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Diodes Incorporated AP2205-15W5-7
- Part No.:
- AP2205-15W5-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP2205-15W5-7.pdf
- Description:
- IC REG LINEAR 1.5V 250MA SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:2,048
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Product details
Overview
AP2205-15W5-7 from Diodes Incorporated is a fixed-output 1.5V ultra-low dropout (ULDO) linear regulator in SOT25 package, delivering up to 200mA output current with 100mV dropout at 100µA load. It operates across 2.3V–24V input range, achieves ±2% output voltage accuracy, and provides 60dB PSRR at 1kHz-designed for USB-powered portable devices requiring stable low-voltage biasing.
For engineers reviewing the AP2205-15W5-7 datasheet, AP2205-15W5-7 pinout, AP2205-15W5-7 application, or AP2205-15W5-7 equivalent, key selection criteria include its wide VIN range, ultra-low quiescent current (36µA at 100µA load), thermal shutdown, reverse current protection, and compatibility with low-ESR ceramic capacitors in space-constrained designs.
Technical Context
The AP2205-15W5-7 integrates a precision 1.24V bandgap reference, error amplifier, and current-limit circuit within a high-voltage EPNP process. Its internal resistor network fixes VOUT at 1.5V, eliminating external feedback components while maintaining ±2% regulation over line, load, and temperature (±100ppm/°C).
Enable control (EN pin) supports low-power shutdown mode with standby current as low as 0.01µA, and the device includes overtemperature protection, overcurrent limiting, and reverse-current blocking-ensuring robust operation in battery-backed and industrial power rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5V ±2% - eliminates need for external resistive divider; suitable for powering low-voltage logic and RF bias circuits. |
| Input Voltage Range | 2.3V to 24V - supports single-cell Li-ion, multi-cell alkaline, and industrial 12V/24V rails without pre-regulation. |
| Max Output Current | 200mA at VOUT ≥ 1.8V; 150mA at VOUT = 1.5V - defined by thermal limits and dropout behavior per datasheet Table 3. |
| Dropout Voltage | 100mV @ IOUT = 100µA; 320mV @ IOUT = 100mA - enables regulation even when VIN approaches VOUT, critical for battery end-of-life operation. |
| PSRR | 60dB @ 1kHz - suppresses switching noise from upstream DC/DC converters feeding the LDO input. |
| Quiescent Current | 36µA @ IOUT = 100µA - extends battery life in always-on sensor nodes and portable instrumentation. |
| Thermal Shutdown | Active at TJ ≈ +150°C - prevents damage during sustained overload or poor PCB heat sinking. |
Pinout & Package
SOT25 (SC-74A) package: 5-pin surface-mount, 3.0mm × 1.6mm footprint, 1.1mm height, lead-free matte tin plating, moisture sensitivity level 1 (J-STD-020).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Input voltage supply | Accepts 2.3V–24V; requires 1.0µF ceramic input capacitor for stability and transient response. |
| 2 (GND) | Ground reference | Primary return path for load, bias, and enable circuits; must be low-impedance connection to minimize noise coupling. |
| 3 (EN) | Enable control input | Active-high logic: >2.0V enables regulator; <0.4V disables output and reduces IQ to ≤1.0µA. |
| 4 (ADJ/NC) | Adjust/No-connect terminal | No-connect for fixed-output variants; left floating or grounded per layout best practice-no external components required. |
| 5 (VOUT) | Regulated output | Delivers 1.5V ±2% to load; requires 2.2µF ceramic output capacitor for stability and ripple suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Wide input voltage range | 2.3V–24V enables direct connection to unregulated battery or industrial bus without pre-buck stage. |
| Ultra-low dropout | 100mV at light load allows operation down to VIN = 1.6V for 1.5V output-critical for single-cell LiFePO₄ systems. |
| Low-noise, high-PSRR regulation | 60dB rejection at 1kHz and 30µVRMS output noise support sensitive analog/RF circuitry without additional filtering. |
| Integrated protection | Thermal shutdown, overcurrent limit, and reverse-current blocking eliminate need for external protection components. |
| Low-ESR capacitor compatible | Stable with 2.2µF X5R/X7R ceramic output cap-reduces board area vs. tantalum or electrolytic alternatives. |
Applications
| USB-Powered IoT Sensor Node | Industrial 24V Field Transmitter |
|---|---|
|
Use Scenario: Low-power environmental sensor node powered via USB-C port with intermittent BLE transmission. IC Role / Device Role / Timing Role: Provides clean 1.5V bias to ADC, temperature sensor, and BLE SoC core logic under varying input (4.75–5.25V) and load (10µA–150mA). Use Value: 36µA quiescent current extends battery backup runtime; 60dB PSRR rejects USB switcher noise; EN pin enables sleep-mode power gating. |
Use Scenario: 4–20mA loop-powered transmitter operating from 24V industrial rail with local 1.5V digital logic supply. IC Role / Device Role / Timing Role: Regulates 24V input to stable 1.5V for microcontroller I/O and signal conditioning circuitry in harsh ambient conditions (−40°C to +125°C). Use Value: 2.3V–24V input range accommodates brownout and surge events; thermal shutdown protects during enclosure overheating; ±2% accuracy ensures consistent ADC reference scaling. |
| Portable Medical Pulse Oximeter | Automotive Cabin Infotainment MCU Core Rail |
|
