CXAS42223是一款超小型、低RON负载开关，可控制开启。该器件包含一个N沟道MOSFET，在1V到5V的输入电压范围内工作。开关由EN-pin控制，它能够直接与低压控制信号连接。
当输出负载超过电流限制阈值时，CXAS42223设备使用恒流模式将输出电流限制在安全水平。当驱动输出电压高于输入电压时，内部反向电压比较器禁用电源开关，以保护开关输入侧的设备。
•低输入电压：1V至5V
•超低导通电阻（RON）
•1A最大持续开关电流
•静态电流：5μA（典型值）
•关断电流：<1.5μa
<1.5μa
•低控制输入阈值允许使用
低压逻辑
•控制回转率以避免涌流
•快速输出放电（QOD）
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[ CXAS42223 ]
目录
7.相关产品
产品概述 返回TOP
The CXAS42223 is an ultra small, low RON load switch with controlled turn on. The device contains an N-Channel MOSFET that operates over an input voltage range of 1V to 5V. The switch is controlled by EN pin, which is capable of interfacing directly with low voltage control signals.
CXAS42223 device limits the output current to a safe level by using a constant current mode when the output load exceeds the current-limit threshold. An internal reverse voltage comparator disables the power switch when the output voltage is driven higher than the input to protect devices on the input side of the switch.
The CXAS42223 is available in Green WLCSP-0.9×0.9-4B package and operates over a temperature range of -40℃ to +85℃.
产品特点 返回TOP
• Low Input Voltage: 1V to 5V
• Ultra-Low On-State Resistance (RON)
RON = 54mΩ at VIN = 5.0V
RON = 54mΩ at VIN = 3.6V
RON = 58mΩ at VIN = 2.5V
RON = 74mΩ at VIN = 1.8V
RON = 84mΩ at VIN = 1.2V
RON = 84mΩ at VIN = 1.0V
• 1A Maximum Continuous Switch Current
• Quiescent Current: 5μA (TYP)
• Shutdown Current: < 1.5μa
< 1.5μa
• Low Control Input Thresholds Enable Use of
Low-Voltage Logic
• Controlled Slew Rate to Avoid Inrush Currents
• Quick Output Discharge (QOD)
• Available in Green WLCSP-0.9×0.9-4B Package
应用范围 返回TOP
Battery Powered Equipment
Portable Industrial Equipment
Portable Medical Equipment
Portable Media Players
Point of Sales Terminal
GPS Devices
技术规格书（产品PDF) 返回TOP
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产品封装图 返回TOP
电路原理图 返回TOP
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负载开关 |
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Part Number |
VCC(Min) (V) |
VCC(Max) (V) |
Iq (μA) |
Continuous Output Current(mA) |
SHDN Iq (μA) |
Current Limit(mA) |
Soft-Start |
Package |
|
2.2 |
5.5 |
19 |
1100 |
1 |
1850 |
Y |
SOT-23-5 |
|
|
2.2 |
5.5 |
19 |
1100 |
NA |
1750 |
Y |
SOT-23-5 |
|
|
2.2 |
5.5 |
19 |
1100 |
1 |
1850 |
Y |
TDFN-2x2-6L |
|
|
1 |
5 |
5 |
1000 |
1.5 |
1600 |
WLCSP-0.9x0.9-4B |
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