(PDF) L4916 Datasheet - VOLTAGE REGULATOR PLUS FILTER

Número de pieza	L4916
Descripción	VOLTAGE REGULATOR PLUS FILTER
Fabricantes	STMicroelectronics
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No Preview Available ! ® L4916 VOLTAGE REGULATOR PLUS FILTER ........ FIXEDOUTPUT VOLTAGE8.5 V 250 mA OUTPUT CURRENT HIGH RIPPLE REJECTION HIGH LOAD REGULATION HIGH LINE REGULATION SHORT CIRCUIT PROTECTION THERMAL SHUT DOWN WITH HYSTERESIS DUMP PROTECTION DESCRIPTION This circuit combinesboth a filter and a voltageregu- lator in order to provide a high ripple rejection over a wider input voltage range. A supervisor low-pass loop of the element prevents the outputtransistor from saturationat low input volt- ages. The non linear behaviour of this control circuitry allows a fast settling of the filter. BLOCK DIAGRAM POWER MINIDIP (4 + 4) ORDERING NUMBER : L4916 June 2000 1/8 1 page Figure 3 : Nonliner Transfer Characteristic of the Drop Control Unit. L4916 Figure 4 : SupplyVoltage Rejection vs. Input Voltage. 1) Normal operating range (high ripple rejection) 2) Drop controlled range (medium ripple rejection) 3) Fast discharge of CFT Figure 5 : Supply voltage Rejection vs. Frequency. Figure 6 : Vo vs. Supply Voltage. Figure 7 : Quiescent Current vs. Input Voltage. 5/8 5 Page

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PDF L4916 Data sheet ( Hoja de datos )