MB39A110 Datasheet | Fujitsu Semiconductor Limited

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) .. .. 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 27 26 25 24 23 22 21 20 CS1 - INE1 FB1 DTC1 VCCO-P OUT1-1 OUT1-2 OUT2-1 OUT2-2 GNDO1 GNDO2 OUT3 OUT4 VCCO-N - INS DTC4 FB4 - INE4 CS4 (FPT-38P-M03) MB39A110 s PIN DESCRIPTION Block Pin No. 35 36 37 CH1 38 33 32 4 3 2 CH2 1 31 30 16 17 CH3 18 19 27 23 22 CH4 21 20 26 13 OSC 12 RT  Symbol DTC1 FB1 - INE1 CS1 OUT1-1 OUT1-2 DTC2 FB2 - INE2 CS2 OUT2-1 OUT2-2 DTC3 FB3 - INE3 CS3 OUT3 DTC4 FB4 - INE4 CS4 OUT4 CT I/O I O I  O O I O I  O O I O I  O I O I  O  Descriptions Dead time control terminal Error amplifier output terminal Error amplifier inverted input terminal Soft-start setting capacitor connection terminal Pch drive output block ground terminal (External main side FET gate driving) Nch drive output block...