AP2171A Series

1A Single Channel Current-Limited Power Switch

Catalog

1A Single Channel Current-Limited Power Switch

Part	Switch Type	Interface	Current - Output (Max) [Max]	Ratio - Input:Output [custom]	Input Type	Mounting Type	Features	Supplier Device Package	Package / Case	Output Configuration	Rds On (Typ)	Voltage - Load [Max]	Voltage - Load [Min]	Output Type	Fault Protection	Operating Temperature [Max]	Operating Temperature [Min]	Number of Outputs	Package / Case [y]	Package / Case [x]
Diodes Inc AP2171WG-7	USB Switch	On/Off	1 A	1:1	Non-Inverting	Surface Mount	Status Flag	SOT-25	SC-74A SOT-753	High Side	95 mOhm	5.5 V	2.7 V	P-Channel	Current Limiting (Fixed) Over Temperature Reverse Current UVLO	85 °C	-40 °C	1
Diodes Inc AP2171AS-13	USB Switch	On/Off	1 A	1:1	Non-Inverting	Surface Mount	Status Flag	8-SO	8-SOIC	High Side	95 mOhm	5.5 V	2.7 V	P-Channel	Current Limiting (Fixed) Over Temperature Reverse Current UVLO	85 °C	-40 °C	1	3.9 mm	0.154 in
Diodes Inc AP2171AFM-7	USB Switch	On/Off	1 A	1:1	Non-Inverting	Surface Mount	Status Flag	U-DFN2018-6	6-UFDFN Exposed Pad	High Side	90 mOhm	5.5 V	2.7 V	P-Channel	Current Limiting (Fixed) Over Temperature Reverse Current UVLO	85 °C	-40 °C	1

Catalog

1A Single Channel Current-Limited Power Switch

Key Features

• Over-Current and Thermal Protection

• 1.5A Accurate Current Limiting

• Reverse Current Blocking

• 95m On-Resistance

• Input Voltage Range: 2.7V - 5.5V

• 0.6ms Typical Rise Time

• Very Low Shutdown Current: 1μA (max)

• Fault Report (FLG) with Blanking Time (7ms typ)

• ESD Protection: 4kV HBM, 400V MM

• Active High (AP2171A) or Active Low (AP2161A) Enable

Description

The AP2161A and AP2171A are integrated high-side power switches optimized for Universal Serial Bus (USB) and other hot-swap applications. The family of devices complies with USB 2.0 and is available with both polarities of Enable input. They offer current and thermal limiting and short circuit protection as well as controlled rise time and undervoltage lockout functionality. A 7ms deglitch capability on the open-drain Flag output prevents false over-current reporting and does not require any external components.