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S-8533 Datasheet

Part Number S-8533
Manufacturers Seiko Instruments
Logo Seiko Instruments
Description SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER
Datasheet S-8533 DatasheetS-8533 Datasheet (PDF)

Rev.2.3_00 www.DataSheet4U.com STEP-DOWN, SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER S-8533 Series The S-8533 Series is a synchronous PWM control CMOS step-down switching regulator controller that includes a reference voltage source, synchronous circuit, oscillation circuit, error amplifier, phase compensation circuit, and PWM controller. An efficient step-down switching regulator can be realized simply by adding external P-channel and N-channel power MOS FETs, one coil, and three.

  S-8533   S-8533






Part Number S-8533
Manufacturers ABLIC
Logo ABLIC
Description SWITCHING REGULATOR CONTROLLER
Datasheet S-8533 DatasheetS-8533 Datasheet (PDF)

S-8533 Series www.ablicinc.com © ABLIC Inc., 2002-2010 STEP-DOWN, SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER Rev.3.0_02 The S-8533 Series is a synchronous PWM control CMOS step-down switching regulator controller that includes a reference voltage source, synchronous circuit, oscillation circuit, error amplifier, phase compensation circuit, and PWM controller. An efficient step-down switching regulator can be realized simply by adding external P-channel and N-channel power MOS FETs.

  S-8533   S-8533







SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER

Rev.2.3_00 www.DataSheet4U.com STEP-DOWN, SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER S-8533 Series The S-8533 Series is a synchronous PWM control CMOS step-down switching regulator controller that includes a reference voltage source, synchronous circuit, oscillation circuit, error amplifier, phase compensation circuit, and PWM controller. An efficient step-down switching regulator can be realized simply by adding external P-channel and N-channel power MOS FETs, one coil, and three capacitors. Since the oscillation frequency is a high 300 kHz, the S-8533 can be used to configure a high efficiency step-down switching regulator capable of driving high output current using small external parts and a 3 to 10% increase in efficiency is obtained compared to conventional step-down switching regulators. The 8-Pin TSSOP package and high oscillation frequency make the S8533 ideal as the main power supply for portable devices. „ Features • Synchronous rectification system realizing high efficiency (typ. 94%) • Use at maximum duty ratio = 100% and use of a battery up to maximum life is possible by using P-channel and Nchannel power MOS FETs externally. • Oscillation frequency : 300 kHz typ. • Input voltage : 2.7 to 16.0 V • Output voltage : 1.25 V 1.3 to 6.0 V, selectable in 0.1 V steps • Output voltage accuracy : ±2.0% • Soft-start function set by an external capacitor (CSS) • Shutdown function • Small package : 8-Pin TSSOP • Lead-free products „ Applications • • • • Con.


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