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Diodes Incorporated AP7384-50Y-13
- Part No.:
- AP7384-50Y-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-243AA
- Datasheet:
-
AP7384-50Y-13.pdf
- Description:
- IC REG LIN 5V SOT89 T&R 2.5K
- Quantity:
- Payment:
- Shipping:
Inventory:2,829
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Product details
Overview
AP7384-50Y-13 from Diodes Incorporated is a fixed 5.0V ultra-low dropout (ULDO) linear regulator IC designed for space-constrained, battery-powered systems requiring stable output under wide input variation. It delivers up to 50mA with 500mV dropout at full load, ±2% output voltage accuracy, 2.5µA quiescent current, and operates across 3.3V–40V input range - ideal for portable instrumentation and USB-powered meters.
For engineers reviewing the AP7384-50Y-13 datasheet, AP7384-50Y-13 pinout, AP7384-50Y-13 application, or AP7384-50Y-13 equivalent, key selection criteria include input voltage headroom, thermal performance in SOT89, low-IQ operation in sleep modes, and compatibility with ceramic output capacitors without ESR requirements.
Technical Context
The AP7384-50Y-13 integrates a precision voltage reference, error amplifier, resistor feedback network, current-limit circuit, and enable-controlled pass transistor in a monolithic CMOS design. Its architecture supports stable regulation down to 500mV VIN–VOUT differential while maintaining ±100ppm/°C temperature coefficient and 0.05%/V line regulation.
Thermal shutdown activates at +160°C with +20°C hysteresis, and short-circuit protection limits output current to 50mA. The device requires no external compensation and achieves 60dB PSRR at 1kHz with 1µF input and 2.2µF ceramic output capacitors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0V ±2% - ensures stable MCU core or sensor biasing without external resistors. |
| Input Voltage Range | 3.3V to 40V - supports direct connection to unregulated 12V/24V rails or multi-cell battery stacks. |
| Max Output Current | 50mA - sufficient for low-power microcontrollers, RTCs, and analog front-ends. |
| Dropout Voltage | 500mV @ 50mA - enables regulation from 5.5V input when VOUT = 5.0V, minimizing power loss. |
| Quiescent Current | 2.5µA @ zero load - extends battery life in always-on metering applications. |
| PSRR | 60dB @ 1kHz - suppresses ripple from noisy DC-DC converters feeding the LDO input. |
| Thermal Shutdown | +160°C activation with +20°C hysteresis - prevents permanent damage during sustained overload or poor PCB heatsinking. |
Pinout & Package
AP7384-50Y-13 is housed in a thermally enhanced SOT89-3 package (4.6mm × 2.6mm × 1.6mm), optimized for PCB heat dissipation via the exposed tab connected to GND. Pin 1 (VIN) accepts up to 40V input; Pin 2 (GND) serves as both power and thermal reference; Pin 3 (VOUT) delivers regulated 5.0V with low noise and fast transient response.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Unregulated input supply | Accepts 3.3–40V; internal overvoltage clamp protects against 45V transients. |
| 2 (GND) | Power and thermal reference node | Connected to exposed tab; must be tied to large copper pour for θJA = 125°C/W thermal performance. |
| 3 (VOUT) | Regulated output terminal | Delivers 5.0V ±2% with <0.5% load regulation from 1–50mA; stable with ≥2.2µF ceramic capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| Wide input range (up to 40V) | Eliminates need for pre-regulation stages in industrial 24V bus or automotive load-dump tolerant designs. |
| Ultra-low IQ (2.5µA) | Reduces standby power in battery-operated e-meters to <13nW per volt of input, extending shelf life. |
| Ceramic capacitor compatible | Enables use of small, high-reliability 0603/0805 MLCCs without ESR stabilization networks. |
| Thermal shutdown + hysteresis | Prevents thermal runaway during intermittent overload while allowing automatic recovery after cooldown. |
| ±2% output accuracy | Meets ADC reference and sensor excitation tolerances without post-production trimming. |
Applications
| Smart Electricity Meters | Portable Medical Sensors |
|---|---|
|
Use Scenario: Powering metrology ASICs and real-time clocks in Class 0.2 revenue-grade e-meters operating from 3.3–24V DC rails. IC Role / Device Role / Timing Role: Primary 5.0V LDO supplying isolated ADC reference and microcontroller I/O domain. Use Value: 500mV dropout enables operation directly from 5.5V buck converter output, reducing BOM count and board area. |
Use Scenario: Providing clean 5.0V bias to low-noise analog front-ends in handheld pulse oximeters and glucose monitors. IC Role / Device Role / Timing Role: Low-noise, low-IQ supply for op-amps and sigma-delta ADCs during battery-powered measurement cycles. Use Value: 2.5µA quiescent current extends single-CR2032 battery life to >2 years in intermittent-sampling mode. |
| Laptop Peripheral Modules | USB-Powered Test Equipment |
|
