Diodes Incorporated AP2204R-3.0TRG1
- Part No.:
- AP2204R-3.0TRG1
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-243AA
- Datasheet:
-
AP2204R-3.0TRG1.pdf
- Description:
- IC REG LINEAR 3V 150MA SOT89-3
- Quantity:
- Payment:

- Shipping:

Inventory:2,680
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Product details
Overview
AP2204R-3.0TRG1 from Diodes Incorporated is a fixed-output 3.0V 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 subsystems.
For engineers reviewing the AP2204R-3.0TRG1 datasheet, AP2204R-3.0TRG1 pinout, AP2204R-3.0TRG1 application, or AP2204R-3.0TRG1 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-3.0TRG1 integrates a precision 1.24V bandgap reference, error amplifier, resistor network for fixed 3.0V output, current-limit protection, thermal shutdown, and an active-high enable circuit. Its EPNP process enables wide VIN range while maintaining low quiescent current and high ripple rejection.
It functions as a post-regulation stage after switching converters or primary battery rails, providing clean, stable 3.0V supply to noise-sensitive analog circuits, MCU cores, or RF front-ends. The SOT-89 Option 1 pinout (VIN–VOUT–GND) supports simplified PCB layout with minimal trace inductance between input and output caps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0V ±2% - ensures stable logic-level supply for 3.3V-tolerant I/O without external feedback resistors. |
| Input Voltage Range | 2.6V to 24V - supports direct connection to Li-ion, 9V batteries, or industrial 12V/24V rails without pre-regulation. |
| Dropout Voltage | 100mV @ 100µA - maintains regulation even when input drops to 3.1V, critical for battery end-of-life operation. |
| PSRR | 60dB @ 1kHz - suppresses switching noise from upstream DC-DC converters feeding sensitive ADCs or PLLs. |
| Quiescent Current | 20µA @ zero load - extends runtime in always-on sensor nodes or real-time clock backup supplies. |
| Enable Threshold | VEN(HI) ≥ 2.0V, VEN(LO) ≤ 0.4V - compatible with standard GPIOs and open-drain controllers for precise power gating. |
| Thermal Resistance | θJA = 165°C/W (SOT-89) - requires minimum 1.5cm² copper pour on GND pad for full 150mA continuous operation at +85°C ambient. |
Pinout & Package
SOT-89 package (Option 1), 3-pin surface-mount, exposed substrate pad connected to GND per Note 4 for thermal dissipation. Pin 1 = VIN, Pin 2 = VOUT, Pin 3 = GND.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VIN | Main input supply rail; must be decoupled with ≥1.0µF ceramic capacitor placed adjacent to pin. |
| 2 | VOUT | Regulated 3.0V output; connects directly to load and 2.2µF ceramic output capacitor for stability. |
| 3 | GND | Power ground reference; tied to exposed substrate pad for thermal conduction and low-noise return path. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 100mV @ 100µA enables regulation down to VIN = 3.1V - preserves system uptime during battery sag. |
| Ceramic capacitor compatible | No ESR requirement on COUT - eliminates need for tantalum or aluminum electrolytics, reducing BOM cost and footprint. |
| Thermal shutdown | Activates at TJ ≥ +150°C - prevents catastrophic failure during transient overloads or poor heatsinking. |
| Low ground current | 50µA @ 100µA load - minimizes wasted current in low-power sleep modes of portable devices. |
| High PSRR | 60dB @ 1kHz - rejects ripple from buck converter switching frequencies, improving signal integrity in mixed-signal designs. |
Applications
| USB-Powered Sensor Node | Industrial PLC I/O Module |
|---|---|
|
Use Scenario: Low-power environmental sensor node powered via USB 5V bus with internal LiPo backup. IC Role / Device Role / Timing Role: Primary 3.0V LDO supplying MCU core, analog front-end, and BLE radio transceiver. Use Value: 20µA quiescent current extends battery life in sleep mode; 60dB PSRR isolates RF section from USB switcher noise. |
Use Scenario: DIN-rail mounted PLC module requiring isolated 3.0V rail for digital input conditioning circuitry. IC Role / Device Role / Timing Role: Post-regulator after isolated 24V-to-5V DC-DC, delivering clean 3.0V to optocoupler bias and level-shifting logic. Use Value: 24V max input withstands industrial transients; thermal shutdown protects against enclosure overheating. |
| Portable Medical Monitor | Automotive Infotainment Subsystem |
|
Use Scenario: Handheld ECG monitor using single-cell Li-ion battery with variable voltage (4.2V–2.8V). IC Role / Device Role / Timing Role: Stable 3.0V supply for precision analog signal chain and display controller. Use Value: 100mV dropout allows full regulation until battery reaches 3.1V - maximizes usable capacity. |
