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参数资料
| 型号： | ISL8033IRZ-T |
| 厂商： | Intersil |
| 文件页数： | 8/18页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 3A DL 24QFN |
| 标准包装： | 6,000 |
| 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： | 是 |
| 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： | 带卷 (TR) |
| 供应商设备封装： | 24-QFN（4x4） |
ISL8033, ISL8033A
Typical Operating Performance ISL8033
Unless otherwise noted, operating conditions are: T A = +25°C, V IN = 5V, EN = V IN , L1 = L2 = 1.5 μ H, C1 = C2 = C4 = 2x22μF, V OUT1 = 1.2V, V OUT2 = 1.8V,
I OUT1 = I OUT2 = 0A to 3A.
100
90
100
90
80
1.8V OUT
2.5V OUT
80
1.8V OUT
2.5V OUT
70
1.2V OUT
1.5V OUT
70
3.3V OUT
1.2V OUT
1.5V 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
1.2
I OUT (A)
FIGURE 3. EFFICIENCY, T A = +25°C V IN = 3.3V
1.210
I OUT (A)
FIGURE 4. EFFICIENCY, T A = +25°C, V IN = 5V
1.0
1.205
5V IN
0.8
0.6
5V IN
3.3V IN
1.200
1.195
0.4
0.2
1.190
1.185
3.3V IN
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
1.180
0
0.5
1.0
1.5
2.0
2.5
3.0
I OUT (A)
FIGURE 5. POWER DISSIPATION, T A = +25°C V OUT = 1.8V
1.500
1.495
5V IN
IOUT (A)
FIGURE 6. LOAD REGULATION, V OUT = 1.2V T A = +25°C
1.800
1.795
1.490
1.485
1.790
1.785
5V IN
1.480
3.3V IN
1.780
1.475
1.775
3.3V IN
1.470
0
0.5
1.0
1.5
2.0
2.5
3.0
1.770
0.0
0.5
1.0
1.5
2.0
2.5
3.0
I OUT (A)
FIGURE 7. LOAD REGULATION, V OUT = 1.5V T A = +25°C
8
I OUT (A)
FIGURE 8. LOAD REGULATION, V OUT = 1.8V T A = +25°C
FN6854.2
March 24, 2011
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