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MAX15011ATJ+

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24
MAX15009/MAX15011
Automotive 300mA LDO Regulators with
Switched Output and Overvoltage Protector
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= +14V, V
SGND
= V
PGND
= 0V, C
GATE
= 6000pF, C
IN
= 10µF (ESR < 1.5Ω), C
OUT_LDO
= 22µF (ceramic), C
OUT_SW
= 1µF,
V
OUT_LDO
= 5V, C
T
= open, T
A
= T
J
= -40°C to +125°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
OUT_LDO Overvoltage
Protection Threshold
V
OV_TH
1mA sink from OUT_LDO 105 110 %V
OUT_LDO
OUT_LDO Overvoltage
Protection Sink Current
I
OV
V
OUT_LDO
= V
OUT
(nominal) x 1.15 8 19 mA
ENABLE/HOLD INPUTS
V
IH
2
EN_LDO to EN_PROT Input
Threshold Voltage
V
IL
0.7
V
E N _LD O, E N _P ROT, E N _S W
Input Pulldown Current
I
EN_PD
EN_ is internally pulled low to SGND 1 µA
V
IH
1.4
HOLD Input Threshold
Voltage
V
IL
0.4
V
HOLD Input Pullup I
HOLD_PU
HOLD is internally pulled high to
OUT_LDO
0.6 µA
RESET
RESET goes HIGH when rising
V
OUT_LDO
crosses this threshold,
FB_LDO = SGND
90.0 92.5 95.0 %V
OUT_LDO
RESET Voltage Threshold
HIGH
V
R ESET_H
RESET goes HIGH when rising
V
FB_LDO
crosses this threshold
90.0 92.5 95.0 %V
FB_LDO
RESET goes LOW when falling
V
OUT_LDO
crosses this threshold,
FB_LDO = SGND
88 90 92 %V
OUT_LDO
RESET Voltage Threshold
LOW
V
RESET_L
RESET goes LOW when falling
V
FB_LDO
crosses this threshold
88 90 92 %V
FB_LDO
V
OUT_LDO
to RESET Delay t
RESET_FALL
V
OUT_LDO
falling, 0.1V/µs 19 µs
CT Ramp Current I
CT
V
CT
= 0V 1.50 2 2.35 µA
CT Ramp Threshold V
CT_TH
V
CT
rising 1.190 1.235 1.270 V
RESET Output-Voltage Low V
OL
I
SINK
= 1mA, output asserted 0.1 V
RESET Open-Drain
Leakage Current
I
LEAK_RESET
Output not asserted 150 nA
LOAD DUMP PROTECTOR (MAX15009 only)
FB_PROT Threshold
Voltage
V
TH_PROT
FB_PROT rising 1.20 1.235 1.27 V
FB_PROT Threshold
Hysteresis
V
HYST
4%V
TH_PROT
FB_PROT Input Current I
FB_PROT
V
FB_PROT
= 1.4V -100 +100 nA
Startup Response Time t
START
EN_PROT rising, EN_LDO = IN, to
V
GATE
= 0.5V
20 µs
GATE Rise Time t
GATE
GATE rising to +8V, V
SOURCE
= 0V 1 ms
MAX15009/MAX15011
Automotive 300mA LDO Regulators with
Switched Output and Overvoltage Protector
_______________________________________________________________________________________ 5
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= +14V, V
SGND
= V
PGND
= 0V, C
GATE
= 6000pF, C
IN
= 10µF (ESR < 1.5Ω), C
OUT_LDO
= 22µF (ceramic), C
OUT_SW
= 1µF,
V
OUT_LDO
= 5V, C
T
= open, T
A
= T
J
= -40°C to +125°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
FB_PROT to GATE Turn-Off
Propagation Delay
t
OV
