Typical operating characteristics (continued) – Rainbow Electronics MAX15011 User Manual
Page 8
MAX15009/MAX15011
Automotive 300mA LDO Regulators with
Switched Output and Overvoltage Protector
8
_______________________________________________________________________________________
STARTUP RESPONSE THROUGH EN
MAX15008 toc18
20ms/div
I
OUT_LDO
= 100mA
I
OUT_SW
= 70mA
V
EN_LDO
= VEN_SW
V
IN
V
EN_LDO
5V/div
V
RESET
5V/div
V
OUT_LDO
5V/div
0V
0V
0V
0V
14V
V
OUT_SW
5V/div
SHUTDOWN RESPONSE THROUGH V
IN
MAX15008 toc19
2ms/div
I
OUT_LDO
= 100mA
I
OUT_SW
= 70mA
EN_LDO = VEN_SW = IN
V
IN
10V/div
V
RESET
5V/div
V
OUT_SW
5V/div
V
OUT_LDO
5V/div
0V
0V
0V
0V
PROTECTOR STARTUP RESPONSE
MAX15009 toc25
10ms/div
V
IN
10V/div
V
GATE
10V/div
V
OUT_PROT
10V/div
I
OUT_PROT
= 1A
0V
0V
0V
SHUTDOWN RESPONSE THROUGH EN
MAX15008 toc20
I
OUT_LDO
= 100mA
I
OUT_SW
= 70mA
EN_LDO = EN_SW
V
OUT_SW
5V/div
V
OUT_LDO
5V/div
V
RESET
5V/div
V
IN
20V/div
6V
0V
0V
0V
0V
V
EN_LDO
5V/div
LDO, EN_LDO, AND HOLD TIMING
MAX15009 toc21
200ms/div
V
EN_LDO
5V/div
V
OUT_LDO
5V/div
HOLD
5V/div
RESET
5V/div
0V
0V
0V
0V
HOLD PULLED UP
TO OUT_LDO
GROUND CURRENT DISTRIBUTION
HISTOGRAM (T
A
= -40
°C)
MAX15009 toc22
GROUND CURRENT (
μA)
79
81
77
75
73
71
69
67
70
50
30
10
60
40
20
0
NUMBER OF PARTS
Typical Operating Characteristics (continued)
(V
IN
= V
EN_LDO
= V
EN_PROT
= V
EN_SW
= +14V, C
IN
= 10µF, C
OUT_LDO
= 22µF, C
OUT_SW
= 1µF, V
OUT_LDO
= +5V, FB_LDO = SGND,
T
A
= +25°C, unless otherwise specified.)
PROTECTOR GATE VOLTAGE
vs. INPUT VOLTAGE (MAX15009 ONLY)
MAX15009 toc24
V
IN
(V)
20
25
15
30
40
10
35
5
0
50
40
30
20
45
35
25
10
0
15
5
GATE VOLTAGE (V)
V
GATE
V
IN
GROUND CURRENT DISTRIBUTION
HISTOGRAM (T
A
= +125
°C)
MAX15009 toc23
GROUND CURRENT (
μA)
67 69 71
65
63
61
57 59
55
53
51
90
40
30
20
10
80
70
60
50
0
NUMBER OF PARTS