的设计原理图、元器件列表及PCB元件布局图。
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The TPS22967 is a small, ultra-low RON, single channel load switch with controlled turn on. The device contains an N-channel MOSFET that can operate over an input voltage range of 0.8V to 5.5V and can support a maximum continuous current of 4A. The switch is controlled by an on/off input (ON), which is capable of inte
RFacing directly with low-voltage control signals. In the TPS22967, a 225-Ω pull-down resistor is added for quick output discharge when switch is turned off.
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' ~. b6 _* A; l; o4 x. L& _) NThe TPS22967 is available in a small, space-saving 2mm x 2mm 8-pin SON package (DSG) with integrated thermal pad allowing for high power dissipation. The device is characterized for operation over the free-air temperature range of –40°C to 85°C.
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TPS22967主要特性：
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; r, E3 U9 ]2 S5 P+ NIntegrated Single Channel Load Switch
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Input Voltage Range: 0.8V to 5.5V
8 }. i4 u W v3 B2 TUltra low RON Resistance
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RON = 22mΩ at VIN = 5V (VBIAS = 5V)
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RON = 22mΩ at VIN = 3.6V (VBIAS = 5V)
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RON = 22mΩ at VIN = 1.8V (VBIAS = 5V)
3 Q0 F0 D2 D5 E# U' Z4A Maximum Continuous Switch Current
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Low Quiescent Current (50µA)
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Low Control Input Threshold Enables Use of 1.2V/1.8V/2.5V/3.3V Logic
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Configurable Rise Time
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Quick Output Discharge (QOD)
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SON 8-pin Package With Thermal Pad
" `; x H6 b* yESD Performance Tested per JESD 22
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TPS22967应用：
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, V0 l5 @" M! f! ]; g. @Ultrabook
w: s1 r+ J7 H! U, v2 T6 xNotebooks/Netbooks
# w4 @6 @# C$ L+ QTablet PC
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Consumer Electronics
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Set-top Boxes/Residental Gateways
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TPS22967方案介绍：
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& d: |. ]. q1 a. ZThe TPS22967EVM-023 evaluation module contains a single channel, ultra low ON resistance, 4-A load switch with controlled turn-on and adjustable rise time。
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TPS22967方案原理图：
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图2. TPS22967方案原理图
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TPS22967方案材料清单：
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5 L: [- n) I9 P6 }6 x h: MPCB元件布局图：
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发表于 2019-12-9 09:30
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