Datasheet TLE 4274 Datasheet (lnfineon)

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Voltage Regulator

Features

• Output voltage: 3.3 V/2.5 V

• Current capability 400 mA

• Very low current consumption

• Short-circuit proof

• Reverse polarity proof

• Suitable for use in automotive electronics

Functional Description

The TLE 4274 / 3.3V;2.5V is a voltage regulator available
in a SOT223 and TO252 package. The IC regulates an
input voltage up to 40 V to
maximum output current is 400 mA. The IC is short­circuit proof and has a shutdown circuit protecting it
against overtemperature. The TLE 4274 is also available
as 5 V, 8.5 V and 10 V version. Please refer to the data
sheet TLE 4274.

V

Qrated

± 4%

= 3.3 V/2.5 V. The

TLE 4274 / 3.3V;2.5V

P-SOT223-4

P-TO252-3-1

Dimensioning Information on External Components

The input capacitor
approx. 1

Ω in series with C

be damped. The output capacitor
Stability is guaranteed for capacities

C

is necessary for compensating line influences. Using a resistor of

I

, the oscillating of input inductivity and input capacitance can

I

C

is necessary for the stability of the regulation circuit.

Q

C

≥ 10 µF with an ESR of ≤ 2.5 Ω within the

Q

operating temperature range.

Type Ordering Code Package

TLE 4274 GSV33 Q67006-A9289 P-SOT223-4-1
TLE 4274 DV33 Q67006-A9348 P-TO252-3-1
TLE 4274 GSV25 Q67006-A9359 P-SOT223-4-1

Data Sheet 1 Rev. 2.1, 2004-01-01

TLE 4274 / 3.3V;2.5V

Circuit Description

The control amplifier compares a reference voltage to a voltage that is proportional to the
output voltage and drives the base of the series transistor via a buffer. Saturation control
as a function of the load current prevents any oversaturation of the power element. The
IC also includes a number of internal circuits for protection against:

•Overload

• Overtemperature

• Reverse polarity

P-TO252-3-1 (D-PAK)

P-SOT223-4-1

GND

1

Ι

2

GND

Q

4

GND

3

AEP02282

13

Ι Q

AEP02561

Figure 1 Pin Configuration (top view)

Table 1 Pin Definitions and Functions
Pin No. Symbol Function

1I Input; block to ground directly at the IC with a ceramic capacitor.
2, 4 GND Ground; P-TO252-3-1: internally connected to heatsink
3Q Output; block to ground with capacitor

C

≥ 10 µF, ESR ≤ 2.5 Ω

Q

Data Sheet 2 Rev. 2.1, 2004-01-01

TLE 4274 / 3.3V;2.5V

Temperature

Sensor

1

Ι

Control

Amplifier

Bandgap

Reference

Buffer

Saturation

Control and

Protection

Circuit

2

GND

AEB02283

3

Q

Figure 2 Block Diagram

Data Sheet 3 Rev. 2.1, 2004-01-01

TLE 4274 / 3.3V;2.5V

Table 2 Absolute Maximum Ratings

T

= -40 to 150 °C

j

Parameter Symbol Limit Values Unit Test Condition

Min. Max.

Input

Voltage
Current

V
I

I

I

-42 45 V –
– – – Internally limited

Output

Voltage
Current

V
I

Q

Q

-1.0 40 V –
– – – Internally limited

Ground

Current

I

GND

–100mA–

Temperature

Junction temperature
Storage temperature

T

j

T

stg

–150°C–

-50 150 °C–

Note: Maximum ratings are absolute ratings; exceeding any one of these values may

cause irreversible damage to the integrated circuit.

Table 3 Operating Range
Parameter Symbol Limit Values Unit Remarks

Min. Max.

Input voltage
Junction temperature

V
T

I

j

4.7 40 V –

-40 150 °C–

Thermal Resistance

Junction ambient
Junction ambient R
Junction case R
Junction case

1) Soldered in, 1 cm2 copper area at pin 4, FR4

2) Soldered in, minimal footprint, FR4

Data Sheet 4 Rev. 2.1, 2004-01-01

R

R

thja

thja

thjc

thjc

–100K/WSOT223
–70K/WTO252
–25K/WSOT223
–4K/WTO252

1)

2)

TLE 4274 / 3.3V;2.5V

Table 4 Characteristics

V

= 6 V; -40 °C < Tj < 150 °C (unless otherwise specified)

I

Parameter Symbol Limit Values Unit Measuring Condition

Min. Typ. Max.

Output voltage
V33-Version

Output voltage
V33-Version

Output voltage
V25-Version

Output voltage
V25-Version

Output current
limitation

1)

Current consumption;

I

= II - I

q

Q

Current consumption;

I

= II - I

q

Q

Current consumption;

I

= II - I

q

Drop voltage

Q

1)

V33-Version
Drop voltage

1)

V25-Version

V

V

V

V

I

I

I

I

V

V

Q

Q

Q

Q

Q

q

q

q

dr

dr

3.17 3.3 3.44 V 5 mA < IQ < 400 mA

V

4.7 V <

< 28 V

I

3.17 3.3 3.44 V 5 mA < IQ < 200 mA

V

4.7 V <

< 40 V

I

2.4 2.5 2.6 V 5 mA < IQ < 400 mA

V

4.7 V <

< 28 V

I

2.4 2.5 2.6 V 5 mA < IQ < 200 mA

4.7 V <

V

< 40 V

I

400 600 – mA –

– 100 220 µA IQ = 1 mA

–815mAIQ = 250 mA

– 2030mAIQ = 400 mA

–0.71.2V IQ = 300 mA

V

= VI - V

dr

Q

–1.02.0V IQ = 300 mA

V

= VI - V

dr

Q

Load regulation ∆V

Line regulation

Power supply ripple

∆V

PSRR –60–dBf

rejection
Temperature output

V

d

Q

Q

/dT –0.5–mV/K–

Q

– 4070mVIQ = 5 mA to 300 mA;

V

= 6 V

I

– 1025mV∆Vl = 12 V to 32 V

I

= 5 mA

Q

= 100 Hz;

r

V

= 0.5 Vpp

r

voltage drift

1) Measured when the output voltage VQ has dropped 100 mV from the nominal value obtained at VI = 6 V.

