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Updated at 12/07/2025 10:30:15(UTC+8)

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Description

The TPS2055AD is a Power Distribution Switch intended for applications where heavy capacitive loads and short circuits are likely to be encountered. This device incorporates 80mR N-channel MOSFET high-side power switches for power-distribution systems. Each switch is controlled by an independent logic enable input. Gate drive is provided by an internal charge pump designed to control the power-switch rise times and fall times to minimize current surges during switching. The charge pump requires no external components and allows operation from supplies as low as 2.7V. When the output load exceeds the current-limit threshold or a short is present, these devices limit the output current to a safe level by switching into a constant-current mode, pulling the overcurrent (OCx) logic output low.
250mA per channel Continuous current
Independent thermal and short-circuit protection with overcurrent logic output
CMOS- and TTL-compatible enable inputs
2.5ms Typical rise time
Undervoltage lockout
Bidirectional switch

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TPS2055AD Specifications

Attribute	Attribute Value

Datasheet	Datasheet
3D Model	3D Model
Mounting Style	Surface Mount
Number of Pins	8 Pin
Case/Package	SOIC-8
Supply Voltage (DC)	5.50V (max)
Number of Outputs	1 Output
Input Voltage (DC)	5.50 V
Number of Positions	8 Position
Drain to Source Resistance (on) (Rds)	100 mΩ
Polarity	N-Channel
Power Dissipation	725 mW
Continuous Drain Current (Ids)	250 mA
Rise Time	3000 µs
Input Voltage (Max)	5.5 V
Input Voltage (Min)	2.7 V
Output Current (Max)	250 mA
Fall Time	4400 µs
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	0 ℃
Power Dissipation (Max)	725 mW
Input Voltage	5.5 V
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Operating Temperature	0℃ ~ 125℃ (TJ)
Product Lifecycle Status	Active
Packaging	Tube
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
ECCN Code	EAR99
HK STC License	NLR

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