Diodes Incorporated AP22916ECA4-7

Overview

AP22916ECA4-7 from Diodes Incorporated is a single-channel, P-channel ultra-low-leakage load switch optimized for power sequencing and battery-powered systems. It operates from 1.3V to 5.5V input, delivers up to 2A continuous current, features true reverse current blocking (TRCB) with 25mV trigger threshold, and draws only 0.5µA quiescent current. Its slow turn-on response (1.3–7.2ms typical across 1.3–5.0V) enables controlled inrush limiting in portable medical devices and wearables.

For engineers reviewing the AP22916ECA4-7 datasheet, AP22916ECA4-7 pinout, AP22916ECA4-7 application, or AP22916ECA4-7 equivalent, key selection criteria include TRCB activation voltage, output discharge absence, slew rate control (0.3–5 mV/μs), and compatibility with 0.4mm-pitch U-WLB0808-4 (Type B) PCB layout constraints.

Technical Context

The AP22916ECA4-7 implements a smart pull-down ON pin with 750kΩ internal resistance and VIH ≥1.0V, enabling direct interface with 1.8V/3.3V logic without level shifting. Its TRCB circuitry monitors VOUT–VIN differential and disables the P-MOSFET within 10μs when exceeding 25mV, preventing backfeed into upstream rails even during shutdown.

This variant (E suffix) provides slow turn-on timing (e.g., 7200μs at 1.3V, 1300μs at 5.0V) and no output discharge resistor-distinguishing it from AP22916B/C-and supports precise inrush control in low-noise sensor subsystems where rapid VOUT ramping could induce EMI or reset sensitive peripherals.

Key Specifications

Pinout & Package

AP22916ECA4-7 uses the U-WLB0808-4 (Type B) wafer-level chip-scale package: 0.78mm × 0.78mm × 0.455mm footprint, 0.4mm ball pitch, backside laminate construction.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar load-switching applications.

Compared with AP22916DCA4-7, the AP22916ECA4-7 trades speed for superior inrush control in noise-sensitive analog subsystems; versus TCK127G, it sacrifices R_DS(ON) for integrated TRCB and guaranteed 1.3V operation-critical for legacy 1.3V SoC power domains.

Availability

AP22916ECA4-7 is available at Aetrix Electronics and suitable for portable medical sensors, wearable health monitors, GPS receivers, and industrial handheld scanners requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for AP22916ECA4-7 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 semiconductor company specializing in discrete, analog, and mixed-signal solutions for power management, signal integrity, and connectivity applications.

The AP22916 series belongs to Diodes' precision load switch product line, engineered specifically for ultra-low-power, reverse-current-protected power gating in space- and energy-constrained portable electronics.

FAQ

What is the maximum continuous load current supported by AP22916ECA4-7?

The AP22916ECA4-7 supports up to 2A continuous load current when VIN ≥ 1.5V, and 1A when VIN ≤ 1.5V, as specified in the Recommended Operating Conditions table. Thermal derating applies above +85°C ambient, with R_θJA = 195°C/W limiting power dissipation to 510mW at room temperature.

Does AP22916ECA4-7 include an output discharge function?

No. The AP22916ECA4-7 variant explicitly omits the output discharge resistor, unlike AP22916B/C. When disabled, VOUT remains floating (no intentional discharge path to GND), preserving charge on downstream hold-up capacitors and enabling fast re-enablement without recharging delays.

How does True Reverse Current Blocking (TRCB) operate during device shutdown?

TRCB remains fully active regardless of ON pin state: if VOUT exceeds VIN by ≥25mV, the internal comparator disables the P-MOSFET within 10μs-even when the device is disabled-blocking reverse current flow from output to input. This protects upstream sources such as batteries or LDOs during hot-swap or fault conditions.

Can AP22916ECA4-7 be used with 1.3V logic-level microcontrollers?

Yes. With VIH = 1.0V minimum and VIL = 0.35V maximum, the ON pin is compatible with 1.3V GPIO outputs. The internal 750kΩ pull-down ensures reliable disable state without external components, and the 0.5µA quiescent current avoids loading low-power MCU I/O drivers.