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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Power Distribution Switches, Load Drivers

Diodes Incorporated AP2820EMTR-G1

Name: AP2820EMTR-G1
Brand: Diodes Incorporated
SKU: AP2820EMTR-G1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AP2820EMTR-G1

Manufacturer:: Diodes Incorporated

Category:: Power Distribution Switches, Load Drivers

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: AP2820EMTR-G1.pdf

Description:: IC PWR SWITCH N-CHAN 1:1 8SOIC

Quantity:: RFQ Add To RFQ list

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Inventory:2,681

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Product details

Overview

AP2820EMTR-G1 from BCD Semiconductor Manufacturing Limited is a high-side power distribution switch with integrated N-channel MOSFET, charge pump, over-current and thermal protection, and deglitched open-drain FLAG output. It delivers 2.5A continuous load capability, 60mΩ R_DS(ON), and operates across 2.7V–5.5V input range-designed specifically for USB-compliant hot-plug power management in notebook and motherboard applications.

For engineers reviewing the AP2820EMTR-G1 datasheet, AP2820EMTR-G1 pinout, AP2820EMTR-G1 application, or AP2820EMTR-G1 equivalent, key selection criteria include guaranteed 2.5A continuous current rating, active-high enable logic with auto-discharge, SOIC-8/MSOP-8 package compatibility, UVLO threshold at 2.5V (±0.2V), and FLAG fault signaling with 10ms typical delay under over-current conditions.

Technical Context

The AP2820EMTR-G1 implements a charge-pump–driven high-side N-MOSFET switch with soft-start control to limit inrush current during power-up. Its protection architecture includes fold-back current limiting, thermal shutdown at 150°C with 30°C hysteresis, and under-voltage lockout that disables switching below 2.5V.

It features an open-drain FLAG pin with deglitching (5–15ms fault response), reverse-current blocking when disabled, and internal pull-low resistor on VOUT for controlled discharge in E/G versions-enabling safe hot-plug operation in USB bus and self-powered hub designs without external circuitry.

Key Specifications

Parameter	Value and Actual Design Meaning
R_DS(ON)	60 mΩ max at VIN=5V, I_OUT=2.5A - ensures ≤125mV drop at full load, meeting USB voltage-drop compliance.
Continuous Output Current	2.5 A - guaranteed rating for E/F/G/H versions, enabling higher-power USB peripheral support vs. 2.0A variants.
Supply Voltage Range	2.7 V to 5.5 V - supports single-supply operation across USB 2.0/3.0 host rails and battery-backed systems.
FLAG Delay Time	5–15 ms - deglitched response to over-current or over-temperature faults, preventing false triggering during transients.
UVLO Threshold	2.5 V ±0.2 V - prevents erratic switching during brown-out or weak supply conditions.
Shutdown Current	1.0 μA max - enables ultra-low quiescent power in system sleep states.
Enable Logic	Active-high with auto-discharge - simplifies interface to USB controller GPIOs without external pull-down or discharge components.

Pinout & Package

AP2820EMTR-G1 is packaged in SOIC-8 (standard leaded) and MSOP-8 (space-constrained) variants, both RoHS-compliant and green (G1 suffix). Pin functions are identical across packages.

Pin/Terminal	Circuit Role	Design Meaning
1 GND	Ground reference	Primary return path for internal charge pump, protection circuits, and FLAG sink current.
2,3 VIN	Power input	Dual-pin configuration reduces trace resistance and improves current handling for up to 2.5A input.
4 EN	Enable control	Active-high logic input; internal pull-down ensures default OFF state during power-up or controller reset.
5 FLAG	Fault indicator	Open-drain output; requires external pull-up; asserts low on OCP/OTP/UVLO events with 10ms typical latency.
6,7,8 VOUT	Switched output	Three parallel pins minimize conduction loss and thermal stress; internally connected to MOSFET drain.

Key Features

Feature	Design Value
Auto-discharge on shutdown	Integrated pull-low resistor (100–200 Ω) discharges VOUT capacitance rapidly after disable, preventing backfeed or latch-up in hot-plug scenarios.
Fold-back short-circuit protection	Limits short-circuit current to 1.18A - reduces power dissipation during sustained shorts and avoids thermal runaway.
No reverse current flow	Body diode is blocked when disabled - eliminates backfeeding from downstream loads into VIN rail, critical for multi-rail USB hubs.
UL & CB safety certification	UL File No. E339337 and Nemko CB Cert. NO62093 - validates compliance with IEC60950-1 for end-equipment safety approvals.
Soft-start turn-on	500μs output rise time - controls inrush dI/dt to prevent supply droop and false over-current trips during plug-in events.

Applications

USB Bus Hubs

Notebook Power Rails

Use Scenario: Self-powered USB 2.0/3.0 hub distributing power to multiple peripherals.

IC Role / Device Role / Timing Role: High-side switch controlling VBUS delivery per port with independent fault reporting via FLAG.

Use Value: Enables per-port over-current isolation and hot-plug detection without external sense resistors or discrete MOSFET drivers.

Use Scenario: Secondary 5V rail switching for USB-C PD accessories or card readers in thin-and-light notebooks.

IC Role / Device Role / Timing Role: Load switch managing power sequencing and inrush control during system resume-from-sleep.

Use Value: 2.5A rating supports higher-power peripherals; auto-discharge ensures clean rail collapse during suspend transitions.

