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Diodes Incorporated AP2204K-5.0TRG1
- Part No.:
- AP2204K-5.0TRG1
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP2204K-5.0TRG1.pdf
- Description:
- IC REG LINEAR 5V 150MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,879
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Product details
Overview
AP2204K-5.0TRG1 from Diodes Incorporated is a fixed-output 5.0V ultra-low dropout (ULDO) linear regulator in SOT-23-5 package, delivering up to 150mA output current with 100mV dropout at 100µA load, ±2% output voltage accuracy, and 60dB PSRR at 1kHz - designed for USB-powered peripherals and portable instrumentation requiring stable low-noise bias.
For engineers reviewing the AP2204K-5.0TRG1 datasheet, AP2204K-5.0TRG1 pinout, AP2204K-5.0TRG1 application, or AP2204K-5.0TRG1 equivalent, key selection criteria include input voltage range (2.6V–24V), thermal shutdown behavior, enable pin logic thresholds, ground current vs. load profile, and compatibility with ceramic output capacitors.
Technical Context
The AP2204K-5.0TRG1 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 to support wide VIN operation. Its internal architecture enables regulation down to VOUT + 100mV at light loads while maintaining ±100ppm/°C temperature coefficient.
It features active thermal shutdown triggered at TJ ≥ +150°C, EN pin with 2.0V "high" threshold and 0.4V "low" threshold, and ultra-low quiescent current (20µA no-load, 1.3mA at 100mA load), making it suitable for battery-backed systems where standby power budget is constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0V ±2% - ensures stable MCU core or sensor bias without external resistors. |
| Input Voltage Range | 2.6V to 24V - supports single-cell Li-ion to 24V industrial rails without pre-regulation. |
| Dropout Voltage | 100mV @ 100µA - enables regulation from 5.1V input, critical for low-headroom battery operation. |
| PSRR | 60dB @ 1kHz - suppresses switching noise from upstream DC-DC converters feeding the LDO. |
| Ground Current | 20µA @ IOUT = 0A - minimizes battery drain during system sleep modes. |
| Thermal Shutdown | Activates at TJ ≥ +150°C - protects device and PCB under sustained overload or poor heatsinking. |
| Enable Threshold | EN "high" ≥ 2.0V, "low" ≤ 0.4V - compatible with 3.3V and 5V logic-level control signals. |
Pinout & Package
SOT-23-5 surface-mount package (3.1mm × 1.7mm × 1.3mm) with exposed pad thermally connected to GND per datasheet recommendation (Note 6). Pin 1 = VIN, Pin 2 = GND, Pin 3 = EN, Pin 4 = VOUT, Pin 5 = ADJ/NC (internally not connected for fixed version; recommended tied to GND for thermal enhancement).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Input supply connection | Accepts 2.6–24V; must be decoupled with ≥1.0µF ceramic capacitor near pin. |
| 2 (GND) | Power ground reference | Common return for input/output capacitors and thermal pad; connects to PCB ground plane. |
| 3 (EN) | Active-high enable input | Pull ≥2.0V to activate regulator; pull ≤0.4V to disable and reduce IQ to 0.01µA. |
| 4 (VOUT) | Regulated 5.0V output | Delivers up to 150mA; requires ≥2.2µF low-ESR ceramic capacitor for stability. |
| 5 (ADJ/NC) | Adjust/No-connect terminal | Internally unconnected for fixed 5.0V version; tie to GND to maximize thermal copper area. |
Key Features
| Feature | Design Value |
|---|---|
| Wide input range | 2.6V–24V operation eliminates need for intermediate buck stages in multi-rail systems. |
| Low-noise output | 30µVrms RMS noise (10Hz–100kHz) avoids interference in analog sensor signal chains. |
| Ceramic capacitor compatible | Stable with ≥2.2µF X5R/X7R ceramics - reduces BOM count and board space vs. tantalum. |
| Ultra-low quiescent current | 20µA no-load ground current extends battery life in always-on monitoring nodes. |
| Thermal protection | Auto-recovery shutdown prevents permanent damage during transient overloads or ambient rise. |
Applications
| USB-Powered Test Equipment | Portable Medical Sensors |
|---|---|
|
Use Scenario: Handheld multimeter with microcontroller, LCD, and analog front-end powered from USB 5V bus. IC Role / Device Role / Timing Role: Primary 5.0V bias regulator supplying MCU core, ADC reference, and display driver. Use Value: 60dB PSRR rejects USB switcher ripple; 100mV dropout allows full regulation even as USB port voltage sags to 4.75V. |
Use Scenario: Battery-operated pulse oximeter with optical sensing and BLE radio. IC Role / Device Role / Timing Role: Low-noise 5.0V supply for analog photodiode amplifier and precision ADC. Use Value: 30µVrms output noise prevents SNR degradation; 20µA quiescent current extends 2-week battery life in sleep mode. |
| Industrial IoT Edge Node | Automotive Body Control Module Subsystem |
|
Use Scenario: LoRaWAN sensor node with MCU, RF transceiver, and environmental sensors. IC Role / Device Role / Timing Role: Secondary regulator deriving clean 5.0V from 12V vehicle or solar input via buck converter. Use Value: 24V max input withstands load-dump transients; thermal shutdown prevents failure during enclosure overheating. |
