My Inquiry
My Account
Diodes Incorporated AP2805AMMTR-G1
- Part No.:
- AP2805AMMTR-G1
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
AP2805AMMTR-G1.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,885
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AP2805AMMTR-G1 from BCD Semiconductor is a 500mA 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 60mΩ RDS(ON) at 5V, supports 2.7–5.5V input, and features logic-level enable (active-high variant), UVLO, soft-start, and fold-back short-circuit protection - designed for USB-compliant hot-plug power management in notebook and motherboard applications.
For engineers reviewing the AP2805AMMTR-G1 datasheet, AP2805AMMTR-G1 pinout, AP2805AMMTR-G1 application, or AP2805AMMTR-G1 equivalent, this device requires attention to enable polarity (A = active-high), MSOP-8 thermal resistance (150°C/W), flag timing (5–15ms fault delay), reverse current blocking (<1µA), and auto-discharge capability - all critical for USB bus hub and battery-charger circuit reliability.
Technical Context
The AP2805AMMTR-G1 implements a charge-pump–driven high-side N-MOSFET architecture enabling low RDS(ON) without external gate drive. Its integrated fold-back current limiting reduces power dissipation during sustained shorts, while thermal shutdown (150°C) and hysteresis (30°C) prevent latch-up under overload.
UVLO (2.2–2.7V threshold with 0.2V hysteresis) ensures clean turn-on only above valid supply, and the deglitched open-drain FLAG pin signals OCP/OTP faults with 35–70mV low-state voltage at 5mA sink - requiring external pull-up for host controller interfacing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RDS(ON) | 60mΩ @ VIN=5V, IOUT=0.5A - meets USB 5V drop budget (≤250mV at 0.5A) |
| Current Limit | 0.7–1.4A - fold-back behavior reduces power stress during sustained short |
| Supply Current | 60µA typical - enables low-quiescent-power always-on USB port control |
| Shutdown Current | 1.0µA max - preserves battery life in portable systems during disable |
| FLAG Delay | 5–15ms - filters transient faults while ensuring timely host notification |
| UVLO Threshold | 2.2–2.7V with 0.2V hysteresis - prevents erratic switching near brown-out |
| Reverse Current | <1.0µA when disabled - blocks backfeed from VOUT to VIN in multi-rail systems |
Pinout & Package
AP2805AMMTR-G1 is housed in an MSOP-8 package (3.1 × 4.7 mm, 0.65 mm pitch), optimized for space-constrained USB ports and embedded power rails. Thermal resistance θJA is 150°C/W, requiring minimal PCB copper for 500mA continuous operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Power ground reference | Common return path for MOSFET source, charge pump, and protection circuits |
| 2,3 VIN | Input supply pins | Dual-pin layout lowers IR drop and improves current sharing into internal MOSFET |
| 4 EN | Enable control input | Active-high logic interface (A-version); 1.6–5.5V VENH, 0–1.0V VENL |
| 5 FLAG | Fault indicator output | Open-drain, active-low signal with deglitching; requires external pull-up to host rail |
| 6,7,8 VOUT | Switched output terminals | Three parallel pins reduce conduction loss and thermal resistance at load interface |
Key Features
| Feature | Design Value |
|---|---|
| Auto-discharge on disable | Integrated 100–200Ω pulldown on VOUT (A/C versions) clears residual charge for safe hot-swap |
| Soft-start | 500µs controlled turn-on time limits inrush current to protect upstream regulators and connectors |
| No reverse current | Sub-1µA reverse leakage blocks backfeed when VIN is absent - critical for battery-backed systems |
| UL & CB certified | UL File E339337 and Nemko CB IEC60950-1 (NO67288) - simplifies end-equipment safety certification |
| USB-compliant voltage drop | 60mΩ RDS(ON) ensures ≤300mV drop at 0.5A - satisfies USB 2.0/3.0 power delivery specs |
Applications
| USB Bus Hubs | Battery-Charger Circuits |
|---|---|
|
Use Scenario: Power switching for downstream USB ports in self-powered hubs with independent over-current protection per port. IC Role / Device Role / Timing Role: High-side load switch managing 5V rail delivery, with FLAG signaling OCP events to hub controller within 15ms. Use Value: Enables per-port current limiting and fault isolation without external sense resistors or comparators. |
Use Scenario: Isolating charging circuitry from system rail during charge termination or fault conditions. IC Role / Device Role / Timing Role: Controlled power gate between charger IC and battery/system rail, with auto-discharge clearing stored energy post-disable. Use Value: Prevents reverse current flow into charger IC and eliminates need for discrete discharge FET + resistor network. |
| Notebook Motherboard | Hot-Plug Power Supplies |
|
Use Scenario: Enabling/disabling auxiliary 5V rails (e.g., card reader, WWAN module) under OS or EC control. IC Role / Device Role / Timing Role: Logic-controlled high-side switch with UVLO and thermal shutdown - ensures rail only powers up with stable input. Use Value: Reduces standby current to <1µA and provides fail-safe shutdown before junction exceeds 150°C. |
Use Scenario: Hot-swap insertion of peripheral modules where power must ramp cleanly without disturbing shared supply. IC Role / Device Role / Timing Role: Soft-starting power switch with 500µs tON and deglitched FLAG - suppresses false triggers from connector bounce. Use Value: Eliminates inrush-induced voltage sag and enables deterministic fault reporting to system supervisor IC. |
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 |
|---|---|---|---|
| AP2141D | Lower RDS(ON) (45mΩ), higher current rating (1.5A), no auto-discharge, SOIC-8 only | Targets higher-power USB-C PD or industrial 12V rails; lacks integrated VOUT pulldown | Select when >1A load current or lower conduction loss is required; verify external discharge circuit needed |
| TPS22965DSGR | TI part: 42mΩ RDS(ON), 2.7–5.5V, 1.5A, integrated quick-output-discharge (QOD), WSON-8 | Superior thermal performance (θJA = 90°C/W), QOD replaces auto-discharge function | Prefer for space-constrained designs needing faster discharge and tighter thermal margin |
Compared with AP2141D and TPS22965DSGR, AP2805AMMTR-G1 offers integrated auto-discharge and UL/CB certification in MSOP-8 - advantageous for cost-sensitive, safety-regulated USB 2.0 hub and notebook designs where 500mA capacity suffices.
