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Diodes Incorporated AP2204K-1.5TRG1
- Part No.:
- AP2204K-1.5TRG1
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP2204K-1.5TRG1.pdf
- Description:
- IC REG LINEAR 1.5V 150MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,041
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Product details
Overview
AP2204K-1.5TRG1 from Diodes Incorporated is a fixed-output 1.5V, 150mA ultra-low dropout (ULDO) linear regulator in SOT-23-5 package, fabricated using high-voltage EPNP process. It delivers ±2% output voltage accuracy, 100mV dropout at 100µA load, 60dB PSRR at 1kHz, and 20µA ground current at zero load-enabling stable power for USB peripherals and portable battery-powered systems.
For engineers reviewing the AP2204K-1.5TRG1 datasheet, AP2204K-1.5TRG1 pinout, AP2204K-1.5TRG1 application, or AP2204K-1.5TRG1 equivalent, key selection criteria include input voltage range (2.6–24V), thermal shutdown protection, compatibility with low-ESR ceramic capacitors, and enable-controlled power sequencing in space-constrained designs.
Technical Context
The AP2204K-1.5TRG1 integrates a precision 1.24V reference, error amplifier, resistor network for fixed 1.5V output, current-limit circuitry, and chip-enable logic. Its EPNP-based architecture enables wide VIN operation while maintaining low quiescent current and high ripple rejection.
It operates across –40°C to +125°C junction temperature, supports 1.5V output with ±100ppm/°C temperature coefficient, and features thermal shutdown triggered by internal junction temperature exceeding +150°C-ensuring robustness in thermally demanding portable applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5V ±2% - ensures stable core or I/O rail for low-voltage microcontrollers and sensors. |
| Max Output Current | 150mA - sufficient for powering single-chip USB devices, PMIC subsystems, or RF front-end biasing. |
| Dropout Voltage | 100mV @ 100µA - enables regulation from 1.6V input, critical for single-cell Li-ion or alkaline 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 standby power loss in always-on battery-backed circuits. |
| Input Voltage Range | 2.6V to 24V - accommodates wide-input industrial supplies, automotive accessory rails, and multi-cell battery stacks. |
| Enable Threshold | VEN(H) ≥ 2.0V, VEN(L) ≤ 0.4V - compatible with standard 1.8V/3.3V GPIO for precise system-level power control. |
Pinout & Package
SOT-23-5 package (3.1mm × 1.7mm × 1.3mm), RoHS-compliant and halogen-free "Green" construction with exposed pad connected to GND for thermal enhancement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Input voltage supply | Accepts 2.6–24V; requires 1.0µF ceramic input capacitor placed close to pin for stability. |
| 2 (GND) | Power ground reference | Common return path for input/output currents; connects to PCB thermal pad for heat dissipation. |
| 3 (EN) | Active-high enable input | Pulls low (<0.4V) to disable regulator; draws only 1µA leakage when active, enabling low-power wake-up control. |
| 4 (ADJ/NC) | Adjust/No-connect terminal | No internal connection for fixed 1.5V version; recommended tied to GND to maximize thermal copper area on PCB. |
| 5 (VOUT) | Regulated output | Delivers 1.5V ±2% with <0.5% load regulation (1–150mA); requires 2.2µF ceramic output capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 20µA at zero load - extends battery life in IoT sensors and wearables operating in deep-sleep modes. |
| Low-noise output | 30µVrms RMS noise (10Hz–100kHz) - suitable for powering analog signal chains and ADC reference supplies. |
| Thermal shutdown protection | Activates at TJ ≥ +150°C - prevents catastrophic failure during sustained overload or poor heatsinking. |
| Ceramic capacitor compatible | Stable with ≥1.0µF X5R/X7R input and ≥2.2µF output - eliminates need for costly tantalum or electrolytic capacitors. |
| High line/load regulation | 0.05% line regulation, 0.5% load regulation - maintains tight voltage tolerance across varying input and load conditions. |
Applications
| USB Peripheral Power | Portable Medical Sensor |
|---|---|
|
Use Scenario: Powering USB HID devices (keyboards, mice) from 5V USB bus or 3.3V system rail. IC Role / Device Role / Timing Role: ULDO regulator providing clean, low-noise 1.5V supply for microcontroller I/O banks and USB transceiver PHY. Use Value: 60dB PSRR rejects USB switcher noise; 100mV dropout allows operation down to 1.6V input during brown-out events. |
Use Scenario: Battery-powered pulse oximeter with analog front-end and BLE radio. IC Role / Device Role / Timing Role: Primary 1.5V rail for op-amps, ADC, and digital logic-enabled only during measurement cycles. Use Value: 20µA ground current minimizes standby drain; EN pin enables synchronized power gating with MCU sleep/wake transitions. |
| Industrial Handheld Terminal | Smart Home Sensor Node |
|
