All Categories

History

  1. Metoree
  2. Converters & Transducers
  3. DC To DC Converters
  4. 16V, 20A, Configurable Frequency Synchronous Step-Down Converter with Adjustable Current Limit and Voltage Tracking MPQ8643 (Monolithic Power Systems, Inc.)
16V, 20A, Configurable Frequency Synchronous Step-Down Converter with Adjustable Current Limit and Voltage Tracking MPQ8643-MPQ8643
16V, 20A, Configurable Frequency Synchronous Step-Down Converter with Adjustable Current Limit and Voltage Tracking MPQ8643-Monolithic Power Systems, Inc.

16V, 20A, Configurable Frequency Synchronous Step-Down Converter with Adjustable Current Limit and Voltage Tracking MPQ8643
Monolithic Power Systems, Inc.

About This Product

■Summary

The MPQ8643 is an integrated, high frequency step-down converter. The MP2332 is a highly compact solution with excellent load and line regulation and up to 20A of output current (IOUT) over a wide input voltage (VIN) range. The MPQ8643 operates with high efficiency over a wide IOUT load range. Internally compensated constant-on-time (COT) control provides fast transient response and facilitates loop stabilization. The selectable switching frequency (fSW) can be set to 600kHz, 800kHz, or 1,000kHz by setting the MODE pin. This allows constant fSW to be maintained regardless of VIN and output voltage (VOUT). During start-up, an internal soft-start time (tSS) (1ms) ramps up VOUT in a controlled manner. tSS can be increased by adding a capacitor to the TRK/REF pin. An open-drain power-good (PG) signal indicates whether VOUT is within its nominal voltage range. If the input cannot power the MPQ8643, the PG voltage (VPG) is clamped to approximately 0.7V by an external pull-up voltage. Extensive protection features include overcurrent protection (OCP), overvoltage protection (OVP), undervoltage protection (UVP), and overtemperature protection (OTP). The MPQ8643 requires minimal standard external components and is available in a QFN-21 (3mm x 4mm) package.

■Wide input voltage (VIN) range

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

■Reference voltage (VREF) accuracy

・Accuracy of 0.5%VREF from 0℃ to 70℃ ・1%VREF from -40℃ to +125℃

■Features and benefits

・Differential output remote detection ・Accurate configurable current limit (ILIMIT) ・20A output current (IOUT) ・Built-in low RDS (ON) power MOSFET ・Unique switching loss reduction technology ・Adaptive constant on-time (COT) for ultra-fast transient response ・Stable with zero ESR output capacitor -Selectable pulse-skipping mode (PSM) or forced continuous conduction mode (FCCM)

  • Product

    16V, 20A, Configurable Frequency Synchronous Step-Down Converter with Adjustable Current Limit and Voltage Tracking MPQ8643

Share this product


30+ people viewing

Last viewed: 19 hours ago

Free
Get started with our free quotation service - no cost, no obligation.

No Phone Required
We respect your privacy. You can receive quotes without sharing your phone number.

1 Models of 16V, 20A, Configurable Frequency Synchronous Step-Down Converter with Adjustable Current Limit and Voltage Tracking MPQ8643

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 MPQ8643-Part Number-MPQ8643

MPQ8643

Available upon quote

20

0.65

90

Yes

External

0.6

1,000

Industrial

QFN-21 (3x4)

16

4

Customers who viewed this product also viewed

Reviews shown here are reviews of companies.

P-DUKE DC/DC converter-Gemco Co., Ltd.

P-DUKE DC/DC converter

Gemco Co., Ltd.

5.0

600+ people viewing

Last viewed: 23 hours ago

Response time: 3.32 hours

DC To DC Converters

8 models listed

P-DUKE medical power supply-Gemco Co., Ltd.

P-DUKE medical power supply

Gemco Co., Ltd.

5.0

440+ people viewing

Response time: 3.32 hours

DC To DC Converters

10 models listed

Case type DC-DC converter PSD-50W series-Power Science Tokai Co., Ltd.

Case type DC-DC converter PSD-50W series

Power Science Tokai Co., Ltd.

600+ people viewing

Last viewed: 3 hours ago

DC To DC Converters

8 models listed

Power electronics E-mobility DC/DC converter-ASTI Co., Ltd.

Power electronics E-mobility DC/DC converter

ASTI Co., Ltd.

310+ people viewing

Response time: 20.24 hours

DC To DC Converters

2 models listed

P-DUKE Railway power supply-Gemco Co., Ltd.

P-DUKE Railway power supply

Gemco Co., Ltd.

5.0

340+ people viewing

Last viewed: 22 hours ago

Response time: 3.32 hours

DC To DC Converters

3 models listed

RHV2 series-Arktake Co., Ltd.

RHV2 series

Arktake Co., Ltd.

510+ people viewing

Last viewed: 1 hour ago

Response time: 2.63 hours

DC To DC Converters

10 models listed

Case type DC-DC converter (multi-output) PSD-60W series-Power Science Tokai Co., Ltd.

Case type DC-DC converter (multi-output) PSD-60W series

Power Science Tokai Co., Ltd.

430+ people viewing

Last viewed: 23 hours ago

DC To DC Converters

4 models listed

REM20-W series-Arktake Co., Ltd.

REM20-W series

Arktake Co., Ltd.

460+ people viewing

Last viewed: 17 hours ago

Response time: 2.63 hours

DC To DC Converters

10 models listed

Case type DC-DC converter PSD series PSD50N-Power Science Tokai Co., Ltd.

Case type DC-DC converter PSD series PSD50N

Power Science Tokai Co., Ltd.

600+ people viewing

Last viewed: 1 hour ago

DC To DC Converters

5 models listed

R-78E-0.5 series-Arktake Co., Ltd.

