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.
|Vin (Min) (V)|
|Vin (Max) (V)|
|Vout (Min) (V)|
|Vout (Max) (V)|
|Iout (Max) (A)|
|Regulated outputs (#)|
|Switching Frequency (Min) (kHz)|
|Switching Frequency (Max) (kHz)|
|Iq (Typ) (mA)|
|Duty cycle (Max) (%)|
|Operating temperature range (C)|
|Package size: mm2:W x L (PKG)|
Over Current Protection
|-40 to 125|
PDIP | 8
SOIC | 8
WSON | 16
See datasheet (PDIP)
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)
See datasheet (WSON)