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IS6204A

Multi-phase ControllerAvailable

Dual-output 4-phase digital controller Supports PMBus/SVI2 protocol

IS6204A

Description

The IS6204A is a dual-output digital multiphase step-down controller specifically designed for CPU voltage regulation, fully compliant with the PMBus standard. It employs a proprietary TCOT™ control algorithm, enabling rapid transient response. Equipped with exclusive efficiency optimization technology, the IS6204A ensures outstanding efficiency across the entire load range. Its dynamic phase control feature allows for automatic or command-based addition or removal of phases according to load current. The IS6204A can be configured to operate with one or two outputs, supports 127 address values, and is suitable for PMBus and I2C bus interfaces. Device stored in on-chip non-volatile memory (NVM), reducing external components and minimizing package size. The IS6204A offers extensive fault protection including OVP, UVP, OCP, OTP, and CAT_FLT, and provides temperature sensing via thermistor or maximum temperature reporting when used with power stages.

Parameters

Switching Frequency
200kHz-2MHz
Operating Temperature Range (°C)
-40 ~ 85
Vout range (V)
0.3 ~ 3.8
Phase
N+M≤4
Interface
PMBus/SVI2
Rail (#)
2
Package
LGA 5x5
Control Mode
COT

Features

  • Dual-output, 4-phase (3+1) PWM controller
  • The switching frequency can be adjusted from 200kHz to 2MHz.
  • Proprietary efficiency adjustment technologies, including dynamic phase control and automatic power state switching.
  • Suitable for programmable single-phase or dual-phase operation under light loads and active diode emulation at light loads.
  • The transient performance of both circuits is improved, thereby minimizing output capacitance and system costs.
  • Fault Detection and Protection: OVP, UVP, OCP, OTP, and CAT_FLT
  • I2C/SMBus/PMBus system interface for reporting temperature, voltage, current, and power telemetry.
  • Non-volatile memory (NVM), easy to implement and possessing nearly unlimited non-volatile programming capability.
  • Compatible with 3.3V tri-state drivers
  • +3.3V power supply input voltage

Typical Application Circuit

IS6204A - Typical Application Circuit