Motherboard USB Controllers

Battery-Charger Circuits

Use Scenario: Front-panel or rear-panel USB ports requiring individual power control and fault monitoring.

IC Role / Device Role / Timing Role: Local power gate with FLAG feedback to southbridge or EC for real-time port status reporting.

Use Value: Deglitched FLAG output eliminates software polling overhead; UVLO prevents port activation during unstable 5V rail startup.

Use Scenario: Isolating charger IC input from system 5V rail during battery charging cycles.

IC Role / Device Role / Timing Role: Reverse-current–blocking high-side switch enabling bidirectional power path management.

Use Value: Prevents backfeed from charged battery into USB host during charger disconnect; 60mΩ R_DS(ON) minimizes insertion loss.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS22965DRLR	2.8A rated, 44mΩ R_DS(ON), no auto-discharge, 1.2V–5.5V range, no UVLO	Lacks integrated UVLO and auto-discharge; requires external pull-down for VOUT discharge	Preferred where lower R_DS(ON) and wider voltage range outweigh need for auto-discharge and fault flag timing control.
TPS22922EDSGT	2.0A rated, 50mΩ R_DS(ON), active-high enable, no FLAG output, no thermal shutdown	No fault reporting or thermal protection; limited to lower-current USB applications	Suitable only for non-critical 2.0A loads where FLAG feedback and thermal safety are handled externally.

Compared with TPS22965DRLR and TPS22922EDSGT, AP2820EMTR-G1 provides integrated fault signaling, thermal/UVLO protection, and auto-discharge-reducing BOM count and improving system-level reliability in USB-compliant hot-plug designs.

Availability

AP2820EMTR-G1 is available at Aetrix Electronics and suitable for USB bus hubs, notebook power rails, motherboard USB controllers, and battery-charger circuits requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for AP2820EMTR-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 China-based analog and power IC designer specializing in high-efficiency power management, LED drivers, and USB-compliant interface solutions.

The AP2820 product line targets USB power delivery and hot-plug applications, delivering integrated protection, low-loss switching, and compact packaging for space-constrained computing and portable electronics.

FAQ

What is the maximum continuous output current supported by AP2820EMTR-G1?

AP2820EMTR-G1 guarantees 2.5A continuous output current under specified operating conditions (VIN = 5.0V, TA = −40°C to +85°C). This rating applies to all E/F/G/H versions and is validated with 60mΩ R_DS(ON) and thermal shutdown at 150°C, making it suitable for high-power USB peripherals and self-powered hubs.

Does AP2820EMTR-G1 require an external pull-up resistor on the FLAG pin?

Yes. The FLAG pin is open-drain and must be pulled up externally (typically to 3.3V or 5V) to generate a valid logic-high signal during normal operation. When a fault occurs (OCP, OTP, or UVLO), FLAG pulls low with ≤70mV voltage drop at 5mA sink current, enabling direct interfacing with USB controller GPIOs.

How does the auto-discharge function operate in AP2820EMTR-G1?

When the EN pin is de-asserted, AP2820EMTR-G1 activates an internal 100–200Ω pull-low resistor between VOUT and GND. This discharges output capacitance rapidly, preventing backfeed into the VIN rail and ensuring clean power-down behavior-critical for USB hot-plug compliance and avoiding latch-up in multi-rail systems.

Is AP2820EMTR-G1 compatible with both SOIC-8 and MSOP-8 PCB footprints?

AP2820EMTR-G1 is supplied in SOIC-8 packaging (as indicated by the "TR" tape-and-reel suffix and standard part numbering). While the AP2820 family includes MSOP-8 variants (e.g., AP2820EMMTR-G1), the EMTR-G1 designation corresponds exclusively to the SOIC-8 version, with mechanical dimensions matching JEDEC MS-012AA standards and 1.27mm pitch.

AP2820EMTR-G1 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Package/Case:: 8-SOIC (0.154", 3.90mm Width)

Series:: -

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Switch Type:: USB Switch

Number of Outputs:: 1

Ratio - Input:Output:: 1:1

Output Configuration:: High Side

Output Type:: N-Channel

Interface:: On/Off

Voltage - Load:: 2.7V ~ 5.5V

Voltage - Supply (Vcc/Vdd):: Not Required

Current - Output (Max):: 2.5A

Rds On (Typ):: 60mOhm

Input Type:: Non-Inverting

Features:: Status Flag

Fault Protection:: Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SOIC

AP2820EMTR-G1 FAQ

1.How can I place an order for AP2820EMTR-G1 through Aetrix?

Please submit a Request for Quotation (RFQ) for AP2820EMTR-G1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for AP2820EMTR-G1 reliable?

The price and inventory of AP2820EMTR-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2820EMTR-G1 is usually 5 days.

3.What payment methods are accepted for AP2820EMTR-G1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2820EMTR-G1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AP2820EMTR-G1?

AP2820EMTR-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AP2820EMTR-G1 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for AP2820EMTR-G1?

For technical support, including AP2820EMTR-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2820EMTR-G1 requirements.

6.How does Aetrix verify that AP2820EMTR-G1 is sourced from the original manufacturer or authorized distributors?

All AP2820EMTR-G1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AP2820EMTR-G1 meets industry standards.

7.What is the process for return or replacement of AP2820EMTR-G1?

All AP2820EMTR-G1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2820EMTR-G1, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The AP2820EMTR-G1 part is unused and in its original packaging.

Return procedure for AP2820EMTR-G1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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