Diodes Incorporated AP2511ASN-7

Overview

AP2511ASN-7 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 LCD TVs, docking stations, and USB-powered hubs.

For engineers reviewing the AP2511ASN-7 datasheet, AP2511ASN-7 pinout, AP2511ASN-7 application, or AP2511ASN-7 equivalent, key selection criteria include enable polarity (active-high), thermal shutdown threshold (+140°C), 7ms FLG deglitch timing, reverse current blocking capability, and U-DFN3030-8 package compatibility with high-density PCB layouts.

Technical Context

The AP2511ASN-7 integrates a P-channel MOSFET high-side switch with current-sense FET-based overload detection, eliminating external sense resistors. Its UVLO circuit activates at 2.0V (rising) with 50mV hysteresis, ensuring reliable turn-on only after stable rail establishment.

Thermal protection uses die-temperature sensing to disable the switch at +140°C with +20°C hysteresis, enabling auto-recovery cycling under sustained fault conditions. The open-drain FLG output reports overcurrent or overtemperature events after a fixed 7ms deglitch window, preventing false triggers during capacitive inrush.

Key Specifications

Pinout & Package

AP2511ASN-7 is packaged in U-DFN3030-8 (3.0mm × 3.0mm, 0.5mm pitch), featuring an exposed thermal pad for enhanced heat dissipation. The package is RoHS-compliant, halogen-free, and rated Moisture Sensitivity Level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AP2501ASN-7, AP2511ASN-7 eliminates level-shifting overhead in active-high control architectures; versus TCK112G, it delivers superior system-level safety through integrated discharge and tighter fault timing control-critical for USB-compliant hot-swap reliability.

Availability

AP2511ASN-7 is available at Aetrix Electronics and suitable for USB hub power management, LCD monitor port protection, and docking station load switching requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for AP2511ASN-7 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 AP25xxA family targets USB-compliant hot-swap and high-density power distribution, delivering integrated protection (overcurrent, thermal, UVLO, reverse-blocking) in space-constrained packages for next-generation portable and interface equipment.

FAQ

What is the maximum continuous output current supported by AP2511ASN-7?

The AP2511ASN-7 supports 2.5A maximum continuous load current per its Recommended Operating Conditions table. This rating assumes proper PCB thermal design (e.g., U-DFN3030-8 with exposed pad connected to ground plane) and ambient temperature ≤+85°C. At higher temperatures or with inadequate copper area, derating applies per θ_JA = 84°C/W.

Does AP2511ASN-7 require external components for basic operation?

No external components are required for core functionality. A 0.1µF ceramic capacitor between IN and GND is mandatory for stability, and an external pull-up resistor on FLG is needed for fault reporting. The integrated discharge path, soft-start, and 7ms deglitch eliminate need for external timers, resistors, or RC networks typically used in discrete load-switch designs.

How does the FLG output behave during a short-circuit event?

Upon detecting overcurrent, the FLG pin asserts low after a nominal 7ms deglitch period and remains low until both overcurrent and overtemperature conditions are cleared. During sustained short-circuit, thermal shutdown cycles the switch on/off while FLG stays asserted, providing unambiguous fault indication to the host controller without false triggers from inrush transients.

Can AP2511ASN-7 be used in dual-purpose ports like HDMI/MHL?

No-it is not recommended for dual-purpose ports where output voltage may be back-driven (e.g., MHL sink mode). The integrated discharge function will continuously drain connected batteries when disabled, and the device lacks reverse-voltage tolerance on OUT. Diodes Incorporated explicitly warns against such use due to overstress risk on the discharge transistor and potential latch-up.