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

Diodes Incorporated AP2820EMM-G1

Name: AP2820EMM-G1
Brand: Diodes Incorporated
SKU: AP2820EMM-G1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AP2820EMM-G1

Manufacturer:: Diodes Incorporated

Category:: Power Distribution Switches, Load Drivers

Package:: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Datasheet:: AP2820EMM-G1.pdf

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

Quantity:: RFQ Add To RFQ list

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Inventory:3,638

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Product details

Overview

AP2820EMM-G1 from BCD Semiconductor Manufacturing Limited is a high-side power distribution switch with integrated N-channel MOSFET, charge pump, and protection circuitry, designed for USB-compliant hot-plug power control. It delivers 2.5A continuous load capability, 60mΩ R_DS(ON), active-high enable logic, and deglitched open-drain FLAG output for fault reporting to USB controllers in notebook and motherboard applications.

For engineers reviewing the AP2820EMM-G1 datasheet, AP2820EMM-G1 pinout, AP2820EMM-G1 application, or AP2820EMM-G1 equivalent, this device supports precise current-limiting power switching in USB bus hubs, battery-charger circuits, and hot-plug supplies where low voltage drop, thermal safety, and reverse-current blocking are critical design requirements.

Technical Context

The AP2820EMM-G1 implements a charge-pump–driven N-channel MOSFET high-side switch with fold-back over-current protection, thermal shutdown at 150°C (30°C hysteresis), and under-voltage lockout (2.5V threshold ±0.2V). Its soft-start limits inrush current during turn-on, while the FLAG pin provides asynchronous, deglitched fault indication for OCP/OTP events with 10ms typical delay.

It operates across 2.7V–5.5V input range, draws only 80μA typical supply current, and features no reverse current flow when disabled. The E-version variant guarantees 2.5A continuous load and includes internal output pull-low resistor for controlled discharge after shutdown.

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 Load Current	2.5 A - guaranteed rating for E/F/G/H versions, enabling higher-power USB peripherals and charging paths.
Supply Current (Active)	80 μA typ. - ultra-low quiescent draw minimizes standby power loss in always-on host systems.
FLAG Delay Time	5–15 ms - deterministic fault response window allows reliable host controller interrupt handling without chatter.
UVLO Threshold	2.5 V ±0.2 V - prevents erratic switching during brown-out or weak-supply conditions.
Thermal Shutdown	150 °C with 30 °C hysteresis - protects MOSFET and PCB during sustained overload or poor heatsinking.
Shutdown Current	1.0 μA max - enables true zero-power disable state for energy-sensitive portable designs.

Pinout & Package

AP2820EMM-G1 is housed in an MSOP-8 package (3.1 mm × 4.7 mm, 0.65 mm pitch), optimized for space-constrained USB ports and embedded power rails.

Pin/Terminal	Circuit Role	Design Meaning
1 GND	Power ground reference	Common return path for MOSFET source, charge pump, and internal bias networks.
2,3 VIN	Input power supply	Dual-pin configuration reduces IR drop and improves current sharing for up to 2.5A input routing.
4 EN	Enable control input	Active-high logic interface compatible with 1.6–5.5V CMOS levels; supports direct MCU GPIO drive.
5 FLAG	Fault status output	Open-drain output requiring external pull-up; asserts low on OCP/OTP/UVLO faults with deglitched timing.
6,7,8 VOUT	Switched output	Three parallel pins minimize trace resistance and thermal rise at 2.5A load; connects directly to downstream USB VBUS.

Key Features

Feature	Design Value
Low R_DS(ON) with USB compliance	60 mΩ ensures <125 mV drop at 2.5A, satisfying USB 2.0/3.0 VBUS regulation limits.
Integrated soft-start	500 μs turn-on time limits inrush current to prevent upstream supply sag or capacitor stress.
Fold-back short-circuit protection	Reduces short-circuit current to 1.18 A during VOUT=0V fault, lowering power dissipation and thermal risk.
No reverse current conduction	Blocks backflow from VOUT to VIN when disabled, eliminating need for external blocking diodes.
Output pull-low resistor (E/G versions)	100–200 Ω internal discharge path ensures rapid VOUT decay post-shutdown, improving system reset integrity.

Applications

USB Bus Hubs

Battery-Charger Circuits

Use Scenario: Power switching for individual downstream ports in self-powered USB 2.0/3.0 hubs.

IC Role / Device Role / Timing Role: High-side distribution switch controlling VBUS per port with fault isolation and current limiting.

Use Value: Enables independent port disable/fault reporting via FLAG, preventing single-port failure from collapsing entire hub supply.

Use Scenario: Controlled power delivery from system rail to Li-ion charger IC input during insertion of USB-C or proprietary adapters.

IC Role / Device Role / Timing Role: Hot-plug–capable power gate with UVLO and soft-start to avoid charger IC latch-up or input capacitor overstress.

Use Value: Guarantees clean, sequenced power ramp and immediate fault signaling if adapter shorts or overloads.

