Philips TDA3663T, TDA3663 Datasheet
DATA SH EET
Preliminary specification
File under Integrated Circuits, IC01
1999 Sep 29
INTEGRATED CIRCUITS
TDA3663
Very low dropout voltage/quiescent
current 3.3 V voltage regulator
1999 Sep 29 2
Philips Semiconductors Preliminary specification
Very low dropout voltage/quiescent current
3.3 V voltage regulator
TDA3663
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 I
REG
≤ 25 mA
– Other capacitors: 100 nFat 200 µA ≤ I
REG
≤ 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=10Ω, 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).
GENERAL DESCRIPTION
The TDA3663is afixed 3.3 V voltage regulator with a very
lowdropoutvoltage and quiescent current, which operates
over a wide supply voltage range.
The IC is available as:
• TDA3663: VP≤ 45 V, −40 °C ≤ T
amb
≤ +125 °C and
SOT4 package (automotive)
• TDA3663T: VP≤ 33 V, −40 °C ≤ T
amb
≤ +85 °C and
SO8 package (non-automotive)
• TDA3663AT: VP≤ 45 V, −40 °C ≤ T
amb
≤ +125 °C and
SO8 package (automotive).
QUICK REFERENCE DATA
ORDERING INFORMATION
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
Supply
V
P
input supply voltage regulator on
TDA3663 3 14.4 45 V
TDA3663T 3 14.4 33 V
TDA3663AT 3 14.4 45 V
I
q
quiescent supply current VP= 14.4 V; I
REG
=0mA − 15 30 µA
Voltage regulator
V
REG
output voltage 8 V ≤ VP≤ 22 V; I
REG
= 0.5 mA 3.16 3.3 3.44 V
6V≤V
P
≤45 V; I
REG
= 0.5 mA; 3.13 3.3 3.47 V
0.5 mA ≤ I
REG
≤ 100 mA;
VP= 14.4 V
3.13 3.3 3.47 V
V
REG(drop)
dropout voltage I
REG
= 50 mA; T
amb
≤ 85 °C − 0.18 0.3 V
TYPE
NUMBER
PACKAGE
NAME DESCRIPTION VERSION
TDA3663 SO4 plastic surface mounted package; collector pad for good heat
transfer; 4 leads
SOT223
TDA3663T SO8 plastic small outline package; 8 leads; body width 3.9 mm SOT96-1
TDA3663AT SO8 plastic small outline package; 8 leads; body width 3.9 mm SOT96-1
1999 Sep 29 3
Philips Semiconductors Preliminary specification
Very low dropout voltage/quiescent current
3.3 V voltage regulator
TDA3663
BLOCK DIAGRAM
handbook, halfpage
MGS584
REGULATOR
2, 4 (2, 3, 6, 7)
3 (1)
GND
1 (8)
REG
V
P
BAND GAP
TDA3663
THERMAL
PROTECTION
Fig.1 Block diagram.
Pins between brackets are for the SO8 version.
PINNING
Note
1. For the SO8 package all GND pins are connected to the lead frame and can also be used to reduce the total thermal
resistance R
th(j-a)
by soldering these pins to a ground plane. The ground plane on the top side of the PCB acts like a
heat spreader.
SYMBOL
PIN
DESCRIPTION
SO4 SO8
V
P
1 8 supply voltage
GND 2 and 4 2, 3, 6 and 7 ground; note 1
REG 3 1 regulator output
n.c. − 4 and 5 not connected
1999 Sep 29 4
Philips Semiconductors Preliminary specification
Very low dropout voltage/quiescent current
3.3 V voltage regulator
TDA3663
FUNCTIONAL DESCRIPTION
The TDA3663 is a fixed 3.3 V regulator which can deliver
output currents up to 100 mA. The regulator is available in
SO8 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.
The device remains operational down to very low supply
voltages and below this voltage it switches off.
Atemperatureprotection circuit is included which switches
off the regulator output at a junction temperature
above 150 °C.
A new output circuit guarantees the stability of the
regulator for a capacitor output circuit with an ESR up to
38 Ω. This is very attractive as the ESR of an electrolytic
capacitor increases strongly at low temperatures (no
expensive tantalum capacitor is required).
handbook, halfpage
132
4
GND
MGL810
GND
V
P
REG
Fig.2 Pin configuration of SO4.
handbook, halfpage
1
2
3
4
8
7
6
5
MGS585
TDA3663
V
P
GNDGND
GND
n.c.
n.c.
GND
REG
Fig.3 Pin configuration of SO8.
1999 Sep 29 5
Philips Semiconductors Preliminary specification
Very low dropout voltage/quiescent current
3.3 V voltage regulator
TDA3663
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
THERMAL CHARACTERISTICS
QUALITY SPECIFICATION
In accordance with
“SNW-FQ-611E”
.
SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
V
P
supply voltage
TDA3663 − 45 V
TDA3663T − 33 V
TDA3663AT − 45 V
V
P(rp)
reverse polarity supply voltage non-operating −−25 V
P
tot
total power dissipation
SO8 temperature of copper area
is 25 °C
− 4.1 W
SO4 T
amb
=25°C − 5W
T
stg
storage temperature non-operating −55 +150 °C
T
amb
ambient temperature operating
TDA3663 −40 +125 °C
TDA3663T −40 +85 °C
TDA3663AT −40 +125 °C
T
j
junction temperature operating −40 +150 °C
SYMBOL PARAMETER CONDITIONS VALUE UNIT
R
th(j-a)
thermal resistance from junction to ambient
SO8 in free air; soldered in 125 K/W
SO4 in free air; soldered in 100 K/W
R
th(j-c)
thermal resistance from junction to case
SO8 to centre pins; soldered 30 K/W
SO4 in free air 25 K/W
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