User Manual

MAX15009/MAX15011
Automotive 300mA LDO Regulators with
Switched Output and Overvoltage Protector
_______________________________________________________________________________________ 3
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Thermal-Shutdown
Temperature
T
SHDN
+160 °C
Thermal Hysteresis T
HYST
20 °C
LDO
I
LOAD
= 1mA, FB_LDO = SGND 4.92 5.00 5.09
Output Voltage V
OUT_LDO I
LOAD
= 300mA, V
IN
= 8V,
FB_LDO = SGND
4.88 5.00 5.11
V
FB_LDO Set-Point Voltage V
FB_LDO
With respect to SGND, I
LOAD
= 1mA,
V
OUT_LDO
= 5V, adjustable output option
1.21 1.235 1.26 V
FB_LDO rising 0.125
Dual Mode™ FB_LDO
Threshold
V
FB_LDO_TH
FB_LDO falling 0.064
V
FB_LDO Input Current I
FB_LDO
V
FB_LDO
= 1V -100 +100 nA
LDO Output Voltage V
LDO_ADJ
Adjustable output option (Note 2) 1.8 11.0 V
I
LOAD
= 300mA (Note 3) 800 1500
LDO Dropout Voltage V
DO
I
LOAD
= 200mA (Note 3) 520 1000
mV
LDO Output Current I
OUT_LDO
(Note 4) 300 mA
LDO Output Current Limit I
LIM_LDO
OUT_LDO = SGND, V
IN
= 6V 330 500 700 mA
6V ≤ V
IN
≤ 40V, I
LOAD
= 1mA,
V
OUT_LDO
= 5V
0.03 0.2
6V ≤ V
IN
≤ 40V, I
LOAD
= 1mA,
FB_LDO = SGND, V
OUT_LDO
= 3.3V
0.03 0.1
6V ≤ V
IN
≤ 40V, I
LOAD
= 20mA,
FB_LDO = SGND, V
OUT_LDO
= 5V
0.27 1
OUT_LDO Line Regulation
ΔV
OUT
/
ΔV
IN
6V ≤ V
IN
≤ 40V, I
LOAD
= 20mA,
V
OUT_LDO
= 3.3V
0.27 0.5
mV/V
1mA to 300mA, V
IN
= 8V,
FB_LDO = SGND
0.054 0.15
OUT_LDO Load Regulation
ΔV
OUT
/
ΔI
OUT
1mA to 300mA, V
IN
= 6.3V,
V
OUT_LDO
= 3.3V
0.038 0.100
mV/mA
OUT_LDO Power-Supply
Rejection Ratio
PSRR
I
LOAD
= 10mA, f = 100Hz, 500mV
P-P
,
V
OUT_LDO
= 5V
60 dB
OUT_LDO Startup Delay
Time
t
STARTUP_DELAY
I
OUT_LDO
= 0mA, from EN_LDO rising to
10% of V
OUT_LDO
(nominal),
FB_LDO = SGND
30 µs
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)
Dual Mode is a trademark of Maxim Integrated Products, Inc.