Notebook Motherboard VBUS

Hot-Plug Peripheral Slots

Use Scenario: Main VBUS switching for USB-A/USB-C ports on thin-and-light notebooks with strict thermal envelope.

IC Role / Device Role / Timing Role: Primary high-side switch with thermal shutdown and 2.5A rating supporting fast-charging accessories.

Use Value: Eliminates discrete MOSFET + driver + protection IC complexity while maintaining 60mΩ efficiency and 150°C safety margin.

Use Scenario: Power gating for modular expansion slots (e.g., ExpressCard, M.2 SATA) that accept hot-inserted modules.

IC Role / Device Role / Timing Role: Controlled power enable with fold-back OCP and reverse-current blocking during module insertion/removal.

Use Value: Prevents bus glitches, contact arcing, and backfeed into main system rail during mechanical mating.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TI TPS2051BDBVR	2.3A rated, SO-8 only, no internal pull-low resistor, 70mΩ R_DS(ON)	Limited to 2.3A loads; lacks discharge path for EMM-G1's fast VOUT decay requirement.	Choose when lower cost and SO-8 footprint are prioritized over 2.5A rating and discharge control.
ON Semi NIS5132MN	2.5A rated, MSOP-8, no FLAG output, no UVLO, 85mΩ R_DS(ON)	Missing fault reporting and brown-out protection - requires external monitoring circuitry.	Choose only if FLAG signaling and UVLO are not required, and higher R_DS(ON) is acceptable.

Compared with TPS2051BDBVR and NIS5132MN, AP2820EMM-G1 uniquely combines 2.5A capability, MSOP-8 footprint, deglitched FLAG, internal discharge resistor, and USB-compliant 60mΩ R_DS(ON) - making it optimal for compact, fault-aware USB power architectures.

Availability

AP2820EMM-G1 is available at Aetrix Electronics and suitable for USB power management, notebook motherboard VBUS control, and hot-plug peripheral slots requiring stable component supply, green RoHS compliance (G1 suffix), and long-term industrial lifecycle support.

Supply support for AP2820EMM-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-efficiency, high-reliability semiconductor solutions for consumer, computing, and industrial markets.

The AP2820 product line targets USB-compliant power distribution with integrated protection, delivering robust hot-plug switching for notebooks, docking stations, and peripheral hubs where space, thermal safety, and fault visibility are critical.

FAQ

What is the maximum continuous output current supported by AP2820EMM-G1?

The AP2820EMM-G1 is rated for 2.5A continuous output current under recommended operating conditions (VIN = 2.7–5.5V, TA = –40°C to +85°C). This rating is validated across temperature and voltage ranges per the E/F/G/H version specifications, with current limit threshold set at 2.8–4.2A depending on VIN and ambient conditions.

Does AP2820EMM-G1 require an external pull-up resistor on the FLAG pin?

Yes - the FLAG pin is an open-drain output and must be externally pulled up to a valid logic-high voltage (typically VIN or IOVDD) using a resistor between 1kΩ and 10kΩ. This ensures proper fault signaling to the host controller; absence of the pull-up renders FLAG nonfunctional.

How does the soft-start function reduce inrush current in AP2820EMM-G1?

The internal soft-start circuit ramps the gate voltage of the N-channel MOSFET over ~500μs, limiting dV/dt at VOUT and thereby capping peak inrush current to safe levels. This prevents input capacitor stress, avoids upstream supply droop, and eliminates audible coil whine in adjacent power stages.

Is AP2820EMM-G1 compatible with both USB 2.0 and USB 3.0 power delivery requirements?

Yes - its 60mΩ R_DS(ON) ensures ≤125mV voltage drop at 2.5A, well within USB 2.0 (≤150mV) and USB 3.0 (≤175mV) VBUS drop specifications. Combined with UVLO, thermal shutdown, and FLAG reporting, it meets functional and reliability requirements for both standards.

AP2820EMM-G1 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Package/Case:: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Series:: -

Packaging:: Tube

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-MSOP

AP2820EMM-G1 FAQ

1.How can I place an order for AP2820EMM-G1 through Aetrix?

Please submit a Request for Quotation (RFQ) for AP2820EMM-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 AP2820EMM-G1 reliable?

The price and inventory of AP2820EMM-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2820EMM-G1 is usually 5 days.

3.What payment methods are accepted for AP2820EMM-G1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2820EMM-G1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AP2820EMM-G1?

AP2820EMM-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AP2820EMM-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 AP2820EMM-G1?

For technical support, including AP2820EMM-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2820EMM-G1 requirements.

6.How does Aetrix verify that AP2820EMM-G1 is sourced from the original manufacturer or authorized distributors?

All AP2820EMM-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 AP2820EMM-G1 meets industry standards.

7.What is the process for return or replacement of AP2820EMM-G1?

All AP2820EMM-G1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2820EMM-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 AP2820EMM-G1 part is unused and in its original packaging.

Return procedure for AP2820EMM-G1:

1.Submit a request within 90 days.

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

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