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LR645

Part Number	LR645
Manufacturer	Supertex Inc
Description	High Input Voltage SMPS Start-up / Linear Regulator
Published	Apr 25, 2005
Detailed Description	LR645 High Input Voltage SMPS Start-up / Linear Regulator Ordering Information Order Number / Package Max. Input Voltage...
Datasheet	LR645 PDF File

Overview

LR645 High Input Voltage SMPS Start-up / Linear Regulator Ordering Information Order Number / Package Max.
Input Voltage 450V TO-92 LR645N3 TO-243AA* LR645N8 TO-220 SO-8 Die Product marking for TO-243AA: LR6❋ where ❋ = 2-week alpha date code LR645N5 LR645LG LR645ND *Same as SOT-89.
Product supplied on 2000 piece carrier tape reels.
Features ❏ Accepts inputs from 15V to 450V ❏ Compatible with industry standard PWM ICs.
See application note AN-H28.
❏ Output currents up to 3mA continuous, 30mA peak ❏ Supply current typically 50µA ❏ Line regulation typically 0.
1mV/V ❏ Output can be trimmed from 8.
0V to 12V ❏ Output current can be increased to 150mA with external FET General Description The S...

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