Availability
AP2805AMMTR-G1 is available at Aetrix Electronics and suitable for USB power management, notebook motherboard auxiliary rails, battery-charger isolation, and hot-plug peripheral supplies requiring stable component supply and RoHS-compliant green packaging.
Supply support for AP2805AMMTR-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 power management solutions for consumer, computing, and industrial markets.
The AP2805 product line delivers integrated high-side switches with protection, soft-start, and USB-compliant performance - engineered specifically for reliable, low-cost power gating in portable and embedded USB systems.
FAQ
What is the enable polarity of AP2805AMMTR-G1?
The "A" suffix denotes active-high enable: the device turns on when EN voltage exceeds 1.6V (min) and turns off when EN falls below 1.0V (max). This matches standard GPIO logic levels from microcontrollers and ECs without level-shifting.
Does AP2805AMMTR-G1 require external components for basic operation?
Yes - a minimum 2.2µF input capacitor (CIN) is required per datasheet; FLAG needs an external pull-up resistor (typically 4.7kΩ to 5V); and a 1µF output capacitor (COUT) stabilizes VOUT during load transients. No external current-sense or discharge FET is needed due to integrated functions.
How does the fold-back current limiting work during a short circuit?
When VOUT drops below ~4.0V, the AP2805AMMTR-G1 reduces current limit from nominal 1.0A down to ~0.7A, lowering power dissipation in the MOSFET. This fold-back behavior prevents thermal runaway and allows safe sustained short detection without immediate shutdown.
Is AP2805AMMTR-G1 recommended for new designs?
No - the datasheet explicitly marks AP2805 as "NOT RECOMMENDED FOR NEW DESIGN" and recommends AP2141D/AP2151D instead. AP2805AMMTR-G1 remains available for legacy support, but new designs should evaluate newer-generation BCD switches with improved RDS(ON), thermal performance, and feature sets.
AP2805AMMTR-G1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm 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):
- 500mA
- Rds On (Typ):
- 60mOhm
- Input Type:
- Non-Inverting
- Features:
- Load Discharge, 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
AP2805AMMTR-G1 FAQ
1.How can I place an order for AP2805AMMTR-G1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2805AMMTR-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 AP2805AMMTR-G1 reliable?
The price and inventory of AP2805AMMTR-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2805AMMTR-G1 is usually 5 days.
3.What payment methods are accepted for AP2805AMMTR-G1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2805AMMTR-G1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2805AMMTR-G1?
AP2805AMMTR-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2805AMMTR-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 AP2805AMMTR-G1?
For technical support, including AP2805AMMTR-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2805AMMTR-G1 requirements.
6.How does Aetrix verify that AP2805AMMTR-G1 is sourced from the original manufacturer or authorized distributors?
All AP2805AMMTR-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 AP2805AMMTR-G1 meets industry standards.
7.What is the process for return or replacement of AP2805AMMTR-G1?
All AP2805AMMTR-G1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2805AMMTR-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 AP2805AMMTR-G1 part is unused and in its original packaging.
Return procedure for AP2805AMMTR-G1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP2805AMMTR-G1 Tags
-
TPS22919DCKR
Texas Instruments
-
MIC2091-1YM5-TR
Microchip Technology
-
MIC2090-1YM5-TR
Microchip Technology
-
TPS22995RZFR
Texas Instruments
-
TPS22975DSGR
Texas Instruments
-
SIP32510DT-T1-GE3
Vishay Siliconix
-
ULN2003D1013TR
STMicroelectronics
-
MIC2005A-1YM5-TR
Microchip Technology
-
MIC2005A-1YM6-TR
Microchip Technology
-
TPS22916BYFPR
Texas Instruments
-
TPS22917DBVR
Texas Instruments
-
ULN2003APWR
Texas Instruments
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
