NXP Semiconductors TDA3665
The TDA3665 is a fixed 8.5 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: • TDA3665: VP ≤ 45 V, −40 °C ≤ Tamb ≤ +125 °C and SO4 package (automotive) • TDA3665AT: VP ≤ 45 V, −40 °C ≤ Tamb ≤ +125 °C and SO8 package (automotive). FUNCTIONAL DESCRIPTION The TDA3665 is a fixed 8.5 V regulator which can deliver output currents up to 100 mA.| Part No. | TDA3665 |
|---|---|
| Datasheet | TDA3665 Download |
| Manufacturer |  NXP Semiconductors |
| Description | Very low dropout voltage/quiescent current 8.5 V voltage regulator |
| Buy | Stock & Price |
FEATURES
● Fixed 8.5 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 (see Fig.6) – 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 and t < 100 ms) – Able to withstand voltages up to 18 V at the output (supply line may be short-circuited) QUICK REFERENCE DATA SYMBOL Supply VP supply voltage TDA3665 TDA3665AT Iq VREG quiescent supply current VP = 14.4 V; IREG = 0 mA 11.5 V ≤ VP ≤ 22 V; IREG = 0.5 mA 11.5 V ≤ VP ≤ 45 V; IREG = 0.5 mA VP = 14.4 V; 0.5 mA ≤ IREG ≤ 100 mA VREG(drop) dropout voltage VP = 7.9 V; IREG = 50 mA; Tamb ≤ 85 °C Voltage regulator output voltage 8.08 8.0 8.0 − 8.5 8.5 8.5 0.18 regulator on 3 3 − 14.4 14.4 15 PARAMETER CONDITIONS MIN.
