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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

STMicroelectronics L7806ACV-DG

Name: L7806ACV-DG
Brand: STMicroelectronics
SKU: L7806ACV-DG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: L7806ACV-DG

Manufacturer:: STMicroelectronics

Category:: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Package:: TO-220-3

Datasheet:: L7806ACV-DG.pdf

Description:: IC REG LINEAR 6V 1.5A TO220

Quantity:: RFQ Add To RFQ list

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Product details

Overview

L7806ACV-DG from STMicroelectronics is a three-terminal positive linear voltage regulator delivering a fixed 6 V output with ±2 % tolerance at 25 °C, 1.5 A maximum output current, thermal overload and short-circuit protection, and operation across 0 to 125 °C junction temperature - used for local on-card regulation in industrial power supplies and embedded control modules.

For engineers reviewing the L7806ACV-DG datasheet, L7806ACV-DG pinout, L7806ACV-DG application, or L7806ACV-DG equivalent, key selection criteria include dropout voltage (2 V @ 1 A), load regulation (≤100 mV over 5 mA–1.5 A), supply voltage rejection (65 dB @ 120 Hz), quiescent current (4.3–6 mA), and TO-220FP package thermal resistance (R_thJC = 5 °C/W).

Technical Context

This device implements a monolithic series-pass regulator architecture with internal current limiting, safe operating area (SOA) protection, and thermal shutdown circuitry - enabling robust operation without external protection components. It requires only two external capacitors (0.33 µF input, 0.1 µF output) for stability per standard test circuits.

Designed for fixed-voltage local regulation, it accepts input voltages up to 35 V (for 6 V output), maintains regulation down to 5 mA minimum load, and exhibits predictable drift (−0.8 mV/°C) and low output noise (45 µV/V, 10 Hz–100 kHz), making it suitable for noise-sensitive analog subsystems.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	6.0 V ±2 % at 25 °C; ensures stable logic or analog rail within tight tolerance for MCU I/O or sensor biasing
Max Output Current	1.5 A continuous; supports moderate-power peripherals like relays, displays, or multiple ICs on same rail
Dropout Voltage	2 V @ 1 A, 25 °C; requires ≥8 V input for regulated 6 V output under full load
Line Regulation	≤60 mV over VI = 8.6–25 V; minimizes output variation during input supply fluctuations
Load Regulation	≤100 mV over IO = 5 mA–1.5 A; maintains voltage stability across wide dynamic load range
Supply Rejection	65 dB @ 120 Hz; effectively attenuates ripple from unregulated DC or rectified AC sources
Thermal Protection	Internal junction thermal shutdown; prevents damage during sustained overload or inadequate heatsinking

Pinout & Package

Supplied in TO-220FP package (3-pin, vertical mounting, isolated tab), featuring integrated heat sink interface and creepage/clearance optimized for industrial PCB layouts.

Pin/Terminal	Circuit Role	Design Meaning
1 (Input)	Unregulated DC input	Accepts 8.6–35 V; must be decoupled with ≥0.33 µF ceramic capacitor near pin
2 (Ground)	Common reference node	Low-impedance return path; connects to system ground plane with minimal trace inductance
3 (Output)	Regulated 6 V output	Delivers stable voltage; requires ≥0.1 µF ceramic capacitor directly at pin for transient response

Key Features

Feature	Design Value
Fixed 6 V output with 2 % tolerance	Eliminates need for external feedback resistors; simplifies BOM and layout for cost-sensitive designs
Thermal overload and short-circuit protection	Enables self-recovery after fault clearance; no external current-sense or shutdown circuitry required
SOA (Safe Operating Area) protection	Prevents destructive second breakdown during transient overloads or capacitive loads
Extended temperature range (0 to 125 °C)	Validated for industrial ambient environments without derating up to max junction temperature
Low quiescent current (4.3–6 mA)	Minimizes standby power loss in always-on systems such as remote sensors or security controllers

Applications

Industrial PLC Power Rails

Automotive Body Control Modules

Use Scenario: Providing clean 6 V supply to microcontrollers, CAN transceivers, and analog sensors in programmable logic controller backplanes.

IC Role / Device Role / Timing Role: Local point-of-load regulator replacing centralized 6 V distribution to reduce noise coupling and IR drop.

Use Value: Delivers 1.5 A with ≤100 mV load regulation and 65 dB ripple rejection - ensuring reliable digital logic levels and sensor accuracy despite varying bus loading.

Use Scenario: Powering interior lighting drivers, window lift controllers, and door lock actuators in 12 V vehicle architectures.

IC Role / Device Role / Timing Role: Secondary regulator stepping down battery-supplied 12 V to stable 6 V for low-voltage motor drivers and status LEDs.

Use Value: Withstands automotive load dump transients via internal SOA and thermal shutdown, and operates reliably from −40 to 125 °C junction range.

