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onsemi MC7810ECDTXM
, SC-63.JPG)
- Part No.:
- MC7810ECDTXM
- Manufacturer:
- onsemi
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
MC7810ECDTXM.pdf
- Description:
- IC REG LINEAR 10V 1A TO252
- Quantity:
- Payment:
- Shipping:
Inventory:2,196
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Product details
Overview
MC7810ECDTXM from ON Semiconductor (formerly Fairchild) is a fixed-output, 3-terminal positive voltage regulator delivering 10 V at up to 1 A output current in TO-252 (D-PAK) surface-mount package. It integrates thermal overload protection, short-circuit protection, and safe operating area (SOA) protection for robust operation in industrial power supplies and embedded systems requiring stable DC voltage rails.
For engineers reviewing the MC7810ECDTXM datasheet, pinout, applications, or equivalent options, key selection considerations include dropout voltage (2 V at 1 A), line/load regulation performance, thermal derating behavior with PCB copper area, and compatibility with standard 0.33 µF input / 0.1 µF output capacitor configurations.
Technical Context
The MC7810ECDTXM implements a monolithic series pass transistor architecture with internal error amplifier, reference voltage generator, current limiting circuitry, and thermal shutdown comparator. Its SOA protection actively limits power dissipation during transient overloads without latch-up.
It operates across -40°C to +125°C junction temperature range and requires no external components for basic regulation. Input voltage must remain ≥12 V (i.e., ≥2 V above 10 V output) under worst-case ripple conditions to maintain regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 10 V ±4% at TJ = +25°C; ensures stable rail for logic, analog, and sensor interfaces |
| Maximum Output Current | 1 A continuous; supports mid-power subsystems without external boost transistors |
| Dropout Voltage | 2 V at IO = 1 A; defines minimum headroom needed between input and regulated output |
| Line Regulation | 10 mV max over VI = 14.5 V to 30 V; maintains output stability despite input supply variation |
| Load Regulation | 11 mV max over IO = 5 mA to 1.5 A; ensures consistent voltage across wide load range |
| Ripple Rejection | 55 dB min at 120 Hz; suppresses AC ripple from rectified AC inputs |
| Quiescent Current | 5.1–8.0 mA; low standby draw suitable for always-on industrial modules |
Pinout & Package
MC7810ECDTXM uses the TO-252-3 (D-PAK) surface-mount package with exposed drain pad for thermal conduction. The package measures 6.7 mm × 6.2 mm × 2.4 mm and requires soldering to ≥1 cm² of 2-oz copper for full 1 A rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Input) | Unregulated DC input supply connection | Accepts 12–35 V input; must be decoupled with ≥0.33 µF ceramic capacitor near pin |
| 2 (GND) | Common reference and thermal path | Connects internally to exposed tab; must be tied to system ground plane for thermal and noise control |
| 3 (Output) | Regulated 10 V DC output | Delivers stabilized voltage; requires ≥0.1 µF ceramic capacitor within 5 mm for transient stability |
Key Features
| Feature | Design Value |
|---|---|
| Thermal Overload Protection | Shuts down output when junction temperature exceeds ~170°C; auto-recovers after cooldown |
| Short-Circuit Protection | Limits output current to ~230 mA during hard fault; prevents device destruction |
| Safe Operating Area (SOA) Protection | Dynamically constrains I×V product to avoid second breakdown of pass transistor |
| Fixed 10 V Output | Eliminates need for external feedback resistors; reduces BOM count and layout complexity |
| Wide Operating Temperature Range | -40°C to +125°C junction rating enables use in automotive under-hood and industrial control cabinets |
Applications
| Industrial PLC I/O Modules | Automotive Body Control Units |
|---|---|
Use Scenario: Powering digital isolators, CAN transceivers, and microcontroller peripherals in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: Primary 10 V local supply rail generator; provides clean, protected voltage independent of main 24 V bus fluctuations. Use Value: Enables reliable operation across -40°C to +85°C ambient with no external thermal management beyond standard PCB copper pour. |
Use Scenario: Supplying 10 V bias to window lift motor drivers and door lock actuators in 12 V vehicle architectures. IC Role / Device Role / Timing Role: Regulated auxiliary rail for high-side gate drivers and position sensor signal conditioning circuits. Use Value: Withstands load dump transients up to 35 V input and maintains regulation during cold-crank (6.5 V battery dips) when used with pre-regulator stage. |
| Medical Diagnostic Sensor Front-Ends | Point-of-Sale Terminal Power Management |
Use Scenario: Providing precision 10 V reference for 12-bit ADCs measuring ECG/EEG analog signals. IC Role / Device Role / Timing Role: Low-noise analog supply source; output noise ≤76 µV RMS (10 Hz–100 kHz) minimizes quantization error. Use Value: Eliminates need for post-regulation LDO filtering, reducing component count while meeting IEC 60601-1 leakage current limits via inherent isolation from input. |
Use Scenario: Generating 10 V rail for thermal print head drivers and smart card interface ICs in retail kiosks. IC Role / Device Role / Timing Role: Main logic supply for FPGA configuration and secure element communication. Use Value: Built-in short-circuit and thermal protection prevents field failures due to print head cable shorts or connector misinsertion. |
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 |
|---|---|---|---|
| LM7810CDT/NOPB (TI) | Same 10 V output, ±2% tolerance (tighter than MC7810ECDTXM's ±4%), TO-252 package, but higher quiescent current (6.5–9 mA) | Better initial accuracy suits metrology-grade references; less suitable for ultra-low-power wake-on-event designs | Select when ±2% VO tolerance is required and board space allows same D-PAK footprint |
| MC7810ACT (ON Semiconductor) | Same electrical specs but TO-220 through-hole package; no exposed thermal pad; lower thermal resistance to heatsink vs. PCB | Preferred for prototyping, low-volume assemblies, or where manual rework is required | Choose when mechanical mounting to external heatsink is preferred over PCB thermal design |
Compared with LM7810CDT/NOPB, MC7810ECDTXM offers looser initial tolerance but lower quiescent current and identical SOA/thermal protection architecture; compared with MC7810ACT, it trades through-hole serviceability for superior PCB-level thermal performance in automated SMT production.