Use Scenario: Regulating 5.0V for USB-C accessory controllers and Type-C PD negotiation ICs in docking stations. IC Role / Device Role / Timing Role: Secondary LDO decoupling USB 5V bus noise before powering sensitive USB PHY and firmware memory. Use Value: 60dB PSRR at 1kHz rejects switching noise from upstream DC-DC converters, preventing USB enumeration failures. |
Use Scenario: Powering handheld multimeters and logic analyzers drawing <50mA from USB host ports. IC Role / Device Role / Timing Role: Input-stage regulator accepting variable USB port voltage (4.75–5.25V) and delivering stable 5.0V for digital logic and display drivers. Use Value: ±2% output tolerance ensures consistent LCD contrast and microcontroller clock stability across USB source variations. |
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 |
|---|---|---|---|
| MCP1703T-5002E/MB | 45V max input, 250mV dropout @ 250mA, 3.5µA IQ, SOT23-5 package | Higher current capability but larger dropout margin required; less suitable for 5.5V input scenarios | Select when >50mA load or tighter thermal constraints demand smaller package with higher θJA |
| AP7361D-50Y-13 | Same manufacturer, 500mA output, 300mV dropout @ 500mA, 5µA IQ, SOT89-3 | Over-specified current rating increases cost and die size; higher IQ reduces battery runtime | Choose only if future design scaling requires >100mA headroom or dynamic load step response is critical |
Compared with MCP1703T-5002E/MB and AP7361D-50Y-13, the AP7384-50Y-13 offers optimal balance of ultra-low IQ, minimal dropout, and SOT89 thermal performance for sub-50mA applications - avoiding unnecessary cost, size, or power overhead.
Availability
AP7384-50Y-13 is available at Aetrix Electronics and suitable for smart electricity meters, portable medical sensors, and USB-powered test equipment requiring stable component supply with guaranteed long-term manufacturability.
Supply support for AP7384-50Y-13 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 for industrial, computing, consumer, and communications markets.
The AP7384 series belongs to Diodes' high-voltage ULDO product line, engineered specifically for battery-powered and wide-input industrial instrumentation where low quiescent current and robust thermal protection are mandatory.
FAQ
What is the maximum allowable input voltage for AP7384-50Y-13?
The absolute maximum input voltage is 45V, but the recommended operating range is 3.3V to 40V. Operation above 40V risks exceeding thermal limits under load and violates the specified safe operating area; sustained 45V input may trigger internal overvoltage clamping and reduce reliability.
Can AP7384-50Y-13 operate with a 5.2V USB input?
Yes - with 5.2V input and 5.0V output, the 200mV headroom exceeds the minimum required for regulation. Dropout is specified at 500mV @ 50mA, so light loads (<10mA) will maintain regulation even below 5.1V input, enabling robust USB port compatibility.
Is an input capacitor required for stable operation?
A 1.0µF ceramic input capacitor is specified in the datasheet and required for EMI suppression and transient response. Omitting it may cause oscillation during fast input voltage steps or increase susceptibility to conducted noise from upstream converters.
Does AP7384-50Y-13 have built-in reverse polarity protection?
No - the device lacks reverse-voltage blocking. Applying reversed input voltage (e.g., –5V on VIN) will forward-bias internal junctions and cause irreversible damage. External series diode or MOSFET protection is required in systems with potential polarity reversal.
AP7384-50Y-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-243AA
- Packaging:
- Tape & Reel (TR)
- 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:
- Surface Mount
- Supplier Device Package:
- SOT-89-3
AP7384-50Y-13 FAQ
1.How can I place an order for AP7384-50Y-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7384-50Y-13 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 AP7384-50Y-13 reliable?
The price and inventory of AP7384-50Y-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7384-50Y-13 is usually 5 days.
3.What payment methods are accepted for AP7384-50Y-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7384-50Y-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7384-50Y-13?
AP7384-50Y-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7384-50Y-13 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 AP7384-50Y-13?
For technical support, including AP7384-50Y-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7384-50Y-13 requirements.
6.How does Aetrix verify that AP7384-50Y-13 is sourced from the original manufacturer or authorized distributors?
All AP7384-50Y-13 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 AP7384-50Y-13 meets industry standards.
7.What is the process for return or replacement of AP7384-50Y-13?
All AP7384-50Y-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP7384-50Y-13, 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 AP7384-50Y-13 part is unused and in its original packaging.
Return procedure for AP7384-50Y-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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