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Diodes Incorporated AP2210K-3.3TRG1
- Part No.:
- AP2210K-3.3TRG1
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP2210K-3.3TRG1.pdf
- Description:
- IC REG LINEAR 3.3V 300MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:21,756
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Product details
Overview
AP2210K-3.3TRG1 from Diodes Incorporated is a 300mA ultra-low dropout (ULDO) linear regulator with fixed 3.3V output, 250mV typical dropout at full load, ±1% output voltage accuracy, and 75dB PSRR at 100Hz-designed for RF power supply filtering in cellular handsets and noise-sensitive wireless transceivers.
For engineers reviewing the AP2210K-3.3TRG1 datasheet, AP2210K-3.3TRG1 pinout, AP2210K-3.3TRG1 application, or AP2210K-3.3TRG1 equivalent, this device delivers verified low-noise regulation, logic-compatible enable control, reverse-current protection, thermal shutdown, and SOT-23-5 package compatibility for space-constrained battery-powered systems.
Technical Context
The AP2210K-3.3TRG1 integrates a bandgap reference, current-limit circuitry, and thermal shutdown into a single-pass transistor architecture. Its BYP/ADJ pin accepts a 100pF capacitor to reduce output noise to 260nV/√Hz, enabling clean biasing of RF front-end ICs.
It operates across -40°C to +125°C junction temperature with input voltage range 4.3V–13.2V (VOUT+1V minimum), supports CMOS/TTL enable logic (VIH ≥ 2.0V, VIL ≤ 0.4V), and maintains stable regulation under 0.1mA–300mA load with <6mV load regulation error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3V ±1% - ensures precise core/bias rail compliance for 3.3V logic and RF ICs |
| Dropout Voltage | 250mV typ. at 300mA - enables operation from 4.3V input while maintaining regulation in Li-ion single-cell systems |
| PSRR | 75dB at 100Hz - suppresses switching noise from upstream DC-DC converters feeding RF sections |
| Standby Current | 1µA max. - extends battery life during system sleep modes in portable devices |
| Output Noise | 260nV/√Hz - meets stringent spectral purity requirements for LNA and mixer bias supplies |
| Enable Threshold | VIH = 2.0V min., VIL = 0.4V max. - interfaces directly with 1.8V/3.3V GPIO without level-shifting |
| Thermal Protection | Internally limited - prevents latch-up or damage during sustained overload or poor PCB heatsinking |
Pinout & Package
SOT-23-5 package: 2.9mm × 1.6mm × 1.1mm body, matte tin-plated leads, RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Input voltage supply | Accepts 4.3V–13.2V; requires 1.0µF ceramic input capacitor for stability |
| 2 (GND) | Ground reference | Common return path for input, output, and enable; must be low-impedance for PSRR performance |
| 3 (EN) | Enable control input | CMOS/TTL-compatible; high = active, low = shutdown (1µA ISTD) |
| 4 (BYP/ADJ) | Bypass/adjust node | Connects 100pF capacitor to GND to minimize output noise; not used in fixed-output versions |
| 5 (VOUT) | Regulated output | Delivers 3.3V ±1% at up to 300mA; requires 2.2µF ceramic output capacitor for stability |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 250mV @ 300mA enables use with aging or partially discharged batteries |
| Reverse current protection | Prevents backflow from VOUT to VIN when input is removed-critical for multi-rail sequencing |
| Low-noise bypass architecture | 260nV/√Hz output noise with 100pF BYP capacitor supports RF signal chain integrity |
| Overtemperature shutdown | Thermal foldback activates before junction exceeds +150°C-ensures reliability in sealed enclosures |
| ±1% output accuracy | Tight initial tolerance reduces need for post-production calibration in precision analog subsystems |
Applications
| Cellular Handset Power Rails | RF Transceiver Bias Supply |
|---|---|
|
Use Scenario: Regulating 3.3V supply for baseband processor I/O and memory interface in GSM/LTE smartphones. IC Role / Device Role / Timing Role: ULDO regulator providing clean, sequenced power with enable control synchronized to modem boot sequence. Use Value: 250mV dropout preserves headroom during battery sag; ±1% accuracy ensures reliable digital logic margins. |
Use Scenario: Delivering ultra-low-noise 3.3V bias to LNA, mixer, and VCO stages in 2.4GHz Wi-Fi/BT modules. IC Role / Device Role / Timing Role: Low-noise linear regulator decoupling RF ICs from noisy switch-mode power supplies. Use Value: 75dB PSRR and 260nV/√Hz noise prevent reciprocal mixing and phase noise degradation. |
| Portable Medical Sensor Nodes | Industrial IoT Edge Controllers |
|
Use Scenario: Powering low-power ADCs, op-amps, and BLE radios in wearable ECG/SpO₂ monitors. IC Role / Device Role / Timing Role: Battery-efficient regulator with 1µA shutdown current extending runtime between charges. Use Value: Reverse-current protection avoids discharge through VOUT when main supply is disconnected during sensor hot-swap. |
