MP29540

MP29540

Digital, Multi-Phase Controller

Description

The MP29540 is a digital controller that supports high-current, multi-phase voltage regulators (VRs). The MP29540 works together with external power stages to make a hybrid buck or standard multi-phase VR solutions. The MP29540 can sense the current via the inductor's DC resistance (DCR).

The MP29540 can be configured with up to 8-phase operation to support 4 blocks of hybrid buck topology with an external AND gate, or up to 6-phase operation to support 3 blocks of hybrid buck topology with an internal AND gate (PWMx_xN pins).

The MP29540 provides on-chip non-volatile memory (NVM) to store and restore device configurations. Device configurations and fault parameters can be easily configured or monitored via the PMBus/I²C interface.

The MP29540 is based on a unique, digital, multi-phase, nonlinear control to provide a fast transient response to the load transient with minimal output capacitors. With only one power loop control method for both steady state and load transient response, the power loop compensation is very easy to configure.

The MP29540 is available in a TLGA-40 (5mmx5mm) package.

Features & Benefits

Up to 8-Phase, Digital Controller
PMBus/I²C Compliant (800kHz Bus Speed)
Pin Configurable for PMBus Address
Built-In Non-Volatile Memory (NVM) to Store Configurations
120kHz to 1.5MHz Switching Frequency (f_SW)
Up to 3 Parts Work with Internal AND Gate
Up to 4 Parts Work with External AND Gate
Automatic Slope Compensation
Selectable Open-Loop or Closed-Loop Control
VFLYCAP Under-Voltage (UV) Monitor
Supports Multi-Configuration for 6 Different Applications
Active Current Sharing Between Modules
Flexible Output Current (I_OUT) Sense via Inductor's DC Resistance (DCR)
Phase-to-Phase Active Current Balancing with Configurable Offsets for Thermal Balance
Input Voltage (V_IN), Output Voltage (V_OUT), Current, and Power Monitoring
V_IN Under-Voltage Lockout (UVLO), V_OUT Over-Voltage Protection (OVP)/Under-Voltage Protection (UVP), Fast Over-Current Protection (OCP), Slow OCP, and Over-Temperature Protection (OTP)
Auto-Record Voltage Regulator (VR) Fault Types to the NVM
Digital Load-Line Regulation
Overclocking Mode by Adding Offset to V_OUT
Password Lock to Access Registers
Available in a TLGA-40 (5mmx5mm) Package