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Diodes Incorporated AP2210N-2.5TRE1
- Part No.:
- AP2210N-2.5TRE1
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AP2210N-2.5TRE1.pdf
- Description:
- IC REG LINEAR 2.5V 300MA SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,375
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Product details
Overview
AP2210N-2.5TRE1 from Diodes Incorporated is a 300mA ultra-low dropout (ULDO) linear regulator with fixed 2.5V output, 250mV typical dropout at full load, ±1% output voltage accuracy, 75dB PSRR at 100Hz, and 1µA maximum standby current. It operates from 2.5V to 13.2V input, features logic-compatible enable control, overcurrent/overtemperature/reverse-current protection, and targets RF power supply rails in handheld wireless devices.
For engineers reviewing the AP2210N-2.5TRE1 datasheet, AP2210N-2.5TRE1 pinout, AP2210N-2.5TRE1 application, or AP2210N-2.5TRE1 equivalent, key selection criteria include dropout performance under 300mA load, noise-sensitive LDO stability with 100pF BYP capacitor support, thermal shutdown behavior in SOT-23-5 layout, and compatibility with 2.5V core/logic rail requirements in space-constrained portable designs.
Technical Context
The AP2210N-2.5TRE1 uses a CMOS pass transistor architecture with bandgap reference and internal current limiting, enabling stable regulation down to 250mV VIN–VOUT differential at 300mA. Its feedback loop incorporates ESR-stable compensation for use with low-ESR ceramic capacitors (CIN = 1.0µF, COUT = 2.2µF).
It integrates independent logic-level enable (EN) with TTL/CMOS compatibility (VIH ≥ 2.0V, VIL ≤ 0.4V), thermal shutdown activation at TJ ≥ +150°C, and reverse-current blocking to prevent backfeed when VIN < VOUT. The BYP/ADJ pin supports either 100pF bypass for noise reduction (fixed version) or external resistor divider (adjustable version).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5V ±1% (ensures stable core voltage for 2.5V logic without external resistors) |
| Max Output Current | 300mA (supports moderate-power RF ICs or baseband processors) |
| Dropout Voltage | 250mV typ. at 300mA (enables operation from 2.75V input to sustain 2.5V output) |
| PSRR | 75dB at 100Hz (suppresses switching noise from upstream DC/DC converters) |
| Standby Current | 1µA max. (extends battery life during system sleep modes) |
| Operating Input Range | 2.5V to 13.2V (compatible with single-cell Li-ion, multi-cell alkaline, or intermediate DC bus) |
| Thermal Shutdown | Activates at TJ ≥ +150°C (prevents damage during sustained overload or poor PCB heat sinking) |
Pinout & Package
AP2210N-2.5TRE1 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 | Accepts 2.5V–13.2V unregulated input; requires 1.0µF ceramic decoupling close to pin |
| 2 (GND) | Ground Reference | Common return path for input/output currents and internal regulator circuitry |
| 3 (EN) | Enable Control | Active-high logic input (VIH ≥ 2.0V); pulls regulator into 1µA shutdown when low |
| 4 (BYP/ADJ) | Noise Filter / Adj Reference | Connect 100pF capacitor to GND for optimal noise performance (fixed 2.5V version) |
| 5 (VOUT) | Regulated Output | Delivers stable 2.5V ±1% to load; requires 2.2µF ceramic output capacitor for stability |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low Dropout | 250mV at 300mA enables use with minimal input headroom-critical for battery-powered RF stages |
| High PSRR | 75dB at 100Hz rejects ripple from noisy switchers, preserving signal integrity in transceiver bias rails |
| Reverse Current Protection | Blocks current flow from VOUT to VIN when input is removed or falls below output-prevents system backfeed |
| Logic-Compatible Enable | CMOS/TTL-level EN pin allows direct interfacing with microcontroller GPIOs without level-shifting |
| Thermal & Overcurrent Protection | Auto-recovering shutdown prevents permanent failure during short-circuit or thermal overload events |
Applications
| Cellular Handset RF Front-End | Wireless PDA Baseband Power |
|---|---|
Use Scenario: Supplies clean 2.5V bias to power amplifier driver stages and low-noise amplifiers in GSM/UMTS handsets. IC Role / Device Role / Timing Role: ULDO regulator providing noise-isolated, stable voltage to RF analog circuitry. Use Value: 75dB PSRR and 260nV/√Hz output noise minimize AM-to-PM distortion and phase noise degradation in transmit paths. |
Use Scenario: Powers 2.5V I/O and memory interfaces in palm-sized PDAs with intermittent connectivity. IC Role / Device Role / Timing Role: Low-quiescent-current LDO delivering regulated voltage during active and deep-sleep states. Use Value: 1µA shutdown current extends battery runtime between sync sessions without compromising wake-up responsiveness. |
| Bluetooth Audio Module Core Rail | Industrial Sensor Node MCU Supply |
Use Scenario: Provides 2.5V supply to Bluetooth SoC digital cores and ADC reference circuits in compact earbuds. IC Role / Device Role / Timing Role: Fixed-output LDO ensuring precise voltage for clock generation and analog-to-digital conversion. Use Value: ±1% output accuracy and 48ppm/°C tempco maintain timing margin and ADC linearity across -40°C to +85°C ambient. |
