LP2985_15 Datasheet, PDF (7/29 Pages) Texas Instruments – 150-mA Low-noise Low-dropout Regulator With Shutdown

LP2985
www.ti.com
SLVS522O – JULY 2004 – REVISED JANUARY 2015
6.6 Typical Characteristics
C_IN = 1 μF, C_OUT = 4.7 μF, V_IN = V_OUT(NOM) + 1 V, T_A = 25°C, ON/OFF pin tied to V_IN (unless otherwise specified)
10.20
10.15
10.10
V_I = 11 V
V_O = 10 V
C_I = 1 µF
C_O = 4.7 µF
I_O = 1 mA
10.05
10.00
9.95
9.90
9.85
-50 -25 0
25 50 75 100 125 150
Temperature – °C
Figure 1. Output Voltage vs Temperature
0.45
0.4
V_O = 3.3 V
C_byp = 10 nF
150 mA
0.35
0.3
0.25
0.2
0.15
50 mA
0.1
0.05
0
−50 −25
0 25 50 75
Temperature − (°C)
10 mA
1 mA
100 125 150
Figure 3. Dropout Voltage vs Temperature
0.5
0.45
0.4
V_I = 16 V
V_O = 3.3 V
C_i = 1 mF
C_byp = 0.01 mF
0.35
0.3
0.25
0.2
0.15
0.1
0.05
0
−100
100
300
500
700
Time − (ms)
Figure 5. Short-circuit Current vs Time
3.345
3.335
V_I = 4.3 V
V_O = 3.3 V
C_i = 1 mF
C_o = 4.7 mF
I_O = 1 mA
3.325
3.315
3.305
3.295
−50 −25 ₀
25 50 75 100 125 150
Temperature − (°C)
Figure 2. Output Voltage vs Temperature
0.5
0.45
0.4
0.35
V_I = 6 V
V_O = 3.3 V
C_i = 1 mF
C_byp = 0.01 mF
0.3
0.25
0.2
0.15
0.1
0.05
0
−500
0
500
1000
Time − (ms)
1500
2000
Figure 4. Short-circuit Current vs Time
320
V_O = 3.3 V
300
280
260
240
220
200
0
0.5
1
1.5
2
2.5
3 3.5
Output Voltage − (V)
Figure 6. Short-circuit Current vs Output Voltage
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