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Diodes Incorporated AP2204K-2.8TRG1
- Part No.:
- AP2204K-2.8TRG1
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP2204K-2.8TRG1.pdf
- Description:
- IC REG LINEAR 2.8V 150MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,051
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Product details
Overview
AP2204K-2.8TRG1 from Diodes Incorporated is a fixed-output 2.8V ultra-low dropout (ULDO) linear regulator in SOT-23-5 package, delivering up to 150mA output current with 100mV dropout at 100µA load, 60dB PSRR at 1kHz, ±2% output voltage accuracy, and 20µA ground current at zero load - deployed in USB-powered portable instrumentation and low-power microcontroller subsystems.
For engineers reviewing the AP2204K-2.8TRG1 datasheet, AP2204K-2.8TRG1 pinout, AP2204K-2.8TRG1 application, or AP2204K-2.8TRG1 equivalent, key selection criteria include input voltage range (2.6V–24V), thermal shutdown behavior, enable pin logic thresholds, ceramic capacitor compatibility, and junction temperature derating above +85°C.
Technical Context
The AP2204K-2.8TRG1 integrates a precision 1.24V bandgap reference, error amplifier, resistor network for fixed 2.8V output, current-limit protection, and active-high enable circuitry. Its EPNP process enables wide VIN operation while maintaining low quiescent current and high ripple rejection.
It operates in dropout when VIN falls below VOUT + 1V (i.e., <3.8V), triggering thermal shutdown above +150°C junction temperature. The EN pin accepts 2.0V "high" and 0.4V "low" logic levels, supporting controlled power sequencing in battery-backed systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8V ±2% - ensures stable supply for 2.8V I/O rails and low-voltage sensors without external feedback. |
| Input Voltage Range | 2.6V to 24V - supports single-cell Li-ion (3.0–4.2V), multi-cell alkaline, and industrial 12/24V bus inputs. |
| Dropout Voltage | 100mV @ 100µA - enables regulation down to 2.9V input, critical for end-of-battery-life operation. |
| PSRR | 60dB @ 1kHz - suppresses switching noise from upstream DC-DC converters feeding the LDO input. |
| Ground Current | 20µA @ IOUT = 0A - minimizes standby power loss in always-on monitoring circuits. |
| Thermal Shutdown | Activates at TJ ≥ +150°C - protects against sustained overload or poor PCB thermal design. |
| Enable Threshold | VEN(H) ≥ 2.0V, VEN(L) ≤ 0.4V - compatible with 1.8V/3.3V GPIO without level-shifting. |
Pinout & Package
SOT-23-5 package: 2.9mm × 1.6mm × 1.3mm body, thermally enhanced with exposed pad connected to GND per datasheet Note 4; suitable for high-density portable PCB layouts.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VIN | Main input supply connection; must be decoupled with ≥1.0µF ceramic capacitor near pin. |
| 2 | GND | Analog/digital ground reference; tied to exposed pad for thermal and electrical integrity. |
| 3 | EN | Active-high enable; pulls device into ultra-low-IQ shutdown mode (<1.0µA) when driven low. |
| 4 | ADJ/NC | No-connect for fixed 2.8V version; recommended tied to GND to maximize thermal copper area. |
| 5 | VOUT | Regulated 2.8V output; requires ≥2.2µF low-ESR ceramic capacitor for stability and transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Wide input range (2.6–24V) | Eliminates need for pre-regulation in mixed-voltage systems, e.g., automotive accessory ports or multi-battery packs. |
| Ultra-low quiescent current (20µA) | Extends battery life in always-on IoT nodes where sleep-mode current dominates total energy budget. |
| Ceramic capacitor compatible | Enables use of compact, high-reliability 0402/0603 MLCCs instead of larger, aging-prone tantalum capacitors. |
| Thermal shutdown + current limit | Provides autonomous fault containment during short-circuit or overtemperature events without external circuitry. |
| ±2% output accuracy | Meets tight tolerance requirements for ADC reference supplies and precision analog front-ends. |
Applications
| USB-Powered Portable Test Equipment | Low-Power Microcontroller Subsystem |
|---|---|
Use Scenario: Handheld multimeter with integrated Bluetooth LE module and 2.8V display backlight. IC Role / Device Role / Timing Role: Primary 2.8V rail regulator supplying MCU core, BLE radio, and OLED driver from single 3.7V Li-ion cell. Use Value: Maintains regulation down to 2.9V input, enabling >95% battery utilization before brownout. |
Use Scenario: Battery-operated environmental sensor node with wake-on-interrupt operation. IC Role / Device Role / Timing Role: Always-on 2.8V supply for RTC, wake-up comparator, and flash memory retention during deep-sleep. Use Value: 20µA ground current minimizes sleep-mode drain, extending 10-year battery life target. |
| Industrial Handheld Scanner | Medical Point-of-Care Diagnostic Module |
