Datasheet TLE4266G Datasheet (Siemens)

TLE 4266

5-V Low-Drop Voltage Regulator

Features

● Output voltage tolerance ≤± 2%

● Very low current consumption

● Low-drop voltage

● Overtemperature protection

● Reverse polarity proof

● Wide temperature range

● Suitable for use in automotive electronics

● Inhibit

Type Ordering Code Package

P-SOT223-4-2

TLE 4266

Bipolar IC

TLE 4266 G Q67006-A9152 P-SOT223-4-2

▼

▼ New type

Functional Description

TLE 4266 G is a 5 V low-drop voltage regulator in a P-SOT223-4-2 SMD package. The
IC regulates an input voltage

in the range of 5.5 V < Vi < 45 V to V

i

= 5 V. The

Qrated

V

maximum output current is more than 120 mA. The IC can be switched off via the inhibit
input, which causes the current consumption to drop below 10 µA. The IC is shortcircuit­proof and incorporates temperature protection that disables the IC an overtemperature.

Dimensioning Information on External Components

C

The input capacitor
approx. 1 Ω in series with
be clamped. The output capacitor
circuit. Stability is guaranteed at values

is necessary for compensating line influences. Using a resistor of

i

C

, the oscillating of input inductivity and input capacitance can

i

C

is necessary for the stability of the regulating

Q

C

≥ 10 µF and an ESR ≤ 10 Ω within the

Q

operating temperature range.

Semiconductor Group 1

11.96

Pin Configuration

(top view)

TLE 4266

Pin Definitions and Functions
Pin Symbol Function

1

V

I

Input voltage; block to ground directly at the IC with a ceramic

capacitor.
2 Inh Inhibit; low-active input.
3

V

Q

5-V output voltage; block to ground with a ≥ 10 µF capacitor.
4 GND Ground

Semiconductor Group 2

TLE 4266

Circuit Description

The control amplifier compares a reference voltage, which is kept highly accurate by
resistance adjustment, 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 incorporates a
number of internal circuits for protection against:

● Overload,

● Overtemperature,

● Reverse polarity.

Block Diagram

Semiconductor Group 3

Absolute Maximum Ratings

T

= – 40 to 150 °C

j

Parameter Symbol Limit Values Unit Notes

min. max.

Input

TLE 4266

Voltage
Current

Inhibit

Voltage

Output

Voltage
Current

GND

Current

Temperature

Junction temperature

V
I

V

V
I

I

T

i

i

e

Q

Q

M

j

– 42 45 V

internally limited

– 42 45 V

– 1 16 V

internally limited

50 mA

150 °C

Storage temperature

T

S

– 50 150 °C

Operating Range

Input voltage V
Junction temperature

T

i

j

5.5 45 V
– 40 150 °C

Thermal Resistance

Junction ambient
Junction case

R
R

thjA

thjC

Semiconductor Group 4

100 K/W soldered
25 K/W

TLE 4266

Characteristics

V

= 13.5 V; – 40 °C ≤ Tj≤ 125 °C

I

Parameter Symbol Limit Values Unit Test Condition

min. typ. max.

Output voltage

Output-current

V

I

Q

limitation
Current consumption

I

= Ii – I

q

Q

Current consumption

I

= Ii – I

q

Q

Current consumption

I

= Ii – I

q

Q

Drop voltage

I

I

I

V

q

q

q

Load regulation ∆V

Supply-voltage

∆

V

regulation

Q

Dr

4.9 5 5.1 V 5 mA ≤ IQ≤ 100 mA
6 V ≤

V

≤ 28 V

i

120 150 mA

010µAV

= 0 V; Tj≤ 100 °C

e

400 µA IQ = 1 mA

10 15 mA IQ = 100 mA

0.25 0.5 V IQ = 100 mA

Q

Q

15 30 mV VI = 6 V to 28 V

40 mV IQ = 5 to 100 mA

V

= 6 V

i

I

= 5 mA

Q

1)

Supply-voltage
rejection

SVR

54 dB fr = 100 Hz

V

= 0.5 V

r

SS

Inhibit

Inhibit on voltage
Inhibit off voltage
Inhibit current

1) Drop voltage = Vi – VQ (measured when the output voltage VQ has dropped 100 mV from the
nominal value obtained at Vi = 13.5 V).

V
V
I

e, on

e, off

e

3.5 V

0.8 V
51525µAV

= 5 V

e

Semiconductor Group 5

TLE 4266

Measuring Circuit

Application Circuit

Semiconductor Group 6

Drop Voltage

V

Output Current

versus

Dr

I

Q

TLE 4266

Current Consumption Iq versus
Input Voltage

V

i

Current Consumption Iq versus
Output Current

I

Q

Current Consumption Iq versus
Output Current

I

Q

Semiconductor Group 7

Output Voltage
Temperature

T

V

Q

j

versus

Output Current IQ versus
Input Voltage

V

i

TLE 4266

Output Voltage VQ versus
Input Voltage

V

i

Output Voltage VQ versus
Inhibit Voltage

V

e

Semiconductor Group 8

Package Outlines

P-SOT223-4-2 (SMD)

(Plastic Small Outline Transistor)

TLE 4266

Weight approx. 0.15 g

Sorts of Packing

Package outlines for tubes, trays etc. are contained in our
Data Book “Package Information”

SMD = Surface Mounted Device

GPS05560

Dimensions in mm

Semiconductor Group 9