LM2675M-12/NOPB

The LM2675 series of regulators are monolithic
integrated DC-DC converter circuits 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
and a fixed frequency oscillator.
The LM2675 series operates at a switching frequency
of 260 kHz, thus allowing smaller-sized filter
components than what would be needed 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 needed.


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    SPECIFICATION

    • Efficiency up to 96%
    • Available in 8-Pin SOIC, PDIP, and 16-Pin WSON
    Package
    • 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
    • Ensured 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
    • Thermal Shutdown and Current Limit Protection