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Diodes Incorporated AP2210K-3.3TRE1
- Part No.:
- AP2210K-3.3TRE1
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP2210K-3.3TRE1.pdf
- Description:
- IC REG LINEAR 3.3V 300MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:8,893
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Product details
Overview
AP2210K-3.3TRE1 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. It delivers low-noise power for RF front-end circuits, cellular handset basebands, and portable wireless communicators requiring stable, clean 3.3V supply under battery-varying input conditions.
For engineers reviewing the AP2210K-3.3TRE1 datasheet, AP2210K-3.3TRE1 pinout, AP2210K-3.3TRE1 application, or AP2210K-3.3TRE1 equivalent, key selection criteria include dropout performance at 300mA, shutdown current ≤1µA, thermal protection behavior, SOT-23-5 pin compatibility, and noise-sensitive LDO validation in 3.3V rail designs.
Technical Context
The AP2210K-3.3TRE1 uses a PMOS pass transistor architecture enabling ultra-low dropout and reverse current blocking without external diode. Its bandgap reference and error amplifier deliver tight line/load regulation (≤4.5mV/≤6mV) across -40°C to +125°C junction temperature.
Internal CMOS/TTL-compatible enable logic controls shutdown mode with <1µA standby current; the BYP/ADJ pin accepts a 100pF capacitor to reduce output noise to 260nV/√Hz while maintaining stability with 2.2µF ceramic output capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3V ±1% over -40°C to +125°C - ensures reliable logic-level compliance for 3.3V I/O interfaces. |
| Dropout Voltage | 250mV typ. at 300mA - enables operation from 3.55V input (e.g., single Li-ion cell at end-of-discharge). |
| PSRR | 75dB at 100Hz - suppresses switching noise from upstream DC-DC converters feeding noisy battery rails. |
| Standby Current | ≤1µA max. in shutdown - extends battery life in always-on wireless sensor nodes and standby modes. |
| Thermal Protection | Internally limited junction temperature (150°C) with automatic recovery - prevents latch-up during transient overload. |
| Output Noise | 260nV/√Hz with 100pF BYP capacitor - meets RF IC supply noise requirements for GSM/UMTS transceivers. |
| Enable Threshold | VIH = 2.0V min., VIL = 0.4V max. - compatible with 1.8V/3.3V GPIOs without level-shifting. |
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 input; minimum 3.55V required for 300mA 3.3V output due to 250mV dropout. |
| 2 (GND) | Ground reference | Low-impedance return path for load and quiescent current; must be connected before EN/VOUT for safe startup. |
| 3 (EN) | Enable control input | CMOS/TTL-compatible; high ≥2.0V enables regulator, low ≤0.4V disables output and reduces ISTD to ≤1µA. |
| 4 (BYP/ADJ) | Bypass capacitor terminal | Connects 100pF capacitor to GND to reduce output noise; not used as ADJ in fixed 3.3V version. |
| 5 (VOUT) | Regulated output | Delivers up to 300mA at 3.3V ±1%; requires ≥2.2µF ceramic output capacitor for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low Dropout | 250mV at 300mA enables use with single-cell Li-ion (3.0–4.2V) and legacy 5V rails down to 3.55V. |
| Reverse Current Protection | PMOS pass element blocks reverse current flow when VIN < VOUT - eliminates need for external blocking diode. |
| Low-Noise Operation | 260nV/√Hz output noise with 100pF BYP capacitor supports RF power amplifiers and ADC reference supplies. |
| Overtemperature Shutdown | Thermal foldback activates at ~150°C junction temperature and recovers automatically upon cooling - no latch-up risk. |
| High PSRR at Low Frequency | 75dB rejection at 100Hz suppresses ripple from buck converter switching frequencies and battery impedance peaks. |
Applications
| Cellular Handset Baseband | Wi-Fi/Bluetooth SoC Power Rail |
|---|---|
|
Use Scenario: Powering 3.3V analog and digital sections of baseband processors in dual-SIM smartphones with dynamic load currents up to 300mA. IC Role / Device Role / Timing Role: Primary LDO for noise-sensitive RF interface and audio codec blocks, decoupled from noisy system DC-DC outputs. Use Value: 250mV dropout allows uninterrupted operation during Li-ion discharge from 4.2V to 3.55V; 75dB PSRR isolates baseband from PMIC switching noise. |
Use Scenario: Supplying 3.3V to Wi-Fi 6/Bluetooth 5.2 combo modules in portable IoT gateways where EMI must meet FCC Class B limits. IC Role / Device Role / Timing Role: Clean post-regulator for RF transceiver VDDIO and crystal oscillator circuitry. Use Value: 260nV/√Hz noise floor prevents reciprocal mixing in 2.4GHz receivers; 1µA shutdown current extends battery runtime in sleep mode. |
| Industrial Wireless Sensor Node | Automotive Telematics Module |
|
Use Scenario: Providing regulated 3.3V to LoRaWAN transceivers and microcontrollers in battery-powered environmental monitoring nodes operating at -40°C to +85°C. IC Role / Device Role / Timing Role: Main power regulator with enable control synchronized to MCU wake-up cycles. Use Value: ±1% output accuracy ensures consistent ADC reference and RF output power calibration; thermal shutdown protects against enclosure overheating. |
