TLE 4251
Electrical Characteristics (cont’d)
VI = 13.5 V; 2.5 V ≤ VADJ ≤ VI – 0.5 V; – 40 °C < Tj < 150 °C; unless otherwise specified
Parameter
Symbol Limit Values Unit Test Condition
min. typ. max.
Quiescent current
(stand-by)
Iq = II – IQ
Iq
–
0
10 µA VEN = 0 V
Tj < 85 °C
Regulator Performance
Load regulation
∆VQ
Line regulation
∆VQ
Power-Supply-Ripple-
Rejection
PSRR
– 35 ± 5 35
– 25 ± 10 25
60 –
–
mV 5 mA < IQ < 300 mA;
VI = 6 V, VADJ = 5 V
mV 12 V < VI < 32 V
IQ = 5 mA
dB fr = 100 Hz;
Vr = 5 VPP
Adjust Input
Input biasing current
IADJ
–
0.1 0.5 µA VADJ = 5 V
Enable
Enable on voltage range VEN ON 2
Enable off voltage range VEN OFF –
Input current
IEN
5
–
–
V VQ ON
–
0.5 V VQ ≤ 0.1 V
40 70 µA VEN = 5 V
1) Measured when the output voltage VQ has dropped 100 mV from the nominal value.
Data Sheet Rev. 2.4
6
2001-05-07