MPQ82D00

MPQ82D00

16V, 20A, High-Efficiency, Synchronous Step-Down Converter with Integrated Telemetry via PMBus Interface

Description

The MPQ82D00 is a fully integrated, high-frequency, synchronous, step-down switch-mode converter with a PMBus interface. It offers a very compact solution to achieve up to 20A of output current (I_OUT) across a wide input supply range, with excellent load and line regulation. The MPQ82D00 operates at high efficiency across a wide I_OUT load range.

The MPQ82D00 adopts constant-on-time (COT) control to provide fast transient response and ease loop stabilization. The operating frequency can easily be set to 600kHz, 800kHz, 1000kHz, or 1200kHz via the MODE1 configuration. The frequency can also be set via the PMBus interface.

The MPQ82D00's output voltage (V_OUT) can be configured via the resistance at the MODE2 pin. With output direct sense, V_OUT can be monitored via the PMBus. The V_OUT level can also be controlled on the fly via a PMBus serial interface. The voltage transition slew rate and hiccup/latch-off protection are also selectable via the PMBus interface. An open-drain power good (PG) signal indicates whether the output is within its nominal voltage range.

Fully integrated protections include over-current protection (OCP), over-voltage protection (OVP), under-voltage protection (UVP), and over-temperature protection (OTP).

The MPQ82D00 requires a minimal number of readily available, standard external components, and is available in TQFN-19 (3mmx3mm) and TQFN-19 (3mmx3.5mm) packages.

Features & Benefits

PMBus 1.4 Compliant with 1.5V, 1.8V, and 3.3V Bus Voltage
Wide Input Voltage (V_IN) Range:
- 2.7V to 16V with External 3.3V VCC Bias
- 4V to 16V with Internal Bias or External 3.3V VCC Bias
20A Continuous Output Current (I_OUT)
BOM-Free Configuration
Low On Resistance (R_DS(ON)), Integrated Power MOSFETs
Proprietary Switching Loss Reduction Technique
Adaptive Constant-On-Time (COT) for Ultra-Fast Transient Response
Stable with Zero-ESR Output Capacitor
Configurable Output Voltage (V_OUT) from 0.3V to 5.5V
±0.5% Reference Voltage (V_REF) Across -40°C to +150°C Junction Temperature (T_J) Range
5% Accuracy V_OUT and I_OUT Readback via the PMBus
BlackBox to Record Fault Information
Enhanced Register Read/Write Protection for Improved Security
Configurable Current Limit
V_OUT True Remote Sense
Selectable Pulse-Skip Mode or Forced Continous Conduction Mode (FCCM)
Configurable Soft-Start Time
Supports Pre-Biased Start-Up
Selectable Switching Frequency (f_SW) from 600kHz, 800kHz, 1000kHz, or 1200kHz
Hiccup or Latch-Off Over-Current Protection (OCP), Under-Voltage Protection (UVP), Over-Temperature Protection (OTP), and Over-Voltage Protection (OVP)
Available in TQFN-19 (3mmx3mm) and TQFN-19 (3mmx3.5mm) Packages

Active Part Numbers:

MPQ82D00GQT-xxxx-Z MPQ82D00GQT-xxxx-P MPQ82D00GQT-0000-Z MPQ82D00GQT-0000-P MPQ82D00GRWT-xxxx-Z MPQ82D00GRWT-xxxx-P MPQ82D00GRWT-0000-Z MPQ82D00GRWT-0000-P

Meaning of P & Z