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Diodes Incorporated AP7380-33WR-7
- Part No.:
- AP7380-33WR-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP7380-33WR-7.pdf
- Description:
- IC REG LINEAR 3.3V 150MA SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:77,129
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Product details
Overview
AP7380-33WR-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 1.8–3.0µA ground current across load, making it ideal for USB peripherals and portable instrumentation.
For engineers reviewing the AP7380-33WR-7 datasheet, AP7380-33WR-7 pinout, AP7380-33WR-7 application, or AP7380-33WR-7 equivalent, key selection criteria include wide 3.5–24V input range, thermal shutdown at +160°C, enable-controlled ultra-low standby current (0.01µA), and SOT25 (WR) package compatibility with low-ESR ceramic capacitors.
Technical Context
The AP7380-33WR-7 integrates an error amplifier, precision voltage reference, resistor network for fixed 3.3V output, current-limit protection (150mA typ), and active enable control. Its architecture supports stable regulation under fast load transients and wide temperature variation (–40°C to +125°C).
It features thermal shutdown with 20°C hysteresis, ±100ppm/°C output voltage temperature coefficient, and line/load regulation of 0.05%/V and 0.5%, respectively - enabling reliable operation in variable-input industrial and portable environments without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3V ±1% - ensures stable MCU core/logic rail without external feedback. |
| Input Voltage Range | 3.5V to 24V - supports direct connection to 12V/24V bus or multi-cell Li-ion stacks. |
| Dropout Voltage | 360–580mV @ 50mA - enables regulation down to VIN = 3.66V, critical for battery end-of-life operation. |
| Ground Current | 1.8–3.0µA @ IOUT = 0–150mA - minimizes quiescent power loss in always-on subsystems. |
| Enable Threshold | VEN(HI) ≥ 2.0V, VEN(LO) ≤ 0.4V - compatible with 1.8V/3.3V GPIO for precise system-level power sequencing. |
| Thermal Shutdown | Activates at +160°C with +20°C hysteresis - prevents permanent damage during sustained overload or poor heatsinking. |
| Output Accuracy | ±1% over line, load, and temperature - eliminates need for post-regulation trimming in cost-sensitive designs. |
Pinout & Package
The AP7380-33WR-7 is housed in a RoHS-compliant SOT25 (WR) package - a 5-pin, surface-mount outline with exposed pad for thermal enhancement (θJA = 166°C/W). Pin 4 and Pin 5 are internally unconnected (NC) in the fixed-output version.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Power ground reference and thermal path - must be connected to PCB ground plane for stability and thermal performance. |
| 2 | VIN | Main input supply - accepts 3.5–24V; requires ≥1µF low-ESR ceramic capacitor placed near pin. |
| 3 | VOUT | Regulated 3.3V output - drives load directly; requires ≥1µF ceramic output capacitor for transient response. |
| 4, 5 | NC | No internal connection - left floating or tied to GND per layout best practice; no electrical function. |
Key Features
| Feature | Design Value |
|---|---|
| Wide Input Range Support | Operates from 3.5V to 24V - eliminates need for pre-regulation in automotive accessory or industrial 12V/24V systems. |
| Ultra-Low Quiescent Current | 1.8–3.0µA ground current across full load - extends battery life in IoT sensors and wearables beyond 5 years in sleep mode. |
| Ceramic Capacitor Compatibility | Stable with ≥1µF X5R/X7R ceramics on input/output - reduces BOM count and board area vs. tantalum or electrolytic alternatives. |
| Enable-Controlled Standby | 0.01µA ISTD when EN = LOW - enables firmware-controlled power gating for zero-power shutdown states. |
| Robust Protection Suite | Integrated current limit (150mA), thermal shutdown (+160°C), and ESD tolerance (2500V HBM) - reduces need for external protection components. |
Applications
| USB-Powered Peripherals | Portable Medical Sensors |
|---|---|
|
Use Scenario: USB-C powered blood glucose meter with BLE radio and LCD display. IC Role / Device Role / Timing Role: Primary 3.3V LDO supplying microcontroller, sensor interface, and RF transceiver. Use Value: 500mV dropout at 50mA allows full functionality even as USB bus drops to 4.5V; 0.01µA standby enables >3-year shelf life. |
Use Scenario: Handheld pulse oximeter using dual AAA batteries and OLED display. IC Role / Device Role / Timing Role: Main 3.3V regulator for analog front-end, ADC, and low-power MCU. Use Value: 3.5V minimum VIN enables operation down to 2×1.8V (3.6V) battery stack; ±1% accuracy ensures consistent ADC reference scaling. |
| Industrial Data Loggers | Smart Home Edge Nodes |
|
Use Scenario: Battery-backed environmental logger with RS-485 interface and temperature/humidity sensors. IC Role / Device Role / Timing Role: System power regulator converting 12V field bus or LiFePO₄ battery to clean 3.3V rail. Use Value: 24V max VIN withstands load-dump transients; thermal shutdown protects during enclosure overheating in unventilated enclosures. |
