TDA3661

INTEGRATED CIRCUITS DATA SHEET TDA3661 Very low dropout voltage/quiescent current adjustable voltage regulator 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 adjustable voltage regulator FEATURES Output adjustable from 1.5 V to VP, 100 mA regulator 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 TDA3662 to TDA3666 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 TDA3661T TDA3661AT Iq VREG quiescent supply current VP = 14.4 V; IREG = 0 mA 8 V ≤ VP ≤ 22 V; IREG = 0.5 mA 6 V ≤ VP ≤ 45 V; IREG = 0.5 mA VP = 14.4 V; 0.5 mA ≤ IREG ≤ 100 mA Vref VREG(drop) Note 1. V REG = V ref × k reference voltage dropout voltage VP = 14.4 V VP = 4.5 V; IREG = 50 mA Tamb ≤ 85 °C; Regulator; k = 4.01929 (note 1) output voltage 4.8 4.75 4.75 1.181 − 5.0 5.0 5.0 1.244 0.18 regulator on 3 3 − 14.4 14.4 15 PARAMETER CONDITIONS MIN. TYP. TDA3661 – Able to withstand voltages up to 18 V at the output (supply line may be short-circuit...