S-8533 - SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER

Description

Seiko Instruments Inc.

Absolute Maximum Ratings Table 2 Parameter VIN pin voltage VOUT pin voltage ON/OFF pin voltage CSS pin voltage NDRV pin voltage PDRV pin voltage NDRV

Features

s.
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 (C.

Seiko Instruments

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Datasheet Details

Part number	S-8533
Manufacturer	Seiko Instruments
File Size	465.68 KB
Description	SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER
Datasheet	S-8533 Datasheet
Additional preview pages of the S-8533 datasheet.

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Full PDF Text Transcription

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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.

Published: Aug 28, 2009 |