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STMicroelectronics L78L06ABD13TR
- Part No.:
- L78L06ABD13TR
- Manufacturer:
- STMicroelectronics
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
L78L06ABD13TR.pdf
- Description:
- IC REG LINEAR 6V 100MA 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,447
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Product details
Overview
L78L06ABD13TR from STMicroelectronics is a three-terminal positive linear voltage regulator delivering a fixed 6 V output at up to 100 mA, featuring thermal overload and short-circuit protection, no external components required, ±4% output voltage tolerance (AB grade), and 1.7 V dropout voltage. It serves as a local on-card regulator for noise-sensitive analog and digital subsystems in industrial control modules.
For engineers reviewing the L78L06ABD13TR datasheet, L78L06ABD13TR pinout, L78L06ABD13TR application, or L78L06ABD13TR equivalent, this page provides verified electrical characteristics, package-specific thermal data, AB-grade temperature range (-40°C to +125°C), and validated alternative options for fixed-voltage regulation in space-constrained PCB designs.
Technical Context
The L78L06ABD13TR implements internal current limiting and thermal shutdown circuitry, enabling robust operation without external protection components. Its architecture eliminates the need for external capacitors beyond the recommended 0.33 µF input and 0.1 µF output ceramic decoupling.
Designed for fixed-output local regulation, it replaces Zener diode/resistor networks with lower quiescent current (6 mA typ. at 25°C), reduced output noise (50 µV RMS, 10 Hz–100 kHz), and improved supply voltage rejection (39–46 dB at 120 Hz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 6.0 V ±4% (min 5.76 V, max 6.24 V at 25°C); ensures stable rail for 5.5–6.5 V logic or analog ICs. |
| Max Output Current | 100 mA continuous; supports low-power microcontrollers, sensors, and interface ICs without heatsinking. |
| Dropout Voltage | 1.7 V at 40 mA; enables regulation from 7.7 V input, suitable for single-cell LiFePO₄ or dual-cell alkaline supplies. |
| Quiescent Current | 6 mA typical at 25°C; minimizes standby power loss in battery-backed systems. |
| Supply Rejection | 39–46 dB at 120 Hz; suppresses ripple from unregulated wall adapters or switching pre-regulators. |
| Output Noise | 50 µV RMS (10 Hz–100 kHz); preserves signal integrity in ADC reference or op-amp biasing applications. |
| Operating Temp | -40°C to +125°C junction; qualified for automotive under-hood and industrial motor-control environments. |
Pinout & Package
Supplied in SOT-89 package: compact surface-mount outline with exposed die attach pad for enhanced thermal performance (RthJA = 55°C/W with 6 cm² copper pour). Pin 1 = VOUT, Pin 2 = GND, Pin 3 = VIN.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | VOUT | Regulated 6 V output; connects directly to load and 0.1 µF ceramic capacitor for stability. |
| Pin 2 | GND | Common reference and thermal path; must be tied to large copper area for thermal dissipation. |
| Pin 3 | VIN | Unregulated input (min 7.7 V, max 20 V); requires 0.33 µF ceramic capacitor within 10 mm. |
Key Features
| Feature | Design Value |
|---|---|
| Thermal Overload Protection | Automatic shutdown at safe junction temperature; recovers autonomously after cooling-no latch-up risk. |
| Short-Circuit Protection | Current-limited output (≈150 mA) prevents damage during sustained output faults or board shorts. |
| No External Components | Stable operation with only two ceramic capacitors-reduces BOM count and layout area vs. discrete regulators. |
| Low Output Noise | 50 µV RMS enables use in precision analog front-ends without additional filtering stages. |
| Wide Input Range | Supports 8.5–20 V input, compatible with 9 V wall adapters, 12 V industrial rails, and buck converter outputs. |
Applications
| Industrial Sensor Node | Automotive Body Control Module |
|---|---|
Use Scenario: Powering a 16-bit ADC, temperature sensor, and CAN transceiver from a noisy 12 V vehicle bus. IC Role / Device Role / Timing Role: Local 6 V regulator providing clean, isolated supply for analog signal chain and digital logic. Use Value: 50 µV noise and 46 dB SVR prevent ADC quantization errors and CAN bit errors caused by supply ripple. |
Use Scenario: Supplying microcontroller I/O banks and LED drivers in door module electronics. IC Role / Device Role / Timing Role: Fixed-voltage regulator ensuring consistent logic levels across -40°C to +125°C ambient. Use Value: AB-grade temp range and 1.7 V dropout allow reliable operation during cold cranking (battery dip to 6.5 V). |
| Medical Portable Monitor | Smart Home Hub Controller |
Use Scenario: Regulating power for ECG front-end amplifiers and display backlight drivers. IC Role / Device Role / Timing Role: Low-noise 6 V source replacing Zener/resistor network to reduce thermal drift and power loss. Use Value: 6 mA quiescent current extends battery life in rechargeable handheld units without compromising signal fidelity. |
