LM2672 Datasheet PDF

●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.

● Efficiency up to 96%

● Available in 8-Pin SOIC and PDIP Packages

● Requires only 5 External Components

● 3.3-V, 5-V, 12-V, and Adjustable Output Versions

● Adjustable Version Output Voltage Range: 1.21 V

●to 37 V

● ±1.5% Maximum Output Voltage Tolerance Over

●Line and Load Conditions

● Specified 1-A Output Load Current

● Wide Input Voltage Range: 8 V to 40 V

● 260-kHz Fixed Frequency Internal Oscillator

● TTL Shutdown Capability, Low Power Standby

●Mode

● Soft-Start and Frequency Synchronization

● Thermal Shutdown and Current Limit Protection