参数资料
| 型号： | LT3023IMSE#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/16页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ .1A 10-MSOP |
| 产品培训模块： | More Information on LDOs |
| 标准包装： | 2,500 |
| 稳压器拓扑结构： | 正，可调式 |
| 输出电压： | 1.22 V ~ 20 V |
| 输入电压： | 1.8 V ~ 20 V |
| 电压 - 压降（标准）： | 0.3V @ 100mA |
| 稳压器数量： | 2 |
| 电流 - 输出： | 100mA |
| 电流 - 限制（最小）： | 110mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 |
| 供应商设备封装： | 10-MSOP 裸露焊盘 |
| 包装： | 带卷 (TR) |
LT3023
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
Line Regulation (Note 3)
Load Regulation (Note 3)
Dropout Voltage
V IN = V OUT(NOMINAL) (Notes 5, 6, 11)
GND Pin Current (Per Channel)
V IN = V OUT(NOMINAL) (Notes 5, 7)
Output Voltage Noise
ADJ1/ADJ2 Pin Bias Current
CONDITIONS
ΔV IN = 2V to 20V, I LOAD = 1mA
V IN = 2.3V, ΔI LOAD = 1mA to 100mA
V IN = 2.3V, ΔI LOAD = 1mA to 100mA
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
C OUT = 10μF, C BYP = 0.01μF, I LOAD = 100mA, BW = 10Hz to 100kHz
(Notes 3, 8)
l
l
l
l
l
l
l
l
l
l
l
MIN
TYP
1
1
0.10
0.17
0.24
0.30
20
55
230
1
2.2
20
30
MAX
10
12
25
0.15
0.19
0.22
0.29
0.28
0.38
0.35
0.45
45
100
400
2
4
100
UNITS
mV
mV
mV
V
V
V
V
V
V
V
V
μA
μA
μA
mA
mA
μV RMS
nA
Shutdown Threshold
SHDN1 / SHDN2 Pin Current
(Note 9)
Quiescent Current in Shutdown
Ripple Rejection (Note 3)
V OUT = Off to On
V OUT = On to Off
V SHDN = 0V
V SHDN = 20V
V IN = 6V, V SHDN = 0V (Both SHDN Pins)
V IN = 2.72V (Avg), V RIPPLE = 0.5V P-P , f RIPPLE = 120Hz,
l
l
l
l
0.25
55
0.8
0.65
0
1
0.01
65
1.4
0.5
3
0.1
V
V
μA
μA
μA
dB
I LOAD = 50mA
Current Limit
Input Reverse Leakage Current
V IN = 7V, V OUT = 0V
V IN = 2.3V, ΔV OUT = –5%
V IN = –20V, V OUT = 0V
l
l
110
200
1
mA
mA
mA
Reverse Output Current (Notes 3,10) V OUT = 1.22V, V IN < 1.22V
5
10
μA
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LT3023 is tested and speci?ed under pulse load conditions
such that T J ? T A . The LT3023E is 100% tested at T A = 25°C. Performance
at – 40°C and 125°C is assured by design, characterization and correlation
with statistical process controls. The LT3023I is guaranteed over the full
–40°C to 125°C operating junction temperature range.
Note 3: The LT3023 is tested and speci?ed for these conditions with the
ADJ1/ADJ2 pin connected to the corresponding OUT1/OUT2 pin.
Note 4: Operating conditions are limited by maximum junction
temperature. The regulated output voltage speci?cation will not apply
for all possible combinations of input voltage and output current. When
operating at maximum input voltage, the output current range must be
limited. When operating at maximum output current, the input voltage
range must be limited.
Note 6: Dropout voltage is the minimum input to output voltage differential
needed to maintain regulation at a speci?ed output current. In dropout, the
output voltage will be equal to: V IN – V DROPOUT .
Note 7: GND pin current is tested with V IN = 2.44V and a current source
load. This means the device is tested while operating in its dropout region
or at the minimum input voltage speci?cation. This is the worst-case GND
pin current. The GND pin current will decrease slightly at higher input
voltages.
Note 8: ADJ1 and ADJ2 pin bias current ?ows into the pin.
Note 9: SHDN1 and SHDN2 pin current ?ows into the pin.
Note 10: Reverse output current is tested with the IN pin grounded and the
OUT pin forced to the rated output voltage. This current ?ows into the OUT
pin and out the GND pin.
Note 11: For the LT3023 dropout voltage will be limited by the minimum
input voltage speci?cation under some output voltage/load conditions.
See the curve of Minimum Input Voltage in the Typical Performance
Characteristics.
Note 5: To satisfy requirements for minimum input voltage, the LT3023 is
tested and speci?ed for these conditions with an external resistor divider
(two 250k resistors) for an output voltage of 2.44V. The external resistor
divider will add a 5μA DC load on the output.
3023fa
3
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