Datasheet > MPQ8633B

MPQ8633B

更新时间： 2024-02-09 08:41:37

品牌	Logo	应用领域
芯源 - MPS		/
页数	文件大小	规格书
21页	1167K
描述
16V, 20A, Synchronous, Step-Down Converter with Adjustable Current Limit, Programmable Frequency, and Voltage Tracking

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MPQ8633B 数据手册

MPQ8633B

16V, 20A, Synchronous, Step-Down

Converter with Adjustable Current Limit,

Programmable Frequency, and Voltage Tracking

The Future of Analog IC Technology

DESCRIPTION

FEATURES

The MPQ8633B is a fully integrated, high-

frequency, synchronous, buck converter. It

offers a very compact solution that achieves

up to 20A of output current with excellent

load and line regulation over a wide input

supply range. The MPQ8633B operates at

high efficiency over a wide output current

load range.

 Wide Input Voltage Range

o 2.7V to 16V with External 3.3V VCC

Bias

o 4V to 16V with Internal Bias or

External 3.3V VCC Bias

 Differential Output Voltage Remote

Sense

 Programmable Accurate Current Limit

Level

The MPQ8633B adopts an internally

 20A Output Current

 Low R_DS(_ON)

MOSFETs

compensated

constant-on-time

(COT)

Integrated

Power

control mode that provides fast transient

response and eases loop stabilization.

 Proprietary Switching Loss Reduction

Technique

 Adaptive COT for Ultrafast Transient

Response

 Stable with Zero ESR Output Capacitor

 0.5% Reference Voltage over 0°C to

+70°C Junction Temperature Range

 1% Reference Voltage from -40°C to

+125°C Junction Temperature Range

 Selectable Pulse Skip or Forced CCM

Operation

 Excellent Load Regulation

 Output Voltage Tracking

 Output Voltage Discharge

 PGOOD Active Clamped at Low Level

during Power Failure

 Programmable Soft-Start Time from

1ms

 Pre-Bias Start-Up

The operating frequency can be set to

600kHz, 800kHz, or 1000kHz easily with

MODE

configuration,

allowing

the

MPQ8633B frequency to remain constant

regardless of the input and output voltages.

The output voltage start-up ramp is

controlled by an internal 1ms timer. It can

be increased by adding a capacitor on

TRK/REF. An open-drain power good

(PGOOD) signal indicates if the output is

within its nominal voltage range. PGOOD is

clamped at around 0.7V with an external

pull-up voltage when the input supply fails

to power the MPQ8633B.

Full protection features include over-current

protection (OCP), over-voltage protection

(OVP), under-voltage protection (UVP), and

over-temperature protection (OTP).

 Selectable Switching Frequency from

600kHz, 800kHz, and 1000kHz

 Non-Latch OCP, UVP, UVLO, Thermal

Shutdown, and Latch-Off for OVP

 Output Adjustable from 0.6V to

90%*VIN, up to 5.5V Max

The MPQ8633B requires a minimal number

of readily available, standard, external

components and is available in a QFN-21

(3mmx4mm) package.

 Available in a QFN-21 (3mmx4mm)

Package

MPQ8633B Rev. 1.01

8/3/2017

www.MonolithicPower.com

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

12 3 4 5 6 7...21

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与MPQ8633B相关器件

型号	品牌	获取价格	描述	数据表
MPQ8633BGLE	MPS	获取价格	16V, 20A, Synchronous, Step-Down Converter with Adjustable Current Limit, Programmable Fre
MPQ8633B-H	MPS	获取价格	16V、20A、同步降压变换器，具有可调电流限、可调频率和电压跟踪功能
MPQ8634A	MPS	获取价格	16V, 12A 降压变换器，具有可调电流限、可编程频率以及电压跟踪功能
MPQ8634AGLE	MPS	获取价格	Switching Regulator,
MPQ8634AGLE-Z	MPS	获取价格	Switching Regulator,
MPQ8634AGLE-Z-Z	MPS	获取价格	Switching Regulator,
MPQ8634B	MPS	获取价格	16V、20A、同步降压变换器，具有可调电流限、可编程频率以及电压跟踪功能
MPQ8634BGLE	MPS	获取价格	Switching Regulator,
MPQ8634BGLE-Z	MPS	获取价格	Switching Regulator,
MPQ8636	MPS	获取价格	High Efficiency, 4/10/20A, 18V Synchronous, Step-Down Converter

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