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MAX15009 Datasheet(PDF) 4 Page - Maxim Integrated Products

Part No. MAX15009
Description  Automotive 300mA LDO Regulators with Switched Output and Overvoltage Protector
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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MAX15009 Datasheet(HTML) 4 Page - Maxim Integrated Products

 
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Automotive 300mA LDO Regulators with
Switched Output and Overvoltage Protector
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(VIN = +14V, VSGND = VPGND = 0V, CGATE = 6000pF, CIN = 10µF (ESR < 1.5Ω), COUT_LDO = 22µF (ceramic), COUT_SW = 1µF,
VOUT_LDO = 5V, CT = open, TA = TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OUT_LDO Overvoltage
Protection Threshold
VOV_TH
1mA sink from OUT_LDO
105
110
%VOUT_LDO
OUT_LDO Overvoltage
Protection Sink Current
IOV
VOUT_LDO = VOUT (nominal) x 1.15
8
19
mA
ENABLE/
HOLD INPUTS
VIH
2
EN_LDO to EN_PROT Input
Threshold Voltage
VIL
0.7
V
EN_LDO, EN_PROT, EN_SW
Input Pulldown Current
IEN_PD
EN_ is internally pulled low to SGND
1
µA
VIH
1.4
HOLD Input Threshold
Voltage
VIL
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
VOUT_LDO crosses this threshold,
FB_LDO = SGND
90.0
92.5
95.0
%VOUT_LDO
RESET Voltage Threshold
HIGH
V
RESET_H
RESET goes HIGH when rising
VFB_LDO crosses this threshold
90.0
92.5
95.0
%VFB_LDO
RESET goes LOW when falling
VOUT_LDO crosses this threshold,
FB_LDO = SGND
88
90
92
%VOUT_LDO
RESET Voltage Threshold
LOW
V
RESET_L
RESET goes LOW when falling
VFB_LDO crosses this threshold
88
90
92
%VFB_LDO
VOUT_LDO to RESET Delay
tRESET_FALL
VOUT_LDO falling, 0.1V/µs
19
µs
CT Ramp Current
ICT
VCT = 0V
1.50
2
2.35
µA
CT Ramp Threshold
VCT_TH
VCT rising
1.190
1.235
1.270
V
RESET Output-Voltage Low
VOL
ISINK = 1mA, output asserted
0.1
V
RESET Open-Drain
Leakage Current
ILEAK_RESET
Output not asserted
150
nA
LOAD DUMP PROTECTOR (MAX15009 only)
FB_PROT Threshold
Voltage
VTH_PROT
FB_PROT rising
1.20
1.235
1.27
V
FB_PROT Threshold
Hysteresis
VHYST
4%VTH_PROT
FB_PROT Input Current
IFB_PROT
VFB_PROT = 1.4V
-100
+100
nA
Startup Response Time
tSTART
EN_PROT rising, EN_LDO = IN, to
VGATE = 0.5V
20
µs
GATE Rise Time
tGATE
GATE rising to +8V, VSOURCE = 0V
1
ms


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