Datasheet > MP5461

MP5461

更新时间： 2024-04-09 19:02:23

品牌	Logo	应用领域
芯源 - MPS		开关
页数	文件大小	规格书
20页	1140K
描述
双路输入, 4-开关集成升降压 (Buck-Boost) 变换器, 具有输入 Oring 和选择功能

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MP5461 数据手册

MP5461

Dual Input, 4-Switch Integrated

Buck-Boost Converter

with Input ORing and Selection

DESCRIPTION

FEATURES



Dual Input ORing Switches:

o 4.2V to 5.5V Input Voltage Range for

VIN1

The MP5461 is a dual input, 4-switch, integrated

buck-boost converter. It is capable of regulating

the output voltage from 4.2V to 5.5V VIN1 and

2.5V to 5.5V VIN2. The VIN1 can support up to

22V input voltage but is not functional after

>5.75V.

o Supports 22V Voltage Stress for VIN1

o 5.75V OVP Shutdown for VIN1

o 2.5V to 5.5V Input Voltage Range for

VIN2

o Fast Reverse Block within 2μs

o 1A Current Capability for Each Channel

o Soft-Start Control

The MP5461 has two auto-ORing switches from

VIN1 and VIN2 to achieve a stable input for the

buck-boost converter. The two sets of ORing

MOSFETs are integrated. If one channel power

source falls, the fast turn-off protection

minimizes the reverse current.

o Fast SCP (Short-Circuit Protection) on

OR_OUT

o Power-Path Selection Input

o Power-Path Status Indication

Buck-Boost Converter

The buck-boost converter can operate from an

input voltage above, equal to, or below the

output voltage. It uses current-mode control with

1.8MHz fixed PWM frequency to optimize

stability and transient response. In a light-load

condition, it enters PFM mode to get high light-

load efficiency. Integrated MOSFETs minimize

the solution size while maintaining high

efficiency.



o 1.8MHz Switching Frequency for CCM

o 3.3V Fixed Output Voltage

o 500mA Continuous Output Current

o 1ms Soft-Start Time

o Auto PFM/PWM Mode

o Output Over-Voltage Protection

o Hiccup Over-Current Protection

1µA Shutdown Current

200µA Quiescent Current

Active Low System EN Pin

EN to OR_OUT Start-Up Delay 300μs

Over-Temperature Shutdown

Available in a Wafer Level Chip Scale

Packaging: CSP-12(1.4mmx1.8mm)



Fault protection includes VIN1 OVP shutdown,

output hiccup current limiting, and thermal

shutdown.

The MP5461 is available in a tiny CSP-12

(1.4mmx1.8mm) package.

APPLICATIONS



USB-C Cable

V_CONNPowered USB Device

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

MPS green status, please visit MPS website under Quality Assurance.

“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of

Monolithic Power Systems, Inc.

MP5461 Rev. 1.0

2/19/2019

www.MonolithicPower.com

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

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