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Details for LM2677S-3.3/NOPB by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management
LM2677S-3.3/NOPB
Buy Directly from Texas Instruments (4755 in stock) $2.7000
DC/DC CONV BUCK 260KHZ TO-263-7
LM2677S-3.3/NOPB image

LM2677S-3.3/NOPB by Texas Instruments

DC/DC CONV BUCK 260KHZ TO-263-7
Features
100-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%
External Sync Clock Capability (280 kHz to 400 kHz)
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
u221240u00b0C to 125u00b0C Operating Junction Temperature
Part Information
LM2677S-3.3/NOPB image
RoHS Compliant
Description
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.:
3.3V
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
Conv DC-DC Single Step Down 8V to 40V 8-Pin(7+Tab) TO-263 Rail Avnet America
Conv DC-DC Single Step Down 8V to 40V 8-Pin(7+Tab) TO-263 Rail Avnet Europe
SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator with Sync Texas Instruments