TLE7272-2 Datasheet, PDF (15/21 Pages) Infineon Technologies AG – 5-V Low Dropout Voltage Regulator

TLE7272-2
Electrical Characteristics
5.3
Electrical Characteristics Enable Function
The Enable Function allows disabling/enabling the regulator via the input pin EN. The regulator is turned on in
case the pin EN is connected to a voltage higher than VEN,H. This can be e.g. the battery voltage, whereby no
additional pull-up resistor is needed. The regulator can be turned off by connecting the pin EN to a voltage less
than VEN,L, e.g. GND.
Electrical Characteristics Enable
V_I =13.5 V; T_j = -40 °C to 150 °C; all voltages with respect to ground, positive current flowing into pin
(unless otherwise specified)
Pos. Parameter
Symbol Limit Values Unit Measuring Condition
Min. Typ. Max.
5.3.13
5.3.14
5.3.15
High Level Input Voltage
Low Level Input Voltage
High Level Input Current
V_EN,H
V_EN,L
I_EN,H
3.1 –
–
–
–
3
–
V
0.8 V
4
µA
V_Q ≥ 4.9 V
V_Q ≤ 0.3 V
V_EN = 5 V
5.4
Typical Performance Characteristics Enable Function
Enabled Input Current I_EN versus
Input Voltage V_I , EN=Off
25_IINH vs VIN INH_off.vsd
I_EN
[µA]
1.0
EN = OFF
0.8
T_j = 150°C
T_j = 25°C
T_j = -40°C
0.6
Enabled Input Current I_EN versus
Enabled Input Voltage V_EN
I_EN
[µA]
50
24_IINH vs VINH.vsd
T_j = 150°C
T_j = 25°C
40
T_j = -40°C
30
0.4
20
0.2
10
10
20
30
40
V_IN [V]
10
20
30
40
V_EN [V]
Data Sheet
15
Rev. 1.0, 2009-06-01