参数资料
型号: LT1533IS#TRPBF
厂商: Linear Technology
文件页数: 4/20页
文件大小: 0K
描述: IC REG PUSH-PLL CTRLR ISO 16SOIC
标准包装: 2,500
类型: 推挽式控制器,隔离式
输出类型: 可调式
输出数: 1
输出电压: 1.3 V ~ 30 V
输入电压: 2.7 V ~ 23 V
PWM 型: 电流模式
频率 - 开关: 200kHz ~ 250kHz
电流 - 输出: 1A
同步整流器:
工作温度: -40°C ~ 100°C
安装类型: 表面贴装
封装/外壳: 16-SOIC(0.154",3.90mm 宽)
包装: 带卷 (TR)
供应商设备封装: 16-SOIC
LT1533
TYPICAL PERFOR M A N CE CHARACTERISTICS
Minimum Input Voltage vs
2.70
Temperature
0
Change in I LIM vs DC
0.7
Switch Voltage Drop
2.65
–50
0.6
125 ° C
2.60
2.55
–100
–150
125 ° C
25 ° C
0.5
0.4
0.3
85 ° C
25 ° C
–200
0.2
2.50
–250
0.1
2.45
–50 –25
0
25
50
75
100 125 150
–300
0
10
20 30
40
50
0
0
0.2
0.4
0.6
0.8
1.0
JUNCTION TEMPERATURE ( ° C)
Feedback Voltage and Input
Current vs Temperature
1533 G01
DUTY CYCLE (%)
1533 G02
Negative Feedback Voltage and
Input Current vs Temperature
SWITCH CURRENT (A)
1533 G03
Error Amplifier Transconductance
vs Temperature
1.30
2.0
–2.30
35
2000
1.29
1.8
–2.35
1900
g m = ? I VC / ? V FB
1.28
1.27
1.26
1.25
V FB
1.6
1.4
1.2
1.0
–2.40
–2.45
–2.50
V NFB
30
25
1800
1700
1600
1500
1.24
0.8
–2.55
1400
1.23
1.22
1.21
I FB
0.6
0.4
0.2
–2.60
–2.65
I NFB
20
1300
1200
1100
1.20
–50 –25
0
25
50
75
0
100 125 150
–2.70
–50 –25
0
25
50
75
15
100 125 150
1000
–50 –25
0
25
50
75
100 125 150
120
TEMPERATURE ( ° C)
Switching Frequency vs
Feedback Pin Voltage
1533 G04
500
TEMPERATURE ( ° C)
Error Amplifier Output Current
1533 G05
1.6
TEMPERATURE ( ° C)
V C Pin Threshold and Clamp
Voltage vs Temperature
1533 G06
100
80
400
300
200
100
–40 ° C
125 ° C
25 ° C
1.4
1.2
1.0
V C PIN CLAMP
VOLTAGE
60
40
0
–100
–200
0.8
0.6
20
–300
–400
0.4
0.2
V C PIN
THRESHOLD
0
0
0.1
0.2
0.3 0.4
0.5
0.6
–500
–400 –300 –200 –100
0 100 200 300 400
0
–50 –25
0
25
50
75
100 125
4
FEEDBACK PIN VOLTAGE (V)
1533 G07
FEEDBACK PIN VOLTAGE FROM NOMINAL (mV)
1533 G08
TEMPERATURE ( ° C)
1533 G09
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