MAX8930 查看數據表（PDF） - Maxim Integrated
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MAX8930 Datasheet PDF : 52 Pages
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WLED Charge Pump, RGB, OLED Boost,
LDOs with ALC and CAI
LDO3 CHARACTERISTICS
PARAMETER
Input Operating Range
Output Voltage VLDO3
CONDITIONS
VPV4
200mA at VPV4 = 2.4V
Programmable Output Voltage
VPV4 = 1.8V, ILDO3 = 50mA
VPV4 = 3.7V, ILDO3 = 50mA
Output Current
Current Limit
Dropout Voltage
Line Regulation
Load Regulation
Power-Supply Rejection
DVLDO3/DVPV4
Output Noise Voltage (RMS)
Minimum Output Capacitor
Startup Time from Shutdown
Startup Transient Overshoot
Shutdown Output Impedance
VLDO3 = 90% of nominal regulation voltage (Note 4)
ILDO3 = 200mA, TA = +25NC
2.4V P VPV4 P 5.5V, ILDO3 = 150mA
1mA < ILDO3 < 200mA
f = 10Hz to 10kHz, ILDO3 = 10mA, CLDO3 = 2.2FF
f = 100Hz to 100kHz, ILDO3 = 10mA, CLDO3 = 2.2FF
0FA < I LDO3 < 200mA (Note 3)
ILDO3 = 150mA (Note 3)
ILDO3 = 150mA (Note 3)
LDO3 disabled through I2C (default on)
MIN
1.7
1.764
1.164
1.455
1.764
2.425
250
2.2
TYP MAX UNITS
5.5
V
1.80 1.854
V
1.2 1.236
1.5 1.545
V
1.80 1.854
2.5 2.575
200
mA
475 750
mA
120 300
mV
2.4
mV
25
mV
60
dB
75
FVRMS
FF
100 250
Fs
3
50
mV
1
kI
STEP-UP CONVERTER CHARACTERISTICS
PARAMETER
Input Operating Range
Line Regulation
Load Regulation
LX Voltage Range
LX Switch Current Limit
LX Leakage Current
Isolation pMOS RDS(ON)
pMOS Rectifier RDS(ON)
Isolation pMOS Current Limit
Isolation pMOS Leakage Current
SW Soft-Start Time
nMOS RDS(ON)
Maximum LX On-Time
Minimum LX Off-Time
OVP Threshold
OVP Threshold Hysteresis
CONDITIONS
VPV5
VOUT = 14V, IOUT = 5mA, VPV5 = 2.7V to 5.5V
VOUT = 14V, IOUT = 0mA to 5mA, VPV5 = 3.7V
VLX = 20V, step-up
converter disabled
TA = +25NC
TA = +85NC
VPV5 = 2.7V, ISW = 100mA
LX to OUT, VPV5 = 3.7V, ILX = 100mA
VPV5 = 3.7V, VSW = 0V
SW = PGND3,
TA = +25NC
VPV5 = 5.5V
TA = +85NC
VPV5 = 2.7V
VPV5 = 3.7V, ILX = 100mA
VOUT > 12V
No feedback, VOUT rising
MIN TYP MAX UNITS
2.7
5.5
V
0.1
%/V
0.1
%/mA
20
V
192 241 289
mA
0.01
2
FA
0.1
1.5
2.4
I
4.0
I
0.15 0.3
0.6
A
0.01
1
FA
0.1
0.2
ms
0.9
1.5
I
8
11
14
Fs
1.6
2
2.4
Fs
17.6 18.5 19.4
V
1
V
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