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Diodes Incorporated AP7383-41WW-7
- Part No.:
- AP7383-41WW-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP7383-41WW-7.pdf
- Description:
- LDO CMOS LOWCURR SOT25 T&R 3K
- Quantity:
- Payment:
- Shipping:
Inventory:4,741
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Product details
Overview
AP7383-41WW-7 from Diodes Incorporated is a fixed-output 4.15V 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, and only 1.8–3.0µA ground current across load. It operates from 3.5V to 30V input and integrates thermal shutdown, current limiting, and enable control - deployed in portable instrumentation and USB-powered peripherals.
For engineers reviewing the AP7383-41WW-7 datasheet, AP7383-41WW-7 pinout, AP7383-41WW-7 application, or AP7383-41WW-7 equivalent, key selection criteria include its 4.15V fixed output, SOT25 (WW) package footprint, 30V max input rating, thermal shutdown threshold of +160°C, and compatibility with low-ESR ceramic capacitors without external compensation.
Technical Context
The AP7383-41WW-7 implements a precision bandgap reference and error amplifier driving a PMOS pass transistor, enabling low dropout operation independent of output voltage. Its internal current-limit circuit activates at 150mA typical, and the EN pin provides logic-level on/off control with 1µA input current and 2.0V/0.4V high/low thresholds.
Thermal protection uses a junction-sensing circuit with +160°C trip point and +20°C hysteresis, while line regulation holds within ±0.05%/V and load regulation within ±0.5% across 1–150mA. Output voltage temperature coefficient is ±100ppm/°C over –40°C to +125°C operating junction range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 4.15V ±1% - ensures stable supply for 4.2V Li-ion–biased analog circuits or 3.3V/5V mixed-rail I/O interfaces. |
| Input Voltage Range | 3.5V to 30V - supports wide-input industrial power rails, automotive battery transients, and multi-cell battery stacks. |
| Max Output Current | 150mA - sufficient for powering microcontroller cores, sensors, or RF front-end biasing in portable devices. |
| Dropout Voltage | 360–580mV @ 50mA - enables regulation down to VIN = 4.51V, critical for extending battery runtime in 4.2V nominal systems. |
| Ground Current | 1.8–3.0µA @ full load - minimizes quiescent drain in always-on monitoring circuits and sleep-mode subsystems. |
| Thermal Shutdown | +160°C trip with +20°C hysteresis - prevents latch-up during sustained overload or poor PCB thermal design. |
| Enable Threshold | EN "High" ≥2.0V, "Low" ≤0.4V - compatible with 1.8V/3.3V/5V GPIO without level-shifting. |
Pinout & Package
SOT25 (WW) package: 5-pin surface-mount, 2.8mm × 2.9mm body, 0.95mm height, matte tin-plated leads, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VIN | Main input supply connection; accepts up to 30V DC with transient robustness for unregulated sources. |
| 2 | GND | Analog/digital ground reference; must be low-impedance to minimize noise coupling into error amplifier. |
| 3 | VOUT | Regulated 4.15V output; requires 1µF ceramic capacitor placed <1mm from pin for stability. |
| 4 | NC | No internal connection; recommended tied to GND for enhanced thermal conduction via PCB copper pour. |
| 5 | EN | Active-high enable input; pulls device into ultra-low standby mode (<0.01µA) when driven low. |
Key Features
| Feature | Design Value |
|---|---|
| Wide Input Range (3.5–30V) | Eliminates need for pre-regulation stages in 12V/24V industrial or automotive auxiliary supplies. |
| Ultra-Low Quiescent Current (1.8–3.0µA) | Extends battery life in IoT edge nodes where sleep current dominates total energy budget. |
| Ceramic Capacitor Compatible | Enables use of small, high-reliability 0402/0603 MLCCs without ESR requirements or external compensation. |
| Integrated Thermal Shutdown | Provides autonomous fault recovery without external thermal sensors or system-level watchdog intervention. |
| ±1% Output Accuracy | Meets tight tolerance requirements for ADC references, sensor excitation, and precision analog signal chains. |
Applications
| Portable Medical Sensors | USB-Powered Test Equipment |
|---|---|
Use Scenario: Continuous glucose monitor (CGM) with Bluetooth LE radio and electrochemical sensor front-end. IC Role / Device Role / Timing Role: Primary 4.15V LDO supplying analog sensor bias, op-amp rails, and BLE SoC I/O domain. Use Value: Low 1.8µA ground current preserves coin-cell battery life beyond 6 months; ±1% accuracy ensures repeatable sensor calibration. | Use Scenario: Handheld oscilloscope probe interface powered solely from USB 5V bus. IC Role / Device Role / Timing Role: Step-down regulator generating clean 4.15V rail for high-speed ADC reference and FPGA I/O banks. Use Value: 500mV dropout allows full regulation even as USB port voltage sags to 4.5V under load; ceramic-capacitor compatibility reduces BOM count. |
| Industrial Data Loggers | Smart Home Hub Power Management |
