LM2674N-12/NOPB

Obsolete

Texas Instruments

IC REG BUCK 12V 500MA 8DIP

LM2674N-12/NOPB

Obsolete

Texas Instruments

IC REG BUCK 12V 500MA 8DIP

Description Specifications Series Pricing CAD Documents

Description

General part information

LM2674 Series

The LM2674 series of regulators are monolithic integrated circuits built with a LMDMOS process. These regulators provide all the active functions for a step-down (buck) switching regulator, capable of driving a 500-mA load current with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5 V, 12 V, and an adjustable output version.

Requiring a minimum number of external components, these regulators are simple to use and include patented internal frequency compensation and a fixed frequency oscillator.

The LM2674 series operates at a switching frequency of 260 kHz, thus allowing smaller sized filter components than what is required with lower frequency switching regulators. Because of very high efficiency (> 90%), the copper traces on the printed-circuit board are the only heat sinking required.

Technical Specifications

Parameters and characteristics for this part

Specification	LM2674N-12/NOPB

Current - Output	500 mA
Frequency - Switching	260 kHz
Function	Step-Down
Mounting Type	Through Hole
Number of Outputs	1
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Type	Fixed
Package Length	0.3 in
Package Name	8-PDIP, 8-DIP
Package Width	7.62 mm
Synchronous Rectifier	No
Topology	Buck
Voltage - Input (Max)	40 V
Voltage - Input (Min)	6.5 V
Voltage - Output (Min/Fixed)	12 V

LM2674 Series

SIMPLE SWITCHER® 40V, 500mA Low Component Count Step-Down Regulator

Part	Synchronous Rectifier	Package Length	Package Name	Package Width	Output Type	Topology	Voltage - Input (Min)	Operating Temperature (Max)	Operating Temperature (Min)	Frequency - Switching	Number of Outputs	Output Configuration	Current - Output	Function	Voltage - Input (Max)	Mounting Type	Voltage - Output (Min/Fixed)	Voltage - Output (Max)	Package / Case
Texas Instruments LM2674M-3.3	No	0.154 in	8-SOIC	3.9 mm	Fixed	Buck	6.5 V	125 °C	-40 °C	260 kHz	1	Positive	500 mA	Step-Down	40 V	Surface Mount	3.3 V
Texas Instruments LM2674MX-12/NOPB	No	0.154 in	8-SOIC	3.9 mm	Fixed	Buck	6.5 V	125 °C	-40 °C	260 kHz	1	Positive	500 mA	Step-Down	40 V	Surface Mount	12 V
Texas Instruments LM2674MX-3.3	No	0.154 in	8-SOIC	3.9 mm	Fixed	Buck	6.5 V	125 °C	-40 °C	260 kHz	1	Positive	500 mA	Step-Down	40 V	Surface Mount	3.3 V
Texas Instruments LM2674LD-ADJ	No	5 mm	16-WSON	5 mm	Adjustable	Buck	6.5 V	125 °C	-40 °C	260 kHz	1	Positive	500 mA	Step-Down	40 V	Surface Mount	1.2 V	37 V	16-WFDFN Exposed Pad
Texas Instruments LM2674LD-ADJ/NOPB	No	5 mm	16-WSON	5 mm	Adjustable	Buck	6.5 V	125 °C	-40 °C	260 kHz	1	Positive	500 mA	Step-Down	40 V	Surface Mount	1.2 V	37 V	16-WFDFN Exposed Pad
Texas Instruments LM2674N-3.3/NOPB	No	0.3 in	8-DIP 8-PDIP	7.62 mm	Fixed	Buck	6.5 V	125 °C	-40 °C	260 kHz	1	Positive	500 mA	Step-Down	40 V	Through Hole	3.3 V
Texas Instruments LM2674M-12	No	0.154 in	8-SOIC	3.9 mm	Fixed	Buck	6.5 V	125 °C	-40 °C	260 kHz	1	Positive	500 mA	Step-Down	40 V	Surface Mount	12 V
Texas Instruments LM2674M-ADJ/NOPB	No	0.154 in	8-SOIC	3.9 mm	Adjustable	Buck	6.5 V	125 °C	-40 °C	260 kHz	1	Positive	500 mA	Step-Down	40 V	Surface Mount	1.2 V	37 V
Texas Instruments LM2674N-12/NOPB	No	0.3 in	8-DIP 8-PDIP	7.62 mm	Fixed	Buck	6.5 V	125 °C	-40 °C	260 kHz	1	Positive	500 mA	Step-Down	40 V	Through Hole	12 V
Texas Instruments LM2674M-5.0	No	0.154 in	8-SOIC	3.9 mm	Fixed	Buck	6.5 V	125 °C	-40 °C	260 kHz	1	Positive	500 mA	Step-Down	40 V	Surface Mount	5 V

Pricing

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CAD

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