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Diodes Incorporated AP7383-33Y-13
- Part No.:
- AP7383-33Y-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-243AA
- Datasheet:
-
AP7383-33Y-13.pdf
- Description:
- IC REG LIN 3.3V SOT89 T&R 2.5K
- Quantity:
- Payment:
- Shipping:
Inventory:12,132
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Product details
Overview
AP7383-33Y-13 from Diodes Incorporated is a fixed-output 3.3V, 150mA ultra-low dropout (ULDO) linear regulator in SOT89 package, featuring 30V max input voltage, 500mV dropout at 50mA, ±1% output accuracy, and 1.8µA ground current at no load-designed for USB-powered instrumentation and portable battery systems requiring stable low-noise rail generation.
For engineers reviewing the AP7383-33Y-13 datasheet, AP7383-33Y-13 pinout, AP7383-33Y-13 application, or AP7383-33Y-13 equivalent, key selection criteria include dropout performance under 150mA load, thermal shutdown behavior at +160°C, EN pin compatibility with 2.0V logic-high threshold, and SOT89 package thermal resistance (θJA = 118°C/W) for ambient-limited PCB layouts.
Technical Context
The AP7383-33Y-13 integrates a precision voltage reference, error amplifier, and current-limit circuit to maintain regulation across 3.5–30V input range while delivering 3.3V ±1% over -40°C to +125°C junction temperature. Its internal enable function supports system-level power sequencing via a 1µA EN pin current and 0.4V logic-low threshold.
Dropout voltage scales linearly with load: 360–580mV at 50mA, rising to 750–1100mV at 150mA for VOUT = 3.3V; line regulation is 0.05%/V and load regulation is 0.5% across 1–150mA, enabling stable operation with ceramic capacitors as low as 1µF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.3V ±1% - ensures reliable 3.3V logic rail tolerance for microcontrollers and sensors |
| Max Input Voltage | 30V - supports wide-input industrial and automotive-supply environments |
| Dropout Voltage | 500mV @ 50mA - enables regulation from 3.8V input, critical for single-cell LiFePO4 or multi-cell alkaline systems |
| Quiescent Current | 1.8µA @ IOUT = 0 - minimizes standby power loss in battery-backed real-time clocks and IoT sleep modes |
| Thermal Shutdown | +160°C with 20°C hysteresis - provides robust overtemperature protection without nuisance tripping during transient loads |
| Line Regulation | 0.05%/V - maintains output stability despite input ripple from unregulated wall adapters or DC-DC pre-regulators |
| Load Regulation | 0.5% from 1mA to 150mA - ensures consistent voltage delivery across dynamic processor load states |
Pinout & Package
SOT89 package (Type Y) with 3-pin exposed-pad thermal design; footprint matches JEDEC MS-012AA standard; θJA = 118°C/W on 2"×2" 4-layer board with internal planes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Input supply connection | Accepts 3.5–30V; requires 1µF ceramic input capacitor placed within 5mm for EMI suppression |
| GND (Pin 2) | Power ground reference | Shared return path for regulator core and thermal pad; must be connected to large copper pour for heat dissipation |
| VOUT (Pin 3) | Regulated 3.3V output | Delivers up to 150mA; requires 1µF ceramic output capacitor with ESR < 100mΩ for stability |
Key Features
| Feature | Design Value |
|---|---|
| Wide input range (3.5–30V) | Enables direct connection to 24V industrial rails or 12V automotive systems without pre-regulation |
| Ultra-low quiescent current (1.8µA) | Extends battery life in always-on sensor nodes beyond 10 years on CR2032 coin cell |
| Low-ESR ceramic capacitor compatible | Eliminates need for costly tantalum or aluminum electrolytic capacitors; reduces BOM count and board area |
| Thermal shutdown with hysteresis | Prevents latch-up during sustained overload; 20°C recovery margin avoids oscillation near trip point |
| ±1% output accuracy | Meets tight ADC reference and FPGA I/O voltage requirements without external trimming |
Applications
| Portable Medical Sensors | Industrial Data Loggers |
|---|---|
Use Scenario: Wearable ECG patch powered by single Li-ion cell with variable voltage (3.0–4.2V). IC Role / Device Role / Timing Role: Primary 3.3V LDO supplying analog front-end and BLE radio. Use Value: 500mV dropout allows full battery utilization down to 3.8V; 0.5% load regulation prevents ADC offset drift during radio transmit bursts. | Use Scenario: Ruggedized environmental monitor operating from 24V DC field bus with wide temperature swings. IC Role / Device Role / Timing Role: Local 3.3V rail generator for microcontroller and RS-485 transceiver. Use Value: 30V input rating eliminates need for external TVS/clamp; 118°C/W θJA enables convection-only cooling in sealed enclosures. |
| USB-Powered Test Equipment | Smart Home Hub Controllers |
