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onsemi MC7806BTG
- Part No.:
- MC7806BTG
- Manufacturer:
- onsemi
- Package:
- TO-220-3
- Datasheet:
-
MC7806BTG.pdf
- Description:
- IC REG LINEAR 6V 1A TO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,620
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Product details
Overview
MC7806BTG from onsemi is a fixed-output +6.0 V, 1.0 A linear voltage regulator in TO-220 package with internal thermal shutdown, short-circuit current limiting, and safe-area compensation. It delivers stable output under input voltages from 8.5 V to 35 V and supports local on-card regulation in industrial power supplies, automotive control modules, and embedded system rails.
For engineers reviewing the MC7806BTG datasheet, pinout, applications, or equivalent options, this page provides verified electrical specs, thermal behavior, real-world stability conditions (e.g., 0.33 µF input bypass requirement), and validated drop-in alternatives for legacy design continuity and BOM rationalization.
Technical Context
The MC7806BTG implements a monolithic series-pass transistor architecture with built-in protection circuitry: thermal overload shutdown triggers at +150°C junction temperature, and short-circuit current limit holds peak output at 0.2 A when Vin = 35 V. Safe-area compensation dynamically reduces short-circuit current as VCE increases, preventing second breakdown.
It operates without external components for basic regulation but requires a minimum 0.33 µF input capacitor when located remotely from bulk filtering. Output noise is 10 µV/V (10 Hz–100 kHz), and ripple rejection reaches 62 dB at 120 Hz with Vin ≥ 11.5 V and IO = 500 mA - critical for analog-sensor and MCU supply integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | +6.0 V nominal, ±4% tolerance (5.76–6.24 V) at TJ = 25°C; maintains regulation across 5 mA–1.0 A load and 8.5–35 V input. |
| Output Current | 1.0 A continuous (with adequate heatsinking); peak current up to 2.2 A for short durations per safe-area-limited pulse testing. |
| Dropout Voltage | 2.0 V typical at IO = 1.0 A and TJ = 25°C - mandates minimum 8.5 V input for stable 6 V output under full load. |
| Ripple Rejection | 62 dB at 120 Hz (Vin = 11.5–18 V, IO = 500 mA) - suppresses AC line noise before reaching sensitive downstream logic or ADC references. |
| Quiescent Current | 3.3 mA typical (max 6.0 mA), enabling low-noise biasing without significant overhead in always-on subsystems. |
| Thermal Shutdown | Activates at TJ = +150°C; device resumes regulation after cooldown - eliminates need for external thermal monitoring in sealed enclosures. |
| Short-Circuit Limit | 0.2 A at TA = 25°C and Vin = 35 V - protects upstream supply and PCB traces during fault conditions without latch-up. |
Pinout & Package
MC7806BTG uses the industry-standard TO-220 package (Case 221AB), with the metal tab (heatsink surface) internally connected to Pin 2 (Ground). This configuration simplifies mechanical mounting and ensures low-impedance ground return path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Input | Unregulated DC input (8.5–35 V); must be bypassed with ≥0.33 µF capacitor near pin for high-frequency stability. |
| Pin 2 | Ground | Common reference for input and output; also electrically tied to heatsink tab - requires isolation if chassis ground is not system ground. |
| Pin 3 | Output | Regulated +6.0 V output; no output capacitor required for stability, but ≥0.1 µF improves transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Fixed +6.0 V output | Eliminates external resistor network; reduces BOM count and layout area vs. adjustable regulators in cost-sensitive 6 V rail designs. |
| Internal thermal shutdown | Prevents permanent damage during sustained overload or inadequate heatsinking - enables robust operation in unventilated industrial enclosures. |
| Safe-area compensated pass transistor | Guarantees SOA compliance across full VIN–VOUT range; avoids destructive secondary breakdown during output short or startup surge. |
| No external components required | Supports minimal footprint implementation: only input bypass cap needed for remote placement - ideal for space-constrained PCBs. |
| 1.5% to 4% output tolerance options | MC7806BTG specifies ±4% (B-grade), balancing cost and precision for non-critical digital logic and peripheral power rails. |
Applications
| Industrial Power Supply | Automotive Body Control Module |
|---|---|
|
Use Scenario: Local 6 V rail generation from 12 V battery or 24 V bus for microcontroller I/O buffers and CAN transceiver biasing. IC Role / Device Role: Primary linear regulator supplying isolated 6 V domain with inherent short-circuit and thermal fault containment. Use Value: Eliminates need for discrete protection circuitry; meets AEC-Q100 stress requirements via NCV-series compatibility path. |
Use Scenario: Powering window lift motor drivers and door lock actuators requiring clean, fault-tolerant 6 V logic supply. IC Role / Device Role: Fixed-voltage regulator delivering stable 6 V to H-bridge gate drivers and position sensor interfaces. Use Value: Withstands load dump transients up to 35 V input and sustains 1.0 A peak current during actuator stall events. |
| Embedded Sensor Node | Legacy Equipment Retrofit |
|
Use Scenario: Regulating power for analog front-end (AFE) and low-power MCU in battery-backed environmental monitors. IC Role / Device Role: Low-noise 6 V source with 10 µV/V output noise and 62 dB ripple rejection for precision ADC reference stability. Use Value: Enables <1 LSB error in 12-bit sensor readings without additional LDO post-regulation or ferrite filtering. |
