MP3212 1.3A, 1MHz Step-up Regulator with Integrated Input Disconnect Switch DESCRIPTION FEATURES The MP3212 is a high efficiency, fixed frequency, Up to 88% Efficiency current-mode boost converter with input 2.3V to 5.5V Input Voltage disconnect, inrush current limiting, internal soft- Up to 28V Output start and compensation. 1 MHz Fixed Switching Frequency The 1MHz switching frequency allows for smaller Integrated Power MOSFET external components producing a compact Integrated Input Disconnect Switch solution for a wide range of load currents. The Zero Current Shutdown Mode input disconnect feature provides complete Internal Soft-Start isolation from output to input when the device is in Internal Compensation either shutdown mode or fault condition. The Automatic Pulse Frequency Modulation internal compensation minimizes the external Mode at Light Load component count and soft-start limits the Inrush Current Limiting current during startup. The MP3212 1.3A Typical Switch Current Limit automatically transitions into pulse-frequency Under voltage lockout modulation mode to achieve better efficiency at Over Voltage Protection light load. The input voltage range of 2.3V to Thermal Shutdown 5.5V can generate 28V at up to 100mA. 10-Pin QFN (3x3mm) Package The MP3212 includes under-voltage lockout, APPLICATIONS current limit, over voltage protection and thermal shutdown. In addition to cycle by cycle Low Noise Power Supply current limit at power switch, the average Wimax RF Amp Power Supply current is also monitored at disconnect switch GPRS/GSM RF Amp Power Supply to prevent damage in the event of output All MPS parts are lead-free and adhere to the RoHS directive. For MPS green overload. status, please visit MPS website under Quality Assurance. MPS and The Future of Analog IC Technology are Registered Trademarks of Monolithic The MP3212 is offered in a compact 10-pin Power Systems, Inc. QFN (3x3mm) package. TYPICAL APPLICATION MP3212 Rev. 1.0 www.MonolithicPower.com 1 7/17/2013 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. 2013 MPS. All Rights Reserved. MP32121.3A, 1MHz, STEP-UP REGULATOR WITH INTEGRATED INPUT DISCONNECT SWITHCH ORDERING INFORMATION Part Number* Package Top Marking Temperature QFN10 (3mm x 3mm) MP3212DQ 7F 40C to +85 C * For Tape & Reel, add suffix Z (e.g. MP3212DQZ). For RoHS Compliant Packaging, add suffix LF (e.g. MP3212DQLFZ) PACKAGE REFERENCE (1) (3) ABSOLUTE MAXIMUM RATINGS Recommended Operating Conditions VDD to GND ................................. 0.3V to +6V Supply Voltage V .......................... 2.3V to 5.5V IN VOUT to GND ............................. 0.3V to +35V Output Voltage V ............................. 28Vmax OUT VSW to GND .............................. 0.5V to +36V Operating Temperature ............ 40C to +85C All Other Pins ................................ 0.3V to +6V (4) Thermal Resistance (2) JA JC Continuous Power Dissipation (T = +25C) A QFN10 (33mm) .................... 50 ...... 12 ... C/W ....2.5W Junction Temperature .............................. 150C Notes: Lead Temperature ................................... 260C 1) Exceeding these ratings may damage the device. Storage Temperature .............. 65C to +150C 2) The maximum allowable power dissipation is a function of the maximum junction temperature T (MAX), the junction-to- J ambient thermal resistance , and the ambient temperature JA T . The maximum allowable continuous power dissipation at A any ambient temperature is calculated by P (MAX) = (T D J (MAX)-T )/ . Exceeding the maximum allowable power A JA dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown. Internal thermal shutdown circuitry protects the device from permanent damage. 3) The device is not guaranteed to function outside of its operating conditions. 4) Measured on JESD51-7, 4-layer PCB. MP3212 Rev. 1.0 www.MonolithicPower.com 2 7/17/2013 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. 2013 MPS. All Rights Reserved.