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Diodes Incorporated AP7380-33Y-13
- Part No.:
- AP7380-33Y-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-243AA
- Datasheet:
-
AP7380-33Y-13.pdf
- Description:
- IC REG LINEAR 3.3V 150MA SOT89
- Quantity:
- Payment:
- Shipping:
Inventory:16,149
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Product details
Overview
AP7380-33Y-13 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 1.8µA ground current at zero load - enabling long runtime in portable instrumentation and USB-powered devices.
For engineers reviewing the AP7380-33Y-13 datasheet, AP7380-33Y-13 pinout, AP7380-33Y-13 application, or AP7380-33Y-13 equivalent, key selection criteria include wide 3.5–24V input range compatibility, thermal shutdown protection, low-ESR ceramic capacitor support, and SOT89 package thermal performance for industrial-grade ambient operation.
Technical Context
The AP7380-33Y-13 integrates a precision voltage reference, error amplifier, resistor network for fixed 3.3V output, current-limit circuitry (150mA typical), and enable control logic. Its architecture supports stable regulation across -40°C to +125°C junction temperature with ±100ppm/°C output voltage drift.
It features active thermal shutdown at +160°C with +20°C hysteresis, and operates with only 0.01µA standby current when EN is low. The device maintains 0.05%/V line regulation and 0.5% load regulation over full output current range (1–150mA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3V ±1% - ensures stable MCU core/logic rail without external feedback components. |
| Input Voltage Range | 3.5V to 24V - supports direct connection to 12V automotive or industrial bus rails with minimal pre-regulation. |
| Dropout Voltage | 360–580mV @ 50mA - enables 3.3V output from 3.86V input, critical for single-cell LiFePO₄ or dual-cell alkaline systems. |
| Ground Current | 1.8µA @ IOUT = 0mA - minimizes quiescent power loss in always-on sensor nodes or sleep-mode peripherals. |
| Current Limit | 150mA typical - provides robust short-circuit protection without external current-sense resistors. |
| Thermal Shutdown | +160°C with +20°C hysteresis - prevents permanent damage during sustained overload or poor PCB heatsinking. |
| Line Regulation | 0.05%/V - maintains output stability despite input ripple from switching converters or unregulated adapters. |
| Load Regulation | 0.5% from 1mA to 150mA - ensures consistent voltage for mixed-signal loads (e.g., ADC reference + digital logic). |
Pinout & Package
SOT89 (Option 2) package: 3-pin surface-mount outline with exposed thermal pad (pin 2 is GND, pin 3 is VOUT, pin 1 is VIN); footprint dimensions per Diodes Package Outline Drawing SOT89-3 (Option 2), thermal resistance θJA = 118°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Input supply connection | Accepts 3.5–24V DC; requires ≥1µF low-ESR ceramic input capacitor for stability. |
| 2 (GND) | Power ground reference | Common return path for input, output, and internal circuitry; must be connected to thermal pad for optimal heat dissipation. |
| 3 (VOUT) | Regulated output terminal | Delivers fixed 3.3V ±1%; requires ≥1µF low-ESR ceramic output capacitor for transient response and PSRR. |
Key Features
| Feature | Design Value |
|---|---|
| Wide input voltage range | Supports 3.5–24V operation - eliminates need for intermediate buck stages in multi-rail systems. |
| Ultra-low quiescent current | 1.8µA ground current at no load - extends battery life in IoT edge sensors with infrequent wake-up cycles. |
| Low-ESR capacitor compatibility | Stable with 1µF ceramic capacitors - reduces BOM cost and board area vs. tantalum or electrolytic alternatives. |
| Thermal shutdown with hysteresis | +160°C trip / +140°C recovery - prevents thermal runaway while allowing safe restart after cooling. |
| High output voltage accuracy | ±1% over temperature and line/load - meets tight tolerance requirements for analog sensor front-ends and ADC references. |
Applications
| Portable Medical Sensors | Industrial Data Loggers |
|---|---|
|
Use Scenario: Wearable ECG patch powered by coin-cell battery with intermittent Bluetooth transmission. IC Role / Device Role / Timing Role: Primary 3.3V LDO supplying analog front-end, microcontroller, and BLE radio. Use Value: 1.8µA quiescent current extends battery life beyond 6 months; 500mV dropout allows operation down to 3.8V input. |
Use Scenario: Ruggedized environmental monitor deployed in remote field locations with 12V solar/battery hybrid supply. IC Role / Device Role / Timing Role: Post-regulator for 3.3V microcontroller and SD card interface, downstream of buck converter. Use Value: 24V max input withstands load-dump transients; thermal shutdown protects against enclosure overheating in sealed enclosures. |
| USB-Powered Test Equipment | Automotive Body Control Modules |
|
