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参数资料
| 型号： | MCP1612T-ADJI/MS |
| 厂商： | Microchip Technology |
| 文件页数： | 7/22页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 1A 8MSOP |
| 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： | 0.8 V ~ 5 V |
| 输入电压： | 2.7 V ~ 5.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1.4MHz |
| 电流 - 输出： | 1A |
| 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： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 8-MSOP |
MCP1612
TYPICAL PERFORMANCE CURVES (Continued)
Note: Unless otherwise indicated, V IN = V CC = V SHDN = 3.3V, C OUT = C IN = 10 μF, L = 3.3 μH, I LOAD = 100 mA,
T A = +25°C. Boldface specifications apply over the T A range of -40°C to +85°C.
Start-up from V IN = 0V to 3.3V
V OUT
I OUT = 100 mA to 800 mA
V IN = 5.0V
V OUT = 3.3V
V IN
100 mV/DIV
2.0V/DIV
I OUT
V OUT
1.0V/DIV
1.0 ms/DIV
V OUT = 1.8V
500 mA/DIV
500 μs/DIV
FIGURE 2-7:
Power-Up from V IN .
FIGURE 2-10:
Load Transient Response.
SHDN
Start-up from SHDN
V IN
2.0V/DIV
Line Step Response, V IN = 3.0V to 4.0V
2.0V/DIV
V OUT
50 mV/DIV
V OUT
V OUT = 1.8V
1.0V/DIV
1.0 ms/DIV
V OUT = 1.8V
I OUT = 800 mA
200 μs/DIV
FIGURE 2-8:
Power-Up from Shutdown.
FIGURE 2-11:
Line Transient Response.
V OUT
I OUT = 100 mA to 800 mA
V IN
2.0V/DIV
Line Step Response, V IN = 4.5V to 5.5V
200 mV/DIV
V OUT
I OUT
500 mA/DIV
50 μs/DIV
V OUT = 1.8V
50 mV/DIV
V OUT = 3.3V
I OUT = 800 mA
200 μs/DIV
FIGURE 2-9:
Load Transient Response.
FIGURE 2-12:
Line Transient Response.
? 2005 Microchip Technology Inc.
DS21921B-page 7
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