Use Scenario: Providing stable 6 V rail to Wi-Fi SoC, memory, and USB peripherals from a shared 12 V DC input. IC Role / Device Role / Timing Role: On-board point-of-load regulator eliminating distribution losses and noise coupling. Use Value: Compact SOT-89 footprint saves PCB space while thermal design (55°C/W) supports continuous 80 mA loads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output linear regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM78L06ACZ/NOPB | ±5% tolerance (C grade), wider operating temp (0°C to +125°C), higher quiescent current (5.5–8.5 mA), TO-92 only. | Lacks extended low-temp support; unsuitable for automotive or outdoor industrial use below 0°C. | Select if cost sensitivity outweighs temp range and noise requirements; verify TO-92 thermal derating. |
| TLV76060DBVR | 6 V output, ±1% tolerance, 100 mA, ultra-low IQ (3 µA), SOT-23-5, but 2.5 V min input (higher dropout). | Cannot regulate from 7.7 V input like L78L06ABD13TR; requires ≥8.5 V input for same headroom. | Choose for battery-powered systems needing microamp quiescent current; accept higher minimum input voltage. |
Compared with LM78L06ACZ/NOPB, L78L06ABD13TR offers tighter tolerance and broader temperature range; versus TLV76060DBVR, it delivers superior dropout performance at the expense of quiescent current-critical for line-powered or high-ambient applications.
Availability
L78L06ABD13TR is available at Aetrix Electronics and suitable for industrial sensor nodes, automotive body control modules, medical portable monitors, and smart home hub controllers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for L78L06ABD13TR 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, MCU, power, and sensor solutions for industrial, automotive, and consumer markets.
L78L06ABD13TR belongs to the L78L series of three-terminal positive voltage regulators, engineered for cost-effective, robust local regulation in space-constrained PCBs where simplicity, reliability, and wide temperature operation are essential.
FAQ
What is the maximum input voltage for L78L06ABD13TR?
The absolute maximum DC input voltage is 20 V for VO = 6 V, per Table 1 in the datasheet. Operation above this risks permanent damage. For reliable long-term use, ST recommends limiting VI to ≤18 V to maintain thermal margin under full 100 mA load at high ambient temperatures.
Does L78L06ABD13TR require input and output capacitors?
Yes: a 0.33 µF ceramic capacitor on the input (within 10 mm of Pin 3) and a 0.1 µF ceramic capacitor on the output (directly at Pin 1) are mandatory for stability and transient response, as specified in Figure 3 and Section 6 of the datasheet. Omission causes oscillation or poor load regulation.
Can L78L06ABD13TR be used in parallel to increase current capacity?
No-parallel operation is not supported. The L78L06ABD13TR lacks current-sharing features; mismatched output voltages will cause one device to dominate conduction, leading to thermal runaway and failure. Use a higher-current regulator (e.g., L7806CD2T) instead.
Is the SOT-89 package thermally enhanced compared to TO-92?
Yes: the SOT-89 variant uses an internally modified leadframe with Pins 2, 3, 6, and 7 (in SO-8) or the exposed tab (in SOT-89) electrically connected to the die attach flag, reducing RthJA to 55°C/W with 6 cm² copper-versus 200°C/W for TO-92-enabling higher continuous current without heatsinking.
L78L06ABD13TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 30V
- Voltage - Output (Min/Fixed):
- 6V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 100mA
- Current - Quiescent (Iq):
- 5.5 mA
- Current - Supply (Max):
- 6 mA
- PSRR:
- 46dB (120Hz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
L78L06ABD13TR FAQ
1.How can I place an order for L78L06ABD13TR through Aetrix?
Please submit a Request for Quotation (RFQ) for L78L06ABD13TR 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 L78L06ABD13TR reliable?
The price and inventory of L78L06ABD13TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for L78L06ABD13TR is usually 5 days.
3.What payment methods are accepted for L78L06ABD13TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for L78L06ABD13TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for L78L06ABD13TR?
L78L06ABD13TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your L78L06ABD13TR 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 L78L06ABD13TR?
For technical support, including L78L06ABD13TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your L78L06ABD13TR requirements.
6.How does Aetrix verify that L78L06ABD13TR is sourced from the original manufacturer or authorized distributors?
All L78L06ABD13TR 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 L78L06ABD13TR meets industry standards.
7.What is the process for return or replacement of L78L06ABD13TR?
All L78L06ABD13TR units undergo pre-shipment inspection (PSI). If there is an issue with L78L06ABD13TR, 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 L78L06ABD13TR part is unused and in its original packaging.
Return procedure for L78L06ABD13TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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