My Inquiry
My Account
Diodes Incorporated AP7384-50V-A
- Part No.:
- AP7384-50V-A
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Datasheet:
-
AP7384-50V-A.pdf
- Description:
- IC REG LIN 5V 50MA TO92 AMMO 2K
- Quantity:
- Payment:
- Shipping:
Inventory:3,016
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AP7384-50V-A from Diodes Incorporated is a fixed-output 5.0V ultra-low dropout (ULDO) linear regulator IC designed for space-constrained, battery-powered systems. It operates across a wide 3.3V–40V input range, delivers up to 50mA output current with ±2% output voltage accuracy, and features 500mV dropout at full load - enabling stable regulation even under low VIN–VOUT margin. It is deployed in portable information appliances and e-meters where low quiescent current (2.5µA at zero load) and thermal shutdown protection are critical.
For engineers reviewing the AP7384-50V-A datasheet, AP7384-50V-A pinout, AP7384-50V-A application, or AP7384-50V-A equivalent, key selection criteria include its TO92-compatible 3-pin configuration, 40V absolute maximum input rating, 50mA current limit, -40°C to +125°C operating junction temperature, and compatibility with low-ESR ceramic capacitors without external compensation.
Technical Context
The AP7384-50V-A integrates a precision voltage reference, error amplifier, resistor network for fixed 5.0V output, current-limit circuitry, and chip-enable logic - all in a monolithic CMOS process. Its architecture supports direct replacement of legacy 78Lxx regulators while delivering significantly lower dropout and ground current.
It implements thermal shutdown at +160°C with +20°C hysteresis and short-circuit protection via foldback current limiting. Line regulation is 0.05%/V and load regulation is 0.5%, ensuring stable output across input and load transients in non-switching power domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0V ±2% - ensures compatibility with 5V logic and analog subsystems without external feedback. |
| Input Voltage Range | 3.3V to 40V - supports wide-input industrial and battery-supplied applications including 12V/24V rails and Li-ion+boost configurations. |
| Dropout Voltage | 500mV @ 50mA - enables regulation down to VIN = 5.5V, critical for maintaining 5V supply during brownout conditions. |
| Quiescent Current | 2.5µA @ IOUT = 0 - extends battery life in always-on metering and sensor nodes. |
| Current Limit | 50mA - provides robust short-circuit protection without latch-up, suitable for driving small peripherals or bias networks. |
| Thermal Shutdown | +160°C with +20°C hysteresis - prevents permanent damage during sustained overload or poor heatsinking in TO92 package. |
| PSRR | 60dB @ 1kHz - suppresses ripple from upstream switching supplies, improving noise-sensitive analog performance. |
Pinout & Package
AP7384-50V-A is housed in a TO92 (Ammo Packing) through-hole package - compact, cost-effective, and compatible with legacy PCB layouts requiring axial-leaded components. The package features three leads with standardized mechanical dimensions: 4.3–4.7mm body width, 12.5–14.5mm overall length, and 2.54mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VIN | Unregulated input supply - accepts up to 45V absolute max; requires ≥1µF input capacitor for stability. |
| 2 | GND | Analog/digital ground reference - must be connected directly to low-impedance PCB ground plane to ensure regulation accuracy. |
| 3 | VOUT | Stable 5.0V regulated output - supports up to 50mA; requires ≥2.2µF low-ESR ceramic capacitor for transient response and PSRR optimization. |
Key Features
| Feature | Design Value |
|---|---|
| Wide input voltage range | Supports 3.3V–40V operation - eliminates need for pre-regulation in multi-rail industrial systems. |
| Ultra-low quiescent current | 2.5µA at zero load - enables >10-year battery life in e-meter standby mode with periodic wake-up. |
| Low-ESR capacitor compatibility | Stable with ≥2.2µF X5R/X7R ceramics - avoids costly tantalum or electrolytic capacitors and reduces board area. |
| Thermal and short-circuit protection | Auto-recovering shutdown at +160°C and foldback current limiting - ensures reliability in unattended deployments. |
| High output accuracy | ±2% over -40°C to +125°C - meets tight tolerance requirements for ADC references and microcontroller VDD rails. |
Applications
| Smart Electricity Meters | Portable Diagnostic Tools |
|---|---|
|
Use Scenario: Powering metrology ASICs and real-time clocks in Class 0.5S utility meters operating from 3-phase AC rectified rails. IC Role / Device Role / Timing Role: Primary 5V LDO supplying isolated communication interfaces and precision analog front-ends. Use Value: 0.05%/V line regulation maintains ADC reference stability despite ±10% grid voltage variation; thermal shutdown prevents field failure during enclosure overheating. |
Use Scenario: Providing clean 5V bias to handheld multimeters and insulation testers powered by 4×AA alkaline cells (6V fresh, ~4.2V depleted). IC Role / Device Role / Timing Role: Post-regulator after buck converter or direct battery feed, ensuring constant 5V for MCU and display driver. Use Value: 500mV dropout allows full 5V output until battery drops below 5.5V - extending usable runtime by ~18% versus standard 78L05. |
| Laptop Peripheral Adapters | Industrial Sensor Nodes |
|
Use Scenario: Regulating USB-C PD negotiated voltages (5V/9V/15V/20V) down to stable 5V for legacy USB peripherals in docking stations. IC Role / Device Role / Timing Role: Secondary LDO stage decoupling high-frequency switching noise from upstream DC-DC converters. Use Value: 60dB PSRR at 1kHz attenuates 2MHz buck converter ripple by 1000×, preventing digital noise coupling into USB data lines. |
