TLE4470 Datasheet, PDF (10/22 Pages) Siemens Semiconductor Group – Dual Low-Drop Voltage Regulator

TLE 4470
Electrical Characteristics (cont’d)
V_I1 = V_I2 = 14 V; V_DIS < V_DISL; – 40 °C < T_j < 150 °C; unless otherwise specified
Parameter
Symbol Limit Values Unit Test Condition
min. typ. max.
Main-Regulator
Output 2
Output voltage
tracking accuracy
Output voltage
tracking accuracy
V_Q2 – V_Q1 – 25 5
V_Q2 – V_Q1 – 25 5
25 mV 5 mA < I_Q2 < 100 mA;
6 V < V_I2 < 40 V
25 mV 5 mA < I_Q2 < 250 mA;
7 V < V_I2 < 28 V
see note 2
Adjust input current I_ADJ2
Output current
I_Q2
limitation
–1 – 1
350 500 –
µA –
mA see note 1
Output drop voltage V_DRQ2 –
V_DRQ2 = V_I2 – V_Q2
300 600 mV I_Q2 = 200 mA; see note 1
Current Consumption
Quiescent current; I_q
I_q = I_I – I_Q
Quiescent current; I_q
I_q = I_I – I_Q
–
7
15 mA I_Q2 = 200 mA
I_Q1 = 300 µA
–
250 500 µA I_Q2 = I_Q1 = 300 µA;
T_j = 25 °C
Regulator Performance
Load regulation
Line regulation
∆V_Q2
–
5
∆V_Q2
–
5
Power-Supply-Ripple- PSRR – 60
Rejection
Temperature output ∆V_Q2/∆T –
0.5
voltage drift
dV_I2/dt stability
Value of output
capacitance
V_Q2
4.5 –
C_Q2
10 –
25 mV 5 mA < I_Q2 < 200 mA;
20 mV I_Q2 = 5 mA;
6 V < V_I2 < 28 V
– dB 20 Hz < f_r < 20 kHz;
V_r = 5 Vss
– mV/K –
5.5 V
– µF
no reset occurs; note 2
–
Semiconductor Group
10
1998-11-01