TLE 4253GS Infineon Technologies, TLE 4253GS Datasheet - Page 15

• Manufacturer Part Number: TLE 4253GS
• Manufacturer: Infineon Technologies

Specifications of TLE 4253GS

• Packages: PG-DSO-8
• Regulator Type: tracker
• Output Voltage: adj.
• Accuracy: 0.5 %
• Max. Output Current: 250mA
• Dropout Voltage: 280mV

5.3
In order to reduce the quiescent current to a minimum, the TLE4253 can be switched to stand-by mode by setting
the adjust/enable input “ADJ/EN” to “low”.
In case the pin “ADJ/EN is left open, an internal pull-down resistor keeps the voltage at the pin low and therefore
ensures that the regulator is switched off.
Table 3
V
all voltages with respect to ground (unless otherwise specified).
Pos.
5.3.1
5.3.2
5.3.3
5.3.4
Typical Performance Characteristics Tracking Regulator
V
Data Sheet
Startup Sequence
I
ADJ/EN
= 13.5 V;
V
[V]
= 5 V;
Parameter
Adjust / Enable
Low Signal Valid
Adjust / Enable
High Signal Valid
(Tracking Region)
Adjust / Enable
Input Current
Adjust / Enable
internal pull-down resistor
4
3
2
1
V
Adjust / Enable Input
Electrical Characteristics Adjust / Enable
ADJ/EN
V
0
FB
=
20
V
≥ 2.0 V;
ADJ
V
Q
Overshoot depends on
load current, C
40
(unless otherwise noted)
60 80
V
FB
Q
=
d
(
, ESR (C
I
V
Q,max
V
Q
100
Q
/ d
; -40 °C ≤
Symbol
V
V
I
R
Q
-
ADJ/EN
)
I
ADJ/EN,low
ADJ/EN,high
ADJ/EN
t
120 140
Load
=
4253_startup.vsd
) /
t
[µs]
C
Q
T
j
Min.
–
2
–
1
≤ 150 °C;
Limit Values
15
Typ.
–
–
3.8
1.5
Max.
0.4
–
5.5
2
Unit
V
V
µA
MΩ
Test Condition
V
I
T
V
|
I
V
V
I
Q
j
Q
Q
ADJ/EN
< 2 µA;
Q
≤ 85 °C
= 10 mA
= 0 V;
settled:
-
V
Electrical Characteristics
ADJ/EN
= 5 V;
Rev. 1.2, 2009-11-09
| < 10 mV;
TLE4253