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参数资料
| 型号： | MCP1612-ADJI/MF |
| 厂商： | Microchip Technology |
| 文件页数： | 6/22页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 1A 8DFN |
| 标准包装： | 120 |
| 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-VDFN 裸露焊盘 |
| 包装： | 管件 |
| 供应商设备封装： | 8-DFN-EP（3x3） |
MCP1612
2.0
Note:
TYPICAL PERFORMANCE CURVES
The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
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.
100
90
80
70
60
V OUT = 2.5V
V OUT = 1.2V
0.50
0.40
0.30
V OUT = 2.7V
50
40
30
20
10
0
V OUT = 1.8V
V IN = 3.3V
0.20
0.10
0.00
V OUT = 3.3V
10
100
1000
0
200
400
600
800
1000
Load Current (mA)
Load Current (mA)
FIGURE 2-1:
V IN = 3.3V.
100
90
V OUT = 3.3V
80
Efficiency vs. Load Current,
FIGURE 2-4:
Load Current.
6.5
6.0
Dropout Voltage vs.
T A = +25 C
70
60
50
40
30
V OUT = 2.5V
5.5
5.0
4.5
T A = +85 o C
o
T A = -40 C
20
10
0
V IN = 5.0V
4.0
3.5
o
V OUT = 1.8V
10
100
1000
2.5
3
3.5
4
4.5
5
5.5
Load Current (mA)
Input Voltage (V)
FIGURE 2-2:
V IN = 5.0V.
0
Efficiency vs. Load Current,
FIGURE 2-5:
Input Voltage.
1.42
Input Quiescent Current vs.
-0.2
-0.4
-0.6
V OUT = 1.2V V IN = 3.3V
V OUT = 1.8V, V IN = 3.3V
1.41
1.40
T A = -40 o C
T A = +25 o C
1.39
-0.8
-1
-1.2
-1.4
V OUT = 3.3V, V IN = 5.0V
1.38
1.37
1.36
T A = +85 o C
0
200
400
600
800
1000
2.5
3
3.5
4
4.5
5
5.5
Load Current (mA)
Input Voltage (V)
FIGURE 2-3:
Output Voltage vs.
FIGURE 2-6:
Oscillator Frequency vs.
Load Current.
DS21921B-page 6
Input Voltage.
? 2005 Microchip Technology Inc.
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