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Diodes Incorporated AP7383-50FDC-7
- Part No.:
- AP7383-50FDC-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 6-UDFN Exposed Pad
- Datasheet:
-
AP7383-50FDC-7.pdf
- Description:
- LDO CMOS LOWCURR U-DFN2020-6 T&R
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
AP7383-50FDC-7 from Diodes Incorporated is a fixed-output 5.0V, 150mA ultra-low dropout (ULDO) linear regulator in a U-DFN2020-6 (Type C) package. It delivers ±1% output voltage accuracy over load, line, and temperature, with 500mV dropout at 50mA, 1.8–3.0µA ground current, and thermal shutdown protection-designed for USB-powered instrumentation and portable battery systems.
For engineers reviewing the AP7383-50FDC-7 datasheet, AP7383-50FDC-7 pinout, AP7383-50FDC-7 application, or AP7383-50FDC-7 equivalent, key selection criteria include input voltage range (3.5–30V), low quiescent current for standby operation, compatibility with 1µF ceramic output capacitors, and thermal performance in space-constrained PCB layouts.
Technical Context
The AP7383-50FDC-7 integrates a precision voltage reference, error amplifier, and resistor network to maintain stable 5.0V regulation across –40°C to +125°C junction temperature. Its internal current-limit circuit protects against overload, while the EN pin enables external control of regulator activation in SOT25 W5 variants-though this function is absent in the FDC package version.
Thermal management relies on the U-DFN2020-6 (Type C) package's 152°C/W junction-to-ambient thermal resistance and 58°C/W junction-to-case resistance. The device achieves 0.05%/V line regulation and 0.5% load regulation, supporting stable operation under dynamic load transients up to 150mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0V ±1% - ensures precise rail generation for 5V logic and analog subsystems |
| Max Input Voltage | 30V - supports wide-range industrial and automotive supply inputs without external pre-regulation |
| Dropout Voltage | 250mV (typ) @ 50mA - enables regulation from 5.25V input, critical for battery-powered 5V systems |
| Ground Current | 1.8–3.0µA @ IOUT = 0–150mA - minimizes standby power loss in always-on sensor nodes |
| Line Regulation | 0.05%/V - maintains tight output stability despite input ripple or sag in unregulated supplies |
| Load Regulation | 0.5% - limits output deviation across full 1–150mA load range, suitable for mixed-signal loads |
| Thermal Shutdown | 160°C threshold with 20°C hysteresis - prevents permanent damage during sustained overload or poor heatsinking |
Pinout & Package
AP7383-50FDC-7 uses the U-DFN2020-6 (Type C) package: 2.0mm × 2.0mm × 0.6mm body, 0.65mm pitch, NiPdAu-plated terminals, moisture sensitivity level 1, and exposed thermal pad (pin 6) for enhanced heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VIN | Main input supply connection; accepts 3.5–30V DC with transient robustness up to 33V |
| 2 | GND | Analog/digital ground reference; must be connected to low-impedance PCB plane for noise immunity |
| 3 | VOUT | Regulated 5.0V output; requires ≥1µF ceramic capacitor placed within 2mm for stability |
| 4 | NC | No internal connection; recommended to tie to GND for thermal copper fill and EMI reduction |
| 5 | NC | No internal connection; recommended to tie to GND for thermal copper fill and EMI reduction |
| 6 | Exposed Pad | Thermal and electrical ground; must be soldered to ≥100mm² copper pour for thermal performance |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 1.8–3.0µA across full load range enables >1-year battery life in 10µA average-load IoT sensors |
| Low-ESR capacitor compatible | Stable with 1µF ceramic output capacitor - eliminates need for costly tantalum or electrolytic types |
| High accuracy over temperature | ±100ppm/°C output drift - maintains <±1.5% total error from –40°C to +125°C |
| Integrated thermal protection | 160°C shutdown with 20°C hysteresis - prevents latch-up and allows safe auto-recovery after cooling |
| Wide-input capability | 3.5–30V operation - supports direct connection to 24V industrial rails or multi-cell Li-ion batteries |
Applications
| Portable Medical Sensors | USB-C Powered Test Equipment |
|---|---|
Use Scenario: Wearable ECG monitor powered by single Li-ion cell (3.0–4.2V) with 5V display backlight and ADC reference. IC Role / Device Role / Timing Role: Primary 5V LDO supplying analog front-end and display driver; no timing function. Use Value: 250mV dropout at 50mA allows full 5V output down to 4.25V battery voltage, extending usable runtime by 12% vs. standard LDOs. | Use Scenario: Handheld oscilloscope accessory drawing burst current up to 120mA from USB-C PD source (5–20V). IC Role / Device Role / Timing Role: Post-regulator converting variable USB-C VBUS to stable 5V for microcontroller and signal chain. Use Value: 0.5% load regulation ensures consistent ADC reference voltage during digital processing bursts, reducing measurement error by ≤0.8 LSB. |
| Industrial Data Loggers | Smart Home Hub Power Management |
