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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Power Distribution Switches, Load Drivers

Diodes Incorporated AP2401S-13

Name: AP2401S-13
Brand: Diodes Incorporated
SKU: AP2401S-13
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AP2401S-13

Manufacturer:: Diodes Incorporated

Category:: Power Distribution Switches, Load Drivers

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: AP2401S-13.pdf

Description:: IC PWR SWITCH P-CHANNEL 1:1 8SO

Quantity:: RFQ Add To RFQ list

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Inventory:7,102

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Product details

Overview

AP2401S-13 from Diodes Incorporated is a single-channel, current-limited high-side power switch optimized for USB and hot-swap applications, featuring 2.5A accurate current limiting, 70mΩ on-resistance at 5V, latch-off over-current protection with 7ms deglitch, and integrated output discharge. It operates from 2.7V to 5.5V input and delivers controlled 0.6ms typical rise time in SO-8 package for reliable load switching in portable computing peripherals.

For engineers reviewing the AP2401S-13 datasheet, AP2401S-13 pinout, AP2401S-13 application, or AP2401S-13 equivalent, this device supports precise inrush control, reverse current blocking, and fault reporting via open-drain FLG with blanking-critical for USB-compliant power delivery, embedded hot-plug systems, and thermally constrained board designs.

Technical Context

The AP2401S-13 implements an N-channel MOSFET high-side switch with internal current-sense FET architecture, enabling fast 2µs short-circuit response without external sensing resistors. Its UVLO threshold (2.0V typ) and hysteresis (50mV) ensure clean turn-on during power ramp-up and prevent chatter during brown-out conditions.

Thermal shutdown activates at 140°C with 20°C hysteresis, and the integrated discharge path (100Ω typ) actively sinks output capacitance when disabled. The 7ms deglitch on FLG prevents false fault latching during transient capacitive inrush, eliminating need for external RC filtering.

Key Specifications

Parameter	Value and Actual Design Meaning
Current Limit	2.5A typical; clamps output current precisely to prevent damage during sustained overload or short circuit.
R_DS(ON)	70mΩ at V_IN = 5V, T_A = +25°C; minimizes conduction loss and self-heating under 2A continuous load.
Input Voltage Range	2.7V to 5.5V; compatible with USB 2.0/3.0 bus voltage and single-cell Li-ion backup rails.
Turn-On Rise Time	0.6ms typical (C_L = 1µF, R_LOAD = 5Ω); ensures controlled inrush into heavy capacitive loads like LCD bias rails.
FLG Blanking Time	7ms typical; suppresses false over-current reporting during capacitor charging transients without external components.
Thermal Shutdown	140°C trigger with 20°C hysteresis; provides autonomous recovery after fault removal and cooling.
Output Discharge Resistance	100Ω typical; discharges output capacitance to <0.5V within 0.6ms when disabled, preventing floating rail issues.

Pinout & Package

AP2401S-13 is supplied in SO-8 package (standard 150mil width), with exposed pad optional per MSOP-8EP variant-but AP2401S-13 specifically uses non-exposed SO-8 per ordering code "S" and tape-and-reel suffix "-13".

Pin/Terminal	Circuit Role	Design Meaning
GND (Pin 1)	Power ground reference	Primary return path for switch current and internal bias; must be low-impedance connection to PCB ground plane.
IN (Pins 2,3)	Input voltage supply	High-side source node; requires ≥0.1µF ceramic bypass capacitor directly to GND for stability and EMI suppression.
EN (Pin 4)	Enable control input	Active-low logic interface; drives internal driver only when pulled below 0.8V (V_IL) to enable switch.
FLG (Pin 5)	Fault reporting output	Open-drain, active-low signal asserted after 7ms deglitch upon over-current or over-temperature event.
OUT (Pins 6,7)	Switched output	High-side switched rail; all OUT pins must be externally tied together to drive load and share current capability.
NC (Pin 8)	No internal connection	Unused terminal; recommended to tie to OUT for mechanical stability and noise immunity.

Key Features

Feature	Design Value
Integrated Output Discharge	100Ω internal discharge path reduces output voltage to <0.5V in 0.6ms when disabled-eliminates need for external bleed resistors.
Latch-Off Over-Current Protection	Device remains off after 7ms deglitch timeout until EN toggle or power cycle-prevents automatic retry into persistent fault.
Reverse Current Blocking	Prevents backflow from V_OUT to V_IN when disabled (I_REV ≤ 1µA at V_OUT = 5V, V_IN = 0V), critical for multi-rail isolation.
Under-Voltage Lockout (UVLO)	Enables only above 2.0V (rising) and disables below 1.6V (falling); avoids erratic switching during power ramp or brown-out.
ESD Robustness	2kV HBM / 200V MM rating enables handling in standard assembly environments without special ESD controls.

Applications

USB Peripheral Power Switching

Laptop Docking Station Load Control

Use Scenario: Powering USB-connected HDDs, card readers, or Ethernet adapters with hot-plug capability.

IC Role / Device Role / Timing Role: High-side load switch managing inrush, short-circuit, and reverse-current protection per USB specification.

Use Value: Prevents host port reset during plug-in by limiting peak inrush to ≤2.5A and discharging VBUS capacitance before disconnect.

Use Scenario: Isolating auxiliary rails (e.g., DisplayPort, SATA, USB-C PD) in laptop docking stations.

