参数资料
型号: LT8582IDKD#TRPBF
厂商: Linear Technology
文件页数: 5/36页
文件大小: 0K
描述: IC REG MULTI CONFIG ADJ 3A 24DFN
标准包装: 2,500
类型: 升压(升压),反相,回扫,Sepic
输出类型: 可调式
输出数: 2
输出电压: 最高 42V
输入电压: 2.5 V ~ 22 V
PWM 型: 电流模式
频率 - 开关: 200kHz ~ 2.5MHz
电流 - 输出: 3A
同步整流器:
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 24-WFDFN 裸露焊盘
包装: 带卷 (TR)
供应商设备封装: 24-DFN(7x4)

LT8582
TYPICAL PERFORMANCE CHARACTERISTICS
Switch Current Limit vs Duty
T A = 25°C, unless otherwise noted.
Cycle
Switch Saturation Voltage
Switch Current Sharing
5
350
300
V SW1 = V SW2
1.0
0.9
4
250
0.8
0.7
3
2
1
200
150
100
50
0.6
0.5
0.4
0.3
0.2
0.1
0
10
20
30
40
50
60
70
80
90
0
0
0.5
1
1.5
2
2.5
3
3.5
0
0
0.5
1
1.5
2
2.5
3
3.5
5
4
3
2
1
DUTY CYCLE (%)
8582 G01
Switch Current Limit at Minimum
Duty Cycle
5
4
3
2
1
SWA + SWB CURRENT (A)
Commanded Current Limit vs
SS Voltage
8582 G02
100
80
60
40
20
SWA CURRENT (A)
CLKOUT Duty Cycle
CHANNEL 2
CHANNEL 1
8582 G03
0
–50 –25
0
25
50
75 100 125 150
0
0
0.2
0.4
0.6
0.8
1
1.2
0
–50 –25
0
25
50 75 100 125 150
3.0
TEMPERATURE (°C)
Oscillator Frequency
8582 G04
1
SS VOLTAGE (V)
Switching Frequency During
Soft-Start
8582 G05
1100
TEMPERATURE (°C)
Gate Pin Current (V SS = 2.1V)
8582 G06
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
R T = 31.6k
1/2
1/3
1000
900
800
700
600
500
400
0.8
0.6
0.4
0.2
0.0
R T = 402k
1/4
1/5
INVERTING NONINVERTING
CONFIGURATIONS CONFIGURATIONS
300
200
100
0
T A = –40°C
T A = 25°C
T A = 125°C
–50 –25
0
25
50 75 100 125 150
0
0.2
0.4
0.6 0.8
1
1.2
0
10
20
30 40
50
60
TEMPERATURE (°C)
8582 G07
FBX VOLTAGE (V)
8582 G08
GATE PIN VOLTAGE (V)
8582 G09
8582f
5
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