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参数资料
| 型号： | MAX8734AEEI+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 8/33页 |
| 文件大小： | 0K |
| 描述： | IC PWR SUPPLY CONTROLLER 28QSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | 电源控制器 |
| 输入电压： | 4.5 V ~ 24 V |
| 电流 - 电源： | 25µA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-QSOP |
| 供应商设备封装： | 28-QSOP |
| 包装： | 带卷 (TR) |
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High-Efficiency, Quad-Output, Main Power-
Supply Controllers for Notebook Computers
Typical Operating Characteristics
(Circuit of Figure 1 and Figure 2, no load on LDO5, LDO3, OUT3, OUT5, and REF, V+ = 12V, ON3 = ON5 = V CC , SHDN = V+,
R CS = 7m ? , V ILIM _ = 0.5V, T A = +25°C, unless otherwise noted.)
MAX8732A
5V OUTPUT EFFICIENCY
vs. LOAD CURRENT
MAX8732A
5V OUTPUT EFFICIENCY
vs. LOAD CURRENT
MAX8732A
5V OUTPUT EFFICIENCY
vs. LOAD CURRENT
100
90
PFM MODE
100
90
PFM MODE
100
90
PFM MODE
80
80
80
70
PWM MODE
70
70
60
60
PWM MODE
60
PWM MODE
50
40
ULTRASONIC MODE
50
40
ULTRASONIC MODE
50
40
ULTRASONIC MODE
30
30
30
20
10
V IN = 7V
ON5 = V CC
ON3 = GND
20
10
V IN = 12V
ON5 = V CC
ON3 = GND
20
10
V IN = 24V
ON5 = V CC
ON3 = GND
0
0
0
0.001
0.01
0.1
1
10
0.001
0.01
0.1
1
10
0.001
0.01
0.1
1
10
LOAD CURRENT (A)
MAX8733A
3.3V OUTPUT EFFICIENCY
vs. LOAD CURRENT
LOAD CURRENT (A)
MAX8732A
NO-LOAD BATTERY CURRENT
vs. INPUT VOLTAGE
LOAD CURRENT (A)
MAX8733A
NO-LOAD BATTERY CURRENT
vs. INPUT VOLTAGE
100
90
PFM MODE
100
PWM MODE
100
PWM MODE
80
70
60
10
ULTRASONIC MODE
10
ULTRASONIC MODE
50
40
ULTRASONIC MODE
30
ON5 = V CC
ON3 = V CC
1
PFM MODE
1
PFM MODE
20
V IN = 7V
10
PWM MODE
V IN = 12V
V IN = 24V
0
0.001
0.01
0.1
1
10
0.1
7
10
13
16
19
22
25
0.1
7
10
13
16
19
22
25
LOAD CURRENT (A)
STANDBY INPUT CURRENT
vs. INPUT VOLTAGE
INPUT VOLTAGE (V)
SHUTDOWN INPUT CURRENT
vs. INPUT VOLTAGE
INPUT VOLTAGE (V)
MAX8732A
5V OUTPUT SWITCHING FREQUENCY
vs. LOAD CURRENT MAX8732A
190
188
186
10.0
9.5
9.0
250
225
200
V IN = 7V
184
182
180
MAX8732A
8.5
8.0
7.5
MAX8732A
MAX8733 A
175
150
125
PWM MODE
178
7.0
100
176
MAX8733A
6.5
75
174
172
170
6.0
5.5
5.0
50
25
0
ULTRASONIC MODE
PFM MODE
7
10
13
16
19
22
25
7
10
13
16
19
22
25
0.001
0.01
0.1
1
10
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
LOAD CURRENT (A)
_______________________________________________________________________________________
8
Idle Mode is a trademark of Maxim Integrated Products, Inc.
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