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Details for Texas Instruments


SIMPLE SWITCHER® 4.5V to 42V, 1A Step-Down Voltage Regulator with Adjustable Frequency
Buy Directly from Texas Instruments (4175 in Stock)
$1.9200 per unit
Series Information for LM22672MR-5.0/NOPB - Texas Instruments


  • feature
    200 mu2126 N-Channel MOSFET
  • feature
    500 kHz Default Switching Frequency
  • feature
    Adjustable Soft-Start
  • feature
    Adjustable Switching Frequency and Synchronization
  • feature
    Fully WEBENCHu00ae Enabled
  • feature
    Integrated Boot-Strap Diode
  • feature
    Internally Compensated Voltage Mode Control
  • feature
    LM22672-Q1 is an Automotive Grade Product that is AEC-Q100 Grade 1 Qualified (u201340u00b0C to +125u00b0C Junction Temperature)
  • feature
    Output Voltage Options: -ADJ (Outputs as Low as 1.285 V) -5.0 (Output Fixed to 5 V)
  • feature
    Precision Enable Input
  • feature
    SO PowerPAD (Exposed Pad)
  • feature
    Stable with Low ESR Ceramic Capacitors
  • feature
    Wide Input Voltage Range: 4.5 V to 42 V
  • feature
    u00b11.5% Feedback Reference Accuracy
  • feature
    u201340u00b0C to 125u00b0C Junction Temperature Range


The LM22672 switching regulator provides all of the functions necessary to implement an efficient high voltage step-down (buck) regulator using a minimum of external components. This easy to use regulator incorporates a 42 V N-channel MOSFET switch capable of providing up to 1 A of load current. Excellent line and load regulation along with high efficiency (> 90%) are featured. Voltage mode control offers short minimum on-time, allowing the widest ratio between input and output voltages. Internal loop compensation means that the user is free from the tedious task of calculating the loop compensation components. Fixed 5 V output and adjustable output voltage options are available. The default switching frequency is set at 500 kHz allowing for small external components and good transient response. In addition, the frequency can be adjusted over a range of 200 kHz to 1 MHz with 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 simplification of regulator control and system power sequencing. In shutdown mode the regulator draws only 25 µA (typ). An adjustable soft-start feature is provided through the selection of a single external capacitor. The LM22672 also has built in thermal shutdown, and current limiting to protect against accidental overloads. The LM22672 is a member of Texas Instruments' SIMPLE SWITCHER® family. The SIMPLE SWITCHER® concept provides for an easy to use complete design using a minimum number of external components and the TI WEBENCH® design tool. TI's WEBENCH® tool includes features such as external component calculation, electrical simulation, thermal simulation, and Build-It boards for easy design-in.


Buck (Step Down)
Input Voltage Min:
Input Voltage Max:
DC / DC Converter IC Case:
No. of Pins:
Output Current:
Output Voltage Nom.:
Switching Frequency:
Operating Temperature Max:
Product Range:
Automotive Qualification Standard:
RoHS Phthalates Compliant:
No SVHC (27-Jun-2018)
No. of Outputs:
Operating Temperature Min:
Output Voltage:
Primary Input Voltage:

Alternate Descriptions

Avnet America

Conv DC-DC Single Step Down 4.5V to 42V 8-Pin PSOP EP Rail

Avnet America product

Avnet Europe

Conv DC-DC Single Step Down 4.5V to 42V 8-Pin PSOP EP Rail

Avnet Europe product

Texas Instruments

SIMPLE SWITCHER® 4.5V to 42V, 1A Step-Down Voltage Regulator with Adjustable Frequency

Texas Instruments product


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