Use Scenario: Dashboard lighting controller receiving 12V battery input with variable load profiles. IC Role / Device Role / Timing Role: Local 5.0V rail for microcontroller and LED driver ICs in non-safety-critical subsystem. Use Value: Wide VIN range accommodates cold-crank (6V) to alternator surge (18V); EN pin enables firmware-controlled power gating. |
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, 1.6µA IQ, SOT-23-3 (no EN pin) | Lacks enable control and has higher dropout at 150mA - unsuitable for tight headroom or remote ON/OFF. | Select when EN functionality is unnecessary and higher output current margin is required. |
| TPS7A2050PDBVR | 300mA rated, 170mV dropout @ 300mA, 6.5µA IQ, SOT-23-5 with EN, ±1% accuracy | Better accuracy and lower noise (4.7µVrms), but narrower VIN range (1.6–6.0V) limits 12V+ use cases. | Prefer for precision analog rails where input is tightly regulated ≤6V and noise is critical. |
Compared with MCP1700T-5002E/TT and TPS7A2050PDBVR, the AP2204K-5.0TRG1 uniquely balances 24V input tolerance, EN control, and ultra-low IQ in SOT-23-5 - making it optimal for battery-to-24V hybrid systems needing firmware-gated power domains.
Availability
AP2204K-5.0TRG1 is available at Aetrix Electronics and suitable for USB-powered instrumentation, portable medical devices, industrial IoT edge nodes, and automotive body electronics requiring stable component supply across extended temperature and input voltage ranges.
Supply support for AP2204K-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 semiconductor company specializing in discrete, analog, and mixed-signal solutions, with manufacturing certified to IATF 16949 and product compliance to AEC-Q100/101 standards.
The AP2204 series belongs to Diodes' high-voltage ULDO regulator product line, engineered for portable and industrial applications demanding wide-input operation, low noise, and robust thermal protection without external components.
FAQ
What is the minimum input voltage required for regulation at 5.0V output?
The datasheet specifies minimum input voltage as the larger of 2.6V or VOUT + 1V - so for 5.0V output, VIN must be ≥6.0V to guarantee regulation. Below that, the device enters dropout and output voltage drops linearly with input. This ensures predictable behavior during brown-out conditions.
Can AP2204K-5.0TRG1 be used with a 10µF aluminum electrolytic output capacitor?
No - the AP2204 requires low-ESR ceramic capacitors (≥2.2µF X5R/X7R) for stability. Aluminum electrolytics exhibit high ESR and inductance, which can cause oscillation or poor transient response. Using them voids guaranteed performance and risks instability per the datasheet's design recommendations.
Is the exposed pad on the SOT-23-5 package electrically connected?
Per Diodes datasheet Note 6, the exposed pad is thermally connected to GND but not electrically isolated - it must be soldered to a PCB ground plane for thermal dissipation and electrical grounding. Leaving it floating degrades thermal performance and may compromise reliability under load.
Does AP2204K-5.0TRG1 support reverse polarity protection?
No - the device lacks integrated reverse-voltage protection. Applying negative voltage to VIN or VOUT relative to GND exceeds absolute maximum ratings and may cause permanent damage. External protection (e.g., series Schottky diode or dedicated protection IC) is required in systems prone to reverse connection.
AP2204K-5.0TRG1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- 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:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
AP2204K-5.0TRG1 FAQ
1.How can I place an order for AP2204K-5.0TRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2204K-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 AP2204K-5.0TRG1 reliable?
The price and inventory of AP2204K-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 AP2204K-5.0TRG1 is usually 5 days.
3.What payment methods are accepted for AP2204K-5.0TRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2204K-5.0TRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2204K-5.0TRG1?
AP2204K-5.0TRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2204K-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 AP2204K-5.0TRG1?
For technical support, including AP2204K-5.0TRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2204K-5.0TRG1 requirements.
6.How does Aetrix verify that AP2204K-5.0TRG1 is sourced from the original manufacturer or authorized distributors?
All AP2204K-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 AP2204K-5.0TRG1 meets industry standards.
7.What is the process for return or replacement of AP2204K-5.0TRG1?
All AP2204K-5.0TRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2204K-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 AP2204K-5.0TRG1 part is unused and in its original packaging.
Return procedure for AP2204K-5.0TRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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