参数资料
型号: MAX8764ETP+T
厂商: Maxim Integrated Products
文件页数: 6/23页
文件大小: 0K
描述: IC CNTRL STP DWN HS 20-TQFN
标准包装: 2,500
应用: 控制器,笔记本电脑电源系统
输入电压: 2 V ~ 28 V
输出数: 1
输出电压: 1.8V,2.5V,1 V ~ 5.5 V
工作温度: 0°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-WQFN 裸露焊盘
供应商设备封装: 20-TQFN-EP(5x5)
包装: 带卷 (TR)
High-Speed, Step-Down Controller with
Accurate Current Limit for Notebook Computers
__________________________________________Typical Operating Characteristics
(Circuit of Figure 1, V IN = 15V, SKIP = LATCH = GND, TON = unconnected, T A = +25°C, unless otherwise noted.)
100
95
90
EFFICIENCY vs. LOAD CURRENT
350
300
250
FREQUENCY vs. LOAD CURRENT
V IN = 7V, SKIP = V CC
320
310
FREQUENCY vs. INPUT VOLTAGE
85
V IN = 7V
200
V IN = 15V, SKIP = V CC
80
75
V IN = 12V
V IN = 20V
150
300
70
100
V IN = 7V, SKIