参数资料
型号: ADP3050AR-3.3
厂商: Analog Devices Inc
文件页数: 8/20页
文件大小: 0K
描述: IC REG BUCK 3.3V 1A 8SOIC
标准包装: 98
类型: 降压(降压)
输出类型: 固定
输出数: 1
输出电压: 3.3V
输入电压: 3.6 V ~ 30 V
PWM 型: 电流模式
频率 - 开关: 200kHz
电流 - 输出: 1A
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: 8-SOIC(0.154",3.90mm 宽)
包装: 管件
供应商设备封装: 8-SO
配用: ADP3050-EVAL-ND - BOARD EVAL FOR ADP3050
ADP3050
0.8
0.7
0.6
0.5
0.4
0.3
V IN = 10V
0V
V SW = 5V/DIV
I L = 500mA/DIV
V IN = 10V
Data Sheet
0.2
0.1
0
0A
V OUT = 5V
I LOAD = 800mA
L = 33μH
C IN = 22μF
C OUT = 100μF
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
210
LOAD CURRENT (A)
Figure 15. Switch Saturation Voltage vs. Load Current
TIME (1μs/DIV)
Figure 18. Continuous Conduction Mode Waveforms
208
206
204
V IN = 10V
I LOAD = 250μA
V SW = 5V/DIV
202
200
198
196
194
192
0V
0A
I L = 500mA/DIV
V IN = 10V
V OUT = 5V
I LOAD = 100mA
L = 33μH
C IN = 22μF
C OUT = 100μF
190
–45 –35 –25 –15 –5
5
15
25
35
45
55
65
75
85
250
200
150
AMBIENT TEMPERATURE (°C)
Figure 16. Switching Frequency vs. Temperature
V IN = 10V
COMP = 0.4V
5V
TIME (1μs/DIV)
Figure 19. Discontinuous Conduction Mode Waveforms
V OUT = 200mV/DIV
100
50
1A
0A
I LOAD
V IN = 10V
V OUT = 5V
I LOAD = 100mA TO 1A SWITCHED
L = 33μH
C IN = 22μF
0
0
0.2
0.4
0.6
0.8
1.0
C OUT = 100μF
NORMALIZED FEEDBACK VOLTAGE (V)
Figure 17. Frequency Foldback
Rev. C | Page 8 of 20
TIME (400μs/DIV)
Figure 20. Transient Response
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