GENERAL DESCRIPTION
The TDA3663 is a fixed 3.3 V voltage regulator with a very low dropout voltage and quiescent current, which operates over a wide supply voltage range.The IC is available as:

• TDA3663: VP ≤ 45 V, −40 °C ≤ Tamb ≤ +125 °C and SOT4 package (automotive)
• TDA3663T: VP ≤ 33 V, −40 °C ≤ Tamb ≤ +85 °C and SO8 package (non-automotive)
• TDA3663AT: VP ≤ 45 V, −40 °C ≤ Tamb ≤ +125 °C and SO8 package (automotive).

FEATURES
• Fixed 3.3 V, 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) < 30 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)
   – 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 > 150 °C).