Medical Diagnostic Instrumentation

Point-of-Sale Terminal Logic Supply

Use Scenario: Generating precision 6 V bias for op-amp front-ends and ADC reference buffers in portable ultrasound or ECG signal chains.

IC Role / Device Role / Timing Role: Low-noise analog supply regulator with 45 µV/V output noise and −0.8 mV/°C drift compensation.

Use Value: Maintains signal integrity by limiting output voltage variation to <±120 mV over full load and temperature range - critical for sub-mV measurement accuracy.

Use Scenario: Supplying 6 V to touch-screen controllers, thermal printers, and secure element ICs in retail payment terminals.

IC Role / Device Role / Timing Role: Primary logic rail regulator supporting burst-mode operation of display and communication interfaces.

Use Value: Sustains 1.5 A peak current during printer head activation while maintaining <60 mV line regulation - preventing UI freezes or transaction timeouts.

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
LM7806CD2T	TO-263 (D²PAK) package; R_thJC = 3 °C/W vs. 5 °C/W; higher thermal efficiency but requires surface-mount assembly	Preferred for high-density PCBs with limited vertical space; less suited for through-hole prototyping or manual repair	Select when board real estate or thermal performance outweighs assembly flexibility
MC7806ACT	TO-220 package (non-FP); no isolation between tab and pin 2 (ground); lower creepage distance	Suitable for non-isolated consumer-grade applications; not recommended where reinforced insulation or safety certification is required	Choose only for cost-driven, non-safety-critical designs with verified grounding scheme

Compared with LM7806CD2T and MC7806ACT, L7806ACV-DG offers superior isolation (TO-220FP insulated tab), certified industrial temperature range (0–125 °C), and tighter initial tolerance (±2 %), making it optimal for safety-compliant and thermally demanding deployments.

Availability

L7806ACV-DG is available at Aetrix Electronics and suitable for industrial PLC power rails, automotive body control modules, medical diagnostic instrumentation, and point-of-sale terminal logic supplies requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for L7806ACV-DG 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, microcontroller, power, and sensing solutions for industrial, automotive, and consumer markets.

L7806ACV-DG belongs to the L78 positive voltage regulator IC family - engineered for rugged, fixed-output local regulation in harsh environments where reliability, thermal resilience, and protection integration are mandatory.

FAQ

What is the minimum input voltage required for regulation at full 1.5 A load?

The L7806ACV-DG requires a minimum input voltage of 8.6 V to maintain 6 V output regulation at 1 A (per datasheet Table 4), and ≥9 V is recommended for 1.5 A operation considering worst-case dropout (2 V) and line/load regulation margins. Below this, output voltage sags or regulation is lost.

Can this regulator be used with an input voltage of 40 V?

No - the absolute maximum input voltage is 35 V for VO = 6 V (Table 1). Applying 40 V exceeds the rated limit and risks permanent damage due to internal junction breakdown, even if thermal protection activates. A pre-regulator or Zener clamp is required for higher input sources.

Is a heat sink mandatory for 1.5 A continuous operation?

Yes - at 1.5 A with typical 12 V input, power dissipation exceeds 9 W. With R_thJA = 60 °C/W (TO-220FP), junction temperature rise would exceed 540 °C above ambient - far beyond the 125 °C limit. A properly sized heat sink reducing total thermal resistance to ≤10 °C/W is essential for continuous 1.5 A use.

Does the L7806ACV-DG require input and output capacitors?

Yes - STMicroelectronics specifies a minimum 0.33 µF ceramic capacitor at the input and 0.1 µF ceramic capacitor at the output, placed as close as possible to their respective pins. Omitting either compromises stability, increases ripple, and may cause oscillation or thermal shutdown under dynamic load conditions.

L7806ACV-DG Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

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:: 1.5A

Current - Quiescent (Iq):: 6 mA

Current - Supply (Max):: -

PSRR:: 65dB (120Hz)

Control Features:: -

Protection Features:: Over Temperature, Short Circuit

Operating Temperature:: 0°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220

L7806ACV-DG FAQ

1.How can I place an order for L7806ACV-DG through Aetrix?

Please submit a Request for Quotation (RFQ) for L7806ACV-DG 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 L7806ACV-DG reliable?

The price and inventory of L7806ACV-DG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for L7806ACV-DG is usually 5 days.

3.What payment methods are accepted for L7806ACV-DG?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for L7806ACV-DG transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for L7806ACV-DG?

L7806ACV-DG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your L7806ACV-DG 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 L7806ACV-DG?

For technical support, including L7806ACV-DG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your L7806ACV-DG requirements.

6.How does Aetrix verify that L7806ACV-DG is sourced from the original manufacturer or authorized distributors?

All L7806ACV-DG 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 L7806ACV-DG meets industry standards.

7.What is the process for return or replacement of L7806ACV-DG?

All L7806ACV-DG units undergo pre-shipment inspection (PSI). If there is an issue with L7806ACV-DG, 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 L7806ACV-DG part is unused and in its original packaging.

Return procedure for L7806ACV-DG:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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