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S-8460 - PWM CONTROL SWITCHING REGULATOR CONTROLLER

Description

1 VIN IC power supply pin 2 VL Power supply pin for boost 1 Shutdown pin 3 ON/OFF “H” : Normal operation (step-up and down) “L” : Halt (no step-up and down) 4 VSS GND pin 2 5 CSS Capacitor connection pin for soft-start time 6 CPRO Capacitor connection pin for setting protection time

Features

  • s.
  • Single-coil, step-up or step-down switching realizes high efficiency.
  • High efficiency is realized by using only N-channel power MOS FET as an external power MOS.
  • Synchronous rectification at step-down operation.
  • Input voltage : 2.2 to 18.0 V.
  • Variable output voltage : Output voltage range 2.5 to 6.0 V.
  • Automatic-recovery overload protection circuit.
  • Oscillation frequency : 300 kHz.
  • Soft-start function set by a.

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Datasheet preview – S-8460

Datasheet Details

Part number S-8460
Manufacturer Seiko Instruments
File Size 605.16 KB
Description PWM CONTROL SWITCHING REGULATOR CONTROLLER
Datasheet download datasheet S-8460 Datasheet
Additional preview pages of the S-8460 datasheet.

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Full PDF Text Transcription

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Rev.2.0_00 STEP-UP OR DOWN, SINGLE-COIL, PWM CONTROL SWITCHING REGULATOR CONTROLLER S-8460 The S-8460 is a PWM control CMOS step-up and step-down switching regulator controller which consists of an automatic-selection control circuit for step-up and step-down, a reference voltage circuit, an oscillation circuit, an error amplifier, a phase compensation circuit, etc. The automatic-selection control circuit for step-up and stepdown in PWM control realizes a high performance step-up and stepdown switching regulator operating on one coil. With an external Nchannel power MOS, the S-8460 is ideal for applications requiring high efficiency and a high current output.
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