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Details for LM2678T-12/NOPB by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management
STEP-DOWN REGULATOR TO-220-7
LM2678T-12/NOPB image

LM2678T-12/NOPB by Texas Instruments

STEP-DOWN REGULATOR TO-220-7
Features
120-mu03a9 DMOS Output Switch
260-kHz Fixed Frequency Internal Oscillator
3.3-V, 5-V, and 12-V Fixed Output and Adjustable (1.2 V to 37 V) Versions
50-u03bcA Standby Current When Switched OFF
Efficiency Up to 92%
Simple and Easy to Design Using Off-the-Shelf External Components
Wide Input Voltage Range: 8 V to 40 V
u00b12% Maximum Output Tolerance Over Full Line and Load Conditions
u221240 to 125u00b0C Operating Junction Temperature
Part Information
LM2678T-12/NOPB image
RoHS Compliant
Description
The LM2678 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. A high fixed frequency oscillator (260 kHz) allows the use of physically smaller sized components. A family of standard inductors for use with the LM2678 are available from several manufacturers to greatly simplify the design process. The LM2678 series also has built-in thermal shutdown, current limiting, and an ON/OFF control input that can power down the regulator to a low 50μA quiescent current standby condition. The output voltage is ensured to a ±2% tolerance. The clock frequency is controlled to within a ±11% tolerance.
Specifications
Topology:
Buck (Step Down)
Input Voltage Min:
8V
Input Voltage Max:
40V
DC / DC Converter IC Case:
TO-220
No. of Pins:
7Pins
Output Current:
5A
Switching Frequency:
260kHz
Product Range:
-
MSL:
-
Alternate Descriptions
Step-down switching regulator,LM2678T-12 RS Components
STEP-DOWN REGULATOR, TO-220-7; Topology:Buck (Step Down); Input Voltage Min:8V; Input Voltage Max:40V; DC / DC Converter IC Case:TO-220; No. of Pins:7Pins; Output Current:5A; Switching Frequency:260kHz; Product Range:-; MSL:- RoHS Compliant: Yes Newark Electronics
Conv DC-DC Single Step Down 8V to 40V 7-Pin(7+Tab) TO-220 Rail Avnet America
PMIC; DC/DC converter; Uin:8÷40V; Uout:12V; TO220-7; buck Transfer Multisort Elektronik
Conv DC-DC Single Step Down 8V to 40V 7-Pin(7+Tab) TO-220 Rail Avnet Europe
Switch. Reg 5A 12V 45Vs TO220-7 Schukat Electronic