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Diodes Incorporated AP7383-36WW-7
- Part No.:
- AP7383-36WW-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP7383-36WW-7.pdf
- Description:
- LDO CMOS LOWCURR SOT25 T&R 3K
- Quantity:
- Payment:
- Shipping:
Inventory:4,661
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Product details
Overview
AP7383-36WW-7 from Diodes Incorporated is a fixed-output 3.6V ultra-low dropout (ULDO) linear regulator IC designed for space-constrained, battery-powered systems. It delivers up to 150mA output current with 500mV dropout at 50mA, ±1% output voltage accuracy over load/temperature, and only 1.8–3.0µA ground current at full load - enabling multi-year operation in coin-cell or Li-ion portable devices.
For engineers reviewing the AP7383-36WW-7 datasheet, AP7383-36WW-7 pinout, AP7383-36WW-7 application, or AP7383-36WW-7 equivalent, key selection criteria include its 3.5–30V input range, thermal shutdown at +160°C, EN pin control in SOT25-WW package, and compatibility with 1µF ceramic output capacitors without ESR requirements.
Technical Context
The AP7383-36WW-7 integrates a precision voltage reference, error amplifier, resistor network for fixed 3.6V output, current-limit circuit (150mA typ), and enable logic - all in a monolithic CMOS process. Its low-quiescent-current architecture maintains regulation down to 3.5V input while sustaining 3.6V output under 150mA load.
Thermal protection is implemented via junction-sensing with +160°C trip point and +20°C hysteresis; line regulation is 0.05%/V and load regulation is 0.5% across 1–150mA, ensuring stable rail integrity in variable-source environments like USB adapters or automotive accessory ports.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.6V ±1% (ensures reliable MCU I/O and sensor biasing without external feedback) |
| Input Voltage Range | 3.5V to 30V (supports direct connection to 12V/24V rails or degraded USB sources) |
| Max Output Current | 150mA (sufficient for microcontrollers, RF modules, and small displays) |
| Dropout Voltage | 360mV @ 50mA (enables >3.96V input-to-3.6V output margin at rated load) |
| Ground Current | 1.8–3.0µA @ 0–150mA (minimizes battery drain during sleep or standby modes) |
| Line Regulation | 0.05%/V (limits output drift to <1.8mV per volt input change) |
| Thermal Shutdown | +160°C with +20°C hysteresis (prevents latch-up during sustained overload or ambient rise) |
Pinout & Package
SOT25 (WW package): 5-pin surface-mount package with exposed thermal pad (pin 4 = GND, pin 5 = NC). Compact 2.9mm × 2.8mm footprint optimized for high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VIN | Main input supply connection; accepts 3.5–30V with internal overvoltage clamp |
| 2 | GND | Power ground reference and primary thermal path; connects to PCB copper pour |
| 3 | VOUT | Regulated 3.6V output; requires ≥1µF ceramic capacitor for stability |
| 4 | GND | Dedicated ground terminal for enhanced thermal dissipation and noise isolation |
| 5 | NC | No internal connection; recommended tied to GND to maximize thermal copper area |
Key Features
| Feature | Design Value |
|---|---|
| Wide Input Range (3.5–30V) | Eliminates need for pre-regulation stages when interfacing with unregulated wall adapters or vehicle batteries |
| Ultra-Low Quiescent Current (1.8µA) | Extends shelf life of battery-powered IoT sensors beyond 5 years in deep-sleep mode |
| Low-ESR Ceramic Cap Compatibility | Enables use of compact, high-reliability 0402/0603 MLCCs instead of bulkier tantalum or aluminum electrolytics |
| Enable Pin Control (EN) | Allows system-level power sequencing and zero-current shutdown via logic-level signal (2.0V high / 0.4V low) |
| Thermal Shutdown with Hysteresis | Prevents thermal runaway during transient overloads while avoiding oscillation near trip threshold |
Applications
| Portable Medical Sensors | USB-Powered Instrumentation |
|---|---|
Use Scenario: Continuous glucose monitor (CGM) using coin-cell battery and BLE radio. IC Role / Device Role / Timing Role: Primary 3.6V power rail regulator for analog front-end and Bluetooth SoC. Use Value: 1.8µA quiescent current extends 3V CR2032 battery life to >24 months in active monitoring mode. | Use Scenario: Handheld oscilloscope powered from USB 2.0 port (4.75–5.25V). IC Role / Device Role / Timing Role: Post-regulator generating clean 3.6V for ADC reference and FPGA I/O banks. Use Value: 0.05%/V line regulation ensures <±1.8mV reference drift despite USB port voltage sag under load. |
| Industrial Data Loggers | Automotive Accessory Modules |
