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  4. 16V, 20A, Configurable Frequency Synchronous Step-Down Converter with Adjustable Current Limit and Voltage Tracking MPQ8633B-H (Monolithic Power Systems, Inc.)
16V, 20A, Configurable Frequency Synchronous Step-Down Converter with Adjustable Current Limit and Voltage Tracking MPQ8633B-H-MPQ8633B-H
16V, 20A, Configurable Frequency Synchronous Step-Down Converter with Adjustable Current Limit and Voltage Tracking MPQ8633B-H-Monolithic Power Systems, Inc.

16V, 20A, Configurable Frequency Synchronous Step-Down Converter with Adjustable Current Limit and Voltage Tracking MPQ8633B-H
Monolithic Power Systems, Inc.

About This Product

■Summary

The MPQ8633B-H is a functionally integrated, high frequency step-down converter. The MP2332 is a compact solution that provides up to 20A of output current (IOUT) over a wide input voltage (VIN) range with excellent load and line regulation. The MPQ8633B-H operates with high efficiency over the entire IOUT load range. Internally compensated constant-on-time (COT) control provides fast transient response and facilitates loop stabilization. The adjustable switching frequency (fSW) can be set to 600kHz, 800kHz, or 1,000kHz by setting the MODE pin. This keeps fSW constant regardless of the output voltage (VOUT) or VIN. The VOUT slope is controlled by an internal timer (1ms). To lengthen the internal timer, add a capacitor to the TRK/REF pin. An open-drain power-good (PGOOD) signal indicates whether VOUT is within its nominal voltage range. If the input cannot power the MPQ8633B-H, PGOOD is clamped to approximately 0.7V by an external pull-up voltage. Protection features include overcurrent protection (OCP), overvoltage protection (OVP), undervoltage protection (UVP), and thermal shutdown. The MPQ8633B-H requires a minimal number of off-the-shelf standard external components and is available in a QFN-21 (3mm x 4mm) package.

■Wide input voltage (VIN) range

・2.7V to 16V VIN range with external VCC bias ・4V to 16V VIN with internal bias or external 3.3V bias VCC

■Features and benefits

・Remote detection of differential output voltage (VOUT) ・Configurable and accurate current limit ・20A output current (IOUT) ・Built-in power MOSFET with low on-resistance (RDS (ON)) ・Unique switching loss reduction technology ・Adaptive constant on-time (COT) for fast transient response ・Stable with zero ESR output capacitor ・0.5% VREF in junction temperature (TJ) range from 0℃ to 70℃ ・1% VREF in junction temperature TJ range of -40℃ to +125℃

  • Product

    16V, 20A, Configurable Frequency Synchronous Step-Down Converter with Adjustable Current Limit and Voltage Tracking MPQ8633B-H

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1 Models of 16V, 20A, Configurable Frequency Synchronous Step-Down Converter with Adjustable Current Limit and Voltage Tracking MPQ8633B-H

Image Part Number Price (excluding tax) Iout (max) (A) Iq (typ) (mA) Max Duty Cycle (%) P.G. SS Vfb (V) Fsw (max) (kHz) Grade Package (mm) Input voltage (max) (V) Input voltage (min) (V)
16V, 20A, Configurable Frequency Synchronous Step-Down Converter with Adjustable Current Limit and Voltage Tracking MPQ8633B-H-Part Number-MPQ8633B-H

MPQ8633B-H

Available upon quote

20

0.65

90

Yes

External

0.6

1,000

Industrial

QFN-14 (3x4)

16

2.7

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About Company Handling This Product

Monolithic Power Systems, Inc.

Company Overview

Monolithic Power Systems (MPS), founded in 1997 and headquartered in San Jose, California, is a manufacturer o...

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