■ DESCRIPTION

The MB3832A is a pulse width modulation (PWM) DC/DC converter IC, incorporating a current detector amplifier and error amplifiers (2 circuits) to control the output voltage and current independently. It is suitable for downconversion.

With an on-chip reference voltage generator, the MB3832A is best suited for use in applications such as lithiumion battery (1-cell to 3-cell) chargers.

■ FEATURES

• High precision reference voltage source: 2.5 V ± 0.5 (+25°C)

: 2.5 V ± 1.0 (–10°C to +85°C)

• High frequency operating capability: 500 kHz Max.

• Wide operating supply voltage range: 3.6 V to 18 V

• On-chip current detector amplifier with wide in-phase input voltage range: 0 V to VCC

• On-chip standby function

• On-chip triangular waveform oscillator capable of operating in external synchronization

• On-chip, timer-latch short-circuit protection circuit

• Internal totem-pole output stage supporting P-channel MOS FETs and PNP transistors