Use Scenario: Rugged barcode scanner powered by replaceable AA batteries and requiring ESD-hardened 2.8V logic rail. IC Role / Device Role / Timing Role: Regulator for CMOS image sensor interface and laser driver control logic. Use Value: 2000V HBM ESD rating and thermal shutdown protect against field-induced latch-up in ungrounded environments. |
Use Scenario: Portable blood glucose meter with LCD and electrochemical sensor interface. IC Role / Device Role / Timing Role: Precision 2.8V supply for analog sensor signal conditioning and low-noise ADC reference. Use Value: 30µVrms output noise and ±2% accuracy ensure <1% measurement error across operating temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ULDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-2802E/TT | 250mA max output, 175mV dropout @ 250mA, 3.5µA IQ, SOT-23-3 (no EN pin) | Lacks enable control and thermal shutdown; limited to simpler always-on loads. | Select when board space is constrained and enable sequencing is unnecessary. |
| TPS7A0528PDBVR | 200mA max output, 175mV dropout @ 200mA, 25µA IQ, active-low EN, 1% accuracy | Tighter accuracy and lower dropout at full load, but EN polarity differs and PSRR is 45dB @ 1kHz. | Prefer when higher accuracy and load capability outweigh PSRR and enable compatibility trade-offs. |
Compared with MCP1700T-2802E/TT and TPS7A0528PDBVR, the AP2204K-2.8TRG1 offers superior PSRR and integrated thermal protection at the cost of slightly higher dropout at 150mA, making it optimal for noise-sensitive, thermally challenged portable designs.
Availability
AP2204K-2.8TRG1 is available at Aetrix Electronics and suitable for USB-powered instrumentation, low-power microcontroller subsystems, and industrial handheld scanners requiring stable component supply with RoHS/Green compliance and full traceability.
Supply support for AP2204K-2.8TRG1 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 battery-powered and multi-rail portable electronics demanding low noise, high PSRR, and extended operational voltage range.
FAQ
What is the minimum input voltage required for regulation at 2.8V output?
The AP2204K-2.8TRG1 requires VIN ≥ VOUT + 1V = 3.8V for guaranteed regulation under all conditions. Below 3.8V, dropout occurs and output voltage tracks VIN minus dropout voltage; datasheet specifies 100mV dropout at 100µA, rising to 360mV at 150mA.
Can the AP2204K-2.8TRG1 drive a 150mA load continuously in SOT-23-5 package?
Yes, but thermal design is critical: θJA = 250°C/W. At 150mA and 24V input, power dissipation reaches ~3.18W, raising junction temperature by ~795°C above ambient - exceeding absolute maximum TJ. Practical continuous load is ≤50mA without heatsinking; derate linearly above +85°C ambient.
Is an external capacitor required on the ADJ/NC pin for the fixed 2.8V version?
No. Pin 4 (ADJ/NC) is internally disconnected in fixed-output variants. Diodes recommends connecting it to GND to improve thermal conduction via PCB copper, not for functionality - no capacitor or resistor is needed or specified.
Does the AP2204K-2.8TRG1 meet AEC-Q200 for automotive use?
No. The AP2204K-2.8TRG1 is rated for -40°C to +85°C operation and is not qualified to AEC-Q200. Diodes offers automotive-grade alternatives (e.g., AP7361Q series) with PPAP support, IATF 16949 manufacturing, and extended temperature screening.
AP2204K-2.8TRG1 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):
- 2.8V
- 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-2.8TRG1 FAQ
1.How can I place an order for AP2204K-2.8TRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2204K-2.8TRG1 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-2.8TRG1 reliable?
The price and inventory of AP2204K-2.8TRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2204K-2.8TRG1 is usually 5 days.
3.What payment methods are accepted for AP2204K-2.8TRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2204K-2.8TRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2204K-2.8TRG1?
AP2204K-2.8TRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2204K-2.8TRG1 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-2.8TRG1?
For technical support, including AP2204K-2.8TRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2204K-2.8TRG1 requirements.
6.How does Aetrix verify that AP2204K-2.8TRG1 is sourced from the original manufacturer or authorized distributors?
All AP2204K-2.8TRG1 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-2.8TRG1 meets industry standards.
7.What is the process for return or replacement of AP2204K-2.8TRG1?
All AP2204K-2.8TRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2204K-2.8TRG1, 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-2.8TRG1 part is unused and in its original packaging.
Return procedure for AP2204K-2.8TRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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