General Description

The APW7095/A is a 6-channel, frequency-settable, voltage-mode, DC/DC control IC providing a complete power supply solution for high-performance portable digital cameras. The APW7095/A uses pulse-width-modulation (PWM) and synchronous rectification for high efficiency step-up, step-down, up-down, and inverting converters with free input and output settings in 2 or 4-cell AA, 1-cell lithium-ion (Li+), and dual-battery designs. The APW7095/A incorporates error amplifiers, output short-circuit detection, under-voltage lockout, soft-start, and output switch control into a chip. The AP7095/A improves performance, component count, and size compared to conventional multi-channel controllers.

特性 Features

· Supports for Synchronous Rectification (CH1, CH2, and CH5)

· Supports for Down or Up-Down Zeta Conversions (CH1 and APW7095 CH2)

· Supports for Up, Flyback, or Up-Down SEPIC Conversions (APW7095A CH2, CH3, APW7095 CH4, CH5, and CH6)

· Supports for Inverting Conversion (APW7095A CH4)

· Low Start-up Voltage : 1.4V (CH6)

· Power Supply Voltage Range

- CH1 to CH5 : 3.0V to 6.5V

- CH6 : 2.4V to 6.5V

· 1 Reference Voltage Accuracy

· Wide Operating Frequency 100kHz to 1MHz

· Soft-Start Function (CH1 to 6)

· Power Good (PGOOD) Indicator for CH1

· Low Shutdown Current

· Output Short-Circuit Detections

· Lead Free and Green Devices Available (RoHS Compliant)

Applications

· Digital Camera

· Camcorder

· Hand-Held Instrument