Use Scenario: Handheld oscilloscope accessory drawing power from USB 2.0 port (4.75–5.25V). IC Role / Device Role / Timing Role: Clean 3.3V supply for high-resolution ADC and FPGA configuration memory. Use Value: 0.05%/V line regulation rejects USB cable drop-induced ripple; ±1% accuracy ensures calibrated measurement integrity. | Use Scenario: Battery-backed Zigbee coordinator with 10-year shelf life requirement. IC Role / Device Role / Timing Role: Always-on 3.3V supply for RTC and wireless SoC deep-sleep mode. Use Value: 1.8µA quiescent current limits annual self-discharge to <1% of AA alkaline capacity; thermal shutdown protects against enclosure overheating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1703T-3302E/MB | 250mV dropout @ 250mA; 2.5µA IQ; 6V max input | Limited to ≤6V inputs; unsuitable for 24V industrial or automotive use | Select only for low-input-voltage, higher-current designs where dropout is critical and input stays below 6V |
| TPS7A2033PDBVR | 175mV dropout @ 300mA; 6.5µA IQ; 6V max input; integrated soft-start | No 30V input support; soft-start adds startup delay not needed in simple point-of-load regulation | Prefer when ultra-low dropout and fast transient response are required in ≤6V systems with strict inrush control |
Compared with MCP1703T-3302E/MB and TPS7A2033PDBVR, the AP7383-33Y-13 uniquely balances 30V input capability, sub-1µA standby current, and SOT89 thermal performance-making it the only viable choice for long-life, wide-input portable instrumentation where space and heat dissipation are constrained.
Availability
AP7383-33Y-13 is available at Aetrix Electronics and suitable for portable medical sensors, industrial data loggers, USB-powered test equipment, and smart home hub controllers requiring stable component supply across extended product lifecycles.
Supply support for AP7383-33Y-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 AP7383 series belongs to Diodes' ULDO regulator product line, engineered specifically for battery-powered and wide-input industrial applications demanding ultra-low IQ, high accuracy, and robust thermal protection in compact packages.
FAQ
What is the minimum input voltage required for regulation at full 150mA load?
The AP7383-33Y-13 requires VIN ≥ VOUT + VDROP. At 150mA and 3.3V output, typical dropout is 1.05V (max 1.5V per datasheet), so minimum input is 4.35V (typical) or 4.8V (worst-case). Below this, output voltage collapses linearly with input reduction.
Can the AP7383-33Y-13 be used without an enable signal?
Yes-the SOT89 variant (Y package) has no EN pin; pins are VIN-GND-VOUT only. The device powers up automatically when VIN exceeds 3.5V. No external pull-up or logic control is needed, simplifying designs where always-on operation is acceptable.
Is the SOT89 package RoHS-compliant and lead-free?
Yes-AP7383-33Y-13 is fully RoHS 3 compliant (2015/863/EU), lead-free, halogen-free, and antimony-free per Diodes' "Green" definition (<900ppm Br, <900ppm Cl, <1000ppm Sb). Matte tin-plated leads meet MIL-STD-202 solderability requirements.
What is the recommended PCB layout for thermal performance in SOT89?
Maximize copper area under the tab (Pin 2/GND) using multiple thermal vias (≥4 × 0.3mm) to inner ground planes. Maintain ≥1.5mm clearance from adjacent components. Use 2oz copper on top/bottom layers and 1oz internal planes per JEDEC High-K board spec to achieve rated θJA = 118°C/W.
AP7383-33Y-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):
- 30V
- 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
AP7383-33Y-13 FAQ
1.How can I place an order for AP7383-33Y-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7383-33Y-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 AP7383-33Y-13 reliable?
The price and inventory of AP7383-33Y-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7383-33Y-13 is usually 5 days.
3.What payment methods are accepted for AP7383-33Y-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7383-33Y-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7383-33Y-13?
AP7383-33Y-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7383-33Y-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 AP7383-33Y-13?
For technical support, including AP7383-33Y-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7383-33Y-13 requirements.
6.How does Aetrix verify that AP7383-33Y-13 is sourced from the original manufacturer or authorized distributors?
All AP7383-33Y-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 AP7383-33Y-13 meets industry standards.
7.What is the process for return or replacement of AP7383-33Y-13?
All AP7383-33Y-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP7383-33Y-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 AP7383-33Y-13 part is unused and in its original packaging.
Return procedure for AP7383-33Y-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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