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onsemi MC7815ABD2TR4
- Part No.:
- MC7815ABD2TR4
- Manufacturer:
- onsemi
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
MC7815ABD2TR4.pdf
- Description:
- IC REG LINEAR 15V 1A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:3,026
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Product details
Overview
MC7815ABD2TR4 from onsemi is a 15 V, 1.0 A fixed-output linear voltage regulator in D2PAK-3 (TO-263) package, featuring internal thermal shutdown, short-circuit current limiting, and safe-area compensation. It delivers stable 15 V output with ±1.0% tolerance at 25°C and supports industrial applications requiring local regulation with minimal external components.
For engineers reviewing the MC7815ABD2TR4 datasheet, pinout, applications, or equivalent options, key selection criteria include dropout voltage (2.0 V at 1.0 A), ripple rejection (60 dB at 120 Hz), quiescent current (3.5–6.0 mA), output noise (10 µV/V), and thermal performance under continuous 1.0 A load with heatsinking.
Technical Context
This monolithic IC employs a bipolar pass transistor with built-in safe-area compensation to dynamically reduce short-circuit current as input-output differential increases. Its thermal overload protection activates at +150°C junction temperature, and internal current limiting holds peak short-circuit current to 0.2 A at 35 V input.
The device operates across an input voltage range of 17.9–30 V DC for rated 15 V output, requires no external capacitors for stability, and maintains ≤1.8 mV load regulation over 5–1500 mA at 25°C - enabling robust performance in noisy industrial power rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 15.0 V ±1.0% at 25°C; ensures precise rail generation for analog sensors and logic interfaces |
| Max Output Current | 1.0 A continuous; supports medium-power subsystems without external boost circuitry |
| Dropout Voltage | 2.0 V at 1.0 A and 25°C; defines minimum input headroom needed for regulation |
| Ripple Rejection | 60 dB at 120 Hz; suppresses AC line noise from unregulated DC supplies |
| Quiescent Current | 3.5–6.0 mA; enables low standby power in always-on industrial controllers |
| Thermal Shutdown | Activates at +150°C TJ; prevents permanent damage during sustained overload |
| Short-Circuit Limit | 0.2 A at 35 V input; protects upstream supply and PCB traces during fault conditions |
Pinout & Package
D2PAK-3 (TO-263) surface-mount package with exposed thermal pad connected to Pin 2 (Ground); designed for high-power dissipation with external heatsink mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input | Unregulated DC input (17.9–30 V); must exceed output by ≥2.0 V for regulation |
| 2 | Ground | Common reference for input, output, and heatsink; critical for thermal and electrical stability |
| 3 | Output | Regulated +15 V output; bypass capacitor optional but recommended for transient response |
Key Features
| Feature | Design Value |
|---|---|
| No external components required | Enables drop-in integration into space-constrained PCBs without support capacitors for basic operation |
| Internal safe-area compensation | Reduces short-circuit current as VI–VO rises, preventing secondary failure during overvoltage faults |
| Thermal overload protection | Shuts down output at +150°C junction temperature and auto-recovers when cooled below threshold |
| 1.5% output voltage tolerance option | MC7815AB variant offers tighter initial accuracy than standard C-grade parts for precision analog systems |
| Pb-free and RoHS-compliant | Meets environmental compliance requirements for industrial and automotive end equipment |
Applications
| Industrial PLC I/O Module | Automotive Body Control Unit |
|---|---|
Use Scenario: Powering isolated analog input channels and digital isolators in modular PLC backplanes. IC Role / Device Role / Timing Role: Local +15 V rail generator for op-amps, ADC drivers, and optocoupler biasing. Use Value: Stable 15 V output with <1.8 mV load regulation ensures <0.012% gain error in 16-bit sensor signal chains. | Use Scenario: Supplying microcontroller peripherals and CAN transceivers in non-safety-critical vehicle modules. IC Role / Device Role / Timing Role: Secondary regulated rail derived from 12 V battery system. Use Value: 60 dB ripple rejection maintains clean power for CAN FD communication despite alternator noise. |
| Medical Patient Monitor Front-End | Test & Measurement Equipment |
Use Scenario: Biasing photodiode amplifiers and precision DACs in portable diagnostic devices. IC Role / Device Role / Timing Role: Low-noise analog supply rail decoupled from digital subsystems. Use Value: 10 µV/V output noise minimizes baseline drift in µV-level biopotential measurements. | Use Scenario: Providing stable excitation voltage for precision resistive bridge sensors in calibration instruments. IC Role / Device Role / Timing Role: Reference-grade fixed-voltage source with thermal stability. Use Value: −1.0 mV/°C temperature coefficient enables <±0.15% output drift over 0–70°C operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM7815CD2T | Higher quiescent current (4.5–8.0 mA), lower ripple rejection (55 dB), TO-263 package | Less suitable for low-power or high-EMI environments due to reduced noise immunity | Acceptable where cost sensitivity outweighs thermal/noise performance |
| NCV7815BD2TR4 | AEC-Q100 qualified, wider operating temperature (−40°C to +150°C), same electrical specs | Required for automotive under-hood applications; not necessary for industrial ambient use | Select when automotive qualification or extended temperature range is mandatory |
Compared with LM7815CD2T, MC7815ABD2TR4 offers superior ripple rejection and lower quiescent current for energy-sensitive designs; versus NCV7815BD2TR4, it provides identical regulation performance at lower cost where automotive qualification is unnecessary.
