MAX15008 Datasheet, PDF (7/23 Pages) Maxim Integrated Products – Automotive 300mA LDO Voltage Regulators with Tracker Output and Overvoltage Protector

Automotive 300mA LDO Voltage Regulators
with Tracker Output and Overvoltage Protector
Typical Operating Characteristics (continued)
(V_IN = V_{EN_} = +14V, C_IN = 10µF, C_{OUT_LDO} = 22µF, C_TRACK = C_{OUT_TRK} = 10µF, V_{OUT_LDO} = 5V, FB_LDO = SGND, T_A = +25°C,
unless otherwise specified.)
LDO LOAD-TRANSIENT RESPONSE
MAX15008 toc09
I_{OUT_LDO}
100mA/div
0A
LDO LOAD-TRANSIENT RESPONSE
MAX15008 toc10
I_{OUT_LDO}
100mA/div
0A
LDO OUTPUT VOLTAGE
vs. TEMPERATURE
5.10
5.05 IOUT_LDO = 100μA
I_{OUT_LDO} = 10mA
5.00
4.95
2ms/div
V_{OUT_LDO}
5V, AC-COUPLED
20mV/div
400μs/div
V_{OUT_LDO}
5V, AC-COUPLED
100mV/div
4.90 I_{OUT_LDO} = 100mA
I_{OUT_LDO} = 300mA
4.85
V_IN = 8V
4.80
-50 -25 0 25 50 75 100 125 150
TEMPERATURE (°C)
TRACKER LOAD-TRANSIENT RESPONSE
MAX15008 toc12
TRACKER ACCURACY
vs. LOAD CURRENT
0
TRACKER ACCURACY (V_{FB_TRK} = V_ADJ)
vs. TEMPERATURE
3
400μs/div
I_{OUT_TRK}
-0.5
50mA/div
0A
-1.0
-1.5
-2.0
V_{OUT_TRK}
5V, AC-COUPLED
20mV/div
-2.5
-3.0
0
ADJ = OUT_LDO
FB_TRK = OUT_TRK
10 20 30 40 50 60 70
I_{OUT_TRK} (mA)
2
1
I_{OUT_TRK} = 100μA
0
-1
-2
I_{OUT_TRK} = 1mA
-3
I_{OUT_TRK} = 70mA
-4
-75 -50 -25 0 25 50 75 100 125 150
TEMPERATURE (°C)
V_IN
20V/div
V_{OUT_LDO}
3.3V, AC-COUPLED
50mV/div
V_{OUT_TRK}
3.3V, AC-COUPLED
50mV/div
V_{OUT_PROT}
20V/div
LINE-TRANSIENT RESPONSE
MAX15008 toc15
0V
0V
40ms/div
V_IN
10V/div
V_{OUT_LDO}
3.3V, AC-COUPLED
20mV/div
V_{OUT_TRK}
3.3V, AC-COUPLED
20mV/div
V_{OUT_PROT}
10V/div
LINE-TRANSIENT RESPONSE
MAX15008 toc16
0V
0V
40ms/div
_______________________________________________________________________________________ 7