参数资料
型号: ISL8540IVEZ-T
厂商: Intersil
文件页数: 9/16页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 2A 20HTSSOP
标准包装: 2,500
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 1.21 V ~ 35 V
输入电压: 9 V ~ 40 V
PWM 型: 电压模式
频率 - 开关: 100kHz ~ 600kHz
电流 - 输出: 2A
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-TSSOP(0.173",4.40mm 宽)裸露焊盘
包装: 带卷 (TR)
供应商设备封装: 20-TSSOP-EP
ISL8540
Typical Performance Curves
Circuit of Figure 2, V IN = 24V, EN = 0V, FS = 500KHz, V OUT = 5V, unless otherwise noted.
Typical values are at T A = +25°C. (Continued)
3.0
2.5
2.0
1.5
1.0
0.5
36V V IN
24V V IN
3.0
2.5
2.0
1.5
1.0
0.5
36V V IN
24V V IN
0.0
12V V IN
0.0
0.0
0.5
1.0
1.5
2.0
0.0
0.5
1.0
1.5
2.0
OUTPUT LOAD (A)
FIGURE 16. POWER DISSIPATION vs LOAD
(V OUT = 5V - 500kHz)
OUTPUT LOAD (A)
FIGURE 17. POWER DISSIPATION vs LOAD
(V OUT = 12V - 500kHz)
LX = 10V/DIV
3.0
2.5
36V V IN
2.0
1.5
1.0
0.5
0.0
V OUT RIPPLE = 50mV/DIV
RTCT = 2V/DIV
IL = 0.2A/DIV
0.0
0.5
1.0
1.5
2.0
OUTPUT LOAD (A)
FIGURE 18. POWER DISSIPATION vs LOAD
(V OUT = 24V - 500kHz)
LX = 10V/DIV
V OUT RIPPLE = 50mV/DIV
IL = 1A/DIV
FIGURE 19. STEADY STATE OPERATION AT NO LOAD
LX = 10V/DIV
V OUT RIPPLE = 50mV/DIV
RTCT = 2V/DIV
IL = 1A/DIV
FIGURE 20. STEADY STATE OPERATION WITH FULL LOAD
9
FIGURE 21. LOAD TRANSIENT
FN6495.5
September 9, 2008
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