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TI LM3671MFX-1.8/NOPB product image
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TI LM3671MFX-1.8/NOPBRoHS

Manufacturer
TI
MPN
LM3671MFX-1.8/NOPB
LCSC Part #
C477977
Packaging
SOT-23-5
Customer #
Key Attributes
2-MHz, 600-mA Step-Down DC-DC Converter
Datasheetpdf iconTI LM3671MFX-1.8/NOPB
In-Stock: 105
105 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 0.8062$ 0.81
10+$ 0.7869$ 7.87
30+$ 0.774$ 23.22
100+$ 0.7594$ 75.94
Standard Packaging3000/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators
ManufacturerTI
PackagingSOT-23-5
Operating Temperature-40℃~+85℃@(TA)
Frequency - Switching2MHz
FunctionStep-down type
Number of Outputs1
FeaturesLight load efficient mode;Overcurrent Protection
Output TypeFixed
TopologyBuck
Operating Voltage2.7V~5.5V
Switch tube (built-in/external)Built-in
Output Voltage1.8V
Output Current600mA
Quiescent Current16uA
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging3000
Sales UnitPiece

Introduction

AI Translation

The LM3671 step-down DC-DC converter is optimized for powering low voltage circuits from a single Li-Ion cell battery and input voltage rails from 2.7 V to 5.5 V. It provides up to 600-mA load current, over the entire input voltage range. There are several different fixed voltage output options available as well as an adjustable output voltage version range from 1.1 V to 3.3 V.

The device offers superior features and performance for mobile phones and similar portable systems. Automatic intelligent switching between PWM lownoise and PFM low-current mode offers improved system control. During PWM mode, the device operates at a fixed-frequency of 2 MHz (typical). Hysteretic PFM mode extends the battery life by reducing the quiescent current to 16 μA (typical) during light load and standby operation. Internal synchronous rectification provides high efficiency during PWM mode operation. In shutdown mode, the device turns off and reduces battery consumption to 0.01 μA (typical).

A high-switching frequency of 2 MHz (typical) allows use of tiny surface-mount components. Only three external surface-mount components, an inductor, and two ceramic capacitors, are required.

Features

AI Translation
  • LM3671-Q1 is Qualified for Automotive Applications
  • AEC Q100-Qualified With the Following Results Device Temperature Grade 1: -40°C to +125°C Ambient Operating Temperature Range
  • 16-μA Typical Quiescent Current
  • 600-mA Maximum Load Capability
  • 2-MHz PWM Fixed Switching Frequency (Typical)
  • Automatic PFM-PWM Mode Switching
  • Internal Synchronous Rectification for High Efficiency
  • Internal Soft Start
  • 0.01-μA Typical Shutdown Current
  • Operates from a Single Li-Ion Cell Battery
  • Only Three Tiny Surface-Mount External Components Required (One Inductor, Two Ceramic Capacitors)
  • Current Overload and Thermal Shutdown Protection
  • Available in Fixed Output Voltages and Adjustable Version

Applications

AI Translation
  • Mobile Phones
  • PDAs
  • MP3 Players
  • W-LAN
  • Portable Instruments
  • Digital Still Cameras
  • Portable Hard Disk Drives
  • Automotive
  • Portable Medical Equipment
  • Handheld Transaction Terminals
  • Wireless Home-Automation Equipment