Use Scenario: Secondary power domain in head-unit for touch controller and audio codec, fed from 5V system rail. IC Role / Device Role / Timing Role: Noise-suppressed 3.0V source for high-resolution audio DAC and capacitive touch sensing. Use Value: ±2% output accuracy ensures consistent ADC reference; SOT-89 thermal performance sustains 150mA bursts during UI rendering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ULDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-3002E/TT | 250mA rated, 170mV dropout @ 250mA, 3.0V ±1%, SOT-23-3 package | Lacks enable pin; no thermal shutdown; higher dropout limits battery runtime | Choose only if enable control and thermal safety are not required and higher output current is needed. |
| TPS7A2030PDQNR | 300mA rated, 175mV dropout @ 300mA, 3.0V ±1%, 1.6µA IQ, WSON-6 package | Lower IQ but requires external EN pull-up; smaller footprint but no exposed thermal pad | Select when ultra-low standby current is critical and board space is constrained beyond SOT-89 dimensions. |
Compared with MCP1700T-3002E/TT and TPS7A2030PDQNR, the AP2204R-3.0TRG1 uniquely balances enable functionality, thermal protection, and SOT-89 thermal mass for reliable 150mA delivery in cost-sensitive industrial and portable designs where moderate IQ and proven ruggedness outweigh absolute minimum footprint or IQ.
Availability
AP2204R-3.0TRG1 is available at Aetrix Electronics and suitable for USB-powered instrumentation, industrial PLC I/O modules, and portable medical monitors requiring stable component supply with RoHS/Green compliance and full traceability.
Supply support for AP2204R-3.0TRG1 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 power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.
The AP2204 series belongs to Diodes' high-voltage ULDO regulator product line, engineered specifically for wide-input, low-noise, thermally robust regulation in battery-powered and harsh-environment applications.
FAQ
What is the maximum continuous output current for AP2204R-3.0TRG1 at +85°C ambient?
The AP2204R-3.0TRG1 delivers 150mA continuously at +85°C ambient when mounted on a 2-layer FR-4 PCB with a 1.5cm×1.5cm thermal pad connected to Pin 3 (GND). Derating begins above +85°C due to thermal shutdown activation at +150°C junction temperature; full 150mA is guaranteed only up to +85°C ambient with proper copper area.
Can AP2204R-3.0TRG1 operate with a 2.5V input supply?
No. The minimum recommended input voltage is the greater of 2.6V or VOUT + 1V (i.e., 4.0V). At 2.5V input, the device enters dropout and cannot regulate 3.0V output - output will track VIN minus dropout voltage (~2.4V), violating specification. Operation below 2.6V risks instability and is outside recommended conditions.
Is an external capacitor required on the EN pin for noise immunity?
No external capacitor is specified or required on the EN pin. The EN input has 1µA typical leakage and accepts standard CMOS logic levels (≥2.0V high, ≤0.4V low). For noisy environments, a 100kΩ pull-up to VIN and local 100nF bypass to GND near the pin provide sufficient immunity without compromising enable response time.
Does AP2204R-3.0TRG1 require a minimum load current to maintain regulation?
No minimum load current is required. The AP2204R-3.0TRG1 regulates stably from 0mA to 150mA output, with ground current rising only to 20µA at zero load. This makes it suitable for applications with intermittent or burst-mode loads, such as wake-on-event sensor interfaces or standby power domains.
AP2204R-3.0TRG1 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):
- 3V
- 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-3.0TRG1 FAQ
1.How can I place an order for AP2204R-3.0TRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2204R-3.0TRG1 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-3.0TRG1 reliable?
The price and inventory of AP2204R-3.0TRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2204R-3.0TRG1 is usually 5 days.
3.What payment methods are accepted for AP2204R-3.0TRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2204R-3.0TRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2204R-3.0TRG1?
AP2204R-3.0TRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2204R-3.0TRG1 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-3.0TRG1?
For technical support, including AP2204R-3.0TRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2204R-3.0TRG1 requirements.
6.How does Aetrix verify that AP2204R-3.0TRG1 is sourced from the original manufacturer or authorized distributors?
All AP2204R-3.0TRG1 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-3.0TRG1 meets industry standards.
7.What is the process for return or replacement of AP2204R-3.0TRG1?
All AP2204R-3.0TRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2204R-3.0TRG1, 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-3.0TRG1 part is unused and in its original packaging.
Return procedure for AP2204R-3.0TRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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