Diodes Incorporated AP2204R-5.0TRG1
- Part No.:
- AP2204R-5.0TRG1
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-243AA
- Datasheet:
-
AP2204R-5.0TRG1.pdf
- Description:
- IC REG LINEAR 5V 150MA SOT89-3
- Quantity:
- Payment:

- Shipping:

Inventory:1,564
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Product details
Overview
AP2204R-5.0TRG1 from Diodes Incorporated is a fixed-output 5.0V ultra-low dropout (ULDO) linear regulator in SOT-89 package, designed for space-constrained portable systems. 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 microcontroller rails.
For engineers reviewing the AP2204R-5.0TRG1 datasheet, AP2204R-5.0TRG1 pinout, AP2204R-5.0TRG1 application, or AP2204R-5.0TRG1 equivalent, key selection criteria include dropout performance under light-load conditions, thermal dissipation capability in SOT-89, compatibility with ceramic output capacitors, and enable-input logic thresholds for power sequencing control.
Technical Context
The AP2204R-5.0TRG1 integrates a precision 1.24V bandgap reference, error amplifier, resistor network for fixed 5.0V output, current-limit protection, thermal shutdown, and an active-high enable circuit. Its EPNP-based architecture enables stable regulation down to 2.6V input while maintaining low ground current across load and temperature.
It features internal compensation optimized for low-ESR ceramic capacitors (1.0µF input / 2.2µF output), supports operation from –40°C to +125°C junction temperature, and exhibits ±100ppm/°C output voltage drift-critical for precision analog subsystems powered from variable-input sources like multi-cell batteries or unregulated adapters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0V ±2% - ensures stable MCU core/peripheral rail without external feedback components. |
| Input Voltage Range | 2.6V to 24V - supports single Li-ion to 24V industrial supplies without pre-regulation. |
| Max Output Current | 150mA - sufficient for low-power microcontrollers, sensors, and interface ICs. |
| Dropout Voltage | 100mV @ 100µA - enables regulation even when VIN drops to 5.1V, extending battery runtime. |
| PSRR | 60dB @ 1kHz - suppresses switching noise from upstream DC-DC converters feeding the LDO. |
| Quiescent Current | 20µA @ zero load - minimizes standby power loss in always-on monitoring circuits. |
| Enable Threshold | VEN(HI) = 2.0V min, VEN(LO) = 0.4V max - compatible with 3.3V and 5V GPIO control signals. |
Pinout & Package
SOT-89 package (Option 1): 3-pin surface-mount outline with exposed pad thermally connected to GND. Compact footprint (4.6mm × 2.6mm) and 165°C/W θJA enable moderate power dissipation without heatsinking in handheld designs.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VIN | Main input supply connection; accepts 2.6V–24V; requires 1.0µF ceramic bypass capacitor. |
| 2 | VOUT | Regulated 5.0V output; drives load and 2.2µF ceramic output capacitor for stability. |
| 3 | GND | Power and signal ground; must be tied to exposed pad for thermal and electrical integrity. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 20µA at zero load - extends battery life in sleep-mode IoT endpoints. |
| Ceramic capacitor compatibility | Stable with 2.2µF X5R/X7R output cap - eliminates need for costly tantalum or electrolytic types. |
| Thermal shutdown protection | Activates at +150°C junction - prevents damage during sustained overload or poor PCB layout. |
| High PSRR at audio frequencies | 60dB @ 1kHz - maintains clean 5V rail for ADC references and op-amp biasing. |
| Low-noise output | 30µVRMS (10Hz–100kHz) - avoids interference in sensitive analog front-ends. |
Applications
| USB-Powered Test Equipment | Industrial Sensor Node |
|---|---|
Use Scenario: Portable multimeter or data logger powered via USB 5V bus with internal 3.3V microcontroller and analog front-end. IC Role / Device Role / Timing Role: Primary 5V-to-3.3V conversion stage delivering clean, regulated supply to MCU and precision ADC. Use Value: 100mV dropout allows full regulation down to USB port voltage sag (to ~4.75V), while 30µVRMS noise preserves measurement resolution. |
Use Scenario: Battery-operated temperature/humidity sensor node transmitting via LoRaWAN with intermittent wake-up cycles. IC Role / Device Role / Timing Role: Always-on 5V rail for real-time clock and wake-up controller; switched 3.3V rail derived downstream. Use Value: 20µA quiescent current minimizes self-discharge during 99% sleep time, enabling >5-year battery life on two AA cells. |
| Medical Wearable Monitor | Automotive Body Control Module |
Use Scenario: ECG patch with low-power analog signal chain, BLE radio, and rechargeable LiPo battery. IC Role / Device Role / Timing Role: Post-regulator after buck converter, supplying ultra-low-noise 5V to op-amps and reference buffers. Use Value: 60dB PSRR rejects switching ripple from primary DC-DC, preventing beat frequencies in bio-signal amplification. |