Use Scenario: Regulates battery-derived input to 2.5V for ultra-low-power microcontrollers in remote environmental sensors. IC Role / Device Role / Timing Role: High-stability LDO supporting precise sensor excitation and measurement cycles. Use Value: Tight load regulation (≤6mV from 0.1mA to 300mA) ensures consistent ADC reference and sensor bias under varying duty-cycle loads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output ULDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-2502E/TO | 250mA max output, 175mV dropout at 250mA, 65dB PSRR at 100Hz, no reverse-current protection | Limited to lower-current digital rails; unsuitable for RF analog stages requiring >250mA or backfeed isolation | Select when cost sensitivity outweighs RF noise performance and reverse-current blocking needs |
| Torex XC6206P252MR-G | 300mA output, 300mV dropout at 300mA, 70dB PSRR at 100Hz, 2.5V ±2% accuracy, no enable pin | Lacks logic-controlled shutdown-requires external FET for power gating; less accurate for precision analog rails | Choose only if board space prohibits SOT-23-5 or enable functionality is unnecessary |
Compared with MCP1700-2502E/TO and XC6206P252MR-G, AP2210N-2.5TRE1 delivers superior RF-grade noise rejection, guaranteed reverse-current blocking, and tighter output accuracy-making it the preferred choice for battery-powered, noise-sensitive 2.5V analog power domains where reliability and signal fidelity are critical.
Availability
AP2210N-2.5TRE1 is available at Aetrix Electronics and suitable for cellular handset RF front-end design, Bluetooth audio module development, industrial sensor node production, and other applications requiring stable component supply with tight parametric consistency and long-term manufacturability.
Supply support for AP2210N-2.5TRE1 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 automotive markets.
The AP2210 series belongs to Diodes' ultra-low-noise LDO portfolio, engineered specifically for RF and portable electronics where minimal dropout, high PSRR, and sub-µA quiescent current are essential to preserve battery life and signal integrity.
FAQ
What is the minimum input voltage required for AP2210N-2.5TRE1 to maintain regulation?
The minimum input voltage is 2.75V, calculated as VOUT + VDROP = 2.5V + 0.25V (typical dropout at 300mA). Operation below this threshold causes output voltage collapse. For robust PSRR and thermal margin, Diodes recommends VIN ≥ VOUT + 1V (i.e., ≥3.5V) across the full operating temperature range.
Can AP2210N-2.5TRE1 be used with ceramic output capacitors only?
Yes-AP2210N-2.5TRE1 is ESR-stable and fully compatible with low-ESR ceramic capacitors. The datasheet specifies COUT = 2.2µF X5R/X7R ceramic with ≤10mΩ ESR. No tantalum or aluminum electrolytic capacitors are required, simplifying layout and improving reliability.
Does the BYP/ADJ pin require external components for the fixed 2.5V version?
Yes-the BYP/ADJ pin must be connected to a 100pF capacitor to ground for optimal noise performance. This capacitor reduces output voltage noise to 260nV/√Hz and enhances PSRR. Omitting it degrades high-frequency noise rejection and may increase ripple susceptibility in RF-sensitive applications.
How does thermal shutdown behave during continuous overload?
When junction temperature exceeds +150°C, the device enters thermal shutdown, disabling the pass transistor and reducing output current to near zero. It automatically recovers once TJ falls below +135°C (typical hysteresis). This cycle repeats until fault condition clears, preventing permanent damage without requiring external reset circuitry.
AP2210N-2.5TRE1 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):
- 2.5V
- 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-2.5TRE1 FAQ
1.How can I place an order for AP2210N-2.5TRE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2210N-2.5TRE1 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-2.5TRE1 reliable?
The price and inventory of AP2210N-2.5TRE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2210N-2.5TRE1 is usually 5 days.
3.What payment methods are accepted for AP2210N-2.5TRE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2210N-2.5TRE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2210N-2.5TRE1?
AP2210N-2.5TRE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2210N-2.5TRE1 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-2.5TRE1?
For technical support, including AP2210N-2.5TRE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2210N-2.5TRE1 requirements.
6.How does Aetrix verify that AP2210N-2.5TRE1 is sourced from the original manufacturer or authorized distributors?
All AP2210N-2.5TRE1 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-2.5TRE1 meets industry standards.
7.What is the process for return or replacement of AP2210N-2.5TRE1?
All AP2210N-2.5TRE1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2210N-2.5TRE1, 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-2.5TRE1 part is unused and in its original packaging.
Return procedure for AP2210N-2.5TRE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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