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THE I NFINITE POWER OF INNOVATION
L I N D O C #: 1825
SG1825C/SG2825C/SG3825C
HIGH-SPEED CURRENT-MODE PWM NOT RECOMMENDED FOR NEW DESIGNS
DESCRIPTION
The SG1825C is a high-performance pulse width modulator optimized for high frequency current-mode power supplies. Included in the controller are a precision voltage reference, micropower start-up circuitry, softstart, high-frequency oscillator, wideband error amplifier, fast currentlimit comparator, full double-pulse suppression logic, and dual totempole output drivers. Innovative circuit design and an advanced linear Schottky process result in very short propagation delays through the
current limit comparator, logic, and output drivers. This device can be used to implement either currentmode or voltage-mode switching power supplies.
SG3825C Datasheet
