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TDA3666 Scheda tecnica(PDF) 4 Page - NXP Semiconductors |
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TDA3666 Scheda tecnica(HTML) 4 Page - NXP Semiconductors |
4 / 20 page 2000 Apr 26 4 Philips Semiconductors Preliminary specification Very low dropout voltage/quiescent current 10 V voltage regulator TDA3666 handbook, halfpage 13 2 TDA3666 4 GND MGU151 GND VP REG Fig.2 Pin configuration of SO4. handbook, halfpage 1 2 3 4 8 7 6 5 MBL129 TDA3666AT VP GND GND GND n.c. n.c. GND REG Fig.3 Pin configuration of SO8. FUNCTIONAL DESCRIPTION The TDA3666 is a fixed 10 V regulator which can deliver output currents up to 100 mA. The regulator is available in SO8 and SO4 packages. The regulator is intended for portable, mains, telephone and automotive applications. To increase the lifetime of batteries, a specially built-in clamp circuit keeps the quiescent current of this regulator very low, also in dropout and full load conditions. The regulator remains operational down to very low supply voltages and below this voltage it switches off. A temperature protection circuit is included which switches the regulator output off at a junction temperature above 150 °C. A new output circuit guarantees the stability of the regulator for a capacitor output circuit with an ESR up to 22 Ω (see Figs 5 and 6). This is very attractive as the ESR of an electrolytic capacitor increases strongly at low temperatures (no expensive tantalum capacitor is required). |
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