参数资料
型号: ISL8033IRZ
厂商: Intersil
文件页数: 13/18页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 3A DL 24QFN
标准包装: 75
类型: 降压(降压)
输出类型: 可调式
输出数: 2
输出电压: 0.8 V ~ 6 V
输入电压: 2.85 V ~ 6 V
PWM 型: 电流模式
频率 - 开关: 1.1MHz
电流 - 输出: 3A
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: 24-VFQFN 裸露焊盘
包装: 管件
供应商设备封装: 24-QFN(4x4)
ISL8033, ISL8033A
Typical Operating Performance ISL8033A
Unless otherwise noted, operating conditions are: T A = +25°C, V IN = 5V, EN = V IN , L1 = 0.68μH, L2 = 1 μ H, C1 = C2 = C4 = 2x22μF, V OUT1 = 1.2V, V OUT2 =
1.8V, I OUT1 = I OUT2 = 0A to 3A.
100
2.5V OUT
100
2.5V OUT
3.3V OUT
90
80
90
80
70
1.2V OUT
1.5V OUT
1.8V OUT
70
1.2V OUT
1.5V OUT
1.8V OUT
60
50
60
50
40
0.0
0.5
1.0 1.5 2.0
2.5
3.0
40
0.0
0.5
1.0 1.5 2.0
2.5
3.0
OUTPUT LOAD (A)
FIGURE 32. EFFICIENCY vs LOAD, 1MHz 3.3V IN DUAL CH1 +25°C
OUTPUT LOAD (A)
FIGURE 33. EFFICIENCY vs LOAD, 1MHz 5V IN , DUAL CH1 +25°C
LX2 2V/DIV
LX1 2V/DIV
V OUT1 RIPPLE 20mV/DIV
V OUT2 RIPPLE 20mV/DIV
IL1 0.2A/DIV
FIGURE 34. STEADY STATE OPERATION AT NO LOAD CHANNEL 1
LX1 2V/DIV
V OUT1 RIPPLE 20mV/DIV
IL1 0.2A/DIV
FIGURE 36. STEADY STATE OPERATION WITH FULL LOAD
CHANNEL 1
13
IL2 0.2A/DIV
FIGURE 35. STEADY STATE OPERATION AT NO LOAD CHANNEL 2
LX2 2V/DIV
V OUT2 RIPPLE 20mV/DIV
IL2 0.2A/DIV
FIGURE 37. STEADY STATE OPERATION WITH FULL LOAD
CHANNEL 2
FN6854.2
March 24, 2011
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