Integrated Power Stage
Smart Power Stage
uP9642B
Smart Power Stage (SPS) with Integrated Current and Temperature Monitors
Datasheets PDF
General Description
The uP9642B is a Smart Power Stage (SPS) solution with fully optimized, integrated driver and MOSFETs for highcurrent, high frequency, synchronous buck DC-DC converters. The SPS enables higher performance at lower output voltages required by cutting edge CPU, GPU and DDR memory designs.
The uP9642B also enables advanced high accuracy module temperature reporting and on-chip synchronous MOSFET current monitoring. The protection includes cycle-by-cycle over current protection, phase fault detection, preliminary over voltage protection, VCC/VDRV UVLO protection, and thermal shutdown.
The uP9642B is optimized for CPU core power delivery. This device combined with a multi-phase buck PWM controller forms a complete core voltage regulator for advanced micro- processors.
Pin Configuration & Typical Application Circuit
Feature
- Input Voltage (VIN) Range: 4.5V to 16V
- VCC and VDRV Supply Range: 4.5V to 5.5V
- Output Voltage Range: 0.4V to 2.0V
- Up to 60A of Current Handling Capability
- Switching Frequency Range: 200kHz to 700kHz
- 5mV / A On-Chip MOSFET Current Sensing
- 8mV / °C Temperature Analog Output
- On-Chip MOSFET Temperature Compensation
- VCC / VDRV Under Voltage Lockout (UVLO)
- Thermal Shutdown and Fault Flag
- MOSFET Phase Fault Detection and Flag
- Cycle-by-Cycle Over Current Protection
- Preliminary Over Voltage (OV) Protection and Flag
- Support 3.3V and 5V Tri-State PWM Input
- Deep-Sleep Mode for Power Saving
- VOS Output Voltage Sensing Input
- Lead Free and RoHS Compliant Package
Application
- High Frequency, Low Profile DC-DC Converter
- Voltage Regulator for CPUs, GPUs and DDR Memory Arrays