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Diodes Incorporated AP7380-33W5-7
- Part No.:
- AP7380-33W5-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP7380-33W5-7.pdf
- Description:
- IC REG LINEAR 3.3V 150MA SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:9,018
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Product details
Overview
AP7380-33W5-7 from Diodes Incorporated is a fixed-output 3.3V 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 1.8µA ground current at full load - enabling extended runtime in portable instrumentation and USB-powered devices.
For engineers reviewing the AP7380-33W5-7 datasheet, AP7380-33W5-7 pinout, AP7380-33W5-7 application, or AP7380-33W5-7 equivalent, key selection criteria include its 3.5–24V wide input range, thermal shutdown protection, compatibility with low-ESR ceramic capacitors, and SOT25 (W5) package footprint for high-density PCB layouts.
Technical Context
The AP7380-33W5-7 integrates a precision voltage reference, error amplifier, resistor network for fixed 3.3V output, current-limit circuitry (150mA), and enable control logic. Its architecture supports stable regulation under fast load transients and wide temperature variation (-40°C to +125°C).
It operates as a single-stage positive linear regulator with no external feedback components required. The EN pin enables system-level power sequencing, while thermal shutdown (160°C trip, 20°C hysteresis) and internal current limiting provide robust fault protection without external circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3V ±1% - ensures stable MCU core/logic rail without trimming or feedback resistors. |
| Input Voltage Range | 3.5V to 24V - supports direct connection to 12V/24V industrial buses or multi-cell Li-ion packs. |
| Dropout Voltage | 360mV (typ) @ 50mA - enables regulation down to VIN = 3.66V, critical for deep battery discharge operation. |
| Ground Current | 1.8µA (typ) @ IOUT = 150mA - minimizes quiescent power loss in always-on subsystems. |
| Line Regulation | 0.05%/V - maintains output stability across wide input swings, e.g., automotive cold-crank scenarios. |
| Load Regulation | 0.5% - holds output within ±16.5mV from 1mA to 150mA load, suitable for noise-sensitive analog sensors. |
| Thermal Shutdown | 160°C with 20°C hysteresis - prevents permanent damage during sustained overload or poor heatsinking. |
Pinout & Package
AP7380-33W5-7 uses the SOT25 (W5) surface-mount package: 5-pin, 2.8mm × 2.9mm × 1.1mm body, matte tin-plated leads, moisture sensitivity level 1 (J-STD-020). Thermal resistance θJA = 193°C/W enables >100mA continuous operation on standard 2-layer FR4 without copper pour.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VIN | Main input supply pin - accepts 3.5–24V; requires ≥1µF ceramic input capacitor for stability. |
| 2 | GND | Analog/digital ground reference - must be connected to low-impedance PCB ground plane for noise immunity. |
| 3 | VOUT | Regulated 3.3V output - drives loads up to 150mA; requires ≥1µF ceramic output capacitor for transient response. |
| 4 | NC | No connect - internally unconnected; left floating per datasheet for fixed-output version. |
| 5 | EN | Active-high enable input - pulls low (<0.4V) to disable regulator and reduce standby current to 0.01µA. |
Key Features
| Feature | Design Value |
|---|---|
| Wide input voltage range | Supports 3.5–24V inputs - eliminates need for pre-regulation stages in 12V/24V industrial or automotive auxiliary rails. |
| Ultra-low quiescent current | 1.8µA ground current at full load - extends battery life in IoT edge nodes operating intermittently for years. |
| Low-ESR capacitor compatibility | Stable with ≥1µF X5R/X7R ceramic capacitors - reduces BOM cost and board area vs. tantalum or electrolytic solutions. |
| Integrated thermal protection | Auto-recovery shutdown at 160°C - avoids external thermal monitoring circuitry in compact enclosures. |
| High output accuracy | ±1% over line/load/temperature - meets tight tolerance requirements for ADC references and RF bias rails. |
Applications
| Portable Medical Sensors | USB-Powered Test Equipment |
|---|---|
|
Use Scenario: Continuous glucose monitor (CGM) with Bluetooth LE radio and analog front-end. IC Role / Device Role / Timing Role: Primary 3.3V power rail for microcontroller, BLE SoC, and precision sensor signal chain. Use Value: 1.8µA quiescent current extends coin-cell battery life beyond 12 months; 0.5% load regulation prevents ADC offset drift during radio transmission bursts. |
Use Scenario: Handheld oscilloscope probe interface module powered via USB 5V bus. IC Role / Device Role / Timing Role: Local 3.3V LDO for FPGA configuration, ADC driver, and digital isolator supply. Use Value: 24V max input rating allows use with USB PD adapters; 360mV dropout enables clean 3.3V rail even when USB drops to 4.75V during high-current draw. |
| Industrial Data Loggers | Automotive Cabin Controllers |
|
Use Scenario: Battery-backed environmental logger deployed in remote substations with 12V DC backup. IC Role / Device Role / Timing Role: Main 3.3V regulator for ARM Cortex-M4 MCU, SD card interface, and RS-485 transceiver. Use Value: 193°C/W θJA allows operation at 100mA ambient 70°C without heatsink; ±100ppm/°C tempco ensures <±3mV output drift over -40°C to +85°C. |
