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LM3671MF-3.3
+StücklisteIC REG BUCK 3.3V 600MA SOT23-5
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HerstellerTexas Instruments
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Herstellerteil #LM3671MF-3.3
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Auf Lager4526
365 Tage Qualitätsgarantie
7*24 Stunden-Servicegarantie
90-Tage Kundendienstgarantie
Originalproduktgarantie
Spezifikationen
| Attribut | Wert |
| Part Status | Obsolete |
| Base Product Number | LM3671 |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Fixed |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 2.7V |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Current - Output | 600mA |
| Frequency - Switching | 2MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package | SC-74A, SOT-753 |
| Supplier Device Package | SOT-23-5 |
| Packaging | Tape & Reel (TR) |
Übersicht
Description
The LM3671MF-3.3 is a high-efficiency, low-noise step-down DC-DC converter designed to provide a stable 3.3V output. It is part of the LM3671 series, which is optimized for portable applications that require compact size and efficient power management. The converter operates with a 2.7V to 5.5V input voltage range, making it suitable for devices powered by a single lithium-ion battery or other low-voltage sources.
Key features include a fixed output voltage of 3.3V, a typical efficiency of over 90%, and a maximum output current of 600mA. The LM3671MF-3.3 uses a current-mode PWM operation to maintain efficiency across a wide load range, while its low quiescent current conserves battery life in portable applications.
The device is housed in a small SOT-23 package, contributing to its suitability for space-constrained designs. Additionally, it features internal soft-start, over-current protection, and thermal shutdown, enhancing reliability and performance. Its low-noise operation makes it ideal for powering sensitive electronic components in mobile phones, PDAs, and similar applications.
Key features include a fixed output voltage of 3.3V, a typical efficiency of over 90%, and a maximum output current of 600mA. The LM3671MF-3.3 uses a current-mode PWM operation to maintain efficiency across a wide load range, while its low quiescent current conserves battery life in portable applications.
The device is housed in a small SOT-23 package, contributing to its suitability for space-constrained designs. Additionally, it features internal soft-start, over-current protection, and thermal shutdown, enhancing reliability and performance. Its low-noise operation makes it ideal for powering sensitive electronic components in mobile phones, PDAs, and similar applications.
Equivalent
The LM3671MF-3.3 is a step-down voltage regulator. Equivalent products include the TPS62160, MIC5205-3.3YM5, and AP2112K-3.3TRG1. These are low-dropout (LDO) regulators or DC-DC converters with similar output voltage ratings. When considering equivalents, verify the specifications such as input voltage range, output current, and efficiency to ensure compatibility with your application.
Features
The LM3671MF-3.3 is a high-efficiency, step-down DC-DC converter designed by Texas Instruments. It features a fixed output voltage of 3.3V and operates with an input voltage range of 2.7V to 5.5V. The device can deliver up to 600mA of output current, making it suitable for portable and battery-powered applications.
Key features include a low dropout of 300mV at full load, ensuring efficient operation even at low input voltages. It supports a high switching frequency of 2MHz, which allows the use of small external components and reduces the overall solution size. The LM3671MF-3.3 also features a low quiescent current of 16µA, aiding in extended battery life.
The device includes an enable pin for easy control, as well as integrated soft-start, over-current protection, and thermal shutdown for reliable operation. Its small SOT-23 package makes it ideal for space-constrained applications. Overall, the LM3671MF-3.3 offers a compact, efficient solution for powering low-voltage digital circuits.
Key features include a low dropout of 300mV at full load, ensuring efficient operation even at low input voltages. It supports a high switching frequency of 2MHz, which allows the use of small external components and reduces the overall solution size. The LM3671MF-3.3 also features a low quiescent current of 16µA, aiding in extended battery life.
The device includes an enable pin for easy control, as well as integrated soft-start, over-current protection, and thermal shutdown for reliable operation. Its small SOT-23 package makes it ideal for space-constrained applications. Overall, the LM3671MF-3.3 offers a compact, efficient solution for powering low-voltage digital circuits.
Pinout
The LM3671MF-3.3 is a step-down DC-DC converter with a fixed output voltage of 3.3V. It is housed in an 8-pin Mini SOIC package, which is compact and suitable for space-constrained applications.
Here's a concise breakdown of its pin functionality:
1. Vin: Input voltage supply.
2. GND: Ground connection.
3. EN: Enable pin. When high, the device is active; when low, the device is in shutdown mode.
4. SW: Switch pin. Connects to the inductor.
5. Vout: Output voltage pin.
6. FB: Feedback pin. Used for regulating the output voltage.
7. NC: No connection. This pin is typically left unconnected.
8. NC: Another no connection pin, similar to pin 7.
This compact configuration allows efficient voltage regulation while minimizing the number of external components required for operation. Always refer to the manufacturer's datasheet for detailed specifications and application guidelines.
Here's a concise breakdown of its pin functionality:
1. Vin: Input voltage supply.
2. GND: Ground connection.
3. EN: Enable pin. When high, the device is active; when low, the device is in shutdown mode.
4. SW: Switch pin. Connects to the inductor.
5. Vout: Output voltage pin.
6. FB: Feedback pin. Used for regulating the output voltage.
7. NC: No connection. This pin is typically left unconnected.
8. NC: Another no connection pin, similar to pin 7.
This compact configuration allows efficient voltage regulation while minimizing the number of external components required for operation. Always refer to the manufacturer's datasheet for detailed specifications and application guidelines.
Manufacturer
The LM3671MF-3.3 is manufactured by Texas Instruments, a global technology company. Texas Instruments specializes in designing and manufacturing semiconductors and integrated circuits used in a wide range of electronic applications. They are one of the largest and most well-known companies in the semiconductor industry, catering to various sectors including consumer electronics, automotive, industrial, and communications equipment.
Application
The LM3671MF-3.3 is a step-down DC-DC converter designed for use in portable and battery-powered devices. Its primary application areas include mobile phones, PDAs, and MP3 players, where efficient power management is crucial. It is also suitable for digital cameras, GPS devices, and other handheld electronics requiring a stable 3.3V supply. Additionally, the LM3671MF-3.3 is used in industrial and automotive applications where space and energy efficiency are priorities. Its small footprint and high efficiency make it ideal for compact designs and systems requiring extended battery life.
Package
The LM3671MF-3.3 is a step-down DC-DC converter from Texas Instruments. It is available in a small SOT-23 package, specifically a 6-pin SOT-23 (also known as SOT-23-6). This compact package is suitable for space-constrained applications.
