参数资料
型号: LT1120IS8#PBF
厂商: Linear Technology
文件页数: 8/12页
文件大小: 0K
描述: IC REG LDO ADJ 125MA 8SOIC
标准包装: 100
稳压器拓扑结构: 正,可调式
输出电压: 2.5 V ~ 35.15 V
输入电压: 4.5 V ~ 36 V
电压 - 压降(标准): 0.4V @ 125mA
稳压器数量: 1
电流 - 输出: 125mA(最小)
工作温度: -40°C ~ 100°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 管件
LT1120
TYPICAL APPLICATIO S
Regulator with Output Voltage Monitor
5
5V
LT1120
V IN
V OUT
4
V OUT
5V
LOGIC
OUTPUT
LOGIC
500k
7
+
–INPUT 8
0.001 μ F
98k
2k
+
10 μ F
V OUT
PIN 7
REF
GND
FB
2
LOGIC
OUTPUT
6
LOGIC OUTPUT GOES LOW WHEN V OUT DROPS BY 100mV
Compensating the Comparator as an Op Amp
1
100k
1120 TA03
1A Low Dropout Regulator
V IN
6
+
7
50 μ A
2.2k
8
1M
AT Av = 100,
SLEW RATE = +0.05V/ μ s
–6V/ μ s
5
V IN
V OUT
4
*
MJE2955
V OUT
5V
R2
R1
LT1120
FB
2
10k*
100k
0.001 μ F
+
220 μ F ?
C2
C1
GND
1
150 Ω *
100k
1120 TA04
MUST HAVE LOW ESR. SEVERAL 100 μ F CAPACITORS CAN BE PARALLELED.
Av
1
10
100
R1
33 Ω
100 Ω
10k
C1
0.1 μ F
0.047 μ F
0.002 μ F
C2
0.001 μ F
R2
100k
10k
* FOR CURRENT LIMIT ≈ 1.5A
?
1120 TA05
1120fd
8
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