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onsemi MC78M06CDTRK
- Part No.:
- MC78M06CDTRK
- Manufacturer:
- onsemi
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
MC78M06CDTRK.pdf
- Description:
- IC REG LINEAR 6V 500MA DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:2,673
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Product details
Overview
MC78M06CDTRK from onsemi is a 500 mA, 6.0 V fixed-output linear voltage regulator in DPAK-3 (TO-252) package, featuring internal thermal shutdown, short-circuit current limiting, and safe-area compensation for rugged local regulation. It delivers stable 6.0 V output across 5.0 mA–500 mA load, with ±2.5% initial accuracy at 25°C and dropout voltage of 2.0 V, widely used in industrial power supplies and embedded control modules.
For engineers reviewing the MC78M06CDTRK datasheet, pinout, applications, or equivalent options, key selection criteria include output voltage tolerance (±2.5%), thermal protection behavior, dropout voltage under peak load, PCB copper area requirements for heatsinking, and compatibility with standard DPAK footprint layouts.
Technical Context
The MC78M06CDTRK implements a monolithic three-terminal series pass architecture with built-in current limiting and thermal foldback. Its internal safe-area compensation dynamically reduces short-circuit current as input-to-output differential increases, preventing secondary breakdown during fault conditions.
Designed for operation from 8.0 V to 21 V input, it maintains regulation over −40°C to +125°C junction temperature range (though this specific variant is rated 0°C to +125°C), with ripple rejection ≥59 dB at 120 Hz and output noise ≤45 µVRMS (10 Hz–100 kHz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 6.0 V nominal, 5.75–6.25 V at 25°C - ensures compatibility with 6 V logic rails and analog sensors requiring tight DC bias |
| Max Output Current | 500 mA continuous - supports mid-power microcontrollers, op-amps, and interface ICs without external boosting |
| Dropout Voltage | 2.0 V typical at 25°C - requires minimum 8.0 V input for stable 6.0 V output under full load |
| Line Regulation | 5.0 mV typical (8–25 V input) - limits output drift due to upstream supply variation |
| Load Regulation | 20 mV typical (5–500 mA load) - maintains voltage stability across dynamic load steps |
| Ripple Rejection | 59 dB min at 120 Hz - suppresses rectified AC ripple from unregulated DC inputs |
| Thermal Shutdown | Active at +150°C junction - protects against sustained overload or inadequate heatsinking |
Pinout & Package
DPAK-3 (TO-252) surface-mount package with exposed thermal pad (pin 2 connected to GND). Requires minimum 20 mm² copper pour for 500 mA operation at ambient ≤50°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Input) | Voltage input terminal | Accepts 8.0–21 V unregulated DC; bypass capacitor required for stability |
| 2 (GND) | Ground reference and thermal pad | Must be soldered to large PCB copper area for thermal conduction; electrically tied to case |
| 3 (Output) | Regulated 6.0 V output | Delivers up to 500 mA; output capacitor recommended for transient response |
Key Features
| Feature | Design Value |
|---|---|
| No external components required | Self-contained regulation with integrated pass transistor, feedback, and protection - eliminates need for external resistors or capacitors in basic configurations |
| Internal thermal overload protection | Automatic shutdown at +150°C junction temperature - prevents permanent damage during sustained overloads or poor heatsinking |
| Short-circuit current limiting | 350 mA typical short-circuit current - limits fault energy and enables safe recovery after overload removal |
| Safe-area compensated output transistor | Reduces short-circuit current as VI−VO increases - avoids second breakdown during high-differential faults |
| Pb-free DPAK-3 package | RoHS-compliant TO-252 footprint with thermal pad - compatible with standard reflow profiles and automated assembly |
Applications
| Industrial PLC I/O Module | Automotive Body Control Unit |
|---|---|
Use Scenario: Powering digital isolators and CAN transceivers in modular I/O racks with shared 12 V bus. IC Role / Device Role / Timing Role: Local 6 V rail generation for signal conditioning circuitry adjacent to field terminals. Use Value: 500 mA output sustains simultaneous operation of 4–6 isolated channels; thermal shutdown prevents latch-up during wiring faults. | Use Scenario: Supplying 6 V to window lift motor drivers and door lock actuators in low-voltage subsystems. IC Role / Device Role / Timing Role: Secondary regulation stage converting 12 V battery to stable 6 V for brushed DC motor H-bridge logic. Use Value: Dropout of 2.0 V allows operation down to 8.0 V input - accommodates cold-crank dips while maintaining MCU communication integrity. |
| Medical Patient Monitor Front-End | Point-of-Sale Terminal Power Management |
Use Scenario: Biasing precision analog front-end (AFE) circuits for ECG/SpO₂ sensing with ultra-low noise requirements. IC Role / Device Role / Timing Role: Clean 6 V supply for instrumentation amplifiers and ADC reference buffers. Use Value: 45 µVRMS output noise and 59 dB ripple rejection minimize baseline wander and harmonic interference in biopotential signals. | Use Scenario: Regulating 6 V for thermal print head drivers and smart card readers in compact retail terminals. IC Role / Device Role / Timing Role: Compact, cost-effective local regulation replacing switching solutions where EMI must be minimized. Use Value: DPAK-3 footprint enables dense layout; no external compensation simplifies BOM and reduces board space vs. buck converters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM78M06CDT | Same 6 V output, 500 mA rating, but TO-252-3 package with different marking and slightly higher load regulation (max 120 mV vs. 60 mV) | Identical functional role; requires same PCB footprint but may need layout review for thermal pad solder mask | Select when sourcing from TI distribution channels or when legacy LM78M06 design reuse is prioritized |
| NCV78M06BDTRKG | Automotive-grade variant with −40°C to +125°C operating range, AEC-Q100 qualified, same DPAK-3 package and electrical specs | Required for automotive body electronics; adds qualification documentation and extended temp validation | Select for automotive OEM programs where PPAP compliance and extended temperature margin are mandatory |
Compared with LM78M06CDT and NCV78M06BDTRKG, the MC78M06CDTRK offers tighter load regulation (60 mV max) and lower quiescent current change (0.5 mA), making it preferable for industrial applications demanding consistent voltage under varying loads without automotive certification overhead.
