产品数据表
AAT2782
的SystemPower
TM
三路输出PMIC :双通道降压低-V
IN
LDO
典型特征 - 降压转换器1
降压转换器1效率与负载
(V
OUT1
= 1.2V; V
IN
= 2.7V至5.5V ; L = 1.7μH )
100
90
0.5
降压转换器1 DC调节
(V
OUT1
= 1.2V; V
IN
= 2.7〜 5.5V ; L = 1.7μH )
V
IN
= 2.7V
V
IN
= 3.3V
V
IN
= 3.6V
V
IN
= 4.2V
V
IN
= 5.0V
V
IN
= 5.5V
输出误差( % )
效率(%)
80
70
60
50
40
30
20
10
0.1
1
10
100
1000
10000
0.3
V
IN
= 2.7V
V
IN
= 3.3V
V
IN
= 3.6V
V
IN
= 4.2V
V
IN
= 5.0V
V
IN
= 5.5V
0.0
-0.3
-0.5
0.1
1
10
100
1000
10000
输出电流(mA )
输出电流(mA )
降压转换器1 V
IH
和V
IL
- 输入电压
(V
EN1
= V
IN
; V
EN2
= 0V; V
EN3
= 0V)
1.0
110
降压转换器1输入电流
- 输入电压
(V
EN1
= V
IN
; V
EN2
= V
EN3
= 0V)
输入电流( μA )
V
IH
和V
IL
(V)
0.9
V
IH
100
90
80
70
60
2.5
0.8
V
IL
0.7
85°C
25°C
-40°C
3
3.5
4
4.5
5
5.5
6
0.6
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
输入电压( V)
输入电压( V)
降压转换器1线路调整
(V
OUT1
= 1.2V ;我
OUT1
= 0.1毫安为1A ; L = 1.7μH )
0.5
0.4
0.3
降压型转换器输出1电压误差
与温度的关系
(V
IN
= 3.3V; V
OUT1
= 1.2V ;我
OUT1
= 1.2A)
输出电压误差(%)
1.00
0.75
0.50
0.25
0.00
-0.25
-0.50
-0.75
-1.00
-50
-25
0
25
50
75
100
精度( % )
0.2
0.1
0.0
-0.1
-0.2
-0.3
-0.4
-0.5
2.5
3.0
3.5
4.0
4.5
I
OUT1
= 0.10毫安
I
OUT1
= 10毫安
I
OUT1
= 100毫安
I
OUT1
= 1200毫安
5.0
5.5
输入电压( V)
温度(℃)
2782.2008.05.1.0
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