CXAS42257是一款超小型、低导通电阻（Ron）负载开关，具有可控开启功能。该器件包含一个P沟道MOSFET，在1.0V到3.6V的输入电压范围内工作。开关由一个开/关输入（EN）控制，它能够直接与低压控制信号连接。在CXAS42257中，当开关断开时，增加了一个80Ω片上负载电阻器，用于输出快速放电。CXAS42257采用节省空间的4端WLCSP，间距为0.5毫米。这些装置的特点是在-40°C至80°C的自由空气温度范围内运行。
低输入电压1.0V至3.6V
“超低RON
·1A最大持续工作电流。
·超低静态电流<1μA
超低日落电流<2.5μA
·低控制输入阈值允许使用低电压逻辑。
控制回转率以避免涌流
快速输出放电。
·1.0 mmX1.0 mm 4销，销距0.5 mm超小型CSP封装
·输入引脚拉低电阻250kΩ。
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[ CXAS42257 ]
目录
7.相关产品
产品概述 返回TOP
The CXAS42257 is ultra-small, low ON resistance (Ron) load switches with controlled turn on. The devices contain a P-channel MOSFET that operates over an input voltage range 1.0V to 3.6V. The switch is controlled by an on/off input (EN), which is capable of in interfacing directly with low-voltage control signals. In CXAS42257 a 80Ω on-chip load resistor is added for output quick discharge when the switch is turned off. CXAS42257 is available in a space-saving 4-terminal WLCSP with 0.5mm pitch. The devices are characterized for operation over the free-air temperature range for -40°C to 80°C.
产品特点 返回TOP
„ Low input voltage 1.0V to 3.6V
„ Ultra low RON
- RON =26mΩ at VIN=3.6V
- RON =30mΩ at VIN=2.5V
- RON =35mΩ at VIN=1.8V
- RON =56mΩ at VIN=1.2V
„ 1A maximum continuous operating current.
„ Ultra low quiescent current<1μA
„ Ultra low sundown current<2.5μA
„ Low Control Input Thresholds Enable Use of Low-Voltage Logic.
„ Controlled Slew Rate to Avoid Inrush Currents
„ Quick Output Discharge.
„ 1.0 mmX1.0 mm 4-pin, pin pitch 0.5mm ultra small CSP Package
„ With Input Pin Pull Low resistance 250kΩ.
应用范围 返回TOP
„ Cellular phones.
„ Personal Digital Assistants (PDAs)
„ GPS Devices
„ MP3 Players
„ Digital Cameras
„ RF Modules
„ Peripheral Ports
„ Portable Instrumentation
技术规格书（产品PDF) 返回TOP
需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！
产品封装图 返回TOP
电路原理图 返回TOP
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Single Power Switch |
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|
Part NO. |
Vin(V) min. |
Vin(V) max. |
RON (Ohm) |
VOUT rising (μs) |
Ilimit (A) |
OC Flag |
Discharge (Ohm) |
Note |
Package |
|
1 |
3.6 |
25 |
140 |
1 |
N |
80 |
RON = 56m ohm@VIN=1.2V |
WLCSP2X2-4 |
|
|
1 |
3.6 |
78 |
48/220 |
0.5 |
N |
88/N |
RON = 146m ohm@VIN=1.2V |
WLCSP2X2-4 |
|
|
1.5 |
5 |
25 |
130 |
3 |
N |
250 |
RON= 68m ohm@VIN=1.5V |
WLCSP2X2-4 |
|
|
1.5 |
5.5 |
20 |
3300 |
3 |
N |
N |
RON= 48m ohm@VIN=1.5V |
WLCSP2X3-6 |
|
|
0.6 |
5.5 |
12 |
ADJ |
12 |
N |
150 |
HV Vbias Needs |
ADFN2X2-8 |
|
|
2.7 |
5.5 |
120 |
150 |
2 |
N |
75 |
N/A |
SOT-23-5 |
|
|
2.7 |
5.5 |
120 |
1900 |
2 |
N |
75 |
SS |
SOT-23-5 |
|
|
2.7 |
5.5 |
120 |
1900 |
2.5 |
N |
R |
SS,External discharging |
SOT-23-5/ADFN1.5X1.5-6 |
|
|
2.7 |
5.5 |
70 |
1400 |
1 |
Y |
130 |
N/A |
SOT-23-5 |
|
|
2.7 |
5.5 |
90 |
1200 |
ADJ |
-- |
-- |
-- |
SOT-23-5 |
|
|
2.7 |
5.5 |
90 |
1500 |
ADJ |
Y |
N |
SS, OC Setting by a R |
SOP-8/TDFN2X2-6/ MSOP-8 |
|
|
2 |
5.5 |
80 |
2500 |
2.5 |
N |
153 |
Turn on delay 800us |
TDFN2X2-8 |
|
|
2 |
5.5 |
85 |
1500 |
2.5 |
N |
153 |
Turn on delay 800us |
SOT-23-5 |
|
|
1.5 |
5.5 |
80 |
1000 |
-- |
N |
R |
External discharging |
TDFN1.6X1.6-6 |
|
|
2.7 |
5.5 |
70 |
1000 |
1.2 |
Y |
N |
SS, Fast SCP, HML 2.0 VOUT Reverse-Voltage Protection |
SOT-23-6 |
|
|
2.7 |
5.5 |
70 |
1000 |
3.3 |
Y |
N |
N/A |
MSOP-8 |
|
|
2.7 |
5.5 |
70 |
1000 |
1.5 |
Y |
N |
N/A |
SOP-8 |
|
|
2.7 |
5.5 |
125 |
1500 |
0.45 |
Y |
75 |
N/A |
SOP-8 |
|
|
2.7 |
5.5 |
70 |
1500 |
2.5 |
Y |
70 |
N/A |
SOP-8/MSOP-8/ TDFN3X3-8 |
|
|
0.6 |
5.5 |
5.5 |
ADJ |
10 |
N |
150 |
Need a 5V Bbias, A/B/C=5.5/11/22 m ohm; 10A/6A/4A |
TDFN3X3-8/MSOP-8(FD)/SOT-23-6 |
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