Use Scenario: Rear-seat entertainment controller powered from vehicle 12V battery with cold-crank dips to 6V. IC Role / Device Role / Timing Role: Secondary 3.3V regulator for touch controller, display timing generator, and audio codec. Use Value: 3.5V min input enables regulation during cranking events; thermal shutdown protects against enclosure overheating in sealed dash mounts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ULDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-3302E/TO | Lower max input (6V), 250mA output, higher dropout (600mV @ 250mA) | Limited to single-cell Li-ion or 5V USB-only systems; unsuitable for 12V/24V industrial inputs | Select when cost sensitivity outweighs input voltage range needs and 250mA peak current is required |
| TPS7A2033PDBVR | Higher IQ (6.5µA), lower dropout (175mV @ 300mA), but max input only 6.5V | Optimized for ultra-low-noise RF/ADC supplies in battery-only designs; lacks 24V capability | Prefer for noise-critical analog rails where 6.5V input ceiling is acceptable |
Compared with MCP1700-3302E/TO and TPS7A2033PDBVR, AP7380-33W5-7 uniquely balances 24V input tolerance, sub-1µA standby current, and SOT25 footprint - making it the only choice for 12V/24V-powered portable instruments requiring long battery life and minimal board area.
Availability
AP7380-33W5-7 is available at Aetrix Electronics and suitable for portable medical sensors, USB-powered test equipment, and industrial data loggers requiring stable component supply, long-lifecycle availability, and RoHS-compliant packaging.
Supply support for AP7380-33W5-7 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 qualification to AEC-Q100/101 standards.
The AP7380 series belongs to Diodes' high-voltage ULDO regulator product line, engineered specifically for battery-powered and wide-input industrial applications where efficiency, accuracy, and reliability under variable conditions are critical.
FAQ
What is the minimum input voltage required for AP7380-33W5-7 to regulate 3.3V output?
The absolute minimum input voltage is 3.5V per datasheet specifications. At 50mA load, the typical dropout is 360mV, so stable regulation begins at VIN ≥ 3.66V. Below 3.5V, the device enters dropout mode and output voltage drops linearly with input.
Can AP7380-33W5-7 be used with ceramic output capacitors smaller than 1µF?
No - the datasheet specifies ≥1.0µF ceramic capacitor (X5R/X7R) on VOUT for stability and transient response. Using smaller values risks oscillation or excessive output voltage deviation during load steps, as confirmed by load transient test waveforms in DS39196 Rev. 4-2.
Does AP7380-33W5-7 require an input capacitor, and what value is recommended?
Yes - a minimum 1.0µF ceramic capacitor is required on VIN to suppress high-frequency noise and prevent instability. The datasheet shows performance degradation in line regulation and PSRR when input capacitance falls below this value, especially above 10MHz switching noise.
Is AP7380-33W5-7 qualified for automotive applications per AEC-Q100?
No - the AP7380 series is not AEC-Q100 qualified. Diodes explicitly states that automotive-grade versions require separate change control and PPAP capability; AP7380-33W5-7 is rated for industrial temperature range (-40°C to +125°C) but lacks automotive qualification documentation or IATF 16949-controlled process validation for automotive use.
AP7380-33W5-7 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):
- 24V
- Voltage - Output (Min/Fixed):
- 3.3V
- 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:
- Enable
- Protection Features:
- Current Limit, Thermal Shutdown
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-25
AP7380-33W5-7 FAQ
1.How can I place an order for AP7380-33W5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7380-33W5-7 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 AP7380-33W5-7 reliable?
The price and inventory of AP7380-33W5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7380-33W5-7 is usually 5 days.
3.What payment methods are accepted for AP7380-33W5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7380-33W5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7380-33W5-7?
AP7380-33W5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7380-33W5-7 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 AP7380-33W5-7?
For technical support, including AP7380-33W5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7380-33W5-7 requirements.
6.How does Aetrix verify that AP7380-33W5-7 is sourced from the original manufacturer or authorized distributors?
All AP7380-33W5-7 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 AP7380-33W5-7 meets industry standards.
7.What is the process for return or replacement of AP7380-33W5-7?
All AP7380-33W5-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7380-33W5-7, 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 AP7380-33W5-7 part is unused and in its original packaging.
Return procedure for AP7380-33W5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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