LM3671TLX-1.2/NOPB

$0.57

Description：IC REG BUCK 1.2V 600MA 5DSBGA
Series：-
Mfr：National Semiconductor
Package：Bulk

SKU:8895430bd8d7 Category: Voltage Regulators - DC DC Switching Regulators Brand: National Semiconductor

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Product introduction

LM3671TLX-1.2/NOPB is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists National Semiconductor. Its product description is IC REG BUCK 1.2V 600MA 5DSBGA. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM3671TLX-1.2/NOPB

Description：IC REG BUCK 1.2V 600MA 5DSBGA
Series：-
Mfr：National Semiconductor
Package：Bulk
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)：1.2V
Voltage - Output (Max)：-
Current - Output：600mA
Frequency - Switching：2MHz
Synchronous Rectifier：Yes
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：5-WFBGA, DSBGA
Supplier Device Package：5-DSBGA (1.5x1.2)
Grade：-
Qualification：-

Voltage Regulators - DC DC Switching Regulators datasheet and documents for LM3671TLX-1.2/NOPB

LM3671TLX-1.2/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM3671TLX-1.2/NOPB is a synchronous step-down DC-DC converter manufactured by Texas Instruments, originally part of the National Semiconductor portfolio. It operates with an input voltage range of 2.7V to 5.5V and provides a fixed output voltage of 1.2V at up to 600mA load current. The device features a typical switching frequency of 2MHz, allowing for compact external component sizing. It utilizes a DSBGA-5 package and supports an operating temperature range from -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrates synchronous rectification for high efficiency across the load range
Automatically transitions between PWM and PFM modes to optimize light-load performance
Includes internal compensation and protection circuits for simplified design

Voltage Regulators - DC DC Switching Regulators Applications

Portable systems powered by single-cell lithium-ion batteries
Low-voltage digital circuit power supplies
Battery-operated consumer electronics

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer designation as Texas Instruments, which acquired National Semiconductor. Confirm the specific suffix 'TLX' indicates tape and reel packaging. Ensure the 'NOPB' suffix confirms lead-free and RoHS compliance. Cross-reference the fixed 1.2V output requirement against the available pinout options in the official datasheet.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 1.2V output is required within a 2.7V to 5.5V input window. The 600mA current limit suits moderate load applications. Consider the DSBGA-5 package size constraints during PCB layout. Verify that the 2MHz switching frequency aligns with EMI requirements and inductor availability.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM3671 family of optimized buck converters designed for portable applications. It replaces older linear regulators or asynchronous switchers where efficiency and board space are critical. The transition from National Semiconductor to Texas Instruments maintains the functional specifications while updating manufacturing standards.