General description
The TDA3664 is a fixed voltage regulator with very low dropout voltage/quiescent current, which operates over a wide supply voltage range.
The regulator is available as:
• TDA3664: SO4 package
• TDA3664AT: SO8 package
• TDA3664TT: TSSOP8 package

FEATUREs
■ Fixed 5 V, 100 mA regulator
■ Supply voltage range up to 45 V
■ Very low quiescent current of 15 µA (typical value)
■ Very low dropout voltage
■ High ripple rejection
■ 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 (Tj > 150 °C)