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Diodes Incorporated AP2204MP-ADJTRG1
- Part No.:
- AP2204MP-ADJTRG1
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
AP2204MP-ADJTRG1.pdf
- Description:
- IC REG LINEAR POS ADJ 150MA 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,397
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Product details
Overview
AP2204MP-ADJTRG1 from Diodes Incorporated is an adjustable ultra-low dropout (ULDO) linear regulator IC designed for precision voltage regulation in space-constrained, battery-sensitive systems. It operates across a 2.6V–24V input range, delivers up to 150mA output current, features 1.24V reference voltage, 60dB PSRR at 1kHz, and 100mV dropout at 100µA - enabling stable 7.6V output in USB-powered instrumentation.
For engineers reviewing the AP2204MP-ADJTRG1 datasheet, AP2204MP-ADJTRG1 pinout, AP2204MP-ADJTRG1 application, or AP2204MP-ADJTRG1 equivalent, key selection criteria include adjustable output capability (1.24V–22V), thermal shutdown protection, compatibility with low-ESR ceramic capacitors, and PSOP-8 package suitability for thermally demanding portable designs.
Technical Context
The AP2204MP-ADJTRG1 integrates a precision 1.24V bandgap reference, error amplifier, current-limit circuit, thermal shutdown logic, and enable control - all implemented in high-voltage EPNP process. Its feedback loop uses external R1/R2 resistors to set VOUT = 1.24V × (1 + R1/R2), supporting programmable outputs from 1.24V to 22V.
It achieves 0.05% line regulation and 0.5% load regulation over temperature, with ground current as low as 20µA at zero load and 2.5mA at 150mA output. The PSOP-8 package provides θJC = 22°C/W, enabling reliable operation up to +125°C junction temperature under sustained 150mA loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.6V to 24V - supports direct connection to 12V automotive rails or multi-cell Li-ion batteries without pre-regulation. |
| Output Voltage Range | 1.24V to 22V (adjustable) - set via external resistor divider; enables custom biasing for analog sensors or RF front-ends. |
| Max Output Current | 150mA - sufficient for powering microcontroller cores, ADCs, or small FPGAs in portable equipment. |
| Dropout Voltage | 100mV @ 100µA - ensures regulation even when VIN drops within ~100mV of VOUT, critical for battery end-of-life operation. |
| PSRR | 60dB @ 1kHz - suppresses switching noise from upstream DC/DC converters feeding the LDO input. |
| Ground Current | 20µA @ IOUT = 0A - minimizes quiescent power loss in always-on subsystems like real-time clocks or wake-up circuits. |
| Reference Voltage | 1.24V ±2.4% - defines output accuracy baseline; combined with resistor tolerance determines final VOUT precision. |
| Thermal Shutdown | Active at TJ ≥ +150°C - protects device and PCB during overload or poor heatsinking conditions. |
Pinout & Package
AP2204MP-ADJTRG1 is housed in a thermally enhanced PSOP-8 package (5.8mm × 4.0mm × 1.27mm) with exposed pad for GND connection, delivering θJA = 51°C/W on 2-layer FR-4 board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT | Regulated output node; requires 2.2µF ceramic capacitor to GND for stability and transient response. |
| 2 | NC | No internal connection; leave unconnected or tie to GND for mechanical reinforcement only. |
| 3 | NC | No internal connection; same as Pin 2 - no electrical function. |
| 4 | ADJ/NC | Feedback input for adjustable version; connects to resistor divider midpoint; must not float. |
| 5 | VIN | Main input supply; decouple with 1.0µF ceramic capacitor close to pin to suppress high-frequency noise. |
| 6 | GND | Analog and power ground reference; connect directly to exposed pad for optimal thermal and noise performance. |
| 7 | NC | No internal connection; electrically isolated; avoid routing signals nearby. |
| 8 | EN | Active-high enable input; drives high (>2.0V) to activate regulator; pulls low (<0.4V) to enter 0.01µA standby mode. |
Key Features
| Feature | Design Value |
|---|---|
| Wide Input Range (2.6V–24V) | Eliminates need for intermediate buck stages when powering from variable sources like automotive or industrial 12V/24V rails. |
| Ultra-Low Dropout (100mV @ 100µA) | Extends usable battery life by maintaining regulation down to near-cell minimum voltage in single- or dual-cell Li-ion systems. |
| Low Ground Current (20µA @ no load) | Reduces system standby power by >90% vs. legacy LDOs, enabling months-long operation on coin cells in IoT endpoint devices. |
| 60dB PSRR @ 1kHz | Attenuates ripple from noisy switchers (e.g., DC/DC converters) to preserve signal integrity in ADC reference or RF bias supplies. |
| Thermal Shutdown + Current Limit | Provides autonomous fault containment during short-circuit or overheating events without external protection circuitry. |
| PSOP-8 with Exposed Pad | Enables 22°C/W junction-to-case thermal resistance - supports 150mA continuous output with minimal PCB copper area. |
Applications
| Portable Medical Sensors | Industrial Data Loggers |
|---|---|
|
Use Scenario: Powering low-noise analog front-ends in wearable ECG or pulse oximetry modules operating from single Li-ion cells. IC Role / Device Role / Timing Role: ULDO regulator providing clean, stable 3.3V or 5.0V rail for op-amps and 16-bit ADCs. Use Value: 30µVrms output noise and 60dB PSRR prevent switching artifacts from corrupting µV-level biomedical signals. |
Use Scenario: Supplying microcontroller, flash memory, and RS-485 transceivers in battery-backed environmental monitoring nodes deployed outdoors. IC Role / Device Role / Timing Role: Adjustable LDO configured for 7.6V output to drive high-side MOSFET gate drivers and isolated power supplies. Use Value: 2.6V–24V input range allows direct use of solar-charged 12V battery banks without additional conversion stages. |
