LT3050MPMSE-3.3 查看數據表（PDF） - Linear Technology
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LT3050MPMSE-3.3
Linear Technology
LT3050MPMSE-3.3 Datasheet PDF : 26 Pages
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LT3050 Series
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 2)
PARAMETER
CONDITIONS
MIN
Dropout Voltage
ILOAD = 1mA
VIN = VOUT(NOMINAL) (Notes 5, 6)
ILOAD = 1mA
l
ILOAD = 10mA
ILOAD = 10mA
l
ILOAD = 50mA
ILOAD = 50mA
l
ILOAD = 100mA
ILOAD = 100mA
l
GND Pin Current
ILOAD = 0mA
l
VIN = VOUT(NOMINAL) + 0.6V (Notes 6, 7, 11) ILOAD = 1mA
l
ILOAD = 10mA
l
ILOAD = 50mA
l
ILOAD = 100mA
l
Quiescent Current in Shutdown
VIN = 12V, VSHDN = 0V
ADJ Pin Bias Current (Notes 3, 12)
VIN = 12V
l
Output Voltage Noise
COUT = 10μF, ILOAD = 100mA, VOUT = 600mV,
BW = 10Hz to 100kHz
Output Voltage Noise
COUT = 10μF, CBYP = 0.01μF, ILOAD = 100mA, VOUT = 600mV
BW = 10Hz to 100kHz
Shutdown Threshold
SHDN Pin Current (Note 13)
VOUT = Off to On
VOUT = On to Off
VSHDN = 0V
VSHDN = 45V
l
l 0.3
l
l
Ripple Rejection
FAULT Pin Logic Low Voltage
FAULT Pin Leakage Current
VIN – VOUT = 2V, VRIPPLE = 0.5VP-P,
fRIPPLE = 120Hz, ILOAD = 100mA
LT3050
LT3050-3.3
LT3050-5
VIN = 2.2V, FAULT Asserted, IFAULT = 100μA
FAULT = 5V, FAULT Not Asserted
70
55
51
l
Input Reverse Leakage Current
Reverse Output Current (Note 14)
Internal Current Limit (Note 3)
External Programmed Current Limit
(Notes 6, 8)
VIN = –45V, VOUT = 0
l
VOUT = 1.2V, VIN = 0
VIN = 2.2V or VOUT(NOMINAL) + 0.6V, VOUT = 0V, IMAX = 0V
VIN = 2.2V or VOUT(NOMINAL) + 0.6V, ΔVOUT = –5%
l 110
LT3050-3.3
3.9V < VIN < 13.3V, RIMAX = 2.26k
FAULT Pin Threshold (IFAULT)
3.9V < VIN < 13.3V, RIMAX = 1.5k
FAULT Pin Threshold (IFAULT)
3.9V < VIN < 13.3V, RIMAX = 1.15k
FAULT Pin Threshold (IFAULT)
LT3050, LT3050-5
5.6V < VIN < 15V, RIMAX = 2.26k
FAULT Pin Threshold (IFAULT)
5.6V < VIN < 15V, RIMAX = 1.5k
FAULT Pin Threshold (IFAULT)
5.6V < VIN < 15V, RIMAX = 1.15k
FAULT Pin Threshold (IFAULT)
l 48.8
l 73.6
l 96
l 47.8
l 72.1
l 94.4
TYP MAX UNITS
110
150
mV
220
mV
195
240
mV
340
mV
280 330
mV
450
mV
340 400
mV
550
mV
45
90
μA
60
160
μA
175
370
μA
0.85
2
mA
2.2
5.2
mA
0.17
1
μA
12.5
60
nA
90
μVRMS
30
μVRMS
0.7
1.5
V
0.6
V
1
μA
0.9
3
μA
85
dB
70
dB
66
dB
140
250
mV
0.01
1
μA
300
μA
0.2
10
μA
240
mA
51.4
54
mA
77.5 81.4
mA
101
106
mA
50.4 52.9
mA
75.9 79.7
mA
99.3 104.3
mA
3050fa
4
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