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Diodes Incorporated AP2210K-2.8TRG1
- Part No.:
- AP2210K-2.8TRG1
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP2210K-2.8TRG1.pdf
- Description:
- IC REG LINEAR 2.8V 300MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
AP2210K-2.8TRG1 from Diodes Incorporated is a 300mA ultra-low dropout (ULDO) linear regulator with fixed 2.8V output, 250mV dropout at full load, ±1% output accuracy, 75dB PSRR at 100Hz, and 1µA shutdown current. It serves as a low-noise power supply for RF front-end circuits, cellular handset baseband ICs, and portable wireless transceivers requiring stable voltage under tight input headroom.
For engineers reviewing the AP2210K-2.8TRG1 datasheet, AP2210K-2.8TRG1 pinout, AP2210K-2.8TRG1 application, or AP2210K-2.8TRG1 equivalent, this device is selected for battery-powered RF systems where dropout voltage, output noise, and standby current directly impact signal integrity and runtime.
Technical Context
The AP2210K-2.8TRG1 uses a PMOS pass transistor architecture enabling ultra-low dropout operation independent of load current variation across temperature. Its bandgap reference and error amplifier deliver tight line/load regulation (≤4.5mV/≤6mV) and low temperature coefficient (42.8ppm/°C).
It integrates CMOS/TTL-compatible enable control, thermal shutdown, overcurrent protection, and reverse current blocking. The BYP pin supports external 100pF capacitor to reduce output noise to 260nV/√Hz, critical for RF LNA and mixer biasing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8V ±1% - ensures precise biasing of 2.8V-tolerant RF ICs without external feedback components. |
| Dropout Voltage | 250mV at 300mA - enables operation from 3.05V input (e.g., single Li-ion cell at end-of-discharge) while maintaining regulation. |
| PSRR | 75dB at 100Hz - suppresses low-frequency power supply ripple from switching converters feeding RF sections. |
| Standby Current | 1µA max - extends battery life in sleep modes of handheld transceivers and IoT edge nodes. |
| Output Noise | 260nV/√Hz - minimizes phase noise degradation in VCOs and local oscillator chains. |
| Enable Threshold | VIH = 2.0V, VIL = 0.4V - compatible with 1.8V/3.3V GPIOs for seamless system-level power sequencing. |
| Thermal Protection | 150°C junction shutdown - prevents damage during sustained overload or poor PCB thermal design. |
Pinout & Package
AP2210K-2.8TRG1 is packaged in SOT-23-5, a 5-pin surface-mount package with matte tin-plated leads, RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Input voltage supply | Accepts 3.8V–13.2V input; minimum 3.05V required for 300mA load at 2.8V output. |
| 2 (GND) | Ground reference | Common return path for input, output, and internal circuitry; requires low-impedance PCB connection. |
| 3 (EN) | Enable control input | Active-high logic input; pulls high ≥2.0V to enable regulator, ≤0.4V to enter 1µA shutdown mode. |
| 4 (BYP/ADJ) | Bypass capacitor terminal | Connects 100pF capacitor to GND to reduce output noise; not used for fixed-output versions (no adjustment function). |
| 5 (VOUT) | Regulated output | Delivers 2.8V ±1% to load; requires 2.2µF ceramic output capacitor for stability and PSRR performance. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 250mV at 300mA enables use with single-cell Li-ion (2.8V + 0.25V headroom) without brownout. |
| RF-optimized noise performance | 260nV/√Hz output noise with 100pF BYP capacitor meets stringent spectral purity requirements of 5G FR1 receivers. |
| Reverse current protection | Blocks backflow from VOUT to VIN during shutdown or input removal-prevents battery drain in multi-rail systems. |
| ESR-stable operation | Stable with 2.2µF X5R/X7R ceramic output capacitors-eliminates need for costly tantalum or polymer types. |
| Overtemperature shutdown | 150°C thermal limit with automatic recovery after cooldown-supports unattended operation in sealed enclosures. |
Applications
| Cellular Handset RF Front-End | Wireless IoT Sensor Node |
|---|---|
Use Scenario: Powering LNA, mixer, and VCO in LTE/5G handset transceiver modules. IC Role / Device Role / Timing Role: Low-noise, low-dropout voltage source for analog RF signal chain biasing. Use Value: 260nV/√Hz noise and 75dB PSRR prevent reciprocal mixing and LO phase noise degradation. |
Use Scenario: Supplying BLE/Wi-Fi SoC and sensor interface in battery-operated environmental monitors. IC Role / Device Role / Timing Role: Primary regulated rail for digital and analog subsystems during active and deep-sleep cycles. Use Value: 1µA shutdown current extends 10-year battery life; 250mV dropout sustains operation down to 3.05V input. |
| Portable Medical Ultrasound Probe | Industrial Wireless Gateway |
Use Scenario: Biasing high-speed ADC drivers and analog front-end amplifiers in handheld ultrasound units. IC Role / Device Role / Timing Role: Clean, stable 2.8V rail for precision analog signal conditioning prior to digitization. Use Value: ±1% output accuracy and 42.8ppm/°C tempco ensure consistent gain calibration across -40°C to +85°C operating range. |