Use Scenario: Powering LoRaWAN or NB-IoT sensor modules in remote environmental monitoring enclosures exposed to -40°C winter temperatures. IC Role / Device Role / Timing Role: Cold-tolerant 5V supply for microcontroller, RF transceiver, and analog sensor conditioning circuitry. Use Value: ±100ppm/°C output drift ensures <±0.5% total VOUT variation across full -40°C to +85°C operating range - preserving sensor calibration integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1703-5002E/TO | 5.0V output, 250mA rating, 600mV dropout @ 250mA, SOT23-5 package with EN pin. | Higher current capacity but larger dropout and no thermal shutdown - suited for higher-power loads where footprint permits. | Select when >50mA load current or enable control is required; not drop-in due to different pinout and thermal behavior. |
| AP7361D-50SA-7 | 5.0V output, 300mA rating, 300mV dropout @ 300mA, SOT23-3 package, 4µA IQ. | Lower dropout and higher current, but rated only to 36V VIN max and lacks short-circuit foldback. | Prefer for compact battery-powered designs needing <300mV dropout; avoid in 40V industrial rails or fault-prone environments. |
Compared with MCP1703-5002E/TO and AP7361D-50SA-7, the AP7384-50V-A uniquely balances 40V input tolerance, TO92 fit, thermal shutdown, and sub-3µA quiescent current - making it optimal for cost-sensitive, thermally constrained, wide-input metering and portable applications where 50mA suffices.
Availability
AP7384-50V-A is available at Aetrix Electronics and suitable for smart electricity meters, portable diagnostic tools, and industrial sensor nodes requiring stable component supply, long-lifecycle support, and RoHS-compliant through-hole packaging.
Supply support for AP7384-50V-A 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 AP7384 series belongs to Diodes' ULDO regulator product line, engineered specifically for battery-powered and wide-input industrial applications demanding ultra-low IQ, high accuracy, and robust fault protection in compact packages.
FAQ
What is the maximum input voltage the AP7384-50V-A can safely handle?
The AP7384-50V-A has an absolute maximum input voltage rating of 45V, with recommended operating range from 3.3V to 40V. Exceeding 45V risks permanent damage to the internal pass transistor and reference circuitry, regardless of duration or current level. Designers should implement input clamping or pre-regulation if system rails may transiently exceed this limit.
Does the AP7384-50V-A require an external bypass capacitor on the output?
Yes - a minimum 2.2µF low-ESR ceramic capacitor is required on VOUT for stability, transient response, and PSRR performance. The datasheet confirms stable operation with X5R/X7R dielectrics; using smaller values or high-ESR electrolytics may cause oscillation or degraded load regulation. Placement within 5mm of the VOUT and GND pins is critical.
Can the AP7384-50V-A be used in automotive applications?
The AP7384-50V-A is not AEC-Q100 qualified and is not intended for automotive safety-critical systems. While it operates across -40°C to +125°C junction temperature, Diodes explicitly states that automotive-grade versions require separate qualification, PPAP capability, and IATF 16949 manufacturing - none of which apply to the AP7384-50V-A part number.
Is there a pin-compatible replacement for the AP7384-50V-A in SOT89 or SOT23 packages?
No - the AP7384-50V-A uses the TO92 (Ammo Packing) pinout (VIN-GND-VOUT), whereas the SOT89 and SOT23 variants (e.g., AP7384-50Y-13, AP7384-50SA-7) use reversed pin assignments (VIN-VOUT-GND for SOT89; VIN-VOUT-GND for SOT23). Direct PCB replacement requires layout revision due to incompatible terminal mapping and thermal pad requirements.
AP7384-50V-A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Packaging:
- Tape & Box (TB)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 50mA
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- 25 µA
- PSRR:
- -
- Control Features:
- -
- Protection Features:
- Current Limit, Thermal Shutdown
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-92
AP7384-50V-A FAQ
1.How can I place an order for AP7384-50V-A through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7384-50V-A 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 AP7384-50V-A reliable?
The price and inventory of AP7384-50V-A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7384-50V-A is usually 5 days.
3.What payment methods are accepted for AP7384-50V-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7384-50V-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7384-50V-A?
AP7384-50V-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7384-50V-A 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 AP7384-50V-A?
For technical support, including AP7384-50V-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7384-50V-A requirements.
6.How does Aetrix verify that AP7384-50V-A is sourced from the original manufacturer or authorized distributors?
All AP7384-50V-A 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 AP7384-50V-A meets industry standards.
7.What is the process for return or replacement of AP7384-50V-A?
All AP7384-50V-A units undergo pre-shipment inspection (PSI). If there is an issue with AP7384-50V-A, 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 AP7384-50V-A part is unused and in its original packaging.
Return procedure for AP7384-50V-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP7384-50V-A Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…
Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …
Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.
Amplifier guide covering voltage, current and power amplification, gain, feedback, amplifier classes, audio and RF applications, op-amp circuits, transimpedance amplifiers, datasheet selection and trou…
