DC-DC Controller
Multiple Phase Buck Controller
uP9523R
2-Phase PWM Controller for IMVP9 Voltage Regulator
Datasheets PDF
General Description
The uP9523R is an Intel® IMVP9 compatible 2-phase PWM voltage regulator controller for mobile/desktop platform application. This device has two embedded 5V MOSFET drivers with integrated bootstrap diodes. The controller supports 2/1-phase configuration to provide flexibility in platform power design. This device combines true differential output voltage sense, inductor DCR current sense, input voltage sense and adaptive voltage positioning to provide accurately regulated power for mobile/desktop CPU. It adopts uPI’s proprietary RCOT+TM (Robust Constant On-Time) control topology to have fast transient response and smooth mode transition.
The uP9523R supports selectable voltage regulator parameters, such as Vboot voltage, switching frequency and dynamic VID transition slew rate. It also provides complete fault protection functions, including over voltage protection, under voltage protection, over current protection, over current limit, over temperature protection and under voltage lockout. The uP9523R is available in WQFN4x4 – 32L package.
Pin Configuration & Typical Application Circuit
2-Phase Application
Feature
- Intel® IMVP9 Compatible
- Support Mobile CPU
- Support Desktop CPU
- RCOT+TM Control Topology
- Easy Setting
- Smooth Mode Transition
- Fast Transient Response
- 2-Embedded 5V MOSFET Drivers
- With Integrated Bootstrap Diodes
- Support Operation Phase Disable Function
- 2/1-Phase Configuration
- Selectable Voltage Regulator Parameter
- Vboot Voltage
- Switching Frequency
- Dynamic VID Transtion Slew Rate
- System Input Power Monitor Psys
- Enable Control and VR_RDY Indicator
- Thermal Sense Input and VRHOT# Indicator
- Differential Output Voltage Remote Sense
- Inductor DCR Current Sense
- OVP/UVP/OCP/OCL/UVLO/Thermal Shutdown
- RoHS Compliant and Halogen Free
Application
- Mobile CPU Power Supplies
- Desktop PC CPU Power Supplies