Availability
MC7810ECDTXM is available at Aetrix Electronics and suitable for industrial automation, automotive electronics, and medical diagnostics requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for MC7810ECDTXM 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
ON Semiconductor (formerly Fairchild Semiconductor) is a global supplier of energy-efficient semiconductor solutions, specializing in power management, analog, and discrete devices for industrial, automotive, and computing markets.
The MC78XXE series was designed specifically for cost-sensitive, high-reliability linear regulation in harsh-environment applications where simplicity, ruggedness, and thermal resilience outweigh efficiency concerns.
FAQ
What is the maximum input voltage rating for MC7810ECDTXM?
The absolute maximum input voltage for MC7810ECDTXM is 35 V, as specified in the Absolute Maximum Ratings table. Operation above this level risks permanent damage. For reliable continuous operation, input voltage should be limited to ≤30 V under all conditions including ripple peaks and transients, especially when delivering full 1 A output current.
Does MC7810ECDTXM require external capacitors to operate stably?
Yes, MC7810ECDTXM requires an input capacitor (≥0.33 µF ceramic) placed within 10 mm of the input pin and an output capacitor (≥0.1 µF ceramic) placed within 5 mm of the output pin. These capacitors ensure loop stability, improve transient response, and reduce output noise. Omission may cause oscillation or excessive ripple under dynamic load conditions.
Can MC7810ECDTXM be used in adjustable-output configurations?
Yes, MC7810ECDTXM can be configured for adjustable output voltages using external resistive feedback networks, as documented in Figure 11 and Figure 12 of the MC78XXE datasheet. However, doing so bypasses the factory-trimmed 10 V reference, and output accuracy then depends on external resistor tolerance and temperature drift - the device itself remains optimized for fixed 10 V operation.
What thermal management is required for MC7810ECDTXM at 1 A output?
To sustain 1 A output current continuously, MC7810ECDTXM requires ≥1 cm² of 2-ounce copper connected to its exposed thermal pad on the PCB. Without adequate copper area, junction temperature will exceed 125°C under full load, triggering thermal shutdown. Thermal vias (≥4×0.3 mm) to inner ground planes further improve heat dissipation.
Is MC7810ECDTXM RoHS compliant and lead-free?
Yes, MC7810ECDTXM is RoHS compliant and lead-free per ON Semiconductor's product change notification PCN-17001. The TO-252 package uses matte tin (Sn) lead finish, and the device meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) for unlimited floor life at ≤30°C/85% RH.
MC7810ECDTXM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- 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):
- 10V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- -
- Protection Features:
- Over Temperature, Short Circuit
- Operating Temperature:
- 0°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DPAK
MC7810ECDTXM FAQ
1.How can I place an order for MC7810ECDTXM through Aetrix?
Please submit a Request for Quotation (RFQ) for MC7810ECDTXM 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 MC7810ECDTXM reliable?
The price and inventory of MC7810ECDTXM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC7810ECDTXM is usually 5 days.
3.What payment methods are accepted for MC7810ECDTXM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC7810ECDTXM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC7810ECDTXM?
MC7810ECDTXM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC7810ECDTXM 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 MC7810ECDTXM?
For technical support, including MC7810ECDTXM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC7810ECDTXM requirements.
6.How does Aetrix verify that MC7810ECDTXM is sourced from the original manufacturer or authorized distributors?
All MC7810ECDTXM 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 MC7810ECDTXM meets industry standards.
7.What is the process for return or replacement of MC7810ECDTXM?
All MC7810ECDTXM units undergo pre-shipment inspection (PSI). If there is an issue with MC7810ECDTXM, 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 MC7810ECDTXM part is unused and in its original packaging.
Return procedure for MC7810ECDTXM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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