Use Scenario: Powering Zigbee/Thread radio module and microcontroller in factory-floor wireless gateways. IC Role / Device Role / Timing Role: Secondary low-noise supply derived from main 5V/12V DC-DC converter. Use Value: 75dB PSRR isolates sensitive RF receiver from switching noise generated by upstream converters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ULDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1703T-2802E/MB | 300mA, 2.8V, 600mV dropout at 250mA; 65dB PSRR; no BYP pin; SOT-23-3 package | Lacks 100pF bypass capability and RF-grade noise performance; suited for non-RF digital loads | Select when board space is constrained and RF noise sensitivity is absent. |
| Torex XC6210B282MR-G | 300mA, 2.8V, 220mV dropout at 300mA; 70dB PSRR; 250nV/√Hz noise; SOT-25 package | Slightly lower dropout and noise, but no reverse current protection; requires external EN pull-up | Prefer for ultra-low-headroom designs where reverse leakage must be minimized externally. |
Compared with MCP1703T-2802E/MB and XC6210B282MR-G, AP2210K-2.8TRG1 uniquely combines RF-optimized noise suppression (260nV/√Hz), integrated reverse current blocking, and logic-compatible enable-all in a 5-pin SOT-23-5 footprint ideal for compact RF layouts.
Availability
AP2210K-2.8TRG1 is available at Aetrix Electronics and suitable for cellular handsets, wireless IoT sensors, and portable medical devices requiring stable component supply with guaranteed long-term continuity.
Supply support for AP2210K-2.8TRG1 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 high-reliability power management, signal integrity, and protection solutions.
The AP2210 series belongs to Diodes' RF-optimized ULDO regulator product line, engineered specifically for noise-sensitive wireless communication systems demanding ultra-low dropout, sub-µA shutdown, and high PSRR.
FAQ
What is the minimum input voltage required for AP2210K-2.8TRG1 to maintain regulation at 300mA load?
The minimum input voltage is 3.05V, calculated as VOUT + VDROP = 2.8V + 0.25V. At this input, the device delivers full 300mA with output voltage within ±1% tolerance. Operation below 3.05V results in dropout and unregulated output.
Can AP2210K-2.8TRG1 be used without the BYP capacitor in non-RF applications?
Yes. The BYP pin is left unconnected in fixed-output configurations; omitting the 100pF capacitor reduces output noise performance but does not affect basic regulation. PSRR remains at 75dB and dropout voltage unchanged-suitable for digital logic rails where noise is less critical.
Does AP2210K-2.8TRG1 require an input capacitor, and what value is recommended?
Yes. A 1.0µF X5R/X7R ceramic capacitor is required at VIN to stabilize the internal control loop and suppress high-frequency input transients. Placement within 2mm of VIN and GND pins is critical; larger values (e.g., 10µF) may improve transient response but are not necessary for stability.
How does the thermal shutdown behavior of AP2210K-2.8TRG1 operate during continuous overload?
When junction temperature reaches 150°C, the device shuts down output and disables pass transistor. It remains latched off until temperature drops below ~135°C, then automatically resumes regulation. This hysteresis prevents cycling and protects both the IC and downstream circuitry during sustained fault conditions.
AP2210K-2.8TRG1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 13.2V
- Voltage - Output (Min/Fixed):
- 2.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 180 µA
- Current - Supply (Max):
- 15 mA
- PSRR:
- 75dB (100Hz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
AP2210K-2.8TRG1 FAQ
1.How can I place an order for AP2210K-2.8TRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2210K-2.8TRG1 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 AP2210K-2.8TRG1 reliable?
The price and inventory of AP2210K-2.8TRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2210K-2.8TRG1 is usually 5 days.
3.What payment methods are accepted for AP2210K-2.8TRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2210K-2.8TRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2210K-2.8TRG1?
AP2210K-2.8TRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2210K-2.8TRG1 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 AP2210K-2.8TRG1?
For technical support, including AP2210K-2.8TRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2210K-2.8TRG1 requirements.
6.How does Aetrix verify that AP2210K-2.8TRG1 is sourced from the original manufacturer or authorized distributors?
All AP2210K-2.8TRG1 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 AP2210K-2.8TRG1 meets industry standards.
7.What is the process for return or replacement of AP2210K-2.8TRG1?
All AP2210K-2.8TRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2210K-2.8TRG1, 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 AP2210K-2.8TRG1 part is unused and in its original packaging.
Return procedure for AP2210K-2.8TRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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