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MAX8930
WLED Charge Pump, RGB, OLED Boost,
LDOs with ALC and CAI
LDO3 CHARACTERISTICS
PARAMETER
Input Operating Range
Output Voltage V LDO3
Programmable Output Voltage
CONDITIONS
V PV4
200mA at V PV4 = 2.4V
V PV4 = 1.8V, I LDO3 = 50mA
V PV4 = 3.7V, I LDO3 = 50mA
MIN
1.7
1.764
1.164
1.455
1.764
2.425
TYP
1.80
1.2
1.5
1.80
2.5
MAX
5.5
1.854
1.236
1.545
1.854
2.575
UNITS
V
V
V
Output Current
200
mA
Current Limit
Dropout Voltage
V LDO3 = 90% of nominal regulation voltage (Note 4)
I LDO3 = 200mA, T A = +25 N C
250
475
120
750
300
mA
mV
Line Regulation
Load Regulation
Power-Supply Rejection
D V LDO3 / D V PV4
Output Noise Voltage (RMS)
Minimum Output Capacitor
2.4V P V PV4 P 5.5V, I LDO3 = 150mA
1mA < I LDO3 < 200mA
f = 10Hz to 10kHz, I LDO3 = 10mA, C LDO3 = 2.2 F F
f = 100Hz to 100kHz, I LDO3 = 10mA, C LDO3 = 2.2 F F
0 F A < I LDO3 < 200mA (Note 3)
2.2
2.4
25
60
75
mV
mV
dB
F V RMS
F F
Startup Time from Shutdown
Startup Transient Overshoot
Shutdown Output Impedance
I LDO3 = 150mA (Note 3)
I LDO3 = 150mA (Note 3)
LDO3 disabled through I 2 C (default on)
100
3
1
250
50
F s
mV
k I
STEP-UP CONVERTER CHARACTERISTIC S
PARAMETER
Input Operating Range
Line Regulation
Load Regulation
CONDITIONS
V PV5
V OUT = 14V, I OUT = 5mA, V PV5 = 2.7V to 5.5V
V OUT = 14V, I OUT = 0mA to 5mA, V PV5 = 3.7V
MIN
2.7
TYP
0.1
0.1
MAX
5.5
UNITS
V
%/V
%/mA
LX Voltage Range
20
V
LX Switch Current Limit
192
241
289
mA
LX Leakage Current
Isolation pMOS R DS(ON)
V LX = 20V, step-up
converter disabled
V PV5 = 2.7V, I SW = 100mA
T A = +25 N C
T A = +85 N C
0.01
0.1
1.5
2
2.4
F A
I
pMOS Rectifier R DS(ON)
LX to OUT, V PV5 = 3.7V, I LX = 100mA
4.0
I
Isolation pMOS Current Limit
Isolation pMOS Leakage Current
SW Soft-Start Time
V PV5 = 3.7V, V SW = 0V
SW = PGND3,
V PV5 = 5.5V
V PV5 = 2.7V
T A = +25 N C
T A = +85 N C
0.15
0.3
0.01
0.1
0.2
0.6
1
A
F A
ms
nMOS R DS(ON)
Maximum LX On-Time
V PV5 = 3.7V, I LX = 100mA
8
0.9
11
1.5
14
I
F s
Minimum LX Off-Time
OVP Threshold
V OUT > 12V
No feedback, V OUT rising
1.6
17.6
2
18.5
2.4
19.4
F s
V
OVP Threshold Hysteresis
6
1
V
Maxim Integrated
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