FB_PROT rising from V
TH_PROT
-
250mV to V
TH_PROT
+ 250mV
0.6 µs
V
SOURCE
= V
IN
= 5.5V,
R
GATE
to IN = 1MΩ
V
IN
+
3.2
V
IN
+
3.5
V
IN
+
3.8
GATE Output High Voltage V
GATE
- V
IN
V
SOURCE
= V
IN
; V
IN
≥ 14V,
R
GATE
to IN = 1MΩ
V
IN
+
7.0
V
IN
+
8.1
V
IN
+
9.5
V
GATE Output Pulldown
Current
I
GATEPD
V
GATE
= 5V, V
EN_PROT
= 0V 63 100 mA
GATE Charge-Pump
Current
I
GATE
GATE = SGND 45 µA
GATE-to-SOURCE Clamp
Voltage
V
CLMP
12 16 18 V
SWITCH
Switch Dropout ΔV
SW
ΔV
SW
= V
OUT_LDO
- V
OUT_SW
,
I
OUT_SW
= 100mA, V
OUT_LDO
= 5V,
no external MOSFET
36 70 mV
ILIM = OUT_LDO, V
IN
= 8V 170 200 240
R
LIM
= 100kΩ to SGND,
V
OUT_LDO
= 5V, V
IN
= 8V
85 100 120
Switch Current Limit I
SW_LIM
R
LIM
= 39kΩ to SGND,
V
OUT_LDO
= 5V, V
IN
= 8V
30 40 50
mA
Current-Limit Selector ILIM
Voltage
V
ILIM
R
LIM
= 100kΩ
0.395 V
OC_DELAY Timeout
Threshold
V
OC_DELAY
1.194 1.235 1.270 V
OC_DELAY Timeout Pullup
Current
I
OC_DELAY_UP
V
OC_DELAY
= 0.5V rising
12.5 16.0 21.3 µA
OC_DELAY Timeout
Pulldown Current
I
OC_DELAY_DOWN
V
OC_DELAY
= 0.5V, falling
0.75 1.00 1.40 µA
Minimum OC_DELAY
Timeout
t
OC_DELAY_MIN
C
OC_DELAY
is unconnected
12 µs
EN_SW to OUT_SW
Turn-On Time
OUT_SW rising to +0.5V,
R
OUT_SW
= 1kΩ
38 µs
EN_SW to OUT_SW
Turn-Off Propagation Delay
t
OV_SW
EN_SW falling, V
OUT_LDO
- V
OUT_SW
rising to +1V, R
OUT_SW
= 1kΩ,
V
OUT_LDO
= 5V
18 µs
Note 1: Specifications to -40°C are guaranteed by design and not production tested.
Note 2: 1.8V is the minimum limit for proper HOLD functionality.
Note 3: Dropout is defined as V
IN
- V
OUT_LDO
when V
OUT_LDO
is 98% of the value of V
OUT_LDO
for V
IN
= V
OUT_LDO
+ 1.5V.
Note 4: Maximum output current may be limited by the power dissipation of the package.
MAX15009/MAX15011
Automotive 300mA LDO Regulators with
Switched Output and Overvoltage Protector
6 _______________________________________________________________________________________
Typical Operating Characteristics
(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.)
LDO LOAD-TRANSIENT RESPONSE
MAX15009 toc09
400μs/div
I
OUT_LDO
100mA/div
0A
V
OUT_LDO
5V, AC-COUPLED
100mV/div
LDO LOAD-TRANSIENT RESPONSE
MAX15009 toc08
2ms/div
V
OUT_LDO
5V, AC-COUPLED
20mV/div
I
OUT_LDO
100mA/div
0A
LDO OUTPUT VOLTAGE
vs. INPUT VOLTAGE
MAX15009 toc07
V
IN
(V)
025155352010 30 40
6
5
4
3
2
1
0
V
OUT_LDO
(V)
I
OUT_LDO
= 10mA
I
OUT_LDO
= 300mA
(PULSED)
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24

MAX15011ATJ+

Mfr. #:
Buy MAX15011ATJ+
Manufacturer:
Maxim Integrated
Description:
LDO Voltage Regulators Automotive 300mA w/Switched Output
Lifecycle:
New from this manufacturer.
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