R-78E-0.5 series

Arktake Co., Ltd.

530+ people viewing

Last viewed: 1 hour ago

Response time: 2.63 hours

DC To DC Converters

10 models listed

Case type DC-DC converter PSD series PSD100-Power Science Tokai Co., Ltd.

Case type DC-DC converter PSD series PSD100

Power Science Tokai Co., Ltd.

480+ people viewing

Last viewed: 3 hours ago

DC To DC Converters

4 models listed

Semiconductor products DC/DC converter IC single output/surface mount SI-8033W-Sanshin Electric Co., Ltd.

Semiconductor products DC/DC converter IC single output/surface mount SI-8033W

Sanshin Electric Co., Ltd.

270+ people viewing

Last viewed: 11 hours ago

Response time: 34.74 hours

DC To DC Converters

3 models listed

See More DC To DC Converters Products

Other products of Monolithic Power Systems, Inc.

Reviews shown here are reviews of companies.

1A, synchronous step-down converter with forced CCM MP1601A-Monolithic Power Systems, Inc.

1A, synchronous step-down converter with forced CCM MP1601A

Monolithic Power Systems, Inc.

40+ people viewing

Response time: 15.60 hours

DC To DC Converters
Buck-Boost 36V, Synchronous Buck-Boost Controller MP2984 with Adjustable Current Monitoring via IPWM, Serial Interface, and OCP-Monolithic Power Systems, Inc.

Buck-Boost 36V, Synchronous Buck-Boost Controller MP2984 with Adjustable Current Monitoring via IPWM, Serial Interface, and OCP

Monolithic Power Systems, Inc.

50+ people viewing

Response time: 15.60 hours

DC To DC Converters
Triple-loop, digital, multiphase controller MP2926 with PMBus interface-Monolithic Power Systems, Inc.

Triple-loop, digital, multiphase controller MP2926 with PMBus interface

Monolithic Power Systems, Inc.

40+ people viewing

Response time: 15.60 hours

DC To DC Converters
16V, Quad 25A, Scalable DC/DC Power Module with PMBus MPM82504-Monolithic Power Systems, Inc.

16V, Quad 25A, Scalable DC/DC Power Module with PMBus MPM82504

Monolithic Power Systems, Inc.

50+ people viewing

Last viewed: 40 minutes ago

Response time: 15.60 hours

DC To DC Converters

2 models listed

Intelli-PhaseTM solution MP86920 with integrated HS-FET, LS-FET and driver in LGA package-Monolithic Power Systems, Inc.

Intelli-PhaseTM solution MP86920 with integrated HS-FET, LS-FET and driver in LGA package

Monolithic Power Systems, Inc.

50+ people viewing

Response time: 15.60 hours

DC To DC Converters

2 models listed

Adjustable Current Limit, 16V, 6A, High Efficiency, Synchronous Step-Down Converter MPQ8626-Monolithic Power Systems, Inc.

Adjustable Current Limit, 16V, 6A, High Efficiency, Synchronous Step-Down Converter MPQ8626

Monolithic Power Systems, Inc.

40+ people viewing

Response time: 15.60 hours

DC To DC Converters
2.7-22V, 0.7-5A, current limit switch with overvoltage clamp and reverse blocking MP5016-L-Monolithic Power Systems, Inc.

2.7-22V, 0.7-5A, current limit switch with overvoltage clamp and reverse blocking MP5016-L

Monolithic Power Systems, Inc.

50+ people viewing

Response time: 15.60 hours

Power Supply Modules
PoE PD Interface MP8009 with fully integrated 802.3af/at compliant high efficiency flyback/forward controller-Monolithic Power Systems, Inc.

PoE PD Interface MP8009 with fully integrated 802.3af/at compliant high efficiency flyback/forward controller

Monolithic Power Systems, Inc.

50+ people viewing

Response time: 15.60 hours

DC To DC Converters

2 models listed

500mA LED camera flash MP3214-Monolithic Power Systems, Inc.

500mA LED camera flash MP3214

Monolithic Power Systems, Inc.

50+ people viewing

Response time: 15.60 hours

LED Drivers

3 models listed

Asynchronous rectifier for TFT bias, low power consumption, triple output, boost type + charge pump MP1531-Monolithic Power Systems, Inc.

Asynchronous rectifier for TFT bias, low power consumption, triple output, boost type + charge pump MP1531

Monolithic Power Systems, Inc.

50+ people viewing

Last viewed: 7 hours ago

Response time: 15.60 hours

DC To DC Converters
4-channel, 320mA/Ch, LED driver with independent PWM analog dimming and digital interface MPQ3323B-AEC1-Monolithic Power Systems, Inc.

4-channel, 320mA/Ch, LED driver with independent PWM analog dimming and digital interface MPQ3323B-AEC1

Monolithic Power Systems, Inc.

50+ people viewing

Response time: 15.60 hours

LED Drivers

2 models listed

7A, 5.5V Load Switch MP5087A with Programmable Current Limit, Slew Rate Control, Output Discharge, PGin-Monolithic Power Systems, Inc.

7A, 5.5V Load Switch MP5087A with Programmable Current Limit, Slew Rate Control, Output Discharge, PGin

Monolithic Power Systems, Inc.

80+ people viewing

Response time: 15.60 hours

Load Switch ICs

3 models listed


View more products of Monolithic Power Systems, Inc.

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...

See More

Related search keywords

DC To DC Converters
DC To DC Converters　Monolithic Power Systems, Inc.
Monolithic Power Systems, Inc.

This is the version of our website addressed to speakers of English in the United States. If you are a resident of another country, please select the appropriate version of Metoree for your country in the drop-down menu.

Copyright © 2025 Metoree