Data Sheet 5 Rev. 2.1, 2004-01-01

TLE 4274 / 3.3V;2.5V

V

Ι

C

Q

µ

100 F

C

Ι

100 nF

Figure 3 Measuring Circuit

Ι

1

TLE 4274 GSV33

2, 4

GND

Q

4

C

Q

µ

10 F

V

Q

R

Load

AES02284

5 - 40 V

Ι

Input

C

Ι

100 nF

Figure 4 Application Circuit

1

TLE 4274 GSV33

2, 4

GND

Q

4

3.3 V

/

2.5 V

Output

C

Q

10 µF

AES02285

Data Sheet 6 Rev. 2.1, 2004-01-01

TLE 4274 / 3.3V;2.5V

4.5 - 40 V

C

Ι

470 nF

1 kΩ

Ι

TLE 4276

GND

Ι

TLE 4274 GSV33

GND

Q

INH

Q

C

22

C

10

Q1

Q2

10 V
e.g. to sensor

µ

F

µ

e.g. to C

3.3 V
to C

µ

µ

F

AES02579

Figure 5 Application Example

Data Sheet 7 Rev. 2.1, 2004-01-01

Typical Performance Characteristics

V

Output Voltage
Junction Temperature

3.5

V

V

Q

3.4

3.3

versus

Q

V

= 6 V

I

T

(V33-Version)

j

AED02288

TLE 4274 / 3.3V;2.5V

V

Output Voltage
Junction Temperature

2.7

V

V

Q

2.6

2.5

versus

Q

V

= 6 V

I

T

(V25-Version)

j

AED02806

3.2

3.1

3.0

2.9

-40 04080120 ˚C 160

Input Current
Input Voltage

3.5

mA

I

I

3.0

2.5

I

versus

q

V

(V33-Version)

I

T

j

AED01969

2.4

2.3

2.2

2.1

-40 04080120 ˚C 160

Input Current
Input Voltage

3.5

mA

I

I

3.0

2.5

I

versus

q

V

(V25-Version)

I

T

j

AED03016

2.0

1.5

1.0

0.5

-2

0

-50

T

= 25 ˚C

j

R

= 3.3 k

I

-25 0 25

Ω

V

50

V

I

2.0

1.5

1.0

0.5

-2

0

-50

T

= 25 ˚C

j

R

= 3.3 k

I

-25 0 25

Ω

50

V

V

I

Data Sheet 8 Rev. 2.1, 2004-01-01

TLE 4274 / 3.3V;2.5V

Current Consumption Iq versus

I

Output Current

0.6

mA

I

q

0.5

0.4

0.3

0.2

0.1

0

0

10 20 30 40 mA 60

(low load)

Q

= 25 ˚C

T

j

V

= 13.5 V

I

AED02268

Current Consumption Iq versus

I

Output Current

60

mA

I

q

50

40

30

20

10

0

0

100 200 300 400 600

I

Q

(high load)

Q

= 25 ˚C

T

j

V

= 13.5 V

I

AED02267

mA

I

Q

Output Current
Input Voltage

800

mA

Ι

Q

600

400

200

0

V

I

versus

Q

I

T

= 25 C

j

V

= 0 V

Q

20010

30

AED02287

40

V

50

V

Ι

Region of Stability

C

Q

ESR

= 10 µF

10

Ω

9

8

7

6

5

4

3

2

1

0

0.2

10

0

for

AED03050

12

10

10 mA

I

Q

500

Data Sheet 9 Rev. 2.1, 2004-01-01

Package Outlines

A

6.5
3

±0.2

±0.1

0.1 MAX.

TLE 4274 / 3.3V;2.5V

±0.1

1.6

0.7

±0.1

1 2

4

3

2.3

+0.2

acc. to
DIN 6784

±0.3

7

MAX.
15˚

0.5 MIN.

4.6

0.25

M

A

0.25

M

Figure 6 P-SOT223-4-1 (Plastic Small Outline Transistor)

0.28

B

B

±0.2

3.5

±0.04

GPS05560

You can find all of our packages, sorts of packing and others in our
Infineon Internet Page “Products”: http://www.infineon.com/products.

SMD = Surface Mounted Device

Dimensions in mm

Data Sheet 10 Rev. 2.1, 2004-01-01

TLE 4274 / 3.3V;2.5V

+0.15

6.5

±0.1

1

5.4

-0.10

±0.1

A

B

2.3

+0.05

-0.10

0.9

+0.08

-0.04

±0.5

9.9

-0.2

6.22

±0.15

0.8
min0.51

0.15

max

per side

3x

0.75

±0.1

0...0.15

2.28

4.57

M

B

A0.25

0.1

All metal surfaces tin plated, except area of cut.

Figure 7 P-TO252-3-1 (Plastic Transistor Single Outline)

+0.08

0.5

-0.04

±0.1

1

GPT09051

You can find all of our packages, sorts of packing and others in our
Infineon Internet Page “Products”: http://www.infineon.com/products.

SMD = Surface Mounted Device

Dimensions in mm

Data Sheet 11 Rev. 2.1, 2004-01-01

Edition 2004-01-01
Published by Infineon Technologies AG,

St.-Martin-Strasse 53,
81669 München, Germany

© Infineon Technologies AG 2004.

All Rights Reserved.

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