Diodes Incorporated AP2822CKBTR-G1
- Part No.:
- AP2822CKBTR-G1
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP2822CKBTR-G1.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 SOT23-5
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
AP2822CKBTR-G1 from Diodes Incorporated is a high-side power distribution switch with integrated N-channel MOSFET, charge pump, and protection circuitry. It delivers 1.0A continuous load current, features 85mΩ RDS(ON), operates from 2.7V to 5.5V, and includes soft-start, over-current fold-back, thermal shutdown, and UVLO - designed for USB bus-powered hubs and hot-plug power supplies.
For engineers reviewing the AP2822CKBTR-G1 datasheet, AP2822CKBTR-G1 pinout, AP2822CKBTR-G1 application, or AP2822CKBTR-G1 equivalent, key selection criteria include load current rating (1.0A), auto-discharge capability (enabled), active-high enable logic, SOT-23-5 package constraints, and FLAG fault signaling for USB controller interfacing.
Technical Context
The AP2822CKBTR-G1 implements a charge-pump–driven N-channel MOSFET gate driver to achieve low RDS(ON) without requiring an external high-side driver. Its over-current protection uses fold-back limiting with 1.1A–2.1A trip range (typ. 1.5A at VOUT = 4.0V) and deglitched FLAG output for reliable fault reporting.
UVLO ensures operation only above 2.2V (typ. 2.5V), while thermal shutdown activates at +150°C with +30°C hysteresis. The device supports both auto-discharge (via internal 100–200Ω pull-low resistor) and non-auto-discharge variants - AP2822CKBTR-G1 includes auto-discharge per ordering code "C" and "KB" package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RDS(ON) | 85mΩ typical at VIN = 5.0V, IOUT = 2.0A - meets USB voltage-drop requirements under full load. |
| Continuous Load Current | 1.0A (AP2822C variant) - rated for sustained delivery without thermal derating in +85°C ambient. |
| Supply Voltage Range | 2.7V to 5.5V - compatible with USB 2.0/3.0 VBUS, Li-ion battery, and 3.3V/5V system rails. |
| Enable Logic | Active-high EN input - simplifies direct interface with USB controller GPIOs without level-shifting. |
| FLAG Output | Open-drain, deglitched, active-low fault indicator - provides clean OCP/OTP signaling to microcontroller interrupt pins. |
| Auto-discharge | Enabled (internal 100–200Ω pull-low on VOUT) - ensures rapid output discharge after shutdown for safe hot-plug sequencing. |
| Quiescent Current | 68µA typical - minimizes standby power loss in always-on USB hub applications. |
Pinout & Package
SOT-23-5 (KB package), 2.9mm × 1.6mm footprint, 1.3mm height, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Power ground reference for internal circuits and thermal path - must be low-impedance connection to PCB ground plane. |
| 2 | FLAG | Open-drain fault flag output - requires external pull-up; asserts low during over-current or over-temperature events. |
| 3 | EN | Active-high enable input - drives internal gate driver; logic high ≥1.6V enables switch, low ≤1.0V disables. |
| 4 | VOUT | Switched output terminal - connects to downstream load (e.g., USB port VBUS); includes internal auto-discharge resistor. |
| 5 | VIN | Main power input - accepts 2.7–5.5V supply; feeds internal charge pump and protection comparators. |
Key Features
| Feature | Design Value |
|---|---|
| USB-compliant RDS(ON) | 85mΩ ensures <100mV drop at 1.0A - satisfies USB 2.0/3.0 VBUS regulation tolerance. |
| Soft-start control | Internal ramp limits inrush current during hot-plug - prevents VBUS droop and false USB enumeration failures. |
| Fold-back over-current protection | Reduces output current to ~0.7A during short-circuit - lowers power dissipation and avoids thermal runaway. |
| UVLO with hysteresis | 2.5V turn-on threshold with 0.2V hysteresis - prevents oscillation near brown-out conditions. |
| No reverse current flow | Blocks backfeed from VOUT to VIN when disabled - eliminates need for external blocking diode in battery-backed systems. |
Applications
| USB Bus-Powered Hub | Hot-Plug Peripheral Port |
|---|---|
Use Scenario: Power switching for downstream USB ports in self-powered or bus-powered hubs. IC Role / Device Role / Timing Role: High-side load switch controlling VBUS delivery to individual USB ports with fault isolation. Use Value: Enables per-port power cycling and OCP-triggered shutdown without affecting other ports' operation. |
Use Scenario: Safe insertion/removal of USB peripherals into embedded host systems. IC Role / Device Role / Timing Role: Hot-plug sequencer that manages inrush, monitors faults, and signals host controller via FLAG. Use Value: Prevents VBUS collapse and system reset during plug-in; FLAG signal allows firmware to disable port before hardware damage. |
