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Diodes Incorporated AP7384-50SA-7
- Part No.:
- AP7384-50SA-7
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AP7384-50SA-7.pdf
- Description:
- IC REG LIN 5V 50MA SOT23 T&R 3K
- Quantity:
- Payment:
- Shipping:
Inventory:3,251
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Product details
Overview
AP7384-50SA-7 from Diodes Incorporated is a fixed 5.0V, 50mA ultra-low dropout (ULDO) linear regulator in SOT23 package. It delivers ±2% output voltage accuracy over -40°C to +125°C, supports input voltages up to 40V, achieves 500mV dropout at full load, and draws only 2.5µA ground current at zero load-enabling long battery life in portable USB-powered meters and sensor nodes.
For engineers reviewing the AP7384-50SA-7 datasheet, AP7384-50SA-7 pinout, AP7384-50SA-7 application, or AP7384-50SA-7 equivalent, key selection criteria include wide VIN range (3.3–40V), low quiescent current for energy-constrained designs, thermal shutdown and short-circuit protection, and compatibility with low-ESR ceramic capacitors without external compensation.
Technical Context
The AP7384-50SA-7 integrates a precision voltage reference, error amplifier, resistor network for fixed 5.0V output, current-limit circuit (50mA typical), chip enable logic, and thermal shutdown trigger at +160°C with +20°C hysteresis. Its architecture enables stable regulation under fast load transients and wide input variation.
It operates across industrial temperature range (-40°C to +125°C junction), maintains ±0.5% load regulation (1–50mA), exhibits 60dB PSRR at 1kHz, and achieves 0.05%/V line regulation-making it suitable for noisy supply rails in metering and portable instrumentation where headroom is limited.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0V ±2% - ensures compatible logic-level supply for microcontrollers and sensors without external feedback. |
| Max Input Voltage | 40V - supports direct connection to unregulated 24V/36V industrial or automotive-derived rails. |
| Dropout Voltage | 500mV @ 50mA - enables regulation down to VIN = 5.5V, critical for battery-powered systems near end-of-life. |
| Ground Current | 2.5µA @ IOUT = 0mA - minimizes standby power loss in always-on metering and IoT edge nodes. |
| Current Limit | 50mA typical - provides robust short-circuit protection without external current-sense components. |
| PSRR | 60dB @ 1kHz - suppresses ripple from switching pre-regulators or noisy DC sources feeding the LDO. |
| Thermal Shutdown | +160°C with +20°C hysteresis - prevents permanent damage during sustained overload or poor PCB thermal design. |
Pinout & Package
AP7384-50SA-7 uses the SOT23-3 surface-mount package (2.9mm × 1.3mm × 1.0mm), optimized for space-constrained PCB layouts in portable equipment. Thermal resistance θJA is 166°C/W, requiring minimal copper area for thermal management in low-power applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SOT23) | VIN | Main input supply terminal; accepts 3.3–40V; requires 1µF ceramic input capacitor for stability. |
| 2 (SOT23) | VOUT | Regulated 5.0V output; connects to load and 2.2µF ceramic output capacitor for transient response. |
| 3 (SOT23) | GND | Power ground reference; must be low-impedance connection to minimize noise coupling and ensure regulation accuracy. |
Key Features
| Feature | Design Value |
|---|---|
| Wide input voltage range | Supports 3.3V–40V input without external components-eliminates need for pre-regulation in multi-rail systems. |
| Ultra-low quiescent current | 2.5µA at no load-extends battery runtime in always-on e-meter and sensor applications by >10× vs. standard LDOs. |
| Low-ESR capacitor compatibility | Stable with ≥2.2µF X5R/X7R ceramic output caps-reduces BOM count and board area vs. tantalum or electrolytic solutions. |
| Integrated protection | Thermal shutdown and current limit prevent failure during fault conditions-no external circuitry required for basic reliability. |
| High accuracy over temperature | ±2% VOUT tolerance across -40°C to +125°C-ensures consistent ADC reference and MCU operation without calibration. |
Applications
| Smart Electricity Meter | Portable Gas Detector |
|---|---|
|
Use Scenario: Powering metrology IC, RTC, and RF transceiver in battery-backed utility meter operating 15+ years on primary cell. IC Role / Device Role / Timing Role: Primary 5.0V supply rail regulator delivering stable voltage despite wide battery discharge curve (4.2V–2.8V) and intermittent 24V AC/DC auxiliary input. Use Value: 500mV dropout enables full regulation until battery reaches 5.5V; 2.5µA ground current extends shelf life and operational lifetime beyond 10 years. |
Use Scenario: Compact handheld gas analyzer using electrochemical sensors and low-power MCU, powered by two AA alkaline cells. IC Role / Device Role / Timing Role: Post-regulator converting noisy switched-capacitor boost output (up to 36V) to clean 5.0V for analog front-end and digital logic. Use Value: 60dB PSRR rejects switching noise; ±0.5% load regulation ensures consistent sensor biasing across varying display backlight loads. |
| Laptop Peripheral Dock | Industrial Handheld Scanner |
|
