S-8540 - (S-8540 / S-8541) 600 kHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER

Product Overview

Seiko Instruments

Datasheet Details

Part number	S-8540
Manufacturer	Seiko Instruments
File Size	505.06 KB
Description	(S-8540 / S-8541) 600 kHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
Datasheet	S-8540 Datasheet
Additional preview pages of the S-8540 datasheet.

Product details

Description

GND pin Connection pin for external transistor IC power supply pin Bypass capacitor connection pin for CVREF reference voltage source Shutdown pin Soft-start capacitor connection pin ON/ OFF Normal operation (step-down operation) All circuit halts (no step-down operation) None connected (A, C types) NC 1 FB Feed back pin (B, D types) VOUT Output voltage pin SENSE Current limit detection pin The NC pin is electrically open.

Features

s.
Oscillation frequency.
Output voltage.
Output voltage precision.
Feed back type for output voltage (FB).
External components:.
Built-in PWM/PFM switchover control circuit (S-8541 series).
Current limit circuit.
Soft-start.
Shutdown function.
Small package.
Lead-free products 600 kHz (A, B types) 300 kHz (C, D types) 1.5 to 6.0 V, selectable in 0.1V steps (A, C types) ±2.0% a transistor, a coil,.

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Other Datasheets by Seiko Instruments

S-8541 - (S-8540 / S-8541) 600 kHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
S-8520 - PWM CONTROL or PWM / PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
S-8521 - PWM CONTROL or PWM / PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
S-8533 - SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER
S-8550 - (S-8550 / S-8551) PWM CONTROL SWITCHING REGULATORS
S-8551 - (S-8550 / S-8551) PWM CONTROL SWITCHING REGULATORS

Published: Aug 28, 2009 |