LM3671TL-1.2In StockTexas Instruments
LM3671TL-1.2 is a 1.2V output DC-DC step-down switching regulator IC with 2.7V–5.5V input range, 200mA output current, and pulse width modulation control. From $0.43, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 5
- Lifecycle
- OBSOLETE
- Datasheet
- LM3671TL-1.2 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.4269(MOQ 1000)
- Temp Range
- -30.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 1.2V fixed output voltage with tight regulation accuracy
- Wide input voltage range: 2.7V to 5.5V, suitable for Li-ion battery applications
- Low quiescent current with Pulse Frequency Modulation (PFM) for high light-load efficiency
- Compact 5-bump micro SMD package for space-constrained designs
- Voltage-mode PWM control for stable, low-noise operation
Applications
The LM3671TL-1.2 is ideal for portable consumer electronics such as smartphones, tablets, and wearable devices that require efficient 1.2V power rails from a single-cell Li-ion battery. It is also well-suited for IoT sensor nodes, wireless modules, and handheld instruments where board space is at a premium and battery life is critical.
Specifications
| Pbfree Code | No |
| YTEOL | 0 |
| Additional Feature | PULSE FREQUENCY MODULATION TECHNIQUE IS ALSO POSSIBLE |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 2.7V |
| Input Voltage-Nom | 3.6V |
| JESD-30 Code | R-PBGA-B5 |
| JESD-609 Code | e0 |
| Number of Functions | 1 |
| Output Current-Max | 1.15A |
| Output Voltage-Nom | 1.2V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | BGA5,2X3,20 |
| Package Shape | RECTANGULAR |
| Package Style | GRID ARRAY, VERY THIN PROFILE, FINE PITCH |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 2600kHz |
| Temperature Grade | OTHER |
| Terminal Finish | TIN LEAD |
| Terminal Form | BALL |
| Terminal Pitch | 0.5mm |
| Terminal Position | BOTTOM |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM3671TL-1.2:
Switching Regulator, Voltage-mode, 0.6A, 2600kHz Switching Freq-Max, PBGA5
Frequently Asked Questions
What is the input voltage range of the LM3671TL-1.2?
The LM3671TL-1.2 accepts an input voltage from 2.7V to 5.5V, with a nominal input of 3.6V. This range makes it compatible with single-cell Li-ion/LiPo batteries and standard 3.3V or 5V supply rails.
What output voltage and current does the LM3671TL-1.2 provide?
The LM3671TL-1.2 provides a fixed 1.2V output voltage and can supply up to 200mA of output current. It uses PWM control for stable regulation and supports PFM mode for improved efficiency at light loads.
What package does the LM3671TL-1.2 use, and how small is it?
The LM3671TL-1.2 comes in a 5-bump Micro SMD (R-PBGA-B5) package, one of the smallest available for DC-DC converters. This ultra-compact footprint is ideal for space-constrained PCB designs in wearables and portable devices.
Can the LM3671TL-1.2 be used in battery-powered IoT applications?
Yes. The LM3671TL-1.2 is an excellent choice for IoT and wireless sensor applications. Its low quiescent current, PFM light-load mode, and 2.7V minimum input voltage allow efficient operation directly from a Li-ion battery, extending battery life significantly.
Related Guides
Ultra Low Power Microcontroller Comparison 2026: STM32L4 vs MSP430 vs MSP432 vs CC2640
Engineer-grade 2026 comparison of ultra-low-power MCUs — STM32L476, MSP430A139, MSP432P401R, CC2640F128 across standby current, active current, and battery life.
May 5, 2026
BOM Cost Reduction: 7 Strategies for Electronics Manufacturers in 2026
Practical 2026 BOM optimization playbook — 7 proven strategies, ranked by payback time and risk. With realistic per-unit savings and verification steps.
May 5, 2026
STM32F072C8T6 Pin-Compatible Alternatives 2026: Cheaper Drop-In Options Compared
Engineer-grade compatibility analysis for STM32F072C8T6 alternatives in 2026 — pin compatibility, firmware portability, cost and lead time for each option.
May 5, 2026
Top Microcontrollers for IoT 2026: ESP32 vs Arduino vs STM32 vs RPi Pico
The five IoT MCU platforms compared on 2026 pricing, lead time, and use case — ESP32-S3, Arduino, STM32F0, RP2040, TI CC2640/CC1352P.
May 5, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1000+ | $0.5715 | $571.50 |
| 10000+ | $0.5096 | $5096.00 |
| 100000+ | $0.4269 | $42690.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”