参数资料
| 型号： | LT3050MPMSE#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 4/26页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ .1A 12MSOP |
| 产品培训模块： | LT3050 - 100mA, Low Noise Linear Regulator With Precision Current Limit And Diagnostic Functions |
| 标准包装： | 37 |
| 稳压器拓扑结构： | 正，可调式 |
| 输出电压： | 0.6 V ~ 44.5 V |
| 输入电压： | 1.6 V ~ 45 V |
| 电压 - 压降（标准）： | 0.34V @ 100mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 100mA |
| 电流 - 限制（最小）： | 110mA |
| 工作温度： | -55°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 12-TSSOP （0.118"，3.00mm 宽）裸露焊盘 |
| 供应商设备封装： | 12-MSOP，裸露焊盘 |
| 包装： | 管件 |
LT3050 Series
ELECTRICAL CHARACTERISTICS The l denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T A = 25°C. (Note 2)
PARAMETER
Dropout Voltage
V IN = V OUT(NOMINAL) (Notes 5, 6)
GND Pin Current
V IN = V OUT(NOMINAL) + 0.6V (Notes 6, 7, 11)
Quiescent Current in Shutdown
ADJ Pin Bias Current (Notes 3, 12)
Output Voltage Noise
CONDITIONS
I LOAD = 1mA
I LOAD = 1mA
I LOAD = 10mA
I LOAD = 10mA
I LOAD = 50mA
I LOAD = 50mA
I LOAD = 100mA
I LOAD = 100mA
I LOAD = 0mA
I LOAD = 1mA
I LOAD = 10mA
I LOAD = 50mA
I LOAD = 100mA
V IN = 12V, V SHDN = 0V
V IN = 12V
C OUT = 10μF, I LOAD = 100mA, V OUT = 600mV,
l
l
l
l
l
l
l
l
l
l
MIN
TYP
110
195
280
340
45
60
175
0.85
2.2
0.17
12.5
90
MAX
150
220
240
340
330
450
400
550
90
160
370
2
5.2
1
60
UNITS
mV
mV
mV
mV
mV
mV
mV
mV
μA
μA
μA
mA
mA
μA
nA
μV RMS
BW = 10Hz to 100kHz
Output Voltage Noise
C OUT = 10μF, C BYP = 0.01μF, I LOAD = 100mA, V OUT = 600mV
30
μV RMS
BW = 10Hz to 100kHz
Shutdown Threshold
SHDN Pin Current (Note 13)
V OUT = Off to On
V OUT = On to Off
V SHDN = 0V
V SHDN = 45V
l
l
l
l
0.3
0.7
0.6
0.9
1.5
1
3
V
V
μA
μA
Ripple Rejection
V IN – V OUT = 2V, V RIPPLE = 0.5V P-P ,
f RIPPLE = 120Hz, I LOAD = 100mA
LT3050
LT3050-3.3
LT3050-5
70
55
51
85
70
66
dB
dB
dB
FAULT Pin Logic Low Voltage
V IN = 2.2V, FAULT Asserted, I FAULT = 100μA
l
140
250
mV
FAULT Pin Leakage Current
Input Reverse Leakage Current
Reverse Output Current (Note 14)
FAULT = 5V, FAULT Not Asserted
V IN = –45V, V OUT = 0
V OUT = 1.2V, V IN = 0
l
0.01
0.2
1
300
10
μA
μA
μA
Internal Current Limit (Note 3)
V IN = 2.2V or V OUT(NOMINAL) + 0.6V, V OUT = 0V, I MAX = 0V
V IN = 2.2V or V OUT(NOMINAL) + 0.6V, Δ V OUT = –5%
l
110
240
mA
External Programmed Current Limit
LT3050-3.3
(Notes 6, 8)
3.9V < V IN < 13.3V, R IMAX = 2.26k
FAULT Pin Threshold (I FAULT )
3.9V < V IN < 13.3V, R IMAX = 1.5k
FAULT Pin Threshold (I FAULT )
3.9V < V IN < 13.3V, R IMAX = 1.15k
FAULT Pin Threshold (I FAULT )
l
l
l
48.8
73.6
96
51.4
77.5
101
54
81.4
106
mA
mA
mA
LT3050, LT3050-5
5.6V < V IN < 15V, R IMAX = 2.26k
FAULT Pin Threshold (I FAULT )
5.6V < V IN < 15V, R IMAX = 1.5k
FAULT Pin Threshold (I FAULT )
5.6V < V IN < 15V, R IMAX = 1.15k
FAULT Pin Threshold (I FAULT )
l
l
l
47.8
72.1
94.4
50.4
75.9
99.3
52.9
79.7
104.3
mA
mA
mA
3050fa
4
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