LM22674MRE-ADJ/NOPB Part Information

Details for LM22674MRE-ADJ/NOPB by Texas Instruments

Electronic & Electrical Components > Semiconductors - ICs > Power Management

Part Description

The LM22674 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 500 mA 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. A switching frequency of 500 kHz allows for small external components and good transient response. A precision enable input allows simplification of regulator control and system power sequencing. In shutdown mode the regulator draws only 25 µA (typ). Built in soft-start (500 µs, typ) saves external components. The LM22674 also has built in thermal shutdown, and current limiting to protect against accidental overloads. The LM22674 device 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.

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Part Features

  • 200 mu2126 N-Channel MOSFET
  • Fully WEBENCHu00ae Enabled
  • Integrated Boot-Strap Diode
  • Integrated Soft-Start
  • Internally Compensated Voltage Mode Control
  • LM22674-Q1 is an Automotive Grade Product that is AEC-Q100 Grade 1 Qualified (u201340u00b0C to +125u00b0C Operating Junction Temperature)
  • Output Voltage Options: -ADJ (Outputs as Low as 1.285 V) -5.0 (Output Fixed to 5 V)
  • Precision Enable Pin
  • SO PowerPAD (Exposed Pad)
  • Stable with Low ESR Ceramic Capacitors
  • Switching Frequency of 500 kHz
  • Wide Input Voltage Range: 4.5 V to 42 V
  • u00b11.5% Feedback Reference Accuracy
  • u201340u00b0C to 125u00b0C Operating Junction Temperature Range

Part Specifications

Topology Buck (Step Down)
Input Voltage Min 4.5V
Input Voltage Max 42V
No. of Outputs 1Outputs
DC / DC Converter IC Case SOIC
No. of Pins 8Pins
Output Current 500mA
Output Voltage Min 1.285V
Output Voltage Max 37V
Switching Frequency 500kHz
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 3 - 168 hours
SVHC No SVHC (27-Jun-2018)
Adjustable Output Voltage Min 1.285V
Base Number 22674
Frequency 500kHz
Operating Temperature Min -40°C
Operating Temperature Range -40°C to +125°C
Primary Input Voltage 42V
Supply Voltage Min 4.7V
Termination Type Surface Mount Device
Voltage Regulator Type Step Down (Buck)
RoHS Compliant

Alternative Part Descriptions

  • SIMPLE SWITCHER 0.5A,LM22674MRE-ADJ | RS Components
  • STEP-DOWN REGULATOR, SOP-8; Topology:Buck (Step Down); Input Voltage Min:4.5V; Input Voltage Max:42V; No. of Outputs:1Outputs; DC / DC Converter IC Case:SOIC; No. of Pins:8Pins; Output Current:500mA; Output Voltage Min:1.285V RoHS Compliant: Yes | Newark Electronics
  • 4.5V to 42V, 500mA SIMPLE SWITCHER® buck converter with precision enable | Texas Instruments

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