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LM3671MFX-ADJ
+BOMIC REG BUCK ADJ 600MA SOT23-5
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ManufacturerTexas Instruments
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Mfr. Part #LM3671MFX-ADJ
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In Stock7211
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Specifications
| Attribute | Value |
| Part Status | Obsolete |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 2.7V |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output (Min / Fixed) | 1.1V |
| Voltage - Output (Max) | 3.3V |
| Current - Output | 600mA |
| Frequency - Switching | 2MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | SC-74A, SOT-753 |
| Supplier Device Package | SOT-23-5 |
| Base Product Number | LM3671 |
Overview
Description
The LM3671MFX-ADJ is a high-efficiency, low-dropout (LDO) voltage regulator designed for applications requiring adjustable output voltage. It features a wide input voltage range of 2.7V to 5.5V, making it suitable for battery-powered devices. The adjustable output voltage can be set between 0.8V and 3.3V, allowing flexibility for various electronic components.
Key features include high output current capability of up to 1A, low quiescent current for improved battery life, and fast transient response, ensuring stable operation under varying loads. The LM3671MFX-ADJ also incorporates built-in protection mechanisms such as thermal shutdown and overcurrent protection.
With a small footprint and minimal external components required, this LDO is ideal for space-constrained designs in portable electronics, consumer devices, and wireless applications. Its performance and efficiency make it a popular choice among engineers for powering sensitive analog and digital circuits.
Key features include high output current capability of up to 1A, low quiescent current for improved battery life, and fast transient response, ensuring stable operation under varying loads. The LM3671MFX-ADJ also incorporates built-in protection mechanisms such as thermal shutdown and overcurrent protection.
With a small footprint and minimal external components required, this LDO is ideal for space-constrained designs in portable electronics, consumer devices, and wireless applications. Its performance and efficiency make it a popular choice among engineers for powering sensitive analog and digital circuits.
Equivalent
Equivalent products to the LM3671MFX-ADJ include the TPS62740 from Texas Instruments, the MICROCHIP MCP1640, and the MAXM15462 from Maxim Integrated. These alternatives provide similar adjustable output voltage features and are suitable for low-power applications. Always verify specifications and requirements to ensure compatibility in your specific application.
Features
The LM3671MFX-ADJ is a high-efficiency, step-down voltage regulator designed for portable applications. Key features include:
1. Output Voltage Range: Adjustable output voltage from 0.8V to 3.3V.
2. Efficiency: High efficiency up to 95%, minimizing heat generation.
3. Input Voltage Range: Operates with input voltages from 2.5V to 5.5V.
4. Load Current: Supports output current up to 1A.
5. Compensation: Internally compensated for ease of use.
6. Switching Frequency: Operates at a fixed frequency of 2.4MHz, allowing for smaller external components.
7. Standby Current: Low quiescent current enhances battery life.
8. Thermal Protection: Integrated thermal shutdown feature for safety.
9. Soft Start: Reduces inrush current during startup.
10. Small Package: Available in a compact 8-pin MSOP package.
These features make the LM3671MFX-ADJ suitable for various battery-powered devices like smartphones and wearable technology.
1. Output Voltage Range: Adjustable output voltage from 0.8V to 3.3V.
2. Efficiency: High efficiency up to 95%, minimizing heat generation.
3. Input Voltage Range: Operates with input voltages from 2.5V to 5.5V.
4. Load Current: Supports output current up to 1A.
5. Compensation: Internally compensated for ease of use.
6. Switching Frequency: Operates at a fixed frequency of 2.4MHz, allowing for smaller external components.
7. Standby Current: Low quiescent current enhances battery life.
8. Thermal Protection: Integrated thermal shutdown feature for safety.
9. Soft Start: Reduces inrush current during startup.
10. Small Package: Available in a compact 8-pin MSOP package.
These features make the LM3671MFX-ADJ suitable for various battery-powered devices like smartphones and wearable technology.
Pinout
The LM3671MFX-ADJ is a step-down (buck) voltage regulator with a total of 6 pins. Its primary functions include converting a higher input voltage to a lower output voltage, adjustable through external resistors.
Here are the pin functions:
1. VIN: Input voltage supply.
2. GND: Ground reference for the circuit.
3. SW: Switch node connected to the inductor.
4. VOUT: Output voltage, where the regulated voltage is provided.
5. COMP: Compensation pin used for stability in the control loop.
6. ADJ: Adjust pin for setting the output voltage with resistors.
The device features high efficiency, low quiescent current, and is suitable for battery-powered applications.
Here are the pin functions:
1. VIN: Input voltage supply.
2. GND: Ground reference for the circuit.
3. SW: Switch node connected to the inductor.
4. VOUT: Output voltage, where the regulated voltage is provided.
5. COMP: Compensation pin used for stability in the control loop.
6. ADJ: Adjust pin for setting the output voltage with resistors.
The device features high efficiency, low quiescent current, and is suitable for battery-powered applications.
Manufacturer
The LM3671MFX-ADJ is manufactured by Texas Instruments (TI). Texas Instruments is a renowned American technology company primarily involved in the design and manufacturing of semiconductors and various integrated circuits. Established in 1930, TI has evolved to become a leader in the electronics industry, offering a wide range of products including analog and mixed-signal devices, embedded processors, and digital signal processors. The company serves various markets, including automotive, industrial, consumer electronics, and communication systems. TI is known for its innovation, extensive research and development efforts, and commitment to providing high-performance solutions that drive advancements in technology across multiple sectors.
Application
The LM3671MFX-ADJ is a low-dropout (LDO) linear voltage regulator primarily used in mobile and portable applications. Its application areas include power management for smartphones, tablets, wearables, and other battery-operated devices. It provides adjustable output voltage, making it suitable for varying voltage requirements in circuits. Additionally, it is used in microcontrollers, digital signal processors, and RF applications where stable voltage supply is crucial. Its compact size also makes it ideal for space-constrained applications.
Package
The LM3671MFX-ADJ is offered in a 3mm x 3mm, 16-pin LLP (Leadless Leadframe Package). This compact package type is designed for efficient thermal performance and space-saving in various applications.