Availability
MC78M06CDTRK is available at Aetrix Electronics and suitable for industrial control systems, medical instrumentation, and point-of-sale terminals requiring stable component supply with RoHS-compliant packaging and long-term production support.
Supply support for MC78M06CDTRK 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 (formerly ON Semiconductor) is a global semiconductor supplier focused on energy-efficient electronics, delivering silicon-based solutions for automotive, industrial, cloud, and IoT markets.
The MC78M00 series was designed specifically for robust, low-cost local voltage regulation in space-constrained embedded systems where reliability under thermal and overload stress is critical.
FAQ
What is the maximum input voltage for MC78M06CDTRK?
The absolute maximum input voltage for MC78M06CDTRK is 35 V DC, but for reliable operation within specifications, input should remain between 8.0 V and 21 V. Exceeding 21 V increases power dissipation and thermal stress, especially at full 500 mA load, and may trigger thermal shutdown if heatsinking is insufficient. The device's 2.0 V dropout means 8.0 V is the practical minimum for regulation.
Does MC78M06CDTRK require an input bypass capacitor?
Yes, MC78M06CDTRK requires a minimum 0.33 µF tantalum or low-ESR ceramic capacitor placed directly across pins 1 (Input) and 2 (GND). This stabilizes the regulator under fast load transients and suppresses high-frequency noise from upstream sources. Omitting it risks oscillation or erratic behavior, particularly with long input traces or switching supply inputs.
What is the thermal resistance (θJA) of MC78M06CDTRK in its DPAK-3 package?
The MC78M06CDTRK in DPAK-3 (Case 369C) has a junction-to-air thermal resistance (θJA) of 92°C/W under standard JEDEC test conditions (single-layer 1 oz. copper, 1 in² pad). With a 20 mm² thermal pad and 2 oz. copper, θJA improves to ~50°C/W - enabling 500 mA operation up to 50°C ambient without additional heatsinking.
Can MC78M06CDTRK be used in automotive applications?
The standard MC78M06CDTRK is rated for 0°C to +125°C junction temperature and is not AEC-Q100 qualified. For automotive use, select the NCV78M06BDTRKG variant, which shares identical electrical specs and DPAK-3 packaging but adds automotive qualification, extended −40°C to +125°C operation, and PPAP documentation support.
How does the short-circuit protection behave on MC78M06CDTRK?
Under short-circuit conditions, MC78M06CDTRK limits output current to approximately 350 mA (typical) and enters thermal shutdown if junction temperature exceeds +150°C. Once the fault is removed and temperature drops below +135°C, the device automatically recovers - no reset or power cycle is needed. This behavior is enabled by internal safe-area compensation and thermal foldback circuitry.
MC78M06CDTRK 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):
- 6V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 500mA
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- 80dB (120Hz)
- Control Features:
- -
- Protection Features:
- Over Temperature, Short Circuit
- Operating Temperature:
- 0°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DPAK
MC78M06CDTRK FAQ
1.How can I place an order for MC78M06CDTRK through Aetrix?
Please submit a Request for Quotation (RFQ) for MC78M06CDTRK 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 MC78M06CDTRK reliable?
The price and inventory of MC78M06CDTRK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC78M06CDTRK is usually 5 days.
3.What payment methods are accepted for MC78M06CDTRK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC78M06CDTRK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC78M06CDTRK?
MC78M06CDTRK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC78M06CDTRK 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 MC78M06CDTRK?
For technical support, including MC78M06CDTRK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC78M06CDTRK requirements.
6.How does Aetrix verify that MC78M06CDTRK is sourced from the original manufacturer or authorized distributors?
All MC78M06CDTRK 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 MC78M06CDTRK meets industry standards.
7.What is the process for return or replacement of MC78M06CDTRK?
All MC78M06CDTRK units undergo pre-shipment inspection (PSI). If there is an issue with MC78M06CDTRK, 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 MC78M06CDTRK part is unused and in its original packaging.
Return procedure for MC78M06CDTRK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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