The TPS40322 device is a dual-output synchronous buck controller on A10 hash board. It can be configured as a single-output, two-phase controller. 180° out-of-phase operation reduces input current ripple and extends input capacitor life. Its wide input range supports 3.3V, 5V, and 12V. An accurate voltage reference meets the precision voltage required by Asics and potentially reduces output capacitance requirements. A separate PGOOD signal provides flexibility for system monitoring and sequencing. Voltage mode control is implemented to reduce noise sensitivity and ensure low-duty cycle conversions.

Feature:

• Dual-phase or multiphase synchronous buck controller

• 180°Out-of-Phase reduces input ripple

• Input voltage range from 3 V to 20 V

• Output voltage range: 0.6 V to 5.6 V

• Adjustable frequency from 100 kHz to 1MHz

• Bi-directional synchronization with 0/180° or 90/2709 phase shift

• Voltage mode control with input feedforward.

• Accurate current sharing for multiphase operation

• Independent PowerGood output

• Individual enables and programmable soft-start with pre-biased startup

• ±0.5%, 600-mVReference

• Output UV/OV protection and input

• Undervoltage lockout

• Individual overcurrent limit setting

• Hiccup overcurrent protection

• Accurate inductor DCR or resistor current sensing

• Remote sensing for multiphase applications

• Internal N-Channel FET driver

• Integrated bootstrap switch

• Available in 5mmx5mm32-pin QFN package