LM22677TJE-5.0/NOPB

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Details for Texas Instruments

LM22677TJE-5.0/NOPB

SIMPLE SWITCHER® 4.5V to 42V, 5A Step-Down DC/DC Switching Reg. with Frequency Synchronization
Buy Directly from Texas Instruments (4115 in Stock)
$2.8800 per unit
Series Information for LM22677TJE-5.0/NOPB - Texas Instruments

Features

  • feature
    100-mu03a9 N-Channel MOSFET
  • 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
    LM22677-Q1 is an Automotive-Grade Product that is AEC-Q100 Grade 1 Qualified (u201340u00b0C to +125u00b0C Operating Junction Temperature)
  • feature
    NDR (Exposed Pad)
  • feature
    Output Voltage Options: u2013 -ADJ (Outputs as Low as 1.285 V) u2013 -5.0 (Output Fixed to 5 V)
  • feature
    Precision Enable Input
  • 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 STEP-DOWN REGULATOR TO-263-7
The LM22677 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 5 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). The LM22677 also has built-in thermal shutdown, and current limiting to protect against accidental overloads. The LM22677 device is a member of Texas Instruments' SIMPLE SWITCHER® family. The SIMPLE SWITCHER concept provides for an easy-touse 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
DC / DC Converter IC Case:
TO-263
No. of Pins:
7Pins
Output Current:
5A
Output Voltage Nom.:
5V
Switching Frequency:
1MHz
Operating Temperature Max:
125°C
Product Range:
-
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (27-Jun-2018)
Base Number:
22677
Frequency:
500kHz
No. of Outputs:
1Outputs
Operating Temperature Min:
-40°C
Operating Temperature Range:
-40°C to +125°C
Output Voltage:
5V
Primary Input Voltage:
12V
Supply Voltage Max:
42V
Supply Voltage Min:
8V
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 7-Pin Thin TO-263 EP T/R

Avnet America product

Avnet Europe

Conv DC-DC Single Step Down 4.5V to 42V 7-Pin Thin TO-263 EP T/R

Avnet Europe product

Texas Instruments

SIMPLE SWITCHER® 4.5V to 42V, 5A Step-Down DC/DC Switching Reg. with Frequency Synchronization

Texas Instruments product

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