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S-8541

ABLIC
Part Number S-8541
Manufacturer ABLIC
Description SWITCHING REGULATOR CONTROLLER
Published Mar 19, 2018
Detailed Description S-8540/8541 Series www.ablicinc.com © ABLIC Inc., 2000-2010 STEP-DOWN, 600 kHz PWM CONTROL or PWM/PFM SWITCHABLE SWITC...
Datasheet PDF File S-8541 PDF File

S-8541
S-8541

Overview
S-8540/8541 Series www.
ablicinc.
com © ABLIC Inc.
, 2000-2010 STEP-DOWN, 600 kHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER Rev.
4.
0_02 The S-8540/8541 Series is a family of CMOS step-down switching regulator controllers with PWM control (S8540 Series) and PWM/PFM switchover control (S-8541 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, and excellent transient characteristics which come from the PMW control circuit capable of varying the duty ratio linearly from 0 to 100%, the optimized error amplifier, and the phase compensation circuit.
The S-8541 Series operates under PWM control when the duty ratio is 2...


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