • Battery-Powered Products Portable Instruments Tablet PCs POS Systems GSM/GPRS System Controls “MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION MP2155 Rev. 1.0 1/26/2014 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. 1 MP2155 –HIGH EFFICIENCY SINGLE INDUCTOR BUCK-BOOST CONVERTER WITH 2.2A SWITCHES ORDERING INFORMATION Part Number* MP2155GQ* Package QFN10 (3X3) Top Marking ADR * For Tape & Reel, add suffix –Z (e.g. MP2155GQ–Z); PACKAGE REFERENCE TOP VIEW VOUT 1 10 FB SW2 9 AGND 8 VCC 2 PGND 3 EP SW1 4 7 MODE/ SYNC VIN 5 6 EN ABSOLUTE MAXIMUM RATINGS (1) Thermal Resistance IN to GND .....................................–0.3V to 6.5V SW1/2 to GND ......–0.3V(-2V for