Use Scenario: Handheld oscilloscope accessory drawing power from USB 2.0 host port (4.75–5.25V). IC Role / Device Role / Timing Role: Low-noise 3.3V rail for precision ADC and FPGA configuration. Use Value: 0.5% load regulation maintains ADC reference stability across varying USB source impedance and cable length. |
Use Scenario: Non-safety-critical interior lighting controller operating from vehicle 12V battery (9–16V nominal, up to 24V during cranking). IC Role / Device Role / Timing Role: Secondary regulator powering CAN transceiver and microcontroller I/O banks. Use Value: Wide 3.5–24V input range accommodates cold-crank dips and load-dump spikes without external protection diodes. |
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 ±2%, 250mV dropout @ 250mA, SOT23-5 package, no EN pin | Lacks enable control and thermal shutdown; lower current rating but smaller footprint | Prefer when board space is critical and enable/shutdown not required. |
| TLS850F3TLE | 3.3V ±2%, 300mV dropout @ 500mA, AEC-Q100 qualified, integrated watchdog | Automotive-qualified with system monitoring features; higher cost and larger SOIC-8 package | Required for production automotive ECUs needing functional safety compliance. |
Compared with MCP1703T-3302E/MB and TLS850F3TLE, the AP7380-33Y-13 offers superior thermal protection and tighter output accuracy in a cost-effective SOT89 package, making it optimal for industrial and portable designs where reliability and input voltage flexibility outweigh automotive qualification needs.
Availability
AP7380-33Y-13 is available at Aetrix Electronics and suitable for battery-powered equipment, portable instrumentation, and USB-powered test accessories requiring stable component supply with lead-free, RoHS-compliant sourcing.
Supply support for AP7380-33Y-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 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 AP7380 series belongs to Diodes' ULDO regulator product line, engineered specifically for low-power, wide-input-voltage applications where efficiency, accuracy, and thermal robustness are prioritized over ultra-high current capability.
FAQ
What is the maximum input voltage the AP7380-33Y-13 can withstand?
The AP7380-33Y-13 has an absolute maximum input voltage rating of 30V, but its recommended operating range is 3.5V to 24V. Operation above 24V risks exceeding thermal limits under load, especially in SOT89 package without enhanced heatsinking. The 24V upper limit ensures reliable performance within specified junction temperature limits.
Does the AP7380-33Y-13 require an external enable pull-up resistor?
No - the EN pin is internally pulled up to VIN via a high-impedance path. The device powers on automatically when VIN exceeds 3.5V. An external pull-up is unnecessary unless active low-side control is needed; EN logic thresholds are 2.0V (high) and 0.4V (low), with 1µA input current.
Can the AP7380-33Y-13 drive a 150mA load continuously at +85°C ambient?
Yes, provided the PCB layout includes adequate copper pour on the thermal pad and ambient airflow is sufficient. With θJA = 118°C/W, 150mA load at 3.3V output yields ~110mW dissipation; junction temperature rise is ~13°C above ambient, well below the +125°C max operating TJ. Derating is not required at this condition.
Is the AP7380-33Y-13 compatible with 10µF X7R ceramic output capacitors?
Yes - the AP7380 is explicitly characterized for stability with low-ESR ceramic capacitors ≥1µF. A 10µF X7R capacitor improves transient response and reduces output ripple compared to the minimum 1µF, with no risk of oscillation due to its internal compensation design.
AP7380-33Y-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):
- 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-89-3
AP7380-33Y-13 FAQ
1.How can I place an order for AP7380-33Y-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7380-33Y-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 AP7380-33Y-13 reliable?
The price and inventory of AP7380-33Y-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7380-33Y-13 is usually 5 days.
3.What payment methods are accepted for AP7380-33Y-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7380-33Y-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7380-33Y-13?
AP7380-33Y-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7380-33Y-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 AP7380-33Y-13?
For technical support, including AP7380-33Y-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7380-33Y-13 requirements.
6.How does Aetrix verify that AP7380-33Y-13 is sourced from the original manufacturer or authorized distributors?
All AP7380-33Y-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 AP7380-33Y-13 meets industry standards.
7.What is the process for return or replacement of AP7380-33Y-13?
All AP7380-33Y-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP7380-33Y-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 AP7380-33Y-13 part is unused and in its original packaging.
Return procedure for AP7380-33Y-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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