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STEP-DOWN, 600 kHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING
REGULATOR CONTROLLER
S-8540/8541 Series
The S-8540/8541 Series is a family of CMOS stepdown switching
regulator controllers with PWM control (S-8540 Series) and PWM/PFM switchover control (S8541 Series).
These devices consist of a reference voltage source, oscillation circuit, an error amplifier, phase compensation circuit, PWM control circuit, current limit circuit.
A high efficiency and large current switching
regulator is realized with the help of small external components due to the high oscillation frequency, 300 kHz and 600 kHz.
The S-8540 Series provides low-ripple voltage, high efficiency...