IC Role / Device Role / Timing Role: Controlled power sequencing element with FLG feedback to MCU for fault-aware system management.

Use Value: Enables safe hot-swap of docked peripherals while providing real-time fault status via open-drain FLG to host controller.

Set-Top Box USB Port Protection

Industrial USB Hub Power Management

Use Scenario: Securing front-panel USB ports in residential gateways against accidental short circuits or ESD events.

IC Role / Device Role / Timing Role: Standalone over-current protector with latch-off behavior to avoid repeated fault cycling during service.

Use Value: Eliminates need for fuse replacement or manual reset-system remains stable until user-initiated EN toggle or power cycle.

Use Scenario: Managing power to multiple downstream USB devices in factory automation hubs with strict thermal constraints.

IC Role / Device Role / Timing Role: Thermally aware power switch with 140°C shutdown and 20°C hysteresis for unattended operation.

Use Value: Maintains uptime by autonomously recovering after transient overloads, while FLG alerts host of persistent faults.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-side current-limited power switch applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
AP2411S-13	Same SO-8 package and specs, but EN pin is active-high instead of active-low.	Requires inverted enable logic; suitable where MCU GPIO defaults to high or pull-up bias is preferred.	Select when system-level enable signaling aligns with active-high control, avoiding external inverters.
TCK112G,LF	2.2A limit, 90mΩ R_DS(ON), no integrated discharge, 10ms deglitch, -40°C to +105°C ambient range.	Lacks output discharge and has slower fault response; rated for wider temperature range in industrial settings.	Choose for extended temperature operation where discharge function is handled externally or not required.

Compared with AP2401S-13, AP2411S-13 offers identical protection and timing but simplifies enable logic integration, while TCK112G trades discharge capability and faster fault response for broader temperature tolerance-making each optimal for distinct control architecture or environmental requirements.

Availability

AP2401S-13 is available at Aetrix Electronics and suitable for USB peripheral power switching, laptop docking station load control, and set-top box USB port protection requiring stable component supply, full RoHS compliance, and long-term lifecycle support.

Supply support for AP2401S-13 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management, signal integrity, and protection solutions for consumer, industrial, and automotive markets.

The AP2401/AP2411 family targets USB-compliant hot-swap and high-side load switching applications, delivering integrated protection, precise current limiting, and compact packaging for space-constrained portable and embedded systems.

FAQ

What is the function of the NC pin on AP2401S-13?

Pin 8 is designated NC (No Connection) with no internal silicon connection. Diodes Incorporated recommends tying it externally to the OUT net for mechanical reinforcement and improved noise immunity-this does not affect electrical performance but enhances PCB robustness in vibration-prone applications like docking stations.

Does AP2401S-13 require an external pull-up resistor on the FLG pin?

Yes-FLG is an open-drain output requiring an external pull-up resistor (typically 10kΩ to V_CC of monitoring MCU) to generate a valid logic-high level when inactive. Without it, FLG cannot report fault status reliably; the 7ms deglitch and latch-off behavior remain functional regardless of pull-up value.

Can AP2401S-13 drive a 120µF output capacitor safely?

Yes-the device's 0.6ms typical rise time and built-in soft-start are validated with 120µF loads per datasheet Figure 1 and Application Information. For reliable operation, place a 0.1µF ceramic capacitor directly between IN and GND, and ensure EN is slew-rate controlled if driven from weak GPIO sources.

How does the latch-off behavior reset after an over-current event?

AP2401S-13 remains latched off until either the EN pin is toggled (e.g., pulled high then low for active-low EN) or VIN is cycled below UVLO threshold (~1.6V) and restored. No automatic recovery occurs-even after fault removal-ensuring system awareness before re-enabling power to potentially faulty loads.

AP2401S-13 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Package/Case:: 8-SOIC (0.154", 3.90mm Width)

Series:: -

Packaging:: Tape & Reel (TR)

Product Status:: Active

Switch Type:: USB Switch

Number of Outputs:: 1

Ratio - Input:Output:: 1:1

Output Configuration:: High Side

Output Type:: P-Channel

Interface:: On/Off

Voltage - Load:: 2.7V ~ 5.5V

Voltage - Supply (Vcc/Vdd):: Not Required

Current - Output (Max):: 2A

Rds On (Typ):: 70mOhm

Input Type:: Inverting

Features:: Load Discharge, Status Flag

Fault Protection:: Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SO

AP2401S-13 FAQ

1.How can I place an order for AP2401S-13 through Aetrix?

Please submit a Request for Quotation (RFQ) for AP2401S-13 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for AP2401S-13 reliable?

The price and inventory of AP2401S-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2401S-13 is usually 5 days.

3.What payment methods are accepted for AP2401S-13?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2401S-13 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AP2401S-13?

AP2401S-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AP2401S-13 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for AP2401S-13?

For technical support, including AP2401S-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2401S-13 requirements.

6.How does Aetrix verify that AP2401S-13 is sourced from the original manufacturer or authorized distributors?

All AP2401S-13 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AP2401S-13 meets industry standards.

7.What is the process for return or replacement of AP2401S-13?

All AP2401S-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP2401S-13, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The AP2401S-13 part is unused and in its original packaging.

Return procedure for AP2401S-13:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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