Diodes Incorporated AP2511M8-13

Overview

AP2511M8-13 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, features 70mΩ typical R_DS(ON), 2µs short-circuit response time, integrated output discharge, and operates across 2.7V–5.5V input range - deployed in LCD TVs, docking stations, and USB-powered peripherals.

For engineers reviewing the AP2511M8-13 datasheet, AP2511M8-13 pinout, AP2511M8-13 application, or AP2511M8-13 equivalent, key selection criteria include enable polarity (active-high), thermal shutdown threshold (+140°C), 7ms FLG deglitch timing, reverse current blocking capability, and SO-8/MSOP-8 package compatibility with controlled rise time (0.6ms typical) and UVLO (2.0V typical).

Technical Context

The AP2511M8-13 integrates a P-channel MOSFET high-side switch with current-sense FET-based over-current detection and N-channel discharge transistor. Its protection architecture combines fast 2µs fault response, 7ms deglitched open-drain FLG reporting, and thermal shutdown with +20°C hysteresis to prevent oscillation during sustained overload.

It implements soft-start via internal slew-rate control (0.6ms typical t_R), under-voltage lockout (2.0V rising threshold), and reverse current blocking - all without external components. The device supports heavy capacitive loads up to 470µF and maintains stable operation under short-circuit conditions by clamping output current at 3.7A (typical ILIMIT) while limiting junction temperature to +150°C.

Key Specifications

Pinout & Package

AP2511M8-13 is packaged in MSOP-8 (8-pin mini small outline package) with exposed thermal pad. Pin numbering follows standard top-view orientation; exposed pad must be soldered to PCB ground plane for thermal management but not used as primary current return path.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AP2501M8-13, AP2511M8-13 offers direct compatibility with active-high GPIOs; compared with TCK112G, it delivers 1.7× higher current, 42% lower conduction loss, and essential discharge functionality for USB-compliant designs.

Availability

AP2511M8-13 is available at Aetrix Electronics and suitable for USB port power management, LCD TV backlight control, and docking station load switching requiring stable component supply, long-term lifecycle support, and RoHS-compliant green packaging.

Supply support for AP2511M8-13 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 computing markets.

The AP25xx family targets USB-compliant hot-swap and high-side power distribution, emphasizing fast fault response, integrated discharge, and robust thermal management in space-constrained packages like MSOP-8.

FAQ

What is the maximum allowable output capacitance for stable AP2511M8-13 operation?

The AP2511M8-13 supports up to 470µF output capacitance with stable turn-on behavior, as verified in datasheet Figure 11. For reliable short-circuit recovery and minimal overshoot, use ≤120µF with 2.5Ω load per typical application circuit. Larger values require verification of inrush current against 3.7A ILIMIT and thermal derating at full ambient temperature.

Does AP2511M8-13 require external components for basic over-current protection?

No external components are required for core over-current protection. The device integrates current-sense FET, deglitch timer (7ms), and FLG reporting. Only mandatory external parts are a 0.1µF ceramic capacitor from IN to GND and optional 120µF–470µF bulk output capacitance - all specified in the datasheet's Application Note section.

How does the output discharge function behave during power-down sequences?

When EN is de-asserted or VIN falls below UVLO (2.0V), the internal N-MOS discharge transistor activates, providing a 100Ω resistive path from OUT to GND. This discharges 120µF loads to <0.5V in ≤0.6ms, preventing residual voltage from interfering with downstream sequencing or causing latch-up in connected ICs.

Can AP2511M8-13 be used in dual-purpose HDMI/MHL ports?

No - Diodes Incorporated explicitly advises against using AP2511M8-13 in dual-purpose ports (e.g., HDMI/MHL) where constant output voltage is maintained while charging peripherals. Its active discharge function will continuously drain connected batteries when disabled, risking overstress of the discharge transistor and premature battery depletion.