Use Scenario: Dashboard cluster sub-module powered from 12V vehicle bus, requiring robust 5V rail for microcontroller and CAN transceiver. IC Role / Device Role / Timing Role: Secondary regulator providing fault-tolerant 5V supply with thermal shutdown and wide input range. Use Value: 24V absolute max rating and –40°C to +125°C operation ensure reliability across cold cranking and engine bay thermal extremes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ULDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-5002E/TT | 250mA rated, 175mV dropout @ 250mA, 3.5µA IQ, SOT-23-3 (no EN) | Lacks enable pin and thermal shutdown; lower max current but superior IQ for ultra-low-power sleep modes | Select when enable control and overtemperature protection are not required, and load current stays below 150mA. |
| TPS7A2050PDBVR | 300mA rated, 170mV dropout @ 300mA, 6.5µA IQ, SOT-23-5 (EN pin included) | Higher current capability and lower IQ, but requires minimum 1µF ceramic output capacitance with specific ESR range | Prefer when higher output current headroom or tighter IQ budget is needed, and board layout accommodates SOT-23-5 footprint. |
Compared with MCP1700T-5002E/TT and TPS7A2050PDBVR, the AP2204R-5.0TRG1 offers balanced trade-offs: integrated enable and thermal protection in compact SOT-89, moderate IQ, and proven stability with minimal external components-making it optimal for cost-sensitive, thermally constrained portable designs where 150mA suffices.
Availability
AP2204R-5.0TRG1 is available at Aetrix Electronics and suitable for USB-powered instrumentation, battery-backed sensor nodes, medical wearables, and automotive body electronics requiring stable component supply and long-term manufacturability.
Supply support for AP2204R-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 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 AP2204 series belongs to Diodes' wide-input ULDO regulator product line, engineered specifically for portable and battery-powered applications demanding low dropout, low noise, and robust thermal performance in miniature packages.
FAQ
What is the minimum input voltage required for regulation at 5.0V output?
The AP2204R-5.0TRG1 requires VIN ≥ VOUT + 1V (i.e., ≥6.0V) for guaranteed regulation across temperature and load per datasheet recommendations. However, it maintains regulation down to VIN = 5.1V (100mV dropout) at light loads (100µA), though line regulation degrades below the 6.0V threshold.
Can the AP2204R-5.0TRG1 be used with a 10µF aluminum electrolytic output capacitor?
No-this device is optimized for low-ESR ceramic capacitors (2.2µF X5R/X7R). Aluminum electrolytics exhibit higher ESR and capacitance drift, which can cause instability, overshoot, or oscillation. The datasheet explicitly specifies ceramic capacitor compatibility and provides stability data only for 2.2µF ceramic output caps.
Is the exposed pad on the SOT-89 package electrically connected, and how should it be handled?
Yes-the exposed pad on the AP2204R-5.0TRG1's SOT-89 package is internally connected to GND. It must be soldered to a PCB copper pour tied to system ground to achieve specified thermal resistance (165°C/W) and ensure reliable operation under load. Leaving it floating degrades thermal performance and may trigger premature thermal shutdown.
Does the AP2204R-5.0TRG1 meet AEC-Q100 requirements for automotive use?
No-the AP2204R-5.0TRG1 is not AEC-Q100 qualified. Diodes Incorporated offers automotive-grade variants (e.g., AP2204Q series) with PPAP capability, IATF 16949 manufacturing, and extended qualification testing. This part is rated for industrial temperature range (–40°C to +125°C) but lacks automotive-specific stress screening and change control documentation.
AP2204R-5.0TRG1 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):
- 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 (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-89-3
AP2204R-5.0TRG1 FAQ
1.How can I place an order for AP2204R-5.0TRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2204R-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 AP2204R-5.0TRG1 reliable?
The price and inventory of AP2204R-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 AP2204R-5.0TRG1 is usually 5 days.
3.What payment methods are accepted for AP2204R-5.0TRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2204R-5.0TRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2204R-5.0TRG1?
AP2204R-5.0TRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2204R-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 AP2204R-5.0TRG1?
For technical support, including AP2204R-5.0TRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2204R-5.0TRG1 requirements.
6.How does Aetrix verify that AP2204R-5.0TRG1 is sourced from the original manufacturer or authorized distributors?
All AP2204R-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 AP2204R-5.0TRG1 meets industry standards.
7.What is the process for return or replacement of AP2204R-5.0TRG1?
All AP2204R-5.0TRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2204R-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 AP2204R-5.0TRG1 part is unused and in its original packaging.
Return procedure for AP2204R-5.0TRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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