参数资料
型号: LT3028IFE#PBF
厂商: Linear Technology
文件页数: 7/16页
文件大小: 0K
描述: IC REG LDO ADJ .5A/.1A 16-TSSOP
产品培训模块: More Information on LDOs
标准包装: 95
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): 0.32V @ 500mA,0.3V @ 100mA
稳压器数量: 2
电流 - 输出: 500mA,100mA
电流 - 限制(最小): 520mA,110mA
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 16-TSSOP(0.173",4.40mm)裸露焊盘
供应商设备封装: 16-TSSOP-EP
包装: 管件
LT3028
TYPICAL PERFOR A CE CHARACTERISTICS
80
Output 2
Input Ripple Rejection
80
Output 2
Input Ripple Rejection
80
Output 2
Input Ripple Rejection
70
60
70
60
C BYP = 0.01 μ F
70
60
50
40
30
C OUT = 1 μ F
C OUT = 10 μ F
50
40
30
C BYP = 100pF
C BYP = 1000pF
50
40
30
10 C IN2 = 0
T J = 25 ° C
20 I L = 100mA
V = 2.3V + 50mV RMS RIPPLE
BYP
0
0.01 0.1 1 10
100
1000
20 I L = 100mA
V IN2 = 2.3V + 50mV RMS RIPPLE
10 C OUT = 10 μ F
T J = 25 ° C
0
0.01 0.1 1 10
100
1000
20 V IN2 = V OUT2(NOMINAL) +
1V + 0.5V P-P RIPPLE
10 AT f = 120Hz
I L = 50mA
0
–50 –25 0 25 50
75
100
125
80
70
60
FREQUENCY (kHz)
Output 1
Input Ripple Rejection
3028 G26
FREQUENCY (kHz)
Output 1
Input Ripple Rejection
80
70 C BYP = 0.01 μ F
60
3028 G27
68
66
64
TEMPERATURE ( ° C)
Output 1 Ripple Rejection
3028 G28
50
C OUT = 10 μ F
50 C BYP = 1000pF
62
40
30
40
30
C BYP = 100pF
60
58
I L = 500mA
20 V IN1 = V OUT1(NOMINAL) +
1V + 50mV RMS RIPPLE
10 C BYP = 0
T J = 25 ° C
0
C OUT = 4.7 μ F
I L = 500mA
20 V IN1 = V OUT1(NOMINAL) +
1V + 50mV RMS RIPPLE
10 C OUT = 10 μ F
T J = 25 ° C
0
56
54
52
V IN1 = V OUT1(NOMINAL) +
1V + 0.5V P-P RIPPLE
AT f = 120Hz
I L = 500mA
10
100
1k 10k
100k
1M
10
100
1k 10k
100k
1M
–50 –25
0
25
50
75
100
125
FREQUENCY (Hz)
3028 G29
FREQUENCY (Hz)
3028 G30
TEMPERATURE ( ° C)
3028 G31
Output 2 Minimum Input Voltage
Output 1 Minimum Input Voltage
2.5
2.0
1.5
V OUT2 = 1.22V
I L = 100mA
2.50
2.25
2.00
1.75
1.50
V OUT1 = 1.22V
I L = 500mA
I L = 1mA
1.0
0.5
I L = 50mA
1.25
1.00
0.75
0.50
0.25
0
–50 –25
0
25
50
75
100
125
0
–50 –25
0
25
50
75
100
125
TEMPERATURE ( ° C)
3028 G32
TEMPERATURE ( ° C)
3028 G33
3028f
7
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