Datasheet > MPQ8633B-H

MPQ8633B-H

更新时间： 2024-04-09 19:00:25

品牌	Logo	应用领域
芯源 - MPS		/
页数	文件大小	规格书
21页	926K
描述
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

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MPQ8633B-H 数据手册

MPQ8633B-H

16V, 20A, Configurable-Frequency,

Synchronous Step-Down Converter with

Adjustable Current Limit and Voltage Tracking

DESCRIPTION

FEATURES

The MPQ8633B-H is a fully integrated, high-

frequency, synchronous step-down converter. It

offers a compact solution that can achieve up to

20A of output current (I_OUT) across a wide input

voltage (V_IN) range, with excellent load and line

regulation. The MPQ8633B-H operates at high

efficiency across the entire I_OUTload range.

•

Wide Input Voltage (V_IN) Range

o 2.7V to 16V V_INRange with External

3.3V VCC Bias

o 4V to 16V V_INRange with Internal Bias

or External 3.3V VCC Bias

Differential V_OUTRemote Sense

Configurable Accurate Current Limit

•

20A Output Current (I_OUT

)

Internally compensated constant-on-time (COT)

control provides fast transient response and

eases loop stabilization.

Low R_DS(_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% V_REFfor 0°C to 70°C T_JRange

1% V_REFfor -40°C to +125°C T_JRange

Selectable Pulse Skip Mode (PSM)/Forced

Continuous Conduction Mode (FCCM)

Excellent Load Regulation

V_OUTTracking

PGOOD Active Clamped Low during Power

Failure

Configurable Soft-Start Time (t_SS) from 1ms

Pre-Bias Start-Up

600kHz, 800kHz, or 1000kHz Selectable f_SW

Non-Latch OCP, OVP, UVP, UVLO, and

Thermal Shutdown

The adjustable switching frequency (f_SW) can be

set to 600kHz, 800kHz, or 1000kHz by

configuring the MODE pin. This maintains a

constant f_SW, regardless of the output voltage

(V_OUT) or V_IN.

•

The V_OUTstart-up ramp is controlled via an

internal timer (1ms). For a longer internal timer,

add a capacitor to the TRK/REF pin. An open-

drain power good (PGOOD) signal indicates

whether V_OUTis within its nominal voltage range.

If the input supply fails to power the

MPQ8633B-H, then PGOOD is clamped at

about 0.7V via an external pull-up voltage.

•

Full protection features include over-current

protection (OCP), over-voltage protection

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

thermal shutdown.

•

Adjustable Output between 0.6V and 90%

of V_IN, with 5.5V Maximum

Available in a QFN-21 (3mmx4mm)

Package

The MPQ8633B-H requires a minimal number

of readily available, standard external

components, and is available in a QFN-21

(3mmx4mm) package.

APPLICATIONS

•

Telecommunication/Networking Systems

Servers, Cloud-Computing, and Storage

Base Stations

General-Purpose POL Systems

12V Distribution Power Systems

High-End Televisions

Game Consoles and Graphic Cards

All MPS parts are lead-free, halogen-free, and adhere to the RoHS

directive. For MPS green status, please visit the MPS website under

Quality Assurance. “MPS”, the MPS logo, and “Simple, Easy Solutions” are

trademarks of Monolithic Power Systems, Inc. or its subsidiaries.

MPQ8633B-H Rev. 1.0

2/25/2022 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

MonolithicPower.com

12 3 4 5 6 7...21

中文翻译

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与MPQ8633B-H相关器件

型号	品牌	获取价格	描述	数据表
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
MPQ8636-10	MPS	获取价格	High Efficiency, 10/20A, 18V Synchronous, Step-Down Converter
MPQ8636-20	MPS	获取价格	High Efficiency, 10/20A, 18V Synchronous, Step-Down Converter

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