MP3426 6A, 35V Boost Converter with Programmable Switching Frequency and UVLO The Future of Analog IC Technology DESCRIPTION FEATURES The MP3426 is a current-mode step-up 6A, 90m, 45V Power MOSFET converter with a 6A, 90m internal switch that Uses Very Small Capacitors and Inductors provides a highly efficient regulator with a fast Wide Input Range: 3.2V to 22V response. The MP3426 features a Output Voltage as High as 35V programmable frequency of up to 2MHz that Programmable f : 300kHz to 2MHz sw allows for easy filtering and reduces noise. An Programmable UVLO, Soft-Start, UVLO external compensation pin gives the user Hysteresis flexibility in setting loop dynamics, and uses Micropower Shutdown <1 A small, low-ESR, ceramic output capacitors. Thermal Shutdown 160C Soft-start results in a small inrush current and Available in 14-Pin 3mm4mm QFN can be programmed with an external capacitor. Package The MP3426 operates from an input voltage as low as 3.2V and can generate up to a 35V APPLICATIONS output. TelecomPower Supplies The MP3426s features include under-voltage AudioMicrophone and Tuner Bias lockout, current limiting, and thermal overload Automotive protection. The MP3426 is available in a low- All MPS parts are lead-free, halogen free, and adhere to the RoHS profile 14-pin 3mm4mm QFN package with an directive. For MPS green status, please visit MPS website under Quality Assurance. exposed pad. MPS and The Future of Analog IC Technology are Registered Trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION Efficiency F=300kHz, V =24V OUT 100 95 90 85 V =5V IN 80 V =12V IN 75 70 65 60 0.01 0.1 1 10 I (A) OUT 24V, 1A Output MP3426 Rev.1.11 www.MonolithicPower.com 1 1/23/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2015 MPS. All Rights Reserved. MP3426- 6A, 35V BOOST CONVERTER WITH PROGRAMMABLE SWITCHING FREQUENCY AND UVLO ORDERING INFORMATION Part Number* Package Top Marking Free Air Temperature (T ) A MP3426DL QFN-14(3mmx4mm) 3426 -40C to 85C * For Tape & Reel, add suffix Z (e.g. MP3426DLZ) For RoHS compliant packaging, add suffix LF (e.g. MP3426DLLFZ) PACKAGE REFERENCE TOP VIEW 1 14 COMP FSET 2 13 EN FB 3 12 SS VIN EXPOSED PAD 4 11 AGND SW 5 10 PGND SW 6 9 PGND SW 8 VDD 7 PGND 3x4mm QFN 14 (1) (4) ABSOLUTE MAXIMUM RATINGS Thermal Resistance JA JC SW ................................................-0.5V to +45V QFN-14(3mmx4mm) ...............50 ...... 12... C/W IN ................................................-0.5V to +24V Notes: All Other Pins...............................-0.3V to +6.5V 1) Exceeding these ratings may damage the device. (2) Continuous Power Dissipation (T = +25C) 2) The maximum allowable power dissipation is a function of the A maximum junction temperature T(MAX), the junction-to- J QFN14 ....................................................... 2.5W ambient thermal resistance , and the ambient temperature JA Junction Temperature...............................150C T . The maximum allowable continuous power dissipation at A Lead Temperature ....................................260C any ambient temperature is calculated by P (MAX)=(T (MAX)- D J T )/ . Exceeding the maximum allowable power dissipation A JA Storage Temperature............... -65C to +150C will cause excessive die temperature, and the regulator will go (3) Recommended Operating Conditions into thermal shutdown. Internal thermal shutdown circuitry protects the device from permanent damage..........................3.2V to 22V Supply Voltage V IN 3) The device is not guaranteed to function outside of its Output Voltage V .........................3.2V to 35V operating conditions. OUT 4) Measured on JESD51-7, 4-layer PCB. Operating Junction Temp (T ). - 40C to +125C J MP3426 Rev.1.11 www.MonolithicPower.com 2 1/23/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2015 MPS. All Rights Reserved.