Diodes Incorporated AP2210N-5.0TRG1
- Part No.:
- AP2210N-5.0TRG1
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AP2210N-5.0TRG1.pdf
- Description:
- IC REG LINEAR 5V 300MA SOT23-3
- Quantity:
- Payment:

- Shipping:

Inventory:10,011
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Product details
Overview
AP2210N-5.0TRG1 from Diodes Incorporated is a 300mA ultra-low dropout (ULDO) linear regulator with fixed 5.0V output, 250mV typical dropout at full load, ±1% output voltage accuracy, and 75dB PSRR at 100Hz. It features logic-compatible enable control, 1µA max standby current, and reverse current protection-designed for noise-sensitive RF power rails in handheld wireless devices.
For engineers reviewing the AP2210N-5.0TRG1 datasheet, AP2210N-5.0TRG1 pinout, AP2210N-5.0TRG1 application, or AP2210N-5.0TRG1 equivalent, key selection criteria include dropout performance under 300mA load, thermal shutdown behavior in SOT-23-5, low-noise operation with 100pF BYP capacitor, and compatibility with 2.0V–13.2V input range in battery-powered systems.
Technical Context
The AP2210N-5.0TRG1 uses a PMOS pass transistor architecture enabling ultra-low dropout and inherent reverse current blocking without external components. Its bandgap reference and error amplifier deliver tight line/load regulation (≤4.5mV/≤6mV) across -40°C to +125°C.
Internal thermal shutdown activates at +150°C junction temperature, and current limiting trips at 450–900mA. The BYP/ADJ pin supports either 100pF bypass for noise reduction (fixed version) or external resistor divider (adjustable version), though AP2210N-5.0TRG1 implements the fixed 5.0V configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0V ±1% - ensures stable MCU core or RF IC supply within tolerance limits |
| Max Output Current | 300mA - sufficient for powering baseband processors or RF front-end modules |
| Dropout Voltage | 250mV typ. at 300mA - enables operation from 5.25V input when battery voltage sags |
| PSRR | 75dB at 100Hz - suppresses switching noise from adjacent DC-DC converters |
| Standby Current | 1µA max - extends battery life during system sleep modes |
| Operating Input Range | 2.5V to 13.2V - supports single-cell Li-ion (up to 4.2V) and multi-cell or adapter inputs |
| Enable Threshold | VIH = 2.0V min., VIL = 0.4V max. - compatible with 1.8V/3.3V GPIO without level shifters |
Pinout & Package
AP2210N-5.0TRG1 is housed in a RoHS-compliant, matte tin-plated SOT-23-5 package (0.015g), optimized for high-density PCB layouts and reflow soldering per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Input supply connection | Accepts 2.5–13.2V; requires 1.0µF ceramic input capacitor for stability |
| 2 (GND) | Ground reference | Low-impedance return path for load and quiescent current; ties to system ground plane |
| 3 (EN) | Logic-enable control | CMOS/TTL-compatible; high ≥2.0V enables regulation, low ≤0.4V places device in 1µA shutdown |
| 4 (BYP/ADJ) | Noise reduction / adjustment node | For fixed 5.0V version: connect 100pF capacitor to GND to reduce output noise to 260nV/√Hz |
| 5 (VOUT) | Regulated output | Delivers 5.0V ±1% with ≤6mV load regulation; requires 2.2µF ceramic output capacitor |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 250mV at 300mA enables use with aging batteries or low-headroom supplies |
| High PSRR | 75dB at 100Hz rejects ripple from upstream switching regulators in mixed-signal systems |
| Reverse current protection | Eliminates need for external blocking diode in back-to-back regulator configurations |
| Thermal & overcurrent protection | Auto-recovery shutdown prevents damage during sustained overload or poor heatsinking |
| Low-noise BYP pin | 100pF capacitor reduces integrated output noise, critical for RF synthesizer VCO supplies |
Applications
| Cellular Handset Power Rail | Wireless Audio Transmitter |
|---|---|
|
Use Scenario: Powers RF power amplifier bias circuitry in 4G LTE handset designs where input voltage varies from 3.4V to 4.2V. IC Role / Device Role / Timing Role: ULDO regulator supplying clean 5.0V to PA driver stage, rejecting noise from baseband SoC's DC-DC converters. Use Value: 250mV dropout allows regulation down to 5.25V input, maintaining PA linearity as battery discharges; 75dB PSRR prevents AM-to-PM distortion. |
Use Scenario: Supplies low-noise 5.0V to Bluetooth 5.0 transceiver IC in true wireless stereo earbuds. IC Role / Device Role / Timing Role: Fixed-output LDO delivering stable rail to RF section, controlled via host MCU GPIO. Use Value: 1µA shutdown current extends standby time; 100pF BYP capacitor reduces phase noise on VCO supply, improving EVM performance. |
| PC Motherboard USB Hub | PDA System Management Unit |
|
Use Scenario: Provides isolated 5.0V supply to USB 2.0 hub controller on compact embedded motherboard. IC Role / Device Role / Timing Role: Secondary LDO decoupling USB PHY from noisy main 5V rail generated by buck converter. Use Value: Tight ±1% accuracy ensures USB signaling compliance; SOT-23-5 footprint saves space versus larger TO-252 alternatives. |
