TLE4253 Datasheet, PDF (10/22 Pages) Infineon Technologies AG – Low Dropout Voltage Tracking Regulator

TLE4253
Electrical Characteristics
Typical Performance Characteristics Tracking Regulator
V_ADJ/EN = 5 V; V_FB = V_Q (unless otherwise noted)
Output Capacitor Series Resistor ESR_CQ vs.
Output Current I_Q
10
E S R-IQ_10u.vsd
ESR _CQ
[Ω]
Output Capacitor Series Resistor ESR_CQ vs.
Output Current I_Q
10
E S R-IQ_6u8.vsd
ESR _CQ
[Ω]
1
Stable
Region
1
Stable
Region
0.1
C_Q = 10 µF
6 V < V_I < 28 V
-40 °C < T_j < 150 °C
0.01
0
50
100 150 200
I_Q [mA]
Power Supply
Ripple Rejection PSRR
90
P S RR.vsd
PSRR
[dB]
I = 1 mA
Q
70
0.1
C_Q = 6.8 µF
6 V < V_I < 28 V
-40 °C < T_j < 150 °C
0.01
0
50
100
Line Regulation dV_Q,line vs.
Input Voltage Change dV_I
2
∆V_Q [mV]
V_I,initial = 6 V
V_ADJ = 5 V
150 200
I_Q [mA]
dV Q-dV I.vsd
I_Q = 10 mA
0
60
50
I_Q = 100 mA
V_RIPPLE = 1 V
40 ^{VIN = 13.5 V}
C_Q = 10 µF Ceramic
T = 25 °C
j
0.01
0.1
1
10
100
f [kHz]
-1
-2
I_Q = 100 mA
-3
steady-state condition
0
0 5 10 15 20 25 30 35
∆V_I [V]
Data Sheet
10
Rev. 1.2, 2009-11-09