| USB-Powered Test Equipment | Automotive Infotainment Accessories |
|
Use Scenario: Regulating 5.0V USB bus power to generate precise 2.5V reference for handheld multimeters or oscilloscope probes. IC Role / Device Role / Timing Role: Precision adjustable LDO with 1.24V reference used in feedback loop to achieve ±0.5% output accuracy. Use Value: 0.05% line regulation ensures output stability despite USB port voltage sag under heavy load. |
Use Scenario: Providing regulated 3.3V for CAN transceivers and microcontrollers in aftermarket OBD-II adapters powered from vehicle 12V system. IC Role / Device Role / Timing Role: High-PSRR LDO filtering alternator ripple and load-dump transients before sensitive digital logic. Use Value: Thermal shutdown and 38V absolute max input rating withstand automotive load-dump events without external TVS. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar adjustable LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP2210MP-ADJTRG1 | Higher max output current (300mA), higher quiescent current (50µA), same PSOP-8 package. | Better suited for higher-power loads like Wi-Fi SoCs or display drivers requiring >150mA. | Select when output current demand exceeds 150mA but thermal budget allows higher IGND. |
| MCP1703T-3302E/MB | Fixed 3.3V output, SOT-23-5 package, lower IQ (2.0µA), 600mV dropout @ 250mA. | Limited to fixed-output use cases; unsuitable for adjustable or high-input-voltage (>16V) applications. | Choose only for cost-sensitive, low-current, fixed-rail designs where footprint and ultra-low IQ outweigh adjustability needs. |
Compared with AP2204MP-ADJTRG1, AP2210MP-ADJTRG1 trades higher quiescent current for doubled output capability, while MCP1703T-3302E/MB sacrifices adjustability and input range for ultra-low standby power in compact SOT-23-5 layouts.
Availability
AP2204MP-ADJTRG1 is available at Aetrix Electronics and suitable for portable medical sensors, industrial data loggers, USB-powered test equipment, and automotive infotainment accessories requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AP2204MP-ADJTRG1 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 manufacturer specializing in discrete, analog, and mixed-signal solutions for power management, signal integrity, and connectivity applications.
The AP2204 series belongs to Diodes' high-voltage LDO product line, engineered specifically for wide-input, low-noise, and thermally robust regulation in battery-powered and industrial equipment.
FAQ
What is the minimum input voltage required for stable regulation with AP2204MP-ADJTRG1?
The minimum recommended input voltage is the larger of 2.6V or VOUT + 1V. For example, if configured for 7.6V output, VIN must be ≥8.6V to avoid dropout. Below this threshold, output voltage regulation degrades and ripple rejection falls significantly per datasheet Section 6.2.
Can AP2204MP-ADJTRG1 be used with ceramic output capacitors?
Yes - it is explicitly designed for compatibility with low-ESR ceramic capacitors (minimum 2.2µF). The datasheet confirms stability with X5R/X7R types and specifies no ESR requirements, simplifying layout and reducing BOM count versus tantalum-based alternatives.
How does the EN pin behave during power-up and shutdown?
The EN pin is active-high with 2.0V threshold. When pulled high, startup time is typically 80µs to reach 90% of final VOUT. When pulled low, output disables within 1µs and ground current drops to ≤1.0µA, enabling rapid system-level power gating in battery-critical applications.
Is AP2204MP-ADJTRG1 qualified for automotive applications?
No - it is rated for -40°C to +85°C ambient and lacks AEC-Q100 qualification. Diodes states that automotive-grade versions require specific change control, PPAP capability, and IATF 16949 manufacturing; this part is intended for industrial and consumer portable equipment only.
AP2204MP-ADJTRG1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Adjustable
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 24V
- Voltage - Output (Min/Fixed):
- 1.24V
- Voltage - Output (Max):
- 22V
- 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:
- 8-SO-EP
AP2204MP-ADJTRG1 FAQ
1.How can I place an order for AP2204MP-ADJTRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2204MP-ADJTRG1 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 AP2204MP-ADJTRG1 reliable?
The price and inventory of AP2204MP-ADJTRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2204MP-ADJTRG1 is usually 5 days.
3.What payment methods are accepted for AP2204MP-ADJTRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2204MP-ADJTRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2204MP-ADJTRG1?
AP2204MP-ADJTRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2204MP-ADJTRG1 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 AP2204MP-ADJTRG1?
For technical support, including AP2204MP-ADJTRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2204MP-ADJTRG1 requirements.
6.How does Aetrix verify that AP2204MP-ADJTRG1 is sourced from the original manufacturer or authorized distributors?
All AP2204MP-ADJTRG1 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 AP2204MP-ADJTRG1 meets industry standards.
7.What is the process for return or replacement of AP2204MP-ADJTRG1?
All AP2204MP-ADJTRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2204MP-ADJTRG1, 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 AP2204MP-ADJTRG1 part is unused and in its original packaging.
Return procedure for AP2204MP-ADJTRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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