参数资料
| 型号： | LT3085MPMS8E#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 7/28页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ .5A 8-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： | 可调 |
| 输入电压： | 1.2 V ~ 36 V |
| 电压 - 压降（标准）： | 1.35V @ 500mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 500mA |
| 电流 - 限制（最小）： | 500mA |
| 工作温度： | -55°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽）裸露焊盘 |
| 供应商设备封装： | 8-MSOP-EP |
| 包装： | 带卷 (TR) |
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LT3085
TYPICAL PERFORMANCE CHARACTERISTICS
Error Ampli?er Gain and Phase
Ripple Rejection - SET Pin Current
21
216
150
18
I LOAD = 500mA
144
135
15
12
72
0
120
105
C SET = 0.1μF
9
I LOAD = 100mA
–72
90
6
–144
75
C SET = 0
3
0
I LOAD = 500mA
–216
–288
60
45
–3
–360
30
R SET = 100k
–6
I LOAD = 100mA
–432
15
V IN = V CONTROL = V OUT (NOMINAL) +2V
RIPPLE = 50mV P–P
–9
10
100
1k
10k
100k
–504
1M
0
10
100
1k
10k
100k
1M
FREQUENCY (Hz)
3085 G28
FREQUENCY (Hz)
3085 G29
PIN FUNCTIONS
(DCB/MS8E)
V CONTROL (Pin 4/Pin 5): This pin is the supply pin for the
control circuitry of the device. The current ?ow into this
pin is about 1.7% of the output current. For the device to
regulate, this voltage must be more than 1.2V to 1.35V
greater than the output voltage (see V CONTROL Dropout
Voltage in the Electrical Characteristics table and graphs
in the Typical Performance Characteristics). The LT3085
requires a bypass capacitor at V CONTROL if more than six
inches away from the main input ?lter capacitor. The output
impedance of a battery rises with frequency, so include
a bypass capacitor in battery-powered circuits. A bypass
capacitor in the range of 1μF to 10μF suf?ces.
IN (Pins 5, 6/Pins 7, 8): This is the collector to the power
device of the LT3085. The output load current is supplied
through this pin. For the device to regulate, the voltage at
this pin must be more than 0.1V to 0.5V greater than the
output voltage (see V IN Dropout Voltage in the Electrical
Characteristics table and graphs in the Typical Perfor-
mance Characteristics). The LT3085 requires a bypass
capacitor at IN if more than six inches away from the main
input ?lter capacitor. The output impedance of a battery
rises with frequency, so include a bypass capacitor in
battery-powered circuits. A bypass capacitor in the range
of 1μF to 10μF suf?ces.
NC (NA/Pin 6): No Connection. The No Connect pin has
no connection to internal circuitry and may be tied to V IN ,
V CONTROL , V OUT , GND, or ?oated.
OUT (Pins 1, 2/Pins 1, 2, 3): This is the power output
of the device. There must be a minimum load current of
1mA or the output may not regulate. A minimum 2.2μF
output capacitor is required for stability.
SET (Pin 3/Pin 4): This pin is the non-inverting input to the
error ampli?er and the regulation set point for the device.
A ?xed current of 10μA ?ows out of this pin through a
single external resistor, which programs the output voltage
of the device. Output voltage range is zero to the absolute
maximum rated output voltage. Transient performance can
be improved and output noise can be decreased by adding
a small capacitor from the SET pin to ground.
Exposed Pad (Pin 7/Pin 9): OUT. Tie directly to Pins 1, 2/
Pins 2, 3 directly at the PCB.
3085fb
7
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相关代理商/技术参数 |
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| LT3090EDD#PBF | 制造商:Linear Technology 功能描述:IC REG LDO NEG ADJ 0.6A 10DFN 制造商:Linear Technology 功能描述:IC, LINEAR VOLT REG, -36V, DFN-10 制造商:Linear Technology 功能描述:LDO, ADJ, 0V-32V, 600MA, DFN-10, Primary Input Voltage:-36V, Dropout Voltage Vdo 制造商:Linear Technology 功能描述:LDO, ADJ, 0V-32V, 600MA, DFN-10, Input Voltage Min:-36V, Input Voltage Max:-1.5V, Output Voltage Min:-32V, Output Voltage Max:0V, Output Current:600mA, Dropout Voltage Vdo:300mV, No. of Pins:10, Operating Temperature Min:-40C , RoHS Compliant: Yes |
| LT3090EMSE#PBF | 制造商:Linear Technology 功能描述:IC REG LDO NEG ADJ 0.6A 12MSOP 制造商:Linear Technology 功能描述:IC, LINEAR VOLT REG, -36V, MSOP-12 制造商:Linear Technology 功能描述:LDO, ADJ, 0V-32V, 600MA, MSOP-12, Primary Input Voltage:-36V, Dropout Voltage Vd |
| LT3090EMSE#TRPBF | 制造商:Linear Technology 功能描述:IC REG LDO NEG ADJ 0.6A 12MSOP 制造商:Linear Technology 功能描述:LDO, ADJ, 0V-32V, 600MA, MSOP-12, Primary Input Voltage:-36V, Dropout Voltage Vd |
| LT3090HDD#PBF | 制造商:Linear Technology 功能描述:IC REG LDO NEG ADJ 0.6A 10DFN 制造商:Linear Technology 功能描述:IC, LINEAR VOLT REG, -36V, DFN-10 制造商:Linear Technology 功能描述:LDO, ADJ, 0V-32V, 600MA, DFN-10, Input Voltage Min:-36V, Input Voltage Max:-1.5V, Output Voltage Min:-32V, Output Voltage Max:0V, Output Current:600mA, Dropout Voltage Vdo:300mV, No. of Pins:10, Operating Temperature Min:-40C , RoHS Compliant: Yes |
| LT3090HMSE#PBF | 制造商:Linear Technology 功能描述:IC REG LDO NEG ADJ 0.6A 12MSOP 制造商:Linear Technology 功能描述:IC, LINEAR VOLT REG, -36V, MSOP-12 |
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