The S-83M355/83M356 Series is a CMOS step-up switching regulator which consists of a reference voltage source, an oscillation circuit, an error amplifier, a phase compensation circuit, a PWM control circuit (S-83M355 Series) and a PWM / PFM switching control circuit (S-83M356 Series). With a built-in low on-state resistance power MOS FET, this product is ideally suited for applications requiring high efficiency and a high output current with few external components. The S-83M355 Series employs a PWM control circuit whose duty ratio can be varied linearly, and features a PWM / PFM switching control circuit that optimizes efficiency during light loads.

Features
• Built-in power MOS FET
: 75 mΩ (typ.)
: 20 V withstanding voltage
• Input voltage : 1.5 V to 6.5 V
• Output voltage : 2.0 V to 15 V
: can be changed by an external resistor
• Oscillation frequency : 600 kHz
• Efficiency : 85% (typ.)
• Soft start function
• Packages
PLP-8B (Package code: XB008-A)

Applications
• Power supplies for portable equipment such as digital cameras, electronic notebooks, and PDAs
• Power supplies for audio equipment such as portable CD / MD players

Please refer to sii-ic.com