TDA3673

INTEGRATED CIRCUITS DATA SHEET TDA3673 Very low dropout voltage/quiescent current 3.3 V voltage regulator with enable Preliminary specification Supersedes data of 1999 Sep 29 File under Integrated Circuits, IC01 2000 Feb 01 Philips Semiconductors Preliminary specification Very low dropout voltage/quiescent current 3.3 V voltage regulator with enable FEATURES Fixed 3.3 V, 100 mA regulator with enable function Supply voltage range up to 33 V (45 V) Very low quiescent current of 15 µA (typical value) Very low dropout voltage High ripple rejection Very high stability: – Electrolytic capacitors: Equivalent Series Resistance (ESR) < 38 Ω at IREG ≤ 25 mA – Other capacitors: 100 nF at 200 µA ≤ IREG ≤ 100 mA. Pin compatible family TDA3672 to TDA3676 Protections: – Reverse polarity safe (down to −25 V without high reverse current) – Negative transient of 50 V (RS = 10 Ω, t < 100 ms) QUICK REFERENCE DATA SYMBOL Supply VP supply voltage TDA3673T TDA3673AT Iq quiescent supply current VP = 14.4 V; IREG = 0 mA; VI(EN) = 5 V 8 V ≤ VP ≤ 22 V; IREG = 0.5 mA 6 V ≤ VP ≤ 45 V; IREG = 0.5 mA 0.5 mA ≤ IREG ≤ 100 mA; VP = 14.4 V VREG(drop) dropout voltage VP = 3.1 V; IREG = 50 mA; Tamb ≤ 85 °C regulator on 3 3 − 14.4 14.4 15 PARAMETER CONDITIONS MIN. TYP. TDA3673 – Able to withstand voltages up to 18 V at the output (supply line may be short-circuited) – ESD protection on all pins – DC short-circuit safe to ground and VP of the regulator output – Temperature protection (at Tj > ...