Use Scenario: Remote temperature/humidity logger deployed in warehouses (-40°C to +85°C). IC Role / Device Role / Timing Role: Main supply for microcontroller, EEPROM, and environmental sensors. Use Value: ±100ppm/°C tempco and ±1% initial accuracy maintain sensor calibration integrity across full industrial temperature range. | Use Scenario: OBD-II dongle drawing power from vehicle 12V bus (9–16V nominal, up to 30V transients). IC Role / Device Role / Timing Role: Protected 3.6V rail for CAN controller and flash memory. Use Value: 30V absolute max input rating and thermal shutdown withstand automotive load-dump events without external TVS. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ULDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1703T-3602E/MB | 300mV dropout @ 250mA; 2.5µA IQ; no EN pin; SOT23-5 package | Lacks enable control and thermal hysteresis; lower max input (16V) | Select when board space is critical and enable functionality is unnecessary |
| TPS7A2036PDQNR | 175mV dropout @ 300mA; 25µA IQ; EN pin; 1.5% accuracy; X2SON-4 package | Higher quiescent current; tighter accuracy spec but no thermal hysteresis | Choose for ultra-low-dropout priority in low-temp environments where IQ is secondary |
Compared with MCP1703T-3602E/MB and TPS7A2036PDQNR, the AP7383-36WW-7 uniquely balances wide-input capability (30V), ultra-low IQ (1.8µA), integrated EN control, and thermal hysteresis - making it optimal for long-life, high-voltage-tolerant portable designs where both efficiency and robustness are required.
Availability
AP7383-36WW-7 is available at Aetrix Electronics and suitable for portable medical sensors, USB-powered instrumentation, industrial data loggers, and automotive accessory modules requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for AP7383-36WW-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 manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The AP7383 series belongs to Diodes' high-reliability linear regulator product line, engineered specifically for battery-constrained and wide-input industrial applications demanding precision, low power, and rugged thermal behavior.
FAQ
What is the minimum input voltage required for regulation at 3.6V output?
The AP7383-36WW-7 requires a minimum input voltage of 3.5V to maintain regulation. At 50mA load, its typical dropout is 360mV - meaning 4.0V input ensures stable 3.6V output. Below 3.5V, the device enters dropout and output tracks input minus VDROP.
Can the AP7383-36WW-7 be used with ceramic capacitors smaller than 1µF?
No - the datasheet specifies a minimum 1.0µF ceramic output capacitor for stability across all operating conditions. Using smaller values risks oscillation due to insufficient phase margin; the device is not characterized for <1µF COUT and may exhibit ringing or regulation loss.
Is pin 5 (NC) required to be connected externally?
Pin 5 is internally unconnected but must be externally tied to GND on the PCB. This maximizes copper area for thermal dissipation and reduces thermal resistance by ~15°C/W, directly improving power handling and reliability under continuous 150mA load.
Does the AP7383-36WW-7 support reverse-polarity protection?
No - the AP7383-36WW-7 lacks built-in reverse-polarity protection. Applying negative voltage to VIN or VOUT can cause irreversible damage. External protection (e.g., series Schottky diode or ideal diode controller) is required in systems prone to incorrect battery insertion or cable reversal.
AP7383-36WW-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):
- 30V
- Voltage - Output (Min/Fixed):
- 3.6V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.5V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 3 µA
- Current - Supply (Max):
- 3 µA
- PSRR:
- -
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-25
AP7383-36WW-7 FAQ
1.How can I place an order for AP7383-36WW-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7383-36WW-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 AP7383-36WW-7 reliable?
The price and inventory of AP7383-36WW-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7383-36WW-7 is usually 5 days.
3.What payment methods are accepted for AP7383-36WW-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7383-36WW-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7383-36WW-7?
AP7383-36WW-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7383-36WW-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 AP7383-36WW-7?
For technical support, including AP7383-36WW-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7383-36WW-7 requirements.
6.How does Aetrix verify that AP7383-36WW-7 is sourced from the original manufacturer or authorized distributors?
All AP7383-36WW-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 AP7383-36WW-7 meets industry standards.
7.What is the process for return or replacement of AP7383-36WW-7?
All AP7383-36WW-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7383-36WW-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 AP7383-36WW-7 part is unused and in its original packaging.
Return procedure for AP7383-36WW-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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