Use Scenario: Battery-backed environmental logger operating from 12V supply with 5V MCU, RF transceiver, and sensor interface. IC Role / Device Role / Timing Role: Main 5V rail generator; provides clean power to real-time clock and flash memory controller. Use Value: 1.8µA ground current in idle state reduces monthly battery drain to <0.15mAh, enabling 5-year operation on CR123A cells. | Use Scenario: Wi-Fi/Zigbee hub powered from 9V wall adapter, requiring efficient 5V rail for SoC and USB peripherals. IC Role / Device Role / Timing Role: Secondary LDO delivering low-noise 5V to USB ports and audio codec. Use Value: 0.05%/V line regulation rejects ripple from low-cost AC/DC adapter, preventing audible noise in audio output path. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 5V ULDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1703T-5002E/MB | Higher dropout (600mV @ 250mA), higher IQ (2.5µA), same 5V fixed output | Larger SOT23-5 package; less suitable for 2×2mm area-constrained designs | Prefer when board layout allows larger footprint and higher current (250mA) is required |
| TPS7A2050PDBVR | Lower IQ (65nA), lower dropout (175mV @ 300mA), but requires external enable and bias capacitor | Needs additional 100nF bypass cap on EN pin; not pin-compatible with AP7383-50FDC-7 | Choose only if nanoampere standby is mandatory and layout can accommodate extra passive component |
Compared with MCP1703T-5002E/MB and TPS7A2050PDBVR, AP7383-50FDC-7 offers optimal balance of ultra-small footprint, 500mV dropout at 50mA, and zero external components-making it ideal for compact, cost-sensitive 5V systems where 150mA suffices and sub-µA standby is secondary to simplicity.
Availability
AP7383-50FDC-7 is available at Aetrix Electronics and suitable for portable medical sensors, USB-C powered test equipment, and industrial data loggers requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for AP7383-50FDC-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 ICs, with manufacturing certified to IATF 16949 and product compliance to AEC-Q standards.
The AP7383 series belongs to Diodes' high-voltage ULDO regulator product line, engineered specifically for battery-powered and USB-supplied portable instrumentation where wide input range and low quiescent current are critical.
FAQ
What is the minimum input voltage required for AP7383-50FDC-7 to regulate 5.0V output?
The AP7383-50FDC-7 requires a minimum input voltage of 3.5V per its Recommended Operating Conditions. However, to maintain regulation at full 150mA load, VIN must exceed VOUT by at least the dropout voltage-500mV typical at 50mA, rising to 1100mV at 150mA. Thus, 5.5V input is needed for guaranteed 5.0V output at 150mA.
Does AP7383-50FDC-7 include an enable (EN) pin?
No. The AP7383-50FDC-7 in the U-DFN2020-6 (Type C) package does not feature an enable pin. Pin assignments confirm pins 4 and 5 are NC (not connected internally), and the datasheet specifies EN functionality only for the SOT25 W5 variant (AP7383-50W5-7). This version operates continuously when powered.
Can AP7383-50FDC-7 be used with ceramic output capacitors smaller than 1µF?
No. The datasheet specifies 1.0µF ceramic capacitor (X5R/X7R) as the minimum for stability across all operating conditions. Using smaller values risks oscillation due to insufficient phase margin, especially under light loads or high temperatures. Layout best practices require placing the capacitor within 2mm of VOUT and GND pins.
What is the thermal performance of AP7383-50FDC-7 in its U-DFN2020-6 package?
In the U-DFN2020-6 (Type C) package, AP7383-50FDC-7 has θJA = 152°C/W and θJC = 58°C/W. With the exposed thermal pad soldered to ≥100mm² of 2oz copper, it sustains 150mA continuous output at TA = +85°C ambient. Derating is required above 100mA at +125°C ambient per the 658mW maximum power dissipation rating.
AP7383-50FDC-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-UDFN Exposed Pad
- 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):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.1V @ 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:
- U-DFN2020-6 (Type C)
AP7383-50FDC-7 FAQ
1.How can I place an order for AP7383-50FDC-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7383-50FDC-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 AP7383-50FDC-7 reliable?
The price and inventory of AP7383-50FDC-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7383-50FDC-7 is usually 5 days.
3.What payment methods are accepted for AP7383-50FDC-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7383-50FDC-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7383-50FDC-7?
AP7383-50FDC-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7383-50FDC-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 AP7383-50FDC-7?
For technical support, including AP7383-50FDC-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7383-50FDC-7 requirements.
6.How does Aetrix verify that AP7383-50FDC-7 is sourced from the original manufacturer or authorized distributors?
All AP7383-50FDC-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 AP7383-50FDC-7 meets industry standards.
7.What is the process for return or replacement of AP7383-50FDC-7?
All AP7383-50FDC-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7383-50FDC-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 AP7383-50FDC-7 part is unused and in its original packaging.
Return procedure for AP7383-50FDC-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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