Use Scenario: Battery-operated handheld oximeter using single Li-ion cell (2.7–4.2V) powering LED drivers and analog front-end. IC Role / Device Role / Timing Role: Supplies regulated 1.5V to precision op-amps and photodiode transimpedance stages, rejecting switching noise from boost converter. Use Value: 100mV dropout preserves headroom at battery EOL; 30µVRMS noise avoids signal corruption in µV-level photodiode currents; reverse-current protection prevents battery drain during shutdown. |
Use Scenario: Low-voltage core rail for automotive infotainment SoC requiring 1.5V at ≤150mA from 12V vehicle battery (with transient spikes up to 24V). IC Role / Device Role / Timing Role: Post-regulator for SoC core domain, providing clean, accurate 1.5V under cold-crank (6.5V) and load-dump (36V) conditions. Use Value: 24V absolute max rating withstands load-dump transients; ±2% output accuracy maintains SoC timing margins; SOT25 package supports automated optical inspection in high-reliability assembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low dropout linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1703T-1502E/MB | 1.5V fixed, 250mA, 600mV dropout @ 250mA, 3µA IQ, SOT23-5 | Higher dropout limits use below 2.1V input; lower IQ benefits ultra-low-power sleep modes. | Select when minimum IQ dominates design priority and input headroom exceeds 600mV. |
| Torex XC6219B152MR-G | 1.5V fixed, 300mA, 160mV dropout @ 100mA, 1.25µA IQ, SOT25 | Lower dropout than AP2205 at medium loads but rated only to 6V VIN-unsuitable for 12V/24V systems. | Select for sub-6V battery applications where tighter dropout and lower IQ justify reduced input range. |
Compared with MCP1703T-1502E/MB and XC6219B152MR-G, the AP2205-15W5-7 uniquely balances wide-input capability (2.3–24V), ultra-low dropout at light loads (100mV), and integrated protections-making it optimal for mixed-supply industrial and portable systems where input voltage variability and reliability are primary constraints.
Availability
AP2205-15W5-7 is available at Aetrix Electronics and suitable for USB-powered IoT sensors, industrial 24V field transmitters, portable medical devices, and automotive cabin electronics requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for AP2205-15W5-7 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, with emphasis on power management, signal integrity, and protection devices for industrial, computing, and consumer markets.
The AP2205 series belongs to Diodes' high-voltage ULDO regulator product line, engineered specifically for battery-powered and wide-input industrial applications demanding low noise, high PSRR, and robust fault protection without external components.
FAQ
What is the minimum input voltage required for regulation at 1.5V output?
The AP2205-15W5-7 requires VIN ≥ 2.3V to operate, but regulation is only guaranteed when VIN ≥ VOUT + VDROP. At 100µA load, VDROP = 100mV, so VIN ≥ 1.6V suffices-but datasheet specifies 2.3V minimum for full parameter compliance across temperature and process variation.
Can the AP2205-15W5-7 be used with ceramic output capacitors smaller than 2.2µF?
No. The datasheet specifies 2.2µF minimum ceramic output capacitance (X5R/X7R) for stability across all operating conditions. Using smaller values risks oscillation or degraded transient response, especially under load steps from 1mA to 150mA.
Does the EN pin require a pull-up resistor when interfaced with a 1.8V GPIO?
Yes. Since the EN "high" threshold is 2.0V minimum, a 1.8V GPIO cannot reliably enable the device. A level-shifter or pull-up to ≥2.0V (e.g., to 3.3V rail) is required; alternatively, use an open-drain driver with external pull-up.
Is the AP2205-15W5-7 qualified for automotive applications per AEC-Q100?
No. While Diodes offers AEC-Q100-qualified variants in the AP2205 family (e.g., AP2205Q series), the AP2205-15W5-7 is a standard-grade part. Automotive use requires explicit qualification confirmation from Diodes' automotive team and PPAP documentation.
AP2205-15W5-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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):
- -
- Current - Output:
- 250mA
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- 60dB (100Hz ~ 1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-25
AP2205-15W5-7 FAQ
1.How can I place an order for AP2205-15W5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2205-15W5-7 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 AP2205-15W5-7 reliable?
The price and inventory of AP2205-15W5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2205-15W5-7 is usually 5 days.
3.What payment methods are accepted for AP2205-15W5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2205-15W5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2205-15W5-7?
AP2205-15W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2205-15W5-7 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 AP2205-15W5-7?
For technical support, including AP2205-15W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2205-15W5-7 requirements.
6.How does Aetrix verify that AP2205-15W5-7 is sourced from the original manufacturer or authorized distributors?
All AP2205-15W5-7 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 AP2205-15W5-7 meets industry standards.
7.What is the process for return or replacement of AP2205-15W5-7?
All AP2205-15W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP2205-15W5-7, 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 AP2205-15W5-7 part is unused and in its original packaging.
Return procedure for AP2205-15W5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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