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Diodes Incorporated AP2210K-2.8TRE1
- Part No.:
- AP2210K-2.8TRE1
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP2210K-2.8TRE1.pdf
- Description:
- IC REG LINEAR 2.8V 300MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,130
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Product details
Overview
AP2210K-2.8TRE1 from Diodes Incorporated is a 300mA ultra-low dropout (ULDO) linear regulator with fixed 2.8V 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, reverse current protection, and thermal/overcurrent protection-designed for noise-sensitive RF power rails in portable battery-powered systems.
For engineers reviewing the AP2210K-2.8TRE1 datasheet, AP2210K-2.8TRE1 pinout, AP2210K-2.8TRE1 application, or AP2210K-2.8TRE1 equivalent, key selection criteria include dropout performance under 300mA load, low-noise operation with BYP capacitor support, thermal shutdown behavior in SOT-23-5 layout, and compatibility with 2.8V core/logic domains in space-constrained handheld devices.
Technical Context
The AP2210K-2.8TRE1 uses a PNP pass transistor architecture enabling ultra-low dropout while maintaining stability with small ceramic output capacitors (≥2.2µF). Its bandgap reference and error amplifier deliver tight line/load regulation (≤4.5mV and ≤6mV respectively) across -40°C to +125°C junction temperature.
Internal circuitry integrates CMOS/TTL-compatible enable input, thermal foldback, and current-limiting that activates at 450–900mA. The BYP/ADJ pin supports either bypass capacitor connection for noise reduction (fixed version) or external resistor divider (adjustable version), though AP2210K-2.8TRE1 implements the fixed 2.8V configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8V ±1% - ensures stable supply for 2.8V RF transceivers and baseband ICs without external feedback. |
| Max Output Current | 300mA - sufficient for powering single-band cellular front-end modules or low-power MCU cores. |
| Dropout Voltage | 250mV typ. at 300mA - enables operation from 3.05V input, critical for Li-ion battery discharge down to 3.2V. |
| PSRR | 75dB at 100Hz - suppresses switching noise from adjacent DC-DC converters feeding noisy system rails. |
| Standby Current | 1µA max - extends battery life during sleep modes in always-on wireless sensors or IoT endpoints. |
| Operating Input Range | 2.5V to 13.2V - accommodates single-cell Li-ion (2.7–4.2V), dual-cell alkaline, or intermediate system rails. |
| Thermal Protection | Junction shutdown at +150°C - prevents damage during sustained overload or poor PCB thermal design. |
Pinout & Package
SOT-23-5 package: 1.3mm × 2.9mm × 1.0mm body, matte tin-plated leads, moisture sensitivity level 3 per J-STD-020, RoHS and halogen-free compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Input supply connection | Accepts 2.5–13.2V; requires ≥1.0µF ceramic input capacitor close to pin for stability. |
| 2 (GND) | Ground reference | Low-impedance return path for regulator quiescent current and load current; must connect to solid ground plane. |
| 3 (EN) | Enable control input | CMOS/TTL compatible; high ≥2.0V enables regulation, low ≤0.4V places device in 1µA shutdown mode. |
| 4 (BYP/ADJ) | Noise reduction / adjustment node | Connect 100pF capacitor to GND to reduce output noise; not used for voltage setting in fixed 2.8V version. |
| 5 (VOUT) | Regulated output | Delivers 2.8V ±1% to load; requires ≥2.2µF ceramic output capacitor with ESR <100mΩ for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low Dropout | 250mV at 300mA enables >90% efficiency from 3.05V input-critical for battery runtime in portable RF systems. |
| High PSRR & Low Noise | 75dB PSRR at 100Hz and 260nV/√Hz output noise ensure clean supply for sensitive RF receivers and PLLs. |
| Logic-Controlled Enable | CMOS/TTL-compatible EN pin allows precise power sequencing with microcontrollers or PMICs without level-shifting. |
| Integrated Protections | Thermal shutdown, overcurrent limit (450–900mA), and reverse current blocking prevent fault propagation in shared-rail systems. |
| Small-Signal Stability | Stable with 2.2µF ceramic output capacitor-eliminates need for large, costly tantalum or electrolytic capacitors. |
Applications
| Cellular Front-End Module Power | Bluetooth/Wi-Fi SoC Core Supply |
|---|---|
|
Use Scenario: Powering RF power amplifier bias and LNA stages in 4G LTE handsets operating from single-cell Li-ion. IC Role / Device Role / Timing Role: ULDO regulator providing ultra-clean 2.8V rail isolated from noisy system DC-DC outputs. Use Value: 250mV dropout preserves headroom during battery discharge; 75dB PSRR prevents AM modulation of transmitted signal. |
Use Scenario: Supplying 2.8V core voltage to Bluetooth 5.0 or Wi-Fi 4/5 SoCs in wearables and smart home sensors. IC Role / Device Role / Timing Role: Primary low-noise linear regulator enabling deep-sleep current <1µA via EN-controlled shutdown. Use Value: 1µA max standby current extends multi-year battery life; ±1% accuracy maintains digital logic timing margins. |
| Portable Medical Sensor Analog Rail | Industrial Handheld Terminal Baseband |
