Very low dropout voltage/quiescent
current 5 V voltage regulator
Product specification
Supersedes data of 2000 Dec 08
File under Integrated Circuits, IC01
2000 Dec 14
Philips SemiconductorsProduct specification
Very low dropout voltage/quiescent current
5 V voltage regulator
FEATURES
General
• 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
• Very high stability:
– Electrolytic capacitors:Equivalent Series Resistance
(ESR) <22 Ω at worst-case condition
– Other capacitors: 100 nF at 200 µA ≤ I
REG
≤ 100 mA.
• 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=10Ω and 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).
GENERAL DESCRIPTION
TheTDA3664 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:
• TDA3664: SO4 package (automotive)
• TDA3664AT: SO8 package (automotive)
• TDA3664TT: TSSOP8 package (automotive).
Automotive: VP≤ 45 V and −40 °C ≤ T
TDA3664
≤ +125 °C.
amb
QUICK REFERENCE DATA
SYMBOLPARAMETERCONDITIONSMIN.TYP.MAX.UNIT
Supply
V
P
I
q
supply voltageregulator on314.445V
quiescent supply currentVP= 14.4 V; I
=0mA−1530µA
REG
Voltage regulator
V
REG
regulator output voltage6 V ≤ VP≤ 22 V; I
8V≤V
0.5 mA ≤ I
≤45 V; I
P
REG
≤ 100 mA;
= 0.5 mA4.85.05.2V
REG
= 0.5 mA4.755.05.25V
REG
4.755.05.25V
VP= 14.4 V
V
REG(drop)
dropout voltageVP= 4.5 V; I
T
≤ 85 °C
amb
REG
= 50 mA;
−0.180.3V
2000 Dec 142
Philips SemiconductorsProduct specification
Very low dropout voltage/quiescent current
TDA3664
5 V voltage regulator
ORDERING INFORMATION
TYPE
NUMBER
NAMEDESCRIPTIONVERSION
TDA3664SO4plastic small outline package; 4 leads; body width 3.5 mmSOT223-1
TDA3664ATSO8plastic small outline package; 8 leads; body width 3.9 mmSOT96-1
TDA3664TTTSSOP8plastic thin shrink small outline package; 8 leads; body width 3 mmSOT505-1
BLOCK DIAGRAM
handbook, halfpage
1 (8)
V
P
BANDGAP
PACKAGE
REGULATOR
3 (1)
REG
TDA3664
Pin numbers in brackets refer to the SO8 and TSSOP8 version.
Fig.1 Block diagram.
THERMAL
PROTECTION
2, 4 (3)
MGL809
GND
2000 Dec 143
Philips SemiconductorsProduct specification
Very low dropout voltage/quiescent current
5 V voltage regulator
PINNING
SYMBOL
SO4SO8TSSOP8
V
P
188supply voltage
GND2 and 433ground
REG311regulator output
n.c.−2, 4, 5, 6 and 72,4, 5, 6 and 7not connected
handbook, halfpage
GND
4
132
V
P
GND
REG
MGL810
PIN
handbook, halfpage
1
REG
2
n.c.n.c.
GNDn.c.
n.c.n.c.
3
4
TDA3664
TDA3664
DESCRIPTION
V
8
P
7
6
5
MDA959
Fig.2 Pin configuration of SO4.
FUNCTIONAL DESCRIPTION
The TDA3664 is a fixed 5 V regulator which can deliver
output currents up to 100 mA. The regulator is available in
SO8, TSSOP8 and SO4 packages. The regulator is
intended for portable, mains, telephone and automotive
applications. To increase the lifetime of batteries,
a specially built-in clamp circuit keeps the quiescent
current of this regulator very low, also in dropout and full
load conditions.
Fig.3 Pin configuration of SO8 and TSSOP8.
Theregulatorremains operational down to very low supply
voltages, below which it switches off.
A temperature protection is included, which switches the
regulator output off at IC temperatures above 150 °C.
A new output structure guarantees the stability of the
regulator with an ESR (worst-case) up to 22 Ω,
see Figs 5 and 6. This is very attractive as the ESR of an
electrolytic capacitor increases strongly at low
temperatures (no expensive tantalum capacitor required).
2000 Dec 144
Philips SemiconductorsProduct specification
Very low dropout voltage/quiescent current
TDA3664
5 V voltage regulator
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 60134).
SYMBOLPARAMETERCONDITIONSMIN.MAX.UNIT
V
P
V
P(rp)
P
tot
T
stg
T
amb
T
j
THERMAL CHARACTERISTICS
SYMBOL PARAMETERCONDITIONSVALUE UNIT
R
th(j-a)
R
th(j-c)
supply voltage−45V
reverse polarity supply voltagenon-operating−−25V
total power dissipationtemperature of copper area