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Diodes Incorporated AP2204R-2.5TRG1
- Part No.:
- AP2204R-2.5TRG1
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-243AA
- Datasheet:
-
AP2204R-2.5TRG1.pdf
- Description:
- IC REG LINEAR 2.5V 150MA SOT89-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,030
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Product details
Overview
AP2204R-2.5TRG1 from Diodes Incorporated is a fixed-output 2.5V ultra-low dropout (ULDO) linear regulator in SOT-89 package, designed for space-constrained portable electronics. It delivers up to 150mA output current with 100mV dropout at 100µA load, 60dB PSRR at 1kHz, ±2% output voltage accuracy, and operates across 2.6V–24V input range-ideal for USB-powered instrumentation and battery-backed subsystems.
For engineers reviewing the AP2204R-2.5TRG1 datasheet, AP2204R-2.5TRG1 pinout, AP2204R-2.5TRG1 application, or AP2204R-2.5TRG1 equivalent, key selection criteria include dropout behavior under light-load conditions, thermal performance in SOT-89 Option 1 layout, compatibility with ceramic output capacitors, and enable-input logic thresholds for power sequencing control.
Technical Context
The AP2204R-2.5TRG1 integrates a precision 1.24V bandgap reference, error amplifier, resistor feedback network, current-limit protection, and chip-enable circuitry-all fabricated using high-voltage EPNP process. Its internal architecture enables stable regulation down to 100mV headroom while maintaining low ground current (20µA no-load) and low noise (30µVrms).
It features thermal shutdown, excellent line/load regulation (<0.05% and <0.5% respectively), and supports operation from –40°C to +125°C junction temperature. The SOT-89 Option 1 pinout places VIN on Pin 1 and GND on Pins 2 & 3, with VOUT on Pin 3-requiring exposed pad connection to GND per Note 4 for optimal thermal dissipation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5V ±2% - ensures stable rail for 2.5V logic, ADC references, and sensor biasing without external resistors. |
| Input Voltage Range | 2.6V to 24V - supports wide-source applications including automotive accessory rails, industrial 12/24V systems, and multi-cell battery packs. |
| Dropout Voltage | 100mV @ 100µA - enables regulation even when input falls to 2.6V, critical for battery end-of-life operation. |
| PSRR | 60dB @ 1kHz - suppresses switching noise from upstream DC/DC converters feeding sensitive analog circuits. |
| Quiescent Current | 20µA @ no load - extends runtime in always-on monitoring nodes and low-power IoT endpoints. |
| Thermal Resistance θJA | 165°C/W (SOT-89) - requires minimum 1.5cm² copper pour under exposed pad to sustain 150mA at +85°C ambient. |
| Enable Threshold | VEN(HI) ≥2.0V, VEN(LO) ≤0.4V - compatible with 1.8V/3.3V GPIO for controlled power-up sequencing. |
Pinout & Package
SOT-89 (Option 1) package with exposed thermal pad connected to GND (per Note 4). Compact 4.6mm × 2.6mm footprint, 1.6mm height, suitable for high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VIN | Main input supply connection; must be decoupled with ≥1.0µF ceramic capacitor near pin. |
| 2 | GND | Power ground reference; tied to exposed pad for thermal conduction and noise reduction. |
| 3 | VOUT | Regulated 2.5V output; requires ≥2.2µF low-ESR ceramic capacitor for stability and transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 20µA no-load ground current enables >1-year battery life in coin-cell–powered sensors. |
| Ceramic capacitor compatible | Stable with 2.2µF X5R/X7R ceramics - eliminates need for costly tantalum or electrolytic output caps. |
| High accuracy output | ±2% over –40°C to +125°C - reduces calibration overhead in precision data acquisition front-ends. |
| Integrated enable function | Logic-level EN pin allows microcontroller-controlled power gating with sub-1µA standby current. |
| Robust protection suite | Current limit + thermal shutdown prevent damage during short-circuit or overload events in unattended systems. |
Applications
| Portable Medical Sensors | USB-Powered Test Equipment |
|---|---|
|
Use Scenario: Continuous glucose monitor with BLE radio and analog front-end. IC Role / Device Role / Timing Role: Supplies clean 2.5V reference to 16-bit ADC and bias voltage to electrochemical sensor interface. Use Value: 30µVrms output noise and 60dB PSRR preserve SNR in µV-level sensor signals; 100mV dropout extends usable battery range by 12% versus standard LDOs. |
Use Scenario: Handheld oscilloscope probe powered via USB 5V bus. IC Role / Device Role / Timing Role: Generates isolated 2.5V rail for high-speed comparator and FPGA I/O bank from noisy USB-derived 5V. Use Value: Low ground current minimizes USB port loading; enable pin synchronizes power-up with host enumeration to avoid enumeration failures. |
| Industrial Data Loggers | Automotive Cabin Controllers |
|
Use Scenario: Battery-backed environmental logger operating across –40°C to +85°C. IC Role / Device Role / Timing Role: Powers real-time clock, flash memory, and low-power MCU core from LiSOCl₂ cell (3.6V nominal). Use Value: Wide 2.6V–24V input range accommodates cell voltage decay to 2.7V; ±2% accuracy ensures RTC timing drift remains <1ppm over temperature. |