|
Use Scenario: Delivering stable 2.8V to precision ADCs, op-amps, and analog front-ends in FDA-cleared pulse oximeters. IC Role / Device Role / Timing Role: Low-noise analog supply regulator with reverse current protection preventing backfeed into sensor signal chains. Use Value: 260nV/√Hz output noise avoids SNR degradation in 24-bit medical ADCs; thermal shutdown ensures safety compliance. |
Use Scenario: Powering 2.8V FPGA I/O banks and ARM Cortex-A53 subsystems in ruggedized barcode scanners and field meters. IC Role / Device Role / Timing Role: Robust system-level LDO with overtemperature and overcurrent protection for unattended industrial deployments. Use Value: 13.2V max input supports wide-input industrial adapters; SOT-23-5 package withstands mechanical shock and thermal cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ULDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-2802E/TT | 250mA max output, 600mV dropout at 250mA, no enable pin, 6µA quiescent current | Lacks EN control and reverse current protection; limited to simpler, non-sequenced systems | Choose when board space is tighter (SOT-23-3) and enable functionality is unnecessary. |
| Torex XC6219B282MR-G | 300mA output, 220mV dropout at 300mA, 1µA standby, but only SOT-25 package (5-pin, different pinout) | Same electrical specs but incompatible pin mapping-requires PCB redesign for BYP/EN/VOUT routing | Choose only if existing layout accommodates Torex's pin assignment and qualification for automotive AEC-Q100 is required. |
Compared with MCP1700T-2802E/TT, AP2210K-2.8TRE1 delivers 20% higher current and integrated enable/shutdown control; versus XC6219B282MR-G, it offers identical performance with Diodes' validated SOT-23-5 footprint and broader industrial temperature support.
Availability
AP2210K-2.8TRE1 is available at Aetrix Electronics and suitable for cellular handset power management, portable medical sensor analog rails, and industrial handheld terminal baseband supplies requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AP2210K-2.8TRE1 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 consumer markets.
The AP2210 product line targets battery-powered and noise-sensitive applications requiring ultra-low dropout, high PSRR, and robust protection-optimized for RF front-ends, portable medical devices, and compact embedded systems.
FAQ
What is the minimum input voltage required for AP2210K-2.8TRE1 to maintain regulation at 300mA?
The minimum input voltage is VOUT + VDROP = 2.8V + 0.25V = 3.05V at +25°C. However, Diodes recommends VIN ≥ VOUT + 1V (i.e., ≥3.8V) to ensure full PSRR performance and avoid degradation under load transients or temperature variation.
Can AP2210K-2.8TRE1 be used without the BYP capacitor?
Yes, the BYP/ADJ pin may be left unconnected in fixed-output configurations, but omitting the 100pF capacitor reduces PSRR by up to 15dB at 10kHz–1MHz and increases output noise-critical for RF applications where spectral purity matters.
Does AP2210K-2.8TRE1 support reverse current protection during shutdown?
Yes, the device includes internal reverse current blocking. When EN = low and VIN < VOUT, the pass element remains off, preventing current flow from VOUT back into VIN-essential for systems with multiple power domains sharing common grounds.
Is AP2210K-2.8TRE1 qualified for automotive applications?
No-AP2210K-2.8TRE1 is rated for industrial temperature range (−40°C to +125°C) but is not AEC-Q100 qualified. Diodes offers automotive-grade variants (e.g., AP2210Q series) with PPAP documentation and IATF 16949 manufacturing certification for vehicle applications.
AP2210K-2.8TRE1 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-2.8TRE1 FAQ
1.How can I place an order for AP2210K-2.8TRE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2210K-2.8TRE1 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-2.8TRE1 reliable?
The price and inventory of AP2210K-2.8TRE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2210K-2.8TRE1 is usually 5 days.
3.What payment methods are accepted for AP2210K-2.8TRE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2210K-2.8TRE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2210K-2.8TRE1?
AP2210K-2.8TRE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2210K-2.8TRE1 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-2.8TRE1?
For technical support, including AP2210K-2.8TRE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2210K-2.8TRE1 requirements.
6.How does Aetrix verify that AP2210K-2.8TRE1 is sourced from the original manufacturer or authorized distributors?
All AP2210K-2.8TRE1 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-2.8TRE1 meets industry standards.
7.What is the process for return or replacement of AP2210K-2.8TRE1?
All AP2210K-2.8TRE1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2210K-2.8TRE1, 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-2.8TRE1 part is unused and in its original packaging.
Return procedure for AP2210K-2.8TRE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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