Multiphase PWM Regulator - Renesas
Description
DATASHEET
ISL62771
Multiphase PWM Regulator for AMD Fusion™ Mobile CPUs Using SVI 2.
0
FN8321 Rev 4.
00 November 18, 2015
The ISL62771 is fully compliant with AMD Fusion SVI 2.
0 and provides a complete solution for microprocessor and graphics processor core power.
The ISL62771 controller supports two Voltage Regulators (VRs) with three integrated gate drivers.
The Core VR supports 2-, or 1-phase configurations while the Northbridge VR supports 1-phase operation.
The two VRs share a serial control bus to communicate with the AMD CPU and achieve lower cost and smaller board area compared with two-chip solutions.
The PWM modulator is based on Intersil’s Robust Ripple Regulator R3™ Technology.
Compared to traditional modulators, the R3 modulator can automatically change switching frequency for faster transient settling time during load transients and improved light-load efficiency.
The ISL62771 has several other key features.
Both outputs support DCR current sensing with single NTC ...
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