Philips TDA3662 Datasheet

INTEGRATED CIRCUITS

DATA SH EET

TDA3662

Very low dropout voltage/quiescent
current 3.0 V voltage regulator

Preliminary specification
File under Integrated Circuits, IC01

2000 Apr 26

Philips Semiconductors Preliminary specification

Very low dropout voltage/quiescent current

3.0 V voltage regulator

FEATURES

• Fixed 3.0 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

– Other capacitors: 100 nFat 200 µA ≤ I

≤ 25 mA (see Fig.6)

REG

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 and

t < 100 ms)

– Able to withstand voltages up to 18 V at the output

– ESD protection on all pins
– DC short-circuit safe to ground and VP of the

– Temperature protection (at Tj> 150 °C).

GENERAL DESCRIPTION

The TDA3662is afixed 3.0 V voltage regulator with a very
lowdropoutvoltage and quiescent current, which operates
over a wide supply voltage range.

The IC is available as:

• TDA3662: VP≤ 45 V, −40 °C ≤ T
SO4 package (automotive)

• TDA3662AT: VP≤ 45 V, −40 °C ≤ T
SO8 package (automotive).

(supply line may be short-circuited)

regulator output

amb

amb

TDA3662

≤ +125 °C and

≤ +125 °C and

QUICK REFERENCE DATA

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supply

V

P

supply voltage regulator on

TDA3662 3 14.4 45 V
TDA3662AT 3 14.4 45 V

I

q

quiescent supply current VP= 14.4 V; I

=0mA − 15 30 µA

REG

Voltage regulator

V

REG

V

REG(drop)

output voltage 7.5 V ≤ VP≤ 22 V; I

5.5 V ≤ V
V

= 14.4 V;

P

0.5 mA ≤ I

dropout voltage VP= 2.5 V; I

T

amb

P

REG

≤ 85 °C

≤ 45 V; I

≤ 100 mA

REG

= 0.5 mA 2.84 3.0 3.16 V

REG

= 0.5 mA 2.81 3.0 3.19 V

REG

2.81 3.0 3.19 V

= 50 mA;

− 0.18 0.3 V

ORDERING INFORMATION

TYPE

NUMBER

NAME DESCRIPTION VERSION

PACKAGE

TDA3662 SO4 plastic small outline package; 4 leads; body width 3.5 mm SOT223-1
TDA3662AT SO8 plastic small outline package; 8 leads; body width 3.9 mm SOT96-1

2000 Apr 26 2

Philips Semiconductors Preliminary specification

Very low dropout voltage/quiescent current

3.0 V voltage regulator

BLOCK DIAGRAM

handbook, halfpage

1 (8)

V

P

REGULATOR

BAND GAP

TDA3662

PROTECTION

2, 4 (2, 3, 6, 7)

GND

THERMAL

3 (1)

MBL134

TDA3662

REG

Pin numbers in brackets refer to the SO8 version.

Fig.1 Block diagram.

PINNING

PIN

SYMBOL

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

Note

1. For the SO8 package all pins GND are connected to the lead frame and can also be used to reduce the total thermal
resistance R

by soldering these pins to a ground plane. The ground plane on the top side of the PCB acts like a

th(j-a)

heat spreader.

2000 Apr 26 3

Philips Semiconductors Preliminary specification

Very low dropout voltage/quiescent current

3.0 V voltage regulator

handbook, halfpage

GND

4

TDA3662

132

V

P

GND

REG

MGU143

handbook, halfpage

REG

GND

n.c.

1
2

TDA3662AT

3
4

MBL133

TDA3662

V

8

P

GNDGND

7

GND

6

n.c.

5

Fig.2 Pin configuration of SO4.

FUNCTIONAL DESCRIPTION

The TDA3662 is a fixed 3.0 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.

Theregulatorremainsoperationaldown to very low supply
voltages and below this voltage it switches off.

Fig.3 Pin configuration of SO8.

Atemperatureprotection circuit is included which switches
the regulator output off 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 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 is
required).

2000 Apr 26 4

Philips Semiconductors Preliminary specification

Very low dropout voltage/quiescent current

TDA3662

3.0 V voltage regulator

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 60134).

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT

V

P

V

P(rp)

P

tot

T

stg

T

amb

T

j

supply voltage

TDA3662 − 45 V

TDA3662AT − 45 V
reverse polarity supply voltage non-operating −−25 V
total power dissipation

TDA3662AT temperature of copper area

− 4.1 W

is 25 °C

TDA3662 T

=25°C − 5W

amb

storage temperature non-operating −55 +150 °C
ambient temperature operating

TDA3662 −40 +125 °C

TDA3662AT −40 +125 °C
junction temperature operating −40 +150 °C

THERMAL CHARACTERISTICS

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 in 30 K/W

SO4 in free air 25 K/W

QUALITY SPECIFICATION

In accordance with

“SNW-FQ-611E”

.

2000 Apr 26 5

Philips Semiconductors Preliminary specification

Very low dropout voltage/quiescent current

TDA3662

3.0 V voltage regulator

CHARACTERISTICS

VP= 14.4 V; T

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supply voltage: pin V

V

P

I

q

Regulator output: pin REG; note 2
V

REG

V

REG(drop)

V

REG(stab)

∆V

REG(line)

∆V

REG(load)

SVRR supply voltage ripple rejection f

I

REG(crl)

I

LO(rp)

=25°C; measured with test circuit (see Fig.4); unless otherwise specified.

amb

P

supply voltage regulator operating; note 1

TDA3662 3 14.4 45 V
TDA3662AT 3 14.4 45 V

quiescent supply current VP= 4.5 V; I

V

= 14.4 V; I

P

5.5 V ≤ V

5.5 V ≤ V

P
P

output voltage 7.5 V ≤ VP≤ 22 V;

I

= 0.5 mA

REG

0.5 mA ≤ I

5.5 V ≤ V
I

REG

P

= 0.5 mA

dropout voltage VP= 2.5 V; I

T

≤ 85 °C

amb

=0mA − 10 −µA

REG

=0mA − 15 30 µA

REG

≤ 22 V; I
≤ 22 V; I

=10mA − 0.2 0.5 mA

REG

=50mA − 1.4 2.5 mA

REG

2.84 3.0 3.16 V

≤ 100 mA 2.81 3.0 3.19 V

REG

≤ 22 V;

REG

=50mA;

2.81 3.0 3.19 V

− 0.18 0.3 V

long-term stability − 20 − mV/1000 h
line regulation voltage 6.5 V ≤ VP≤ 22 V;

I

= 0.5 mA

REG

6.5 V ≤ V
I

REG

load regulation voltage 0.5 mA ≤ I

= 120 Hz;

i

V

i(ripple)

I

REG

current limit V
output leakage current at

REG

VP= −15 V; V

≤ 22 V;

P

= 0.5 mA

≤ 50 mA − 10 50 mV

REG

= 1 V (RMS);

= 0.5 mA

> 2.5 V 0.17 0.25 − A

REG

≤ 0.3 V − 1 500 µA

− 130mV

− 150mV

50 60 − dB

reverse polarity

Notes

1. The regulator output will follow V

if VP<V

P

REG+VREG(drop)

.

2. Limiting values as applicable for both device types: VP≤ 45 V and −40 °C ≤ T

2000 Apr 26 6

≤ +125 °C.

amb