Download the S-8521 datasheet PDF.
This datasheet also covers the S-8520 variant, as both devices belong to the same switching regulator controller family and are provided as variant models within a single manufacturer datasheet.
Full PDF Text Transcription for S-8521 (Reference)
Note: Below is a high-fidelity text extraction (approx. 800 characters) for
S-8521. For precise diagrams, and layout, please refer to the original PDF.
CHABLE SWITCHING REGULATOR CONTROLLER Rev.9.0_02 The S-8520/8521 Series is a CMOS step-down switching regulator-controller with PWM control (S-8520 Series) and PWM / PFM switching control (S-8521 Series). The S-8520/8521 Series has a reference voltage source, an oscillation circuit, an error amplifier, and other components. The S-8520 Series provides low-ripple power, high efficiency, and excellent transient characteristics due to a PWM control circuit capable of varying the duty ratio linearly from 0% up to 100%. The S-8520/8521 Series also has a soft-start circuit that prevents overshoot at startup. The S-8521 Series wor
S-8521 Datasheet
