参数资料
型号: AT73C224-A
厂商: Atmel
文件页数: 63/75页
文件大小: 0K
描述: IC PWR MGMT ANALOG PMAAC 32QFN
标准包装: 490
应用: 手持/移动设备
电源电压: 2.8 V ~ 5.25 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 32-VFQFN 裸露焊盘
供应商设备封装: 32-QFN(5x5)
包装: 托盘
AT73C224
7.6.1
BUCK2: Typical Characteristics
Figure 7-3.
Efficiency Manual/Automatic Modes
100
95
90
Efficiency VO2 = 0.9V - Manual Mode: PSK/PWM
100
95
90
Efficiency VO2 = 1.2V - Manual Mode: PSK/PWM
85
VDD2 = 2.8V
85
80
75
70
65
60
55
50
45
VDD2 = 3.6V
VDD2 = 4.2V
VDD2 = 5V
80
75
70
65
60
55
50
45
VDD2 = 2.8V
VDD2 = 3.6V
VDD2 = 4.2V
VDD2 = 5V
40
35
30
25
20
15
10
VDD2 = 2.8V
VDD2 = 3.6V
VDD2 = 4.2V
VDD2 = 5V
PWM
PSK
40
35
30
25
20
15
10
VDD2 = 2.8V
VDD2 = 3.6V
VDD2 = 4.2V
VDD2 = 5V
PWM
PSK
5
0
5
0
0.001
0.01
Iload (A)
0.1
1
0.001
0.01
Iload (A)
0.1
1
100
95
90
Efficiency VO2 = 1.8V - Manual Mode: PSK/PWM
100
95
90
Efficiency VO2 = 3.3V - Manual Mode: PSK/PWM
85
80
75
70
65
60
VDD2 = 2.8V
VDD2 = 3.6V
VDD2 = 4.2V
85
80
75
70
65
VDD2 = 4.2V
VDD2 = 5V
55
50
45
40
35
30
25
20
15
10
5
VDD2 = 5V
VDD2 = 2.8V
VDD2 = 3.6V
VDD2 = 4.2V
VDD2 = 5V
PWM
PSK
60
55
50
45
40
35
30
25
20
VDD2 = 4.2V
VDD2 = 5V
PWM
PSK
0
15
0.001
0.01
0.1
1
0.001
0.01
0.1
1
100
Iload (A)
Efficiency VO2 = 1.8V - Automatic Mode
100
Iload (A)
Efficiency VO2 = 3.3V - Automatic Mode
95
95
90
85
80
75
90
85
80
VDD2 = 4.2V
70
65
60
55
VDD2 = 2.8V
VDD2 = 3.6V
VDD2 = 4.2V
VDD2 = 5V
75
70
VDD2 = 5V
65
50
45
60
0.001
0.01
Iload (A)
0.1
1
0.001
0.01
Iload (A)
0.1
1
63
6266A–PMAAC–08-Sep-08
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