IR36021 Datasheet | International Rectifier

FEATURES - Dual output (2+1) Digital Controller with proprietary control algorithm - Two‐phase operation available on Output #1 for powering very high current ASICs and DSPs - I2C /PMBus interface for configuration & telemetry with pin programmable address - Operating ambient temperature: ‐400C to 850C - 3.3V bias operation - Independent loop switching frequencies from 200k Hz to 2MHz per phase - IR Efficiency Shaping with Dynamic Phase Control (DPC) - Active Diode Emulation modes for light load efficiency - IR Adaptive Transient Algorithm (ATA) minimizes output bulk capacitors and system cost - Independent OVP, UVP, OCP for each output - Thermal Protection (OTP) and VRHOT# flag - Multiple time programmable (MTP) memory for custom configuration - Flexible I2C bus security features - Pb‐Free, Ro HS, 32‐pin 5mm X 5mm QFN package BASIC APPLICATION DESCRIPTION The IR36021 is a dual‐loop digital multi‐phase buck controller designed for point of load applications. The IR36021 include Efficiency Shaping Technology to deliver exceptional efficiency at minimum cost across the entire load range. Dynamic Phase Control adds/drops active phases based upon load current and can be configured to enter 1‐phase operation and diode emulation mode automatically or by mand. IR’s unique Adaptive Transient Algorithm (ATA), based on proprietary non‐linear digital PWM algorithms, minimizes output bulk capacitors and Multiple Time Programmable (MTP) storage saves pins and enables a small package size. Device configuration and fault parameters are easily defined using the IR Intuitive Power Designer (IPD) GUI and stored in on‐chip MTP. The IR36021 provides extensive OVP, UVP, OCP and OTP fault protection and includes thermistor based temperature sensing with VRHOT signal. The IR36021 includes numerous features like register diagnostics for fast design cycles and platform differentiation, truly simplifying VRD design and enabling fastest time‐to‐market (TTM) with “set‐and‐forget”...