LM22670MRE-ADJ/NOPB

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Details for Texas Instruments

LM22670MRE-ADJ/NOPB

4.5V to 42V, 3A SIMPLE SWITCHER® buck converter with frequency synchronization
Buy Directly from Texas Instruments (4125 in Stock)
$2.1300 per unit
Series Information for LM22670MRE-ADJ/NOPB - Texas Instruments

Features

  • feature
    100-mu2126 N-channel MOSFET SO PowerPADu2122-8 Package
  • feature
    120-mu2126 N-channel MOSFET PFM Package
  • feature
    500-kHz Default Switching Frequency
  • feature
    Adjustable Switching Frequency and Synchronization
  • feature
    Fully WEBENCHu00ae Enabled
  • feature
    Integrated Boot-Strap Diode
  • feature
    Integrated Soft-Start
  • feature
    Internally Compensated Voltage Mode Control
  • feature
    LM22670-Q1 is an Automotive-Grade Product
  • feature
    Output Voltage Options: -ADJ (Outputs as Low as 1.285 V) -5.0 (Output Fixed to 5 V)
  • feature
    Precision Enable Pin
  • 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 Operating Junction Temperature Range

Description

IC SW REG FULL REEL
The LM22670 switching regulator provides all of the functions necessary to implement an efficient highvoltage step-down (buck) regulator using a minimum of external components. This easy-to-use regulator incorporates a 42-V N-channel MOSFET switch that can provide up to 3 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, thus 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 (typical). Built in soft-start (500 µs, typical) saves external components. The LM22670 device also has built-in thermal shutdown, and current limiting to protect against accidental overloads. The LM22670 device is a member of Texas Instruments' SIMPLE SWITCHER® family. The SIMPLE SWITCHER® concept provides for an easyto-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.

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:
3A
Output Voltage Min:
1.285V
Output Voltage Max:
37V
Switching Frequency:
1MHz
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:
22670
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)

Alternate Descriptions

Avnet America

Conv DC-DC Single Step Down 4.5V to 42V 8-Pin PSOP EP T/R

Avnet America product

Avnet Europe

Conv DC-DC Single Step Down 4.5V to 42V 8-Pin PSOP EP T/R

Avnet Europe product

Texas Instruments

4.5V to 42V, 3A SIMPLE SWITCHER® buck converter with frequency synchronization

Texas Instruments product