Availability
MC7815ABD2TR4 is available at Aetrix Electronics and suitable for industrial control systems, automotive body electronics, medical instrumentation, and test equipment requiring stable component supply and long-term manufacturability.
Supply support for MC7815ABD2TR4 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
onsemi is a global semiconductor supplier delivering energy-efficient silicon solutions for automotive, industrial, cloud, and IoT applications.
The MC7800 series was designed as a robust, pin-compatible family of fixed-output linear regulators targeting cost-sensitive, high-reliability applications where simplicity, thermal resilience, and proven field performance are critical.
FAQ
What is the maximum input voltage rating for MC7815ABD2TR4?
The absolute maximum input voltage for MC7815ABD2TR4 is 35 V DC, per the datasheet's Maximum Ratings table. However, for reliable continuous operation at 1.0 A output, the recommended input range is 17.9–30 V DC to maintain adequate headroom and thermal margin. Exceeding 35 V risks permanent damage even with thermal shutdown active.
Does MC7815ABD2TR4 require input or output capacitors for stability?
No, MC7815ABD2TR4 is internally compensated and does not require external capacitors for stability. However, a 0.33 µF input capacitor is recommended if the regulator is located far from the bulk filter, and an output capacitor improves transient response - though values below 0.1 µF may cause instability per the datasheet guidelines.
How does the safe-area compensation in MC7815ABD2TR4 protect the device during overload?
MC7815ABD2TR4's safe-area compensation reduces short-circuit current as the input-output voltage differential increases - for example, limiting ISC to 0.2 A at 35 V input. This prevents secondary failure modes like bond-wire fusing or die metallization burnout during sustained overloads, extending device lifetime beyond basic thermal shutdown alone.
What is the thermal resistance junction-to-case for MC7815ABD2TR4 in D2PAK-3 package?
The thermal resistance junction-to-case (RJC) for MC7815ABD2TR4 is 5.0°C/W, as specified in the Maximum Ratings table. This value assumes proper soldering of the exposed thermal pad to a copper plane; actual board-level RJA depends on PCB layout, copper area, and airflow, and ranges from 65–92°C/W per the datasheet.
Can MC7815ABD2TR4 be used in adjustable-voltage configurations?
Yes, MC7815ABD2TR4 can be configured as an adjustable regulator using external resistors per Figure 10 in the datasheet. Though optimized for fixed 15 V operation, its internal reference and error amplifier allow output voltages above 15 V when feedback is applied to the ground pin - however, stability and load regulation degrade outside the 15 V design point.
MC7815ABD2TR4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 35V
- Voltage - Output (Min/Fixed):
- 15V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 2V @ 1A (Typ)
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- 6 mA
- Current - Supply (Max):
- -
- PSRR:
- 80dB (120Hz)
- Control Features:
- -
- Protection Features:
- Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK-3
MC7815ABD2TR4 FAQ
1.How can I place an order for MC7815ABD2TR4 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC7815ABD2TR4 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 MC7815ABD2TR4 reliable?
The price and inventory of MC7815ABD2TR4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC7815ABD2TR4 is usually 5 days.
3.What payment methods are accepted for MC7815ABD2TR4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC7815ABD2TR4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC7815ABD2TR4?
MC7815ABD2TR4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC7815ABD2TR4 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 MC7815ABD2TR4?
For technical support, including MC7815ABD2TR4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC7815ABD2TR4 requirements.
6.How does Aetrix verify that MC7815ABD2TR4 is sourced from the original manufacturer or authorized distributors?
All MC7815ABD2TR4 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 MC7815ABD2TR4 meets industry standards.
7.What is the process for return or replacement of MC7815ABD2TR4?
All MC7815ABD2TR4 units undergo pre-shipment inspection (PSI). If there is an issue with MC7815ABD2TR4, 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 MC7815ABD2TR4 part is unused and in its original packaging.
Return procedure for MC7815ABD2TR4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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