Philips Semiconductors
Very low dropout voltage/quiescent
current 5 V voltage regulator
Preliminary specification
TDA3664
FEATURES
General
• Fixed 5 V, 100 mA regulator
• Supply voltage range up to +33 V (45 V)
• Very low quiescent current (typically 15 µA)
• Very low dropout voltage
• High ripple rejection
• Very high stability
– Electrolytic capacitors: ESR (Equivalent Series
resistance) < 38 Ω at IREG ≤ 25 mA
– Other capacitors: 100 nF at 200 µA ≤ IREG ≤ 100 mA
see Fig.5 and Fig.6
• Pin compatible family TDA3662 up 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 regulator
output
• Temperature protection (Tj > 150 °C).
GENERAL DESCRIPTION
The TDA3664 is a fixed 5 V voltage regulator with very low
dropout voltage/quiescent current, which operates over a
wide supply voltage range.
The regulator is available as:
• TDA3664T: SO8 package (non-automotive)
• TDA3664AT: SO8 package (automotive)
• TDA3664: SOT223 package (automotive).
Automotive: VP ≤ 50P V, −40 °C ≤ Tamb ≤ +125 °C.
Non-automotive: VP ≤ 22V, −40 °C ≤ Tamb ≤ +85 °C.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
Supply
VP
supply voltage
TDA3664
TDA3664AT
TDA3664T
Iq(tot)
total quiescent supply current
(all versions)
Voltage regulator
VREG
regulator output voltage
TDA3664T
TDA3664 and TDA3664AT
IREG
VREG(drop)
regulator output current
dropout voltage
CONDITIONS
regulator on
regulator on
regulator on
VP = 14.4 V; no load
8 V ≤ VP ≤ 22 V
6 V ≤ VP ≤ 45 V
0.5 mA ≤ IREG ≤ 100 mA
IREG = 50 mA
MIN. TYP. MAX. UNIT
3
14.4 45
V
3
14.4 45
V
3
14.4 33
V
−
15
30
µA
4.8 5.0 5.2 V
4.75 5.0 5.25 V
4.75 5.0 5.25 V
−
0.18 0.3 V
ORDERING INFORMATION
TYPE
NUMBER
TDA3664
TDA3664T
TDA3664AT
PACKAGE
NAME
DESCRIPTION
− plastic surface mounted package; collector pad for good heat transfer; 4 leads
SO8 plastic small outline package; 8 leads; body width 3.9 mm
SO8 plastic small outline package; 8 leads; body width 3.9 mm
VERSION
SOT223
SOT96-1
SOT96-1
1999 Sep 01
2