Use Scenario: USB-C powered docking station supplying 5.0V to multiple USB peripherals and status LEDs while drawing from variable 5–20V PD source. IC Role / Device Role / Timing Role: Local LDO for isolated 5.0V rail decoupled from upstream PD negotiation instability and cable voltage drop. Use Value: 40V max input tolerates transient surges on long cables; thermal shutdown protects against enclosure overheating during extended use. |
Use Scenario: Ruggedized barcode scanner with integrated imager, laser, and Bluetooth LE, powered by removable Li-ion pack (3.0–4.2V) with optional 12V vehicle adapter. IC Role / Device Role / Timing Role: Dual-input LDO accepting either battery or 12V accessory port, providing single 5.0V rail for all subsystems. Use Value: Wide VIN range eliminates need for separate regulators per input source; SOT23 footprint saves space in sealed IP65 housing. |
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 | 500mA output, higher IQ (2.5µA same), 6V max VIN, SOT23-3 | Higher current capacity but limited to 6V input-unsuitable for 24V industrial or automotive inputs. | Select when >50mA load current is required and input stays below 6V; avoid for wide-VIN metering or industrial use. |
| TPS7A2050PDBVR | 500mA output, 25µA IQ, 6V max VIN, SOT23-5 (enable pin) | Includes active-high enable and lower noise (12µVRMS), but lacks 40V input rating and thermal hysteresis. | Prefer for low-noise analog rails where enable control is needed and input is ≤6V; not viable for high-VIN field-deployed devices. |
Compared with MCP1703T-5002E/MB and TPS7A2050PDBVR, AP7384-50SA-7 uniquely balances 40V input tolerance, 50mA capability, sub-3µA quiescent current, and integrated thermal hysteresis-making it the only choice for space-limited, wide-input, battery-plus-line-powered portable instrumentation.
Availability
AP7384-50SA-7 is available at Aetrix Electronics and suitable for smart metering, portable gas detection, and industrial handheld scanners requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for AP7384-50SA-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, specializing in high-reliability power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.
The AP7384 series belongs to Diodes' ultra-low dropout linear regulator product line, designed specifically for battery-powered and wide-input-voltage portable instrumentation where efficiency, accuracy, and fault resilience are critical.
FAQ
What is the minimum input voltage required for regulation at 5.0V output?
The AP7384-50SA-7 requires VIN ≥ VOUT + VDROP. With a typical dropout of 500mV at 50mA, the minimum functional input is 5.5V. At lighter loads (e.g., 1mA), dropout drops to ~100mV, allowing regulation down to ~5.1V. The recommended operating VIN range starts at 3.3V per datasheet, but stable 5.0V output is only guaranteed above 5.5V under full load.
Can AP7384-50SA-7 be used with ceramic output capacitors smaller than 2.2µF?
No-Diodes specifies a minimum 2.2µF X5R/X7R ceramic capacitor on VOUT for stability across temperature and load. Using smaller values (e.g., 1µF) risks oscillation or degraded transient response, as confirmed by load-step testing in the datasheet's performance curves. ESR is not a concern with ceramics, but capacitance value directly impacts phase margin.
Does AP7384-50SA-7 have an enable pin or shutdown function?
No-the AP7384-50SA-7 has no enable (EN) pin or logic-controlled shutdown. It operates continuously when VIN is within specification. For applications requiring controlled power sequencing, an external MOSFET switch on the VIN rail or a companion device like the AP7361 (with enable) must be used.
Is AP7384-50SA-7 qualified for automotive applications?
No-AP7384-50SA-7 is not AEC-Q100 qualified. Diodes explicitly states that automotive-grade versions require specific change control, PPAP capability, and IATF 16949 manufacturing; this part is intended for industrial and consumer portable equipment. For automotive use, consult Diodes' AP7384-Q series or equivalent AEC-Q100 LDOs.
AP7384-50SA-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- 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-23-3
AP7384-50SA-7 FAQ
1.How can I place an order for AP7384-50SA-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7384-50SA-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 AP7384-50SA-7 reliable?
The price and inventory of AP7384-50SA-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7384-50SA-7 is usually 5 days.
3.What payment methods are accepted for AP7384-50SA-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7384-50SA-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7384-50SA-7?
AP7384-50SA-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7384-50SA-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 AP7384-50SA-7?
For technical support, including AP7384-50SA-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7384-50SA-7 requirements.
6.How does Aetrix verify that AP7384-50SA-7 is sourced from the original manufacturer or authorized distributors?
All AP7384-50SA-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 AP7384-50SA-7 meets industry standards.
7.What is the process for return or replacement of AP7384-50SA-7?
All AP7384-50SA-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7384-50SA-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 AP7384-50SA-7 part is unused and in its original packaging.
Return procedure for AP7384-50SA-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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