Use Scenario: Powers real-time clock and SRAM backup circuitry in legacy PDA with coin-cell backup path. IC Role / Device Role / Timing Role: Always-on LDO with enable control, supporting RTC wake-up and low-power suspend states. Use Value: Reverse current protection prevents coin-cell discharge through VIN when main battery is removed; thermal shutdown guards against enclosure overheating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ULDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-5002E/TO | 250mA max output, 600mV dropout at 250mA, no BYP pin, 6µA quiescent current | Lacks 100pF noise filtering capability; lower current rating limits PA bias use | Prefer for cost-sensitive, low-current sensor nodes where PSRR >70dB is not required |
| Torex XC6206P502MR-G | 300mA output, 350mV dropout at 300mA, no enable pin, 1µA standby, SOT-23-3 only | Non-enabling design eliminates GPIO control; SOT-23-3 lacks EN/BYP pins of SOT-23-5 | Choose only when board layout prohibits 5-pin package and enable functionality is unnecessary |
Compared with MCP1700-5002E/TO and XC6206P502MR-G, AP2210N-5.0TRG1 uniquely combines 300mA capability, 250mV dropout, integrated enable, and BYP-based noise suppression-making it optimal for RF and battery-constrained systems requiring both headroom efficiency and spectral purity.
Availability
AP2210N-5.0TRG1 is available at Aetrix Electronics and suitable for cellular handset power rails, wireless audio transmitters, PC motherboard USB hubs, and PDA system management units requiring stable component supply across production lifecycles.
Supply support for AP2210N-5.0TRG1 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 semiconductor company specializing in discrete, analog, and mixed-signal solutions, with manufacturing certified to IATF 16949 and product qualification per AEC-Q100/101 standards.
The AP2210 series belongs to Diodes' precision ULDO regulator product line, engineered specifically for noise-sensitive RF and portable battery-powered applications demanding ultra-low dropout and high PSRR.
FAQ
What is the minimum input voltage required for AP2210N-5.0TRG1 to maintain regulation at 300mA load?
The minimum input voltage is 5.25V, calculated as VOUT + VDROP = 5.0V + 0.25V. At 300mA and +25°C, the typical dropout is 250mV; the datasheet specifies VIN ≥ VOUT + 1V (i.e., ≥6.0V) for optimal PSRR performance, but regulation remains functional down to 5.25V.
Can the BYP pin be left floating in the AP2210N-5.0TRG1 fixed-voltage configuration?
No. For the fixed 5.0V version, the BYP pin must be connected to a 100pF capacitor to ground to achieve specified 260nV/√Hz output noise and 75dB PSRR. Leaving it floating degrades noise performance and may cause instability under transient loads.
Does AP2210N-5.0TRG1 require an external current-limiting resistor on the EN pin?
No. The EN pin has CMOS/TTL-compatible input structure with leakage current ≤1µA and defined VIH/VIL thresholds. It can be driven directly from MCU GPIO without series resistance, provided the driving voltage stays within 0–13.2V absolute maximum ratings.
How does thermal shutdown behave during sustained overload conditions?
When junction temperature exceeds +150°C, the device enters thermal shutdown, disabling the pass element and reducing VOUT to near zero. It automatically recovers once TJ falls below +135°C hysteresis threshold, enabling fault-tolerant operation without manual reset.
AP2210N-5.0TRG1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- 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):
- 5V
- 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:
- -
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
AP2210N-5.0TRG1 FAQ
1.How can I place an order for AP2210N-5.0TRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2210N-5.0TRG1 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 AP2210N-5.0TRG1 reliable?
The price and inventory of AP2210N-5.0TRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2210N-5.0TRG1 is usually 5 days.
3.What payment methods are accepted for AP2210N-5.0TRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2210N-5.0TRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2210N-5.0TRG1?
AP2210N-5.0TRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2210N-5.0TRG1 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 AP2210N-5.0TRG1?
For technical support, including AP2210N-5.0TRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2210N-5.0TRG1 requirements.
6.How does Aetrix verify that AP2210N-5.0TRG1 is sourced from the original manufacturer or authorized distributors?
All AP2210N-5.0TRG1 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 AP2210N-5.0TRG1 meets industry standards.
7.What is the process for return or replacement of AP2210N-5.0TRG1?
All AP2210N-5.0TRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2210N-5.0TRG1, 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 AP2210N-5.0TRG1 part is unused and in its original packaging.
Return procedure for AP2210N-5.0TRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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