Use Scenario: Direct replacement for obsolete 7806 variants in aging test equipment, PLC I/O cards, and medical diagnostic hardware. IC Role / Device Role: Pin-compatible upgrade offering improved thermal margin (+150°C shutdown) and tighter quiescent current control (3.3 mA typ). Use Value: Extends field life of legacy systems without PCB redesign; supports long-term obsolescence mitigation programs. |
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 |
|---|---|---|---|
| MC7806CD2TG | Same +6.0 V output and TO-220 package, but D2-grade (±4% tolerance) and rated for 0°C to +125°C operation (vs. −40°C to +125°C for MC7806BTG). | Lacks extended industrial temperature range; unsuitable for cold-start automotive or outdoor industrial use. | Select MC7806CD2TG only for commercial-temperature applications where cost is prioritized over wide-TJ coverage. |
| NCV7806BD2TR4G | Automotive-grade variant with AEC-Q100 qualification, same ±4% tolerance, and identical pinout; features enhanced ESD robustness (2 kV HBM). | Qualified for under-hood automotive environments; supports PPAP documentation and zero-defect manufacturing traceability. | Choose NCV7806BD2TR4G for new automotive designs requiring OEM compliance; MC7806BTG remains optimal for industrial and general-purpose use. |
Compared with MC7806CD2TG, MC7806BTG offers broader temperature capability (−40°C to +125°C) essential for harsh environments; versus NCV7806BD2TR4G, it provides identical performance at lower cost and lead time for non-automotive applications - making MC7806BTG the balanced choice for industrial and embedded systems requiring reliability without automotive certification overhead.
Availability
MC7806BTG is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, and embedded sensor nodes requiring stable component supply, long-life support, and consistent parametric performance across production batches.
Supply support for MC7806BTG 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 specializing in energy-efficient power management, analog, and sensor solutions for automotive, industrial, and cloud infrastructure markets.
The MC7800 series - including MC7806BTG - was designed for rugged, low-maintenance local regulation in cost-sensitive, high-reliability applications where simplicity, integrated protection, and proven thermal behavior outweigh programmability or ultra-low dropout.
FAQ
What is the maximum input voltage rating for MC7806BTG?
The absolute maximum input voltage for MC7806BTG is 35 V DC, as specified in the Maximum Ratings table. Operation above this level risks permanent damage due to junction breakdown. For reliable long-term use, the recommended maximum continuous input is 30 V - especially when combined with worst-case ripple and thermal derating.
Does MC7806BTG require an output capacitor for stability?
No, MC7806BTG does not require an output capacitor for stability - unlike many LDOs. However, adding a 0.1 µF ceramic capacitor at the output significantly improves transient response during load steps. The datasheet explicitly states CO is "not needed for stability" but "does improve transient response."
What is the thermal resistance (RθJA) of MC7806BTG in TO-220 package?
The thermal resistance from junction-to-ambient (RθJA) for MC7806BTG in standard TO-220 mounting (no heatsink) is 92°C/W. With a modest 10 cm² copper pour on FR-4 PCB, this can be reduced to ~65°C/W. Derating curves in the datasheet confirm 1.0 A output is sustainable up to +50°C ambient with appropriate board-level heatsinking.
Can MC7806BTG be used in adjustable configurations?
Yes - though not its primary function. The MC7806BTG can be configured as an adjustable regulator using external resistors and a Zener diode, as shown in Figure 10 of the datasheet. However, doing so forfeits factory-trimmed accuracy and introduces additional drift sources; dedicated adjustable regulators like LM317 are preferred for variable-output designs.
Is MC7806BTG RoHS-compliant and lead-free?
Yes, MC7806BTG is a Pb-free device, fully compliant with RoHS Directive 2011/65/EU. The "G" suffix in the part number explicitly denotes lead-free packaging and termination, and the datasheet confirms compliance in the Features section and Package Dimensions appendix.
MC7806BTG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- 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):
- 2V @ 1A (Typ)
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- 8 mA
- Current - Supply (Max):
- -
- PSRR:
- 65dB (120Hz)
- Control Features:
- -
- Protection Features:
- Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220
MC7806BTG FAQ
1.How can I place an order for MC7806BTG through Aetrix?
Please submit a Request for Quotation (RFQ) for MC7806BTG 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 MC7806BTG reliable?
The price and inventory of MC7806BTG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC7806BTG is usually 5 days.
3.What payment methods are accepted for MC7806BTG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC7806BTG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC7806BTG?
MC7806BTG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC7806BTG 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 MC7806BTG?
For technical support, including MC7806BTG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC7806BTG requirements.
6.How does Aetrix verify that MC7806BTG is sourced from the original manufacturer or authorized distributors?
All MC7806BTG 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 MC7806BTG meets industry standards.
7.What is the process for return or replacement of MC7806BTG?
All MC7806BTG units undergo pre-shipment inspection (PSI). If there is an issue with MC7806BTG, 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 MC7806BTG part is unused and in its original packaging.
Return procedure for MC7806BTG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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