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LM3671MFX-ADJ
IC REG BUCK ADJ 600MA SOT23-5
- Manufacturer
- Mfr. Part #LM3671MFX-ADJ
- Package
- Datasheet
- In Stock6958
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Specifications
| 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
Key features of the LM3671MFX-ADJ include its tiny 5-pin SOT-23 package, current-mode PWM operation for fast transient response, and a wide input voltage range typically from 2.7V to 5.5V. It operates at a fixed frequency (around 2MHz), helping to minimize external component sizes, which is crucial for compact designs. The LM3671MFX-ADJ also incorporates internal compensation and soft-start to prevent inrush current and ensure stable operation.
The adjustable output voltage feature allows for flexibility in setting the desired output through an external resistor network. Additionally, the device includes protection features such as thermal shutdown and current limit to safeguard against over-temperature conditions and excessive load currents, enhancing reliability in various operating environments.
Features
1. Adjustable Output Voltage: It offers an adjustable output voltage range, providing flexibility for various applications.
2. High Efficiency: The device delivers efficiency up to 95%, optimizing battery life in portable devices.
3. Input Voltage Range: It operates with an input voltage range from 2.7V to 5.5V, accommodating a wide array of power sources.
4. Low Quiescent Current: The LM3671MFX-ADJ features a low quiescent current, aiding in extended battery life.
5. Fixed Frequency Operation: It operates at a fixed frequency of 2 MHz, allowing for the use of small, low-cost inductors and capacitors.
6. Integrated Switches: Incorporates integrated FET switches to reduce component count and solution size.
7. Current Overload Protection: Features current overload protection to prevent damage during overload conditions.
8. Thermal Shutdown: Includes thermal shutdown protection to safeguard the device under high-temperature conditions.
9. Compact Package: Available in a small SOT-23 package, facilitating space-saving designs.
These features make the LM3671MFX-ADJ suitable for applications like mobile phones, portable media players, and other battery-operated devices.
Package
Pinout
1. SW (Switch Output): Connects to the inductor and is the switching node.
2. GND (Ground): Ground reference for the device.
3. FB (Feedback): Used to set the output voltage via an external resistor divider.
4. EN (Enable): Turns the device on or off. High voltage enables the regulator.
5. Vin (Input Voltage): Supply voltage input pin.
6. Vout (Output Voltage): Connects to the output capacitor.
This setup allows the LM3671MFX-ADJ to efficiently convert a higher input voltage to a lower output voltage, with the output adjustable based on the resistors connected to the FB pin.
Manufacturer
Application
Equivalent
1. Texas Instruments TPS62120: A micro power step-down converter.
2. Microchip MIC5205: Adjustable low-voltage LDO.
3. Analog Devices ADP2108: 600 mA, high efficiency, step-down DC-to-DC converter.
4. Maxim Integrated MAX16922: Automotive synchronous buck converter.
Always ensure the specifications like voltage range, current capacity, and package type match your requirements when selecting a replacement.
Shipping
Shipping MethodsWe
offer global shipping services through DHL, FedEx, TNT, UPS, or any other forwarder of your choice.
Shipping Fee Reference (DHL/FedEx):
DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.
FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.
UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.
TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.
EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.
Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.
Payments
Payment Methods
The Payment term is 100% Prepaid.
Currently, we only accept the below payment methods:
1. PayPal
2. Credit/ Debit Card
3. Wire Transfer
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