Use Scenario: Battery-backed environmental logger using LoRaWAN for remote transmission. IC Role / Device Role / Timing Role: Main system regulator enabling low-power MCU, temperature/humidity sensor, and LoRa transceiver sequencing. Use Value: EN pin enables precise power gating of non-critical subsystems; thermal shutdown protects against enclosure overheating in sealed enclosures. | Use Scenario: Voice-controlled smart speaker with always-on microphone array and Wi-Fi/BLE coexistence. IC Role / Device Role / Timing Role: Secondary LDO delivering noise-immune 4.15V to MEMS microphone bias and audio codec analog section. Use Value: Excellent line/load regulation (±0.05%/V, ±0.5%) maintains SNR across varying USB adapter quality and battery charge state. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output ULDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1703T-4102E/MB | 4.1V output (0.15V lower), 250mV dropout @ 250mA, 2.5µA IQ, no EN pin | Lacks enable control and has tighter input range (2.7–16V); unsuitable for 24V industrial inputs or sequenced power-down | Select only if EN functionality is unnecessary and input never exceeds 16V. |
| TPS7A2041PDBVR | 4.1V output, 130mV dropout @ 300mA, 6.5µA IQ, active-low EN, 2.5–6.0V input range | Narrower input range excludes direct replacement in 12V/24V systems; higher IQ increases standby drain | Prefer only for low-dropout priority in sub-6V battery designs where 6.5µA IQ is acceptable. |
Compared with MCP1703T-4102E/MB and TPS7A2041PDBVR, the AP7383-41WW-7 uniquely combines 30V input tolerance, 4.15V precision output, enable control, and sub-3µA quiescent current - making it optimal for wide-input, low-power, and sequenced power architectures.
Availability
AP7383-41WW-7 is available at Aetrix Electronics and suitable for portable medical sensors, USB-powered test equipment, and industrial data loggers requiring stable component supply with long-term manufacturability and consistent parametric performance.
Supply support for AP7383-41WW-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 company specializing in discrete, analog, and mixed-signal solutions, with manufacturing certified to IATF 16949 and product compliance to AEC-Q200 for industrial and automotive applications.
The AP7383 series belongs to Diodes' high-voltage ULDO regulator product line, engineered specifically for battery-powered and wide-input industrial systems demanding precision, low quiescent current, and robust thermal protection without external components.
FAQ
What is the minimum input voltage required for regulation at 4.15V output?
The AP7383-41WW-7 requires VIN ≥ VOUT + VDROP. At 50mA load, dropout is 360–580mV, so minimum VIN is 4.51–4.73V. The datasheet specifies 3.5V absolute minimum, but regulation is only guaranteed above VOUT + dropout across temperature and load.
Can the AP7383-41WW-7 operate without an output capacitor?
No. A minimum 1µF ceramic capacitor is mandatory at VOUT for stability and transient response. Omitting it causes oscillation and potential damage. The device is optimized for low-ESR ceramics and does not require series resistance or tantalum alternatives.
Is the NC pin on the SOT25 (WW) package required to be grounded?
The NC pin (Pin 4) has no internal connection but is thermally tied to the die paddle. Diodes recommends connecting it to GND via PCB copper pour to improve thermal dissipation and reduce junction temperature by up to 15°C under full load.
Does the AP7383-41WW-7 support reverse polarity or reverse current protection?
No. The AP7383-41WW-7 lacks integrated reverse-voltage or reverse-current blocking. If input can be reversed or back-driven, external protection (e.g., series Schottky diode or ideal diode controller) must be added per system safety requirements.
AP7383-41WW-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):
- 4.1V
- 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
AP7383-41WW-7 FAQ
1.How can I place an order for AP7383-41WW-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7383-41WW-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 AP7383-41WW-7 reliable?
The price and inventory of AP7383-41WW-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7383-41WW-7 is usually 5 days.
3.What payment methods are accepted for AP7383-41WW-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7383-41WW-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7383-41WW-7?
AP7383-41WW-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7383-41WW-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 AP7383-41WW-7?
For technical support, including AP7383-41WW-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7383-41WW-7 requirements.
6.How does Aetrix verify that AP7383-41WW-7 is sourced from the original manufacturer or authorized distributors?
All AP7383-41WW-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 AP7383-41WW-7 meets industry standards.
7.What is the process for return or replacement of AP7383-41WW-7?
All AP7383-41WW-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7383-41WW-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 AP7383-41WW-7 part is unused and in its original packaging.
Return procedure for AP7383-41WW-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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