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TI LM22671MR-5.0/NOPB product image
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TI LM22671MR-5.0/NOPBRoHS

Manufacturer
TI
MPN
LM22671MR-5.0/NOPB
LCSC Part #
C134026
Packaging
SOIC-8-EP
Customer #
Key Attributes
Efficient Buck Regulator
Datasheetpdf iconTI LM22671MR-5.0/NOPB
In-Stock: 85
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QtyUnit PriceTotal Amount
1+$ 2.9664$ 2.97
10+$ 2.6503$ 26.50
30+$ 2.4882$ 74.65
95+$ 2.271$ 215.75
475+$ 2.1932$ 1041.77
1,045+$ 2.1608$ 2258.04
Standard Packaging95/Full Tube
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators
ManufacturerTI
PackagingSOIC-8-EP
Operating Temperature-40℃~+125℃@(TJ)
Frequency - Switching500kHz
FunctionStep-down type
Number of Outputs1
FeaturesAdjustable soft-start;Frequency synchronization
Output TypeFixed
TopologyBuck
Operating Voltage4.5V~42V
Switch tube (built-in/external)Built-in
Output Voltage5V
Output Current500mA
Quiescent Current3.4mA
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging95
Sales UnitPiece

Introduction

AI Translation

The LM22671 switching regulator uses minimal external components to provide all the functions needed to implement a high-efficiency, high-voltage step-down regulator. This regulator is easy to use and integrates a 42V N-channel MOSFET switch capable of delivering up to 500 mA of load current. It features excellent line and load regulation along with high efficiency (>90%). Voltage-mode control provides a short minimum on-time, enabling the widest input-to-output voltage ratio. Internal loop compensation eliminates the tedious task of calculating loop compensation components. The regulator is available in both fixed 5V output and adjustable output voltage options. The default switching frequency is set at 500 kHz, allowing the use of small external components while providing good transient response. The frequency can also be adjusted over a range of 200 kHz to 1 MHz using a single external resistor. The internal oscillator can be synchronized to a system clock or to the oscillator of another regulator. A precision enable input allows optimized regulator control and system power sequencing. In shutdown mode, the regulator draws only 25 μA (typical) of quiescent current. Adjustable soft-start is available by selecting a single external capacitor. The LM22671 also incorporates thermal shutdown and current limiting to protect the device against accidental overload.

Features

AI Translation
  • Wide input voltage range: 4.5V to 42V
  • Internal compensation voltage mode control
  • Stable with low-ESR ceramic capacitors
  • 200mΩ N-channel MOSFET
  • Output voltage options:
    • ADJ (minimum output voltage 1.285V)
    • 5.0 (fixed output voltage 5V)
  • ±1.5% feedback reference accuracy
  • Default switching frequency 500kHz
  • Adjustable switching frequency and synchronization
  • Operating junction temperature range: -40°C to 125°C
  • Precision enable pin
  • Integrated bootstrap diode
  • Adjustable soft-start
  • Full WEBE NCH enabled
  • LM22671-Q1 is an automotive-grade product compliant with AEC-Q100 Grade 1 (operating junction temperature range -40°C to +125°C)
  • Small Outline (SO) PowerPAD (exposed pad)

Applications

AI Translation
  • Industrial control
  • Telecom and datacom systems
  • Embedded systems
  • Conversion from 24V, 12V, and 5V standard input power rails