LM2672M-3.3/NOPB

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Texas Instruments

SIMPLE SWITCHER® 6.5V TO 40V, 1A LOW COMPONENT COUNT STEP-DOWN REGULATOR

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LM2672M-3.3/NOPB

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Texas Instruments

SIMPLE SWITCHER® 6.5V TO 40V, 1A LOW COMPONENT COUNT STEP-DOWN REGULATOR

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Description Specifications Series Pricing CAD Documents

Description

General part information

LM2672 Series

The LM2672 series of regulators are monolithic integrated DC-DC converter built with a LMDMOS process. These regulators provide all the active functions for a step-down (buck) switching regulator, capable of driving a 1-A 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, fixed frequency oscillator, external shutdown, soft-start, and frequency synchronization.

The LM2672 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 its 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	LM2672M-3.3/NOPB

Current - Output	1 A
Frequency - Switching	260 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Type	Fixed
Package Length	0.154 in
Package Name	8-SOIC
Package Width	3.9 mm
Synchronous Rectifier	No
Topology	Buck
Voltage - Input (Max)	40 V
Voltage - Input (Min)	6.5 V
Voltage - Output (Min/Fixed)	3.3 V

LM2672 Series

Part	Voltage - Input (Min)	Number of Outputs	Package Length	Package Name	Package Width	Function	Current - Output	Synchronous Rectifier	Voltage - Input (Max)	Topology	Voltage - Output (Max)	Operating Temperature (Max)	Operating Temperature (Min)	Output Configuration	Mounting Type	Output Type	Voltage - Output (Min/Fixed)	Frequency - Switching	Package / Case
Texas Instruments LM2672N-ADJ/NOPB	6.5 V	1	0.3 in	8-DIP 8-PDIP	7.62 mm	Step-Down	1 A	No	40 V	Buck	37 V	125 °C	-40 °C	Positive	Through Hole	Adjustable	1.21 V	260 kHz
Texas Instruments LM2672MX-12	6.5 V	1	0.154 in	8-SOIC	3.9 mm	Step-Down	1 A	No	40 V	Buck		125 °C	-40 °C	Positive	Surface Mount	Fixed	12 V	260 kHz
Texas Instruments LM2672LD-ADJ	6.5 V	1	5 mm	16-WSON	5 mm	Step-Down	1 A	No	40 V	Buck	37 V	125 °C	-40 °C	Positive	Surface Mount	Adjustable	1.21 V	260 kHz	16-WFDFN Exposed Pad
Texas Instruments LM2672N-12	6.5 V	1	0.3 in	8-DIP 8-PDIP	7.62 mm	Step-Down	1 A	No	40 V	Buck		125 °C	-40 °C	Positive	Through Hole	Fixed	12 V	260 kHz
Texas Instruments LM2672MX-ADJ	6.5 V	1	0.154 in	8-SOIC	3.9 mm	Step-Down	1 A	No	40 V	Buck	37 V	125 °C	-40 °C	Positive	Surface Mount	Adjustable	1.21 V	260 kHz
Texas Instruments LM2672MX-ADJ/NOPB	6.5 V	1	0.154 in	8-SOIC	3.9 mm	Step-Down	1 A	No	40 V	Buck	37 V	125 °C	-40 °C	Positive	Surface Mount	Adjustable	1.21 V	260 kHz
Texas Instruments LM2672MX-5.0	6.5 V	1	0.154 in	8-SOIC	3.9 mm	Step-Down	1 A	No	40 V	Buck		125 °C	-40 °C	Positive	Surface Mount	Fixed	5 V	260 kHz
Texas Instruments LM2672M-5.0	6.5 V	1	0.154 in	8-SOIC	3.9 mm	Step-Down	1 A	No	40 V	Buck		125 °C	-40 °C	Positive	Surface Mount	Fixed	5 V	260 kHz
Texas Instruments LM2672M-5.0/NOPB	6.5 V	1	0.154 in	8-SOIC	3.9 mm	Step-Down	1 A	No	40 V	Buck		125 °C	-40 °C	Positive	Surface Mount	Fixed	5 V	260 kHz
Texas Instruments LM2672LD-3.3/NOPB	6.5 V	1	5 mm	16-WSON	5 mm	Step-Down	1 A	No	40 V	Buck		125 °C	-40 °C	Positive	Surface Mount	Fixed	3.3 V	260 kHz	16-WFDFN Exposed Pad