| Notebook USB-C Docking Station | Battery-Charger Power Path |
Use Scenario: Isolating auxiliary USB-C ports in compact docking solutions with shared 5V rail. IC Role / Device Role / Timing Role: Load switch managing power delivery to USB-C DFP ports with strict USB PD compliance margins. Use Value: Maintains <100mV VBUS drop across switch under 1.0A load - critical for stable USB enumeration and data link integrity. |
Use Scenario: Controlling power path between charger IC and system rail in portable devices. IC Role / Device Role / Timing Role: High-side switch enabling/disabling charging path while preventing reverse current into charger. Use Value: Eliminates need for external Schottky diode; auto-discharge ensures fast VOUT decay post-shutdown for accurate battery voltage sensing. |
Availability
AP2822CKBTR-G1 is available at Aetrix Electronics and suitable for USB power management, hot-plug peripheral interfaces, and battery-charger power-path control requiring stable component supply and long-term industrial availability.
Supply support for AP2822CKBTR-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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in power management, signal integrity, and protection solutions for consumer, computing, and industrial markets.
The AP2822 series belongs to Diodes' high-side load switch product line, engineered specifically for USB-compliant power distribution with integrated protection, soft-start, and fault reporting in space-constrained applications.
FAQ
What is the maximum continuous current rating for AP2822CKBTR-G1?
The AP2822CKBTR-G1 is configured as the "C" variant, rated for 1.0A continuous output current at VOUT = 4.0V and TA = +25°C. Derating applies above +85°C ambient; thermal shutdown activates at +150°C junction temperature to prevent damage.
Does AP2822CKBTR-G1 include auto-discharge functionality?
Yes. The "C" suffix indicates active-high enable with auto-discharge, and "KB" denotes the SOT-23-5 package variant that includes an internal 100–200Ω pull-down resistor on VOUT. This discharges the output capacitance within milliseconds after EN is deasserted.
How does the FLAG pin behave during over-current events?
The FLAG pin is an open-drain output that pulls low within 5–15ms (typ. 10ms) after over-current detection, remains asserted until fault clears, and includes deglitching to reject transient spikes. A pull-up resistor (typically 10kΩ to 3.3V/5V) is required for proper logic-level signaling to the host controller.
Is AP2822CKBTR-G1 recommended for new designs?
No. Per Diodes' official documentation (DS41399 Rev. 1–3), AP2822CKBTR-G1 is marked "NOT RECOMMENDED FOR NEW DESIGN" with no alternate part provided. It remains available for legacy support and existing production, but design-in for new projects is discouraged.
AP2822CKBTR-G1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- SC-74A, SOT-753
- 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):
- 1A
- Rds On (Typ):
- 85mOhm
- 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:
- SOT-23-5
AP2822CKBTR-G1 FAQ
1.How can I place an order for AP2822CKBTR-G1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2822CKBTR-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 AP2822CKBTR-G1 reliable?
The price and inventory of AP2822CKBTR-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2822CKBTR-G1 is usually 5 days.
3.What payment methods are accepted for AP2822CKBTR-G1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2822CKBTR-G1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2822CKBTR-G1?
AP2822CKBTR-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2822CKBTR-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 AP2822CKBTR-G1?
For technical support, including AP2822CKBTR-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2822CKBTR-G1 requirements.
6.How does Aetrix verify that AP2822CKBTR-G1 is sourced from the original manufacturer or authorized distributors?
All AP2822CKBTR-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 AP2822CKBTR-G1 meets industry standards.
7.What is the process for return or replacement of AP2822CKBTR-G1?
All AP2822CKBTR-G1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2822CKBTR-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 AP2822CKBTR-G1 part is unused and in its original packaging.
Return procedure for AP2822CKBTR-G1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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