Use Scenario: Providing stable 3.3V rail for microcontroller peripherals and isolated CAN/RS-485 transceivers in factory gateways. IC Role / Device Role / Timing Role: Robust linear regulator with thermal shutdown and overcurrent protection for unattended industrial deployments. Use Value: -40°C to +125°C operating range and internal fault protection ensure uptime in harsh ambient conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ULDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-3302E/TO | 250mA output, 600mV dropout at 250mA, no BYP pin, 17µA quiescent current | Lacks noise-reduction bypass capability; higher dropout limits low-VIN operation | Choose when cost sensitivity outweighs RF noise performance and battery headroom constraints |
| TLS820B2ELVSE | Automotive-grade AEC-Q100 qualified, 500mA, 200mV dropout, integrated watchdog timer | Designed for automotive infotainment; includes fail-safe monitoring not needed in consumer portables | Choose only for automotive programs requiring PPAP documentation and extended temperature validation |
Compared with MCP1700-3302E/TO and TLS820B2ELVSE, the AP2210K-3.3TRG1 uniquely balances ultra-low noise (260nV/√Hz), ultra-low dropout (250mV), and 1µA shutdown-making it optimal for battery-powered RF systems where spectral purity and energy efficiency are co-critical.
Availability
AP2210K-3.3TRG1 is available at Aetrix Electronics and suitable for cellular handset power rails, RF transceiver bias supplies, portable medical sensor nodes, and industrial IoT edge controllers requiring stable component supply across production lifecycles.
Supply support for AP2210K-3.3TRG1 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-performance power management, signal integrity, and protection solutions for consumer, industrial, and communications markets.
The AP2210 belongs to Diodes' ULDO regulator product line, engineered specifically for noise-sensitive, battery-operated RF and portable electronics where minimal dropout, low quiescent current, and high PSRR are mandatory.
FAQ
What is the minimum input voltage required for AP2210K-3.3TRG1 to maintain regulation?
The recommended minimum input voltage is 4.3V (VOUT + 1.0V), per the datasheet's operating condition guidance. At 300mA load, the 250mV typical dropout means regulation is maintained down to 3.55V input-but 4.3V ensures full PSRR performance and margin against line/load transients. Input below 4.3V risks degraded ripple rejection and potential dropout under dynamic load.
Does AP2210K-3.3TRG1 require an external bypass capacitor on the BYP pin?
Yes-the BYP pin (Pin 4) must be connected to ground via a 100pF ceramic capacitor to achieve the specified 260nV/√Hz output noise. This capacitor stabilizes the internal reference and reduces high-frequency noise coupling. Omitting it degrades noise performance but does not affect basic regulation functionality.
Can AP2210K-3.3TRG1 be used in automotive applications?
The AP2210K-3.3TRG1 is not AEC-Q100 qualified and lacks automotive-specific qualification documentation. While its -40°C to +125°C operating range meets ambient temperature requirements, Diodes explicitly states that automotive-grade variants require separate part numbers and PPAP-capable manufacturing-so this variant is intended for commercial/industrial portable electronics only.
How does reverse current protection function in AP2210K-3.3TRG1?
Reverse current protection blocks conduction from VOUT to VIN when the input supply is removed or falls below the output voltage-preventing battery drain or unintended powering of upstream circuits. This is implemented via an internal MOSFET structure that remains off unless VIN > VOUT + VTH, eliminating the need for an external blocking diode in battery backup paths.
AP2210K-3.3TRG1 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):
- 3.3V
- 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-3.3TRG1 FAQ
1.How can I place an order for AP2210K-3.3TRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2210K-3.3TRG1 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-3.3TRG1 reliable?
The price and inventory of AP2210K-3.3TRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2210K-3.3TRG1 is usually 5 days.
3.What payment methods are accepted for AP2210K-3.3TRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2210K-3.3TRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2210K-3.3TRG1?
AP2210K-3.3TRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2210K-3.3TRG1 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-3.3TRG1?
For technical support, including AP2210K-3.3TRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2210K-3.3TRG1 requirements.
6.How does Aetrix verify that AP2210K-3.3TRG1 is sourced from the original manufacturer or authorized distributors?
All AP2210K-3.3TRG1 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-3.3TRG1 meets industry standards.
7.What is the process for return or replacement of AP2210K-3.3TRG1?
All AP2210K-3.3TRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2210K-3.3TRG1, 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-3.3TRG1 part is unused and in its original packaging.
Return procedure for AP2210K-3.3TRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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