Use Scenario: Ruggedized barcode scanner powered by 7.4V Li-Po pack with variable load profiles. IC Role / Device Role / Timing Role: Post-regulator delivering stable 1.5V to FPGA configuration memory and interface logic. Use Value: 24V max input withstands load-dump transients; thermal shutdown protects against enclosure overheating during continuous scanning. |
Use Scenario: Coin-cell–powered temperature/humidity sensor transmitting via sub-GHz RF. IC Role / Device Role / Timing Role: Low-quiescent LDO supplying 1.5V to RF SoC's digital core during brief transmit bursts. Use Value: 150mA peak current supports RF PA biasing; ±2% accuracy ensures consistent digital timing across battery discharge curve. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low dropout regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-1502E/TT | 150mA, 1.5V fixed, 6µA IQ, SOT-23-3 - no enable pin, lower IQ but no EN control. | Lacks enable functionality; unsuitable for power-gated systems requiring dynamic LDO control. | Select when minimal quiescent current is primary and enable control is unnecessary. |
| TPS70615DBVR | 150mA, 1.5V fixed, 1.3µA IQ, SOT-23-5 - includes EN, but 200mV dropout @ 100µA (vs. 100mV). | Higher dropout limits usable input range in low-VIN battery applications. | Prefer when ultra-low IQ dominates over dropout performance in long-duration standby use cases. |
Compared with MCP1700T-1502E/TT and TPS70615DBVR, the AP2204K-1.5TRG1 uniquely balances 100mV dropout, 20µA ground current, and integrated enable-making it optimal for battery-powered systems requiring both low-VIN headroom and precise power sequencing.
Availability
AP2204K-1.5TRG1 is available at Aetrix Electronics and suitable for USB peripheral power, portable medical sensors, industrial handheld terminals, and smart home sensor nodes requiring stable component supply with full traceability and lifecycle management.
Supply support for AP2204K-1.5TRG1 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, designed specifically for battery-powered and USB-connected devices needing high accuracy, low noise, and robust thermal performance in compact footprints.
FAQ
What is the minimum input voltage required for stable 1.5V output regulation?
The AP2204K-1.5TRG1 requires VIN ≥ VOUT + 1V = 2.5V for guaranteed regulation, though its absolute minimum rated input is 2.6V. Below 2.5V, the device enters dropout, where output voltage drops linearly with input-verified per Recommended Operating Conditions (Note 9) and Electrical Characteristics tables.
Can the AP2204K-1.5TRG1 be used with ceramic output capacitors smaller than 2.2µF?
No-Diodes specifies a minimum 2.2µF X5R/X7R ceramic capacitor on VOUT for stability across temperature and load. Using smaller values risks oscillation or degraded transient response, as confirmed in Typical Application Circuits and Stability section of DS37168 Rev. 6–3.
Is the ADJ/NC pin required to be connected externally?
For the fixed 1.5V AP2204K-1.5TRG1, the ADJ/NC pin is internally unconnected. Diodes recommends tying it to GND to maximize PCB copper area for thermal conduction-explicitly stated in Pin Descriptions (Note 4) and confirmed in SOT-23-5 pin assignment diagrams.
Does this part meet AEC-Q200 for automotive use?
No-the AP2204K-1.5TRG1 is not AEC-Q200 qualified. The datasheet notes that automotive-grade versions require specific change control (PPAP, IATF 16949 manufacturing) and must be requested separately; this variant is rated for –40°C to +85°C ambient and intended for industrial and consumer applications.
AP2204K-1.5TRG1 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):
- 1.5V
- 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-1.5TRG1 FAQ
1.How can I place an order for AP2204K-1.5TRG1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2204K-1.5TRG1 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-1.5TRG1 reliable?
The price and inventory of AP2204K-1.5TRG1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2204K-1.5TRG1 is usually 5 days.
3.What payment methods are accepted for AP2204K-1.5TRG1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2204K-1.5TRG1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2204K-1.5TRG1?
AP2204K-1.5TRG1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2204K-1.5TRG1 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-1.5TRG1?
For technical support, including AP2204K-1.5TRG1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2204K-1.5TRG1 requirements.
6.How does Aetrix verify that AP2204K-1.5TRG1 is sourced from the original manufacturer or authorized distributors?
All AP2204K-1.5TRG1 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-1.5TRG1 meets industry standards.
7.What is the process for return or replacement of AP2204K-1.5TRG1?
All AP2204K-1.5TRG1 units undergo pre-shipment inspection (PSI). If there is an issue with AP2204K-1.5TRG1, 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-1.5TRG1 part is unused and in its original packaging.
Return procedure for AP2204K-1.5TRG1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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