S-8541 Overview
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 pensation circuit, PWM control circuit, current...
S-8541 Key Features
- Oscillation frequency
- Output voltage
- Output voltage precision
- Feed back type for output voltage (FB)
- External ponents
- Built-in PWM/PFM switchover control circuit (S-8541 series)
- Current limit circuit
- Soft-start
- Shutdown function
- Small package
S-8541 Applications
- Power supplies for PDAs, electric organizers, and portable devices
- Power supplies for audio equipment such as portable CD players and headphone stereos
- Main or sub Power supplies for notebook puters and peripheral equipment
