MPQ8633B-H 2.7-16V, 20A, 600kHz Synchronous Step-Down Converter QFN-21

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MPQ8633B-H 2.7-16V, 20A, 600kHz Synchronous Step-Down Converter QFN-21

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pMPS MPQ8633B-H — synchronous step-down converter, 2.7-16V input, 20A output, 600 kHz, QFN-21./p

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DC-DC converter MPS Buck Converter Power Management IC Step-Down Converter QFN-21

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MPQ8633B-H 2.7-16V, 20A, 600kHz Synchronous Step-Down Converter QFN-21

MPS MPQ8633B-H is a synchronous step-down converter that accepts 2.7 V to 16 V input, delivers 20 A, switches at 600 kHz, supplied in a QFN-21 package.

Key Specifications

Part Number	MPQ8633B-H
Input Voltage	2.7 V to 16 V
Output Current	20 A
Switching Frequency	600 kHz
Topology	Synchronous Step-Down Converter
Package	QFN-21
Ordering Codes	MPQ8633B-H

Features

Wide Input Voltage (VIN) Range o 2.7V to 16V VIN Range with External 3.3V VCC Bias o 4V to 16V VIN Range with Internal Bias or External 3.3V VCC Bias
Differential VOUT Remote Sense
Configurable Accurate Current Limit
20A Output Current (IOUT)
Low RDS(ON) Integrated Power MOSFETs
Proprietary Switching Loss Reduction Technique
Adaptive Constant-On-Time (COT) Control for Fast Transient Response
Stable with Zero ESR Output Capacitor
0.5% VREF for 0°C to 70°C TJ Range
1% VREF for -40°C to +125°C TJ Range

Applications

Telecommunication/Networking Systems
Servers, Cloud-Computing, and Storage
Base Stations
General-Purpose POL Systems
12V Distribution Power Systems
High-End Televisions

Design Notes

The step-down topology needs an inductor and output capacitor sized for the ripple at the switching frequency, not just the DC load.
Keep the input loop short — high di/dt at the switch node sets conducted EMI.
Power switches are integrated, so the thermal path is the PCB copper under the pad.
Package QFN-21 — check the land pattern in the datasheet before layout.