SP6643 - Step-Up DC-DC Converter

Product Overview

Sipex

Datasheet Details

Part number	SP6643
Manufacturer	Sipex
File Size	245.72 KB
Description	Step-Up DC-DC Converter
Datasheet	SP6643 Datasheet
Additional preview pages of the SP6643 datasheet.

Product details

Description

The SP6642/6643 devices are high-efficiency, low-power step-up DC-DC converters for +1V inputs ideal for single alkaline cell applications such as pagers, remote controls, and other low-power portable end products.

Features

an active LOW output for low-battery conditions. Both devices contain a 0.8Ω synchronous rectifier, an oscillator, a 0.6Ω N-channel MOSFET power switch, an internal voltage reference, circuitry for pulse-frequency-modulation, and an under voltage comparator. The output voltage for the SP6642/6643 devices is preset to +3.3V + 4% or can be adjusted from +2V to +5.5V by manipulating two external resistors. VBATT 1 PFI 2 PFO 3 SHDN 4 SP6642 8 VOUT 7 LX 6 GND 5 FB VBATT 1 PFI 2 BATTLO 3 PFO 4 SP.

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Other Datasheets by Sipex

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Published: Jun 7, 2005 |