TLE4254 Datasheet, PDF (9/21 Pages) Infineon Technologies AG – High Accuracy Low Dropout Voltage Tracking Regulator

TLE4254
Electrical Characteristics
Table 1 Electrical Characteristics Tracking Regulator
V_I = 13.5 V; V_ADJ/EN ≥ 2.0 V; V_FB = V_Q (version GA / EJ A); -40 °C ≤ T_j ≤ 150 °C; C_Q = 1 µF;
all voltages with respect to ground (unless otherwise specified).
Pos. Parameter
Symbol
Limit Values
Unit Test Condition
Min. Typ. Max.
5.1.6 Power Supply Ripple
Rejection
PSRR 60 –
–
dB f_ripple = 100 Hz;
V_ripple = 1 Vpp
I_Q = 5 mA
C_Q = 10 µF, ceramic type ¹⁾
5.1.7 Dropout Voltage
V_dr = V_I - V_Q
V_dr
–
200 400 mV I_Q = 70 mA ²⁾
5.1.8 Output Current Limitation I_Q,max
71
100 150 mA V_Q = (V_ADJ/EN - 0.1 V);
V_ADJ/EN = 5 V
5.1.9 Reverse Current
I_Q
-4
-2
–
mA V_I = 0 V;
V_Q = 32 V;
V_ADJ/EN = 5 V
5.1.10 Reverse Current
I_I
at Negative Input Voltage
-5
-3
–
mA V_I = -16 V;
V_Q = 0 V;
V_ADJ/EN = 5 V
Feedback Input FB (version GA / EJ A only):
5.1.11 Feedback Input Biasing
I_FB
–
Current
0.1 0.5 µA V_FB = 5 V
Overtemperature Protection:
5.1.12 Junction Temperature
Equilibrium
T_j,eq
151 –
200 °C T_j increasing due to power
dissipation generated
by the IC ¹⁾
1) Parameter not subject to production test; specified by design.
2) Measured when the output voltage V_Q has dropped 100 mV from its nominal value.
Data Sheet
9
Rev. 1.2, 2009-11-18