MB39A110

FUJITSU SEMICONDUCTOR DATA SHEET DS04-27236-2E ASSP For Power Supply Applications (DC/DC Converter for DSC/Camcorder) 4-ch DC/DC Converter IC with Synchronous Rectification MB39A110 s DESCRIPTION The MB39A110 is a 4-channel DC/DC converter IC using pulse width modulation (PWM). This IC is ideal for up conversion, down conversion, and up/down conversion. This is built-in 4ch in TSSOP-38P package and operates at 2 MHz Max. Each channel can be controlled, and soft-start. This is an ideal power supply for high-performance portable devices such as digital still cameras. This product is covered by US Patent Number 6,147,477. s FEATURES Supports for down-conversion and up/down Zeta conversion (CH1 to CH3) Supports for up-conversion and up/down Sepic conversion (CH4) For synchronous rectification (CH1, CH2) Power supply voltage range : 2.5 V to 11 V Reference voltage : 2.0 V ± 1 % Error amplifier threshold voltage : 1.23 V ± 1% High-frequency operation capability: 2 MHz (Max) Standby current : 0 µA (Typ) Built-in soft-start circuit independent of loads Built-in totem-pole type output for MOS FET Short-circuit detection capability by external signal (−INS terminal) s PACKAGE 38-pin plastic TSSOP (FPT-38P-M03) www.DataSheet4U.com www.DataSheet4U.com MB39A110 s PIN ASSIGNMENT (TOP VIEW) CS2 −INE2 FB2 DTC2 VCC CTL CTL1 CTL2 CTL3 CTL4 VREF RT CT GND CSCP DTC3 FB3 −INE3 CS3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 38 37 36 35 34 33 32 31 30 29 28 ...