Diodes Incorporated AP2810AMMTR-G1

Overview

AP2810AMMTR-G1 from BCD Semiconductor is a 1.0A high-side power distribution switch with integrated N-channel MOSFET (R_DS(ON) = 60 mΩ @ 5V), enable control, and open-drain fault flag output. It operates from 2.7V to 5.5V, features soft-start, over-current protection with fold-back, thermal shutdown, and under-voltage lockout (UVLO = 2.5V typ), and is designed for USB-compliant hot-plug power management in notebook and motherboard applications.

For engineers reviewing the AP2810AMMTR-G1 datasheet, AP2810AMMTR-G1 pinout, AP2810AMMTR-G1 application, or AP2810AMMTR-G1 equivalent, key selection criteria include its MSOP-8 package, active-high enable logic (Condition A), auto-discharge function, 1.1–2.1A current limit range, and fault-flag timing (5–15 ms delay).

Technical Context

The AP2810AMMTR-G1 implements a charge-pump–driven high-side N-MOSFET switch with integrated UVLO, thermal shutdown (T_OTSD = 150°C), and fold-back short-circuit protection. Its enable pin supports logic-level compatibility (V_ENH ≥ 1.6V, V_ENL ≤ 1.0V) and internal pull-down ensures safe default-off state.

Flag output is open-drain with 35–70 mV low-level voltage at 5 mA sink, requiring external pull-up; reverse current is limited to ≤1.0 µA when disabled, and shutdown current is ≤1.0 µA across –40°C to 85°C ambient.

Key Specifications

Pinout & Package

AP2810AMMTR-G1 is housed in an MSOP-8 package (3.0 × 4.9 mm, 0.65 mm pitch), thermally optimized for PCB heat dissipation in space-constrained USB power rails.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS2051BDBVR and NIS5132MN, AP2810AMMTR-G1 uniquely integrates flag reporting, auto-discharge, and USB-optimized R_DS(ON) in MSOP-8-reducing BOM count and enabling faster, safer hot-plug response without external components.

Availability

AP2810AMMTR-G1 is available at Aetrix Electronics and suitable for USB power management, notebook motherboard rail control, and hot-plug peripheral switching requiring stable component supply, RoHS/Green compliance, and tape-and-reel logistics support.

Supply support for AP2810AMMTR-G1 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

BCD Semiconductor Manufacturing Limited is a Shanghai-based analog and power IC designer specializing in high-performance, cost-optimized semiconductor solutions for consumer, computing, and industrial markets.

The AP2810 product line targets USB-compliant, space-constrained power distribution with integrated protection-designed specifically for notebook, motherboard, and portable device manufacturers needing reliable, single-chip hot-plug power switches.

FAQ

What is the logic polarity of the EN pin on AP2810AMMTR-G1?

The AP2810AMMTR-G1 uses Condition A configuration: EN is active-high with auto-discharge functionality. When EN rises above 1.6V (min), the switch turns on; when pulled low, it disables and actively discharges VOUT through an internal 100–200 Ω resistor. This differs from Condition B/C/D variants which vary in enable polarity and discharge presence.

Does AP2810AMMTR-G1 require an external pull-up on the FLAG pin?

Yes - FLAG is an open-drain output and must be pulled up externally (typically to 3.3V or 5V) to generate a valid logic-high level when no fault is present. The internal pull-down ensures FLAG remains low during fault conditions, with V_FLG ≤ 70 mV at 5 mA sink current, compatible with standard GPIO inputs.

How does the fold-back current limiting work during a short-circuit event?

Upon detecting over-current, AP2810AMMTR-G1 reduces output current to ~0.6A (typical short-circuit current) instead of sustaining 1.1–2.1A limit. This fold-back behavior lowers power dissipation (P = I²R) in the MOSFET during sustained shorts, delaying thermal shutdown and allowing host firmware time to respond before catastrophic failure.

Can AP2810AMMTR-G1 be used with input voltages below 2.7V?

No - the absolute minimum operating VIN is 2.7V per recommended conditions, and UVLO triggers at 2.2–2.7V. Below 2.7V, the device may not regulate properly, R_DS(ON) increases significantly, and protection functions (OCP, OTP) are not guaranteed. For sub-2.7V applications, consider dedicated low-VIN power switches like AP2820 series.