LM2677S-5.0/NOPB

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Details for Texas Instruments

LM2677S-5.0/NOPB

SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator with Sync
Buy Directly from Texas Instruments (6150 in Stock)
$2.7000 per unit
Series Information for LM2677S-5.0/NOPB - Texas Instruments

Features

  • feature
    100-mu03a9 DMOS Output Switch
  • feature
    260-kHz Fixed Frequency Internal Oscillator
  • feature
    3.3-V, 5-V, and 12-V Fixed Output and Adjustable (1.2 V to 37 V) Versions
  • feature
    50-u03bcA Standby Current When Switched OFF
  • feature
    Efficiency up to 92%
  • feature
    External Sync Clock Capability (280 kHz to 400 kHz)
  • feature
    Simple and Easy to Design Using Off-the-Shelf External Components
  • feature
    Wide Input Voltage Range: 8 V to 40 V
  • feature
    u00b12% Maximum Output Tolerance Over Full Line and Load Conditions
  • feature
    u221240u00b0C to 125u00b0C Operating Junction Temperature

Description

DC/DC CONV BUCK 260KHZ TO-263-7
The LM2677 series of regulators are monolithic integrated circuits which provide all of the active functions for a step-down (buck) switching regulator capable of driving up to 5-A loads with excellent line and load regulation characteristics. High efficiency (>90%) is obtained through the use of a low onresistance DMOS power switch. The series consists of fixed output voltages of 3.3-V, 5-V, and 12-V and an adjustable output version. The SIMPLE SWITCHER® concept provides for a complete design using a minimum number of external components. The switching clock frequency can be provided by an internal fixed frequency oscillator (260 kHz) or from an externally provided clock in the range of 280 kHz to 400 kHz, which allows the use of physically smaller-sized components. A family of standard inductors for use with the LM2677 are available from several manufacturers to greatly simplify the design process. The external Sync clock provides direct and precise control of the output ripple frequency for consistent filtering or frequency spectrum positioning. The LM2677 series also has built-in thermal shutdown, current-limiting, and an ON/OFF control input that can power down the regulator to a low 50-μA quiescent-current standby condition. The output voltage is ensured to a ±2% tolerance.

Specifications

Topology:
Buck (Step Down)
Input Voltage Min:
8V
Input Voltage Max:
40V
DC / DC Converter IC Case:
TO-263
No. of Pins:
7Pins
Output Current:
5A
Output Voltage Nom.:
5V
Switching Frequency:
260kHz
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)

Alternate Descriptions

Avnet America

Conv DC-DC Single Step Down 8V to 40V 8-Pin(7+Tab) TO-263 Rail

Avnet America product

Avnet Europe

Conv DC-DC Single Step Down 8V to 40V 8-Pin(7+Tab) TO-263 Rail

Avnet Europe product

Texas Instruments

SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator with Sync

Texas Instruments product