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MPQ8632-10 参数 Datasheet PDF下载

MPQ8632-10图片预览
型号: MPQ8632-10
PDF下载: 下载PDF文件 查看货源
内容描述: 高效率18V同步降压型转换器系列为4A至20A [High Efficiency 18V Synchronous Step-down Converter Family for 4A to 20A]
分类和应用: 转换器
文件页数/大小: 46 页 / 1890 K
品牌: MPS [ MONOLITHIC POWER SYSTEMS ]
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MPQ8632
High Efficiency 18V Synchronous
Step-down Converter Family for 4A to 20A
FEATURES
Part Number
MPQ8632GLE-4
MPQ8632GLE-6
MPQ8632GLE-8
MPQ8632HGLE-10
MPQ8632GLE-10
MPQ8632GLE-12
MPQ8632GVE-15
MPQ8632GVE-20
Current
Rating (A)
4
6
8
10
10
12
15
20
Input Voltage
2.5V to 18V
2.5V to 18V
2.5V to 18V
2.5V to 18V
2.5V to 18V
2.5V to 18V
2.5V to 18V
2.5V to 18V
OVP Mode
Non-Latch
Non-Latch
Non-Latch
Non-Latch
Latch-Off
Non-Latch
Non-Latch
Non-Latch
DESCRIPTION
The MPQ8632 is a fully integrated high
frequency synchronous rectified step-down
switch mode converter. It offers a very compact
solution to achieve 4A/6A/8A/10A/12A/15A/20A
output current over a wide input supply range
with excellent load and line regulation.
The MPQ8632 uses Constant-On-Time (COT)
control mode to provide fast transient response
and ease loop stabilization.
An external resistor programs the operating
frequency from 200kHz to 1MHz and the
frequency keeps nearly constant as input
supply
varies
with
the
feedforward
compensation.
The default under voltage lockout threshold is
internally set at 4.1V, but a resistor network on
the enable pin can increase this threshold. The
soft start pin controls the output voltage startup
ramp. An open drain power good signal
indicates that the output is within nominal
voltage range.
It has fully integrated protection features that
include over-current protection, over-voltage
protection and thermal shutdown.
The MPQ8632 requires a minimal number of
readily available standard external components
and is available in a 16-Pin QFN 3mm×4mm or
a 29-Pin QFN 5mm×4mm package.
Low Input Voltage Range from 2.5V:
-- 2.5V to 18V with External 5V Bias
-- 4.5V to 18V with Internal Bias
Scalable Family of Products for 4A to 20A
Output Current Applications
-- 4A/6A/8A/10A/12A Share the Same
Footprint
--15A/20A Share the Same Footprint, with
Slight Change on Power Stage Section
from 4A/6A/8A/10A/12A
Optimal Low R
DS
(ON) Internal Power
MOSFETs Per Device
Proprietary Switching Loss Reduction
Technique
Adaptive COT for Ultrafast Transient
Response
0.5% Reference Voltage Over 0C to
70C Junction Temperature Range
Programmable Soft Start Time
Pre-Bias Start up
Programmable Switching Frequency from
200kHz to 1MHz
Non-latch OCP, OVP and Thermal
Shutdown Protection
Output Adjustable from 0.611V to 13V
APPLICATIONS
Telecom and Networking Systems
Base Stations
Servers
Personal Video Recorders
Flat Panel Television and Monitors
Distributed Power Systems
All MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Products, Quality Assurance page.
“MPS” and “The Future of Analog IC Technology” are registered trademarks of
Monolithic Power Systems, Inc.
MPQ8632 Rev.1.24
www.MonolithicPower.com
8/28/2013
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
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