Use Scenario: Powering GPS/GNSS receiver front-end and CAN controller interface in automotive infotainment head units with 12V battery input. IC Role / Device Role / Timing Role: Secondary LDO for RF section isolated from engine cranking transients on main 5V rail. Use Value: Reverse current protection prevents backfeed into failed upstream regulators; 125°C max operating junction temperature supports under-dash mounting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low dropout LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-3302E/TO (Microchip) | 250mA output, 600mV dropout at 250mA, 65dB PSRR at 100Hz, no BYP pin | Lacks bypass capacitor option for noise reduction; lower current rating limits use in high-pulse RF loads | Select only if 250mA suffices and noise below 260nV/√Hz is not required |
| TLS850B2LFV50 (Infineon) | 500mA output, 200mV dropout at 500mA, integrated watchdog and reset, AEC-Q100 qualified | Automotive-grade with functional safety features; larger TSON-10 package increases board area | Prefer for automotive production; avoid for cost-sensitive consumer RF designs due to qualification overhead |
Compared with MCP1700-3302E/TO, AP2210K-3.3TRE1 delivers 20% higher current and superior noise suppression; versus TLS850B2LFV50, it offers smaller footprint and lower cost but lacks automotive qualification and system monitoring functions.
Availability
AP2210K-3.3TRE1 is available at Aetrix Electronics and suitable for cellular handset power management, wireless SoC supply regulation, and industrial sensor node LDO applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for AP2210K-3.3TRE1 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 for industrial, computing, and communications markets.
The AP2210 series belongs to Diodes' precision ULDO regulator product line, designed specifically for noise-critical battery-powered RF and portable electronics where dropout, PSRR, and standby current are primary constraints.
FAQ
What is the minimum input voltage required for AP2210K-3.3TRE1 to maintain regulation at 300mA?
The minimum input voltage is 3.55V, calculated as VOUT + VDROP = 3.3V + 0.25V. Below this, output voltage drops >1% at +25°C. For robust design margin, Diodes recommends VIN ≥ 4.3V (VOUT + 1V) to ensure full PSRR performance and thermal headroom across temperature.
Can AP2210K-3.3TRE1 be used with ceramic output capacitors?
Yes - the device is optimized for 2.2µF X5R/X7R ceramic capacitors with ESR <100mΩ. Stability is guaranteed per datasheet Figure 11; no additional series resistance is needed. Avoid tantalum or aluminum electrolytics due to ESR and lifetime limitations in portable applications.
Does AP2210K-3.3TRE1 require a bypass capacitor on the BYP pin?
Yes - a 100pF capacitor between BYP (pin 4) and GND is mandatory to achieve the specified 260nV/√Hz output noise. Omitting it degrades noise performance by >10× and may affect PSRR above 10kHz. The capacitor must be placed within 2mm of the pin with short, low-inductance traces.
How does thermal shutdown behave during sustained overload?
When junction temperature exceeds ~150°C, the device enters thermal shutdown, disabling output and reducing ground current to ~100µA. It automatically resumes regulation once TJ falls below ~135°C (typical hysteresis). This cycle repeats until fault condition clears - no manual reset is required.
AP2210K-3.3TRE1 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-3.3TRE1 FAQ
1.How can I place an order for AP2210K-3.3TRE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2210K-3.3TRE1 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-3.3TRE1 reliable?
The price and inventory of AP2210K-3.3TRE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2210K-3.3TRE1 is usually 5 days.
3.What payment methods are accepted for AP2210K-3.3TRE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2210K-3.3TRE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2210K-3.3TRE1?
AP2210K-3.3TRE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2210K-3.3TRE1 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-3.3TRE1?
For technical support, including AP2210K-3.3TRE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2210K-3.3TRE1 requirements.
6.How does Aetrix verify that AP2210K-3.3TRE1 is sourced from the original manufacturer or authorized distributors?
All AP2210K-3.3TRE1 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-3.3TRE1 meets industry standards.
7.What is the process for return or replacement of AP2210K-3.3TRE1?
All AP2210K-3.3TRE1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2210K-3.3TRE1, 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-3.3TRE1 part is unused and in its original packaging.
Return procedure for AP2210K-3.3TRE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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