参数资料
型号: ISL8112IRZ-T
厂商: Intersil
文件页数: 10/27页
文件大小: 0K
描述: IC REG DL BCK/LINEAR SYNC 32-QFN
标准包装: 6,000
拓扑: 降压(降压)同步(1),线性(LDO)(1)
功能: 任何功能
输出数: 2
频率 - 开关: 可调式
电压/电流 - 输出 1: 控制器
电压/电流 - 输出 2: 0.7 V ~ 4.5 V,200mA
带 LED 驱动器:
带监控器:
带序列发生器:
电源电压: 4.5 V ~ 25 V
工作温度: -40°C ~ 100°C
安装类型: 表面贴装
封装/外壳: 32-VFQFN 裸露焊盘
供应商设备封装: 32-QFN(5x5)
包装: 带卷 (TR)
ISL8112
Typical Performance Curves
600
Circuit of Figure 17 and Figure 18, no load on LDO, VSEN1, VSEN2, VREF2, and VREF1,
V IN = 12V, EN2 = EN1 = VCC, VBYP = 5V, PVCC = 5V, VEN_LDO = 5V, T A = -40°C to +100°C,
unless otherwise noted. Typical values are at T A = +25°C. (Continued)
14
500
400
PWM
12
10
PWM
300
8
ULTRA-SKIP
SKIP
6
200
100
SKIP
ULTRA-SKIP
4
2
0
0.001
0.010
0.100
1.000
10.000
0
0.001
0.010
0.100
1.000
10.000
OUTPUT LOAD (A)
FIGURE 9. V OUT2 = 3.3V FREQUENCY vs LOAD
OUTPUT LOAD (A)
FIGURE 10. V OUT2 = 3.3V RIPPLE vs LOAD
450
400
40
35
PWM
350
300
250
200
150
100
ULTRA-SKIP
PWM
30
25
20
15
10
ULTRA-SKIP
SKIP
50
0
0.001
0.010
SKIP
0.100
OUTPUT LOAD (A)
1.000
10.000
5
0
0.001
0.010
0.100
OUTPUT LOAD (A)
1.000
10.000
5.04
FIGURE 11. V OUT1 = 5V FREQUENCY vs LOAD
3.35
FIGURE 12. V OUT1 = 5V RIPPLE vs LOAD
5.02
5.00
BYP = 0V
3.30
4.98
4.96
4.94
4.92
3.25
3.20
3.15
BYP = 0V
4.90
4.88
4.86
BYP = 5V
3.10
3.05
BYP = 3.3V
4.84
0
50
100
150
200
3.00
0
50
100
150
200
OUTPUT LOAD (mA)
FIGURE 13. LDO OUTPUT 5V vs LOAD
10
OUTPUT LOAD (mA)
FIGURE 14. LDO OUTPUT 3.3V vs LOAD
FN6396.1
August 10, 2010
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