Use Scenario: HVAC control module powered from vehicle 12V rail with load-dump transients. IC Role / Device Role / Timing Role: Provides regulated 2.5V for microcontroller ADC reference and CAN transceiver bias under varying battery conditions. Use Value: 38V absolute max input rating withstands ISO 7637-2 pulse 1/5a; thermal shutdown prevents latch-up during sustained overtemperature events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ULDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-2502E/TT | 250mA rated, 175mV dropout @ 250mA, 3.5µA IQ, SOT-23-3 package | Lacks enable pin and thermal shutdown; lower max input (13.2V) | Choose for cost-sensitive, low-current (<100mA), non-sequenced applications where footprint is primary constraint. |
| TPS7A2025PDQNR | 300mA rated, 130mV dropout @ 300mA, 6.5µA IQ, WSON-6 package | Higher PSRR (75dB @ 1kHz), integrated soft-start, AEC-Q100 Grade 2 qualified | Choose for automotive-grade designs requiring higher current, better noise rejection, or qualification compliance. |
Compared with MCP1700T-2502E/TT, AP2204R-2.5TRG1 offers enable control and thermal protection at lower cost; versus TPS7A2025PDQNR, it trades PSRR and qualification for wider input range (24V vs 6V) and lower price in non-automotive use cases.
Availability
AP2204R-2.5TRG1 is available at Aetrix Electronics and suitable for portable medical sensors, USB-powered test equipment, and industrial data loggers requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for AP2204R-2.5TRG1 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 ICs, with manufacturing certified to IATF 16949 and product lines compliant with RoHS, REACH, and halogen-free standards.
The AP2204 series belongs to Diodes' high-voltage ULDO regulator product line, engineered specifically for battery-powered and wide-input industrial applications demanding low dropout, low noise, and robust thermal performance in compact packages.
FAQ
What is the recommended input capacitor for AP2204R-2.5TRG1?
A minimum 1.0µF X5R/X7R ceramic capacitor placed within 2mm of the VIN and GND pins is required for stability and transient response. Larger values (e.g., 4.7µF) improve ripple rejection but do not affect regulation-no ESR requirements apply due to internal compensation.
Can AP2204R-2.5TRG1 be used with a 2.7V lithium-thionyl chloride battery?
Yes. With a minimum input of 2.6V and 100mV dropout at light loads, AP2204R-2.5TRG1 regulates reliably down to 2.6V-fully supporting LiSOCl₂ cells that discharge from 3.6V to ~2.7V, extending usable battery capacity by preserving operation through end-of-life voltage.
Is the exposed pad on the SOT-89 package electrically connected?
Yes-the exposed pad is internally connected to GND (per Note 4). It must be soldered to a dedicated GND plane with ≥4 thermal vias (0.3mm diameter) to achieve the specified θJA = 165°C/W and prevent thermal shutdown at full 150mA load in +85°C ambient.
Does AP2204R-2.5TRG1 require an output capacitor for stability?
Yes. A minimum 2.2µF X5R/X7R ceramic capacitor is mandatory at the VOUT pin, placed adjacent to the device. This capacitor provides loop stability, improves load-transient response, and reduces output noise-omitting it causes oscillation and regulation failure.
AP2204R-2.5TRG1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-243AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 24V
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 50 µA
- Current - Supply (Max):
- 2.5 mA
- PSRR:
- 60dB (100Hz ~ 1kHz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89-3
AP2204R-2.5TRG1 FAQ
1.How can I place an order for AP2204R-2.5TRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2204R-2.5TRG1 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 AP2204R-2.5TRG1 reliable?
The price and inventory of AP2204R-2.5TRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2204R-2.5TRG1 is usually 5 days.
3.What payment methods are accepted for AP2204R-2.5TRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2204R-2.5TRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2204R-2.5TRG1?
AP2204R-2.5TRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2204R-2.5TRG1 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 AP2204R-2.5TRG1?
For technical support, including AP2204R-2.5TRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2204R-2.5TRG1 requirements.
6.How does Aetrix verify that AP2204R-2.5TRG1 is sourced from the original manufacturer or authorized distributors?
All AP2204R-2.5TRG1 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 AP2204R-2.5TRG1 meets industry standards.
7.What is the process for return or replacement of AP2204R-2.5TRG1?
All AP2204R-2.5TRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2204R-2.5TRG1, 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 AP2204R-2.5TRG1 part is unused and in its original packaging.
Return procedure for AP2204R-2.5TRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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