■ DESCRIPTION
The MB39A103 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.
Achievement of low voltage start-up (1.7 V or more) enables operation from low voltage.
4ch is built in TSSOP-30P/package. 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)
• Supports for up-conversion and up/down Sepic conversion (CH2 to CH4)
• Low voltage start-up (CH4): 1.7 V
• Power supply voltage range : 2.5 V to 11 V
• Reference voltage : 2.0 V ± 1 %
• Error amplifier threshold voltage : 1.24 V ± 1.5 %
• Built-in totem-pole type output for MOS FET
• Built-in soft-start circuit independent of loads
• High-frequency operation capability: 1.5 MHz (Max)
• External short-circuit detection capability by −INS terminal