Diodes Incorporated AP2511AS-13

Overview

AP2511AS-13 from Diodes Incorporated is a single-channel, active-high enable, current-limited high-side power switch optimized for USB and hot-swap applications. It delivers 2.5A continuous load current with 3.7A typical current limiting, 70mΩ typical R_DS(ON), 2µs short-circuit response time, and integrated output discharge. It operates across 2.7V–5.5V input voltage and supports SO-8 packaging for robust power delivery in desktop and docking station ports.

For engineers reviewing the AP2511AS-13 datasheet, AP2511AS-13 pinout, AP2511AS-13 application, or AP2511AS-13 equivalent, this device is selected for precise overcurrent protection, controlled rise/fall timing, reverse current blocking, and fault reporting via open-drain FLG - all critical for USB-compliant hot-plug power management in consumer electronics.

Technical Context

The AP2511AS-13 integrates a P-channel MOSFET high-side switch with internal current sensing, thermal shutdown at +140°C (20°C hysteresis), and UVLO activation at 2.0V (50mV hysteresis). Its deglitched FLG output asserts low after 7ms blanking upon overcurrent or overtemperature events, eliminating false triggers without external components.

It implements soft-start with 0.6ms typical output rise time and built-in discharge control using an N-MOS transistor to actively sink output capacitance when disabled. All IN and OUT pins are paralleled internally, requiring external tie-together per package pinout, and reverse current blocking prevents backflow when VIN = 0V and VOUT = 5V.

Key Specifications

Pinout & Package

AP2511AS-13 is supplied in SO-8 package with exposed pad (not electrically connected to GND), compliant with JEDEC MS-012AC. Thermal pad must be externally soldered to PCB ground plane for optimal θ_JA = 96°C/W performance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AP2501AS-13, AP2511AS-13 simplifies interface logic in active-high systems; compared with TCK107AG,TL, it delivers higher current, faster fault response, and eliminates external discharge components - reducing total solution size and improving reliability in USB-compliant applications.

Availability

AP2511AS-13 is available at Aetrix Electronics and suitable for USB hub power management, laptop docking station ports, and set-top box peripheral interfaces requiring stable component supply, long-term lifecycle support, and RoHS-compliant green packaging.

Supply support for AP2511AS-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, computing, and industrial markets.

The AP25xxA family targets USB-compliant hot-swap power distribution, emphasizing fast fault response, integrated discharge, and robust thermal protection in compact surface-mount packages for space-constrained end equipment.

FAQ

What is the purpose of the FLG pin's 7ms deglitch timeout?

The 7ms deglitch timeout prevents false overcurrent reporting during transient events such as output capacitor charging or brief inrush surges. It ensures FLG only asserts after sustained fault conditions exceed 7ms, eliminating need for external RC filtering while maintaining reliable fault detection under real-world hot-plug conditions.

Can AP2511AS-13 be used in dual-purpose HDMI/MHL ports?

No - its integrated discharge function continuously drains output capacitance when disabled, which may overstress the discharge MOSFET and prematurely discharge connected peripheral batteries. Diodes Incorporated explicitly cautions against use in MHL or shared-data/power ports due to this behavior and potential device overstress.

How does the AP2511AS-13 handle short-circuit recovery?

Upon short-circuit detection, it enters constant-current mode at ~3.7A and reduces output voltage. If the fault persists, thermal shutdown activates at ~140°C, cycling on/off with 20°C hysteresis until fault removal. FLG remains low throughout the event and clears only after both overcurrent and overtemperature conditions resolve.

Is the NC pin on AP2511AS-13 required to be connected?

Pin 8 (NC) has no internal connection but is recommended to be tied to the OUT net for mechanical reinforcement and reduced EMI susceptibility. Leaving it floating may increase radiated emissions in high-speed USB environments and compromise board-level mechanical integrity during thermal cycling.