Use Scenario: Zigbee-enabled occupancy sensor with PIR and ambient light detection. IC Role / Device Role / Timing Role: Always-on 3.3V supply for ultra-low-power SoC and wake-up circuitry. Use Value: 1.8µA ground current at zero load extends CR2032 coin cell life to >24 months; EN pin enables motion-triggered wake-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ULDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1703T-3302E/MB | 3.3V fixed, 250mA, 600mV dropout @ 250mA, 2.5µA IQ, SOT23-5 | Higher output current but larger dropout at full load; lacks thermal hysteresis spec | Preferred where >150mA peak load required and board space permits SOT23-5 footprint. |
| TPS7A2033PDBVR | 3.3V fixed, 300mA, 175mV dropout @ 300mA, 6.5µA IQ, WSON-6 | Lower dropout and higher current, but 3.5× higher quiescent current; no enable pin | Chosen when minimal dropout is critical and enable control is handled externally or not needed. |
Compared with MCP1703T-3302E/MB and TPS7A2033PDBVR, the AP7380-33WR-7 uniquely balances ultra-low IQ (1.8µA), enable control, thermal hysteresis, and 24V input capability in a compact SOT25 - making it optimal for long-life, wide-input, firmware-controllable portable systems.
Availability
AP7380-33WR-7 is available at Aetrix Electronics and suitable for USB-powered peripherals, portable medical sensors, and industrial data loggers requiring stable component supply, long-term manufacturability, and RoHS/Green compliance.
Supply support for AP7380-33WR-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.
The AP7380 series belongs to Diodes' precision linear regulator product line, engineered specifically for battery-powered and wide-input industrial applications demanding low dropout, ultra-low quiescent current, and robust thermal protection.
FAQ
What is the maximum input voltage rating for AP7380-33WR-7?
The absolute maximum input voltage is 30V, but the recommended operating range is 3.5V to 24V. Operation above 24V risks exceeding thermal limits under load, especially in SOT25 (WR) package with θJA = 166°C/W. For 24V nominal systems, ensure adequate PCB copper area and ambient temperature stays below +85°C.
Does AP7380-33WR-7 require an external pull-up on the EN pin?
No external pull-up is required. The EN pin has an internal weak pull-down; applying ≥2.0V enables regulation, while ≤0.4V disables output and reduces current to 0.01µA. If left floating, the device remains disabled due to the internal pull-down - ensuring safe power-up behavior in unconfigured systems.
Can AP7380-33WR-7 drive a 150mA load continuously at 24V input?
Yes, but thermal design is critical. At VIN = 24V and IOUT = 150mA, power dissipation reaches ~3.1W (24V – 3.3V × 0.15A). With θJA = 166°C/W, junction temperature rise would exceed +500°C - impossible without heatsinking. Derate to ≤50mA at 24V unless using large copper pour or forced air cooling.
Is AP7380-33WR-7 qualified for automotive applications?
No - AP7380-33WR-7 is not AEC-Q100 qualified. Diodes offers automotive-grade variants (e.g., AP7380Q series) with PPAP support, IATF 16949 manufacturing, and extended temperature validation. This part is intended for commercial/industrial use only; automotive designs require explicit qualification documentation from Diodes.
AP7380-33WR-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:
- -
- Protection Features:
- Current Limit, Thermal Shutdown
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-25
AP7380-33WR-7 FAQ
1.How can I place an order for AP7380-33WR-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7380-33WR-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 AP7380-33WR-7 reliable?
The price and inventory of AP7380-33WR-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7380-33WR-7 is usually 5 days.
3.What payment methods are accepted for AP7380-33WR-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7380-33WR-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7380-33WR-7?
AP7380-33WR-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7380-33WR-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 AP7380-33WR-7?
For technical support, including AP7380-33WR-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7380-33WR-7 requirements.
6.How does Aetrix verify that AP7380-33WR-7 is sourced from the original manufacturer or authorized distributors?
All AP7380-33WR-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 AP7380-33WR-7 meets industry standards.
7.What is the process for return or replacement of AP7380-33WR-7?
All AP7380-33WR-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7380-33WR-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 AP7380-33WR-7 part is unused and in its original packaging.
Return procedure for AP7380-33WR-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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