■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 4 ch 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.

■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)

• One type of package (TSSOP-38 pin : 1 type)

■APPLICATIONS

• Digital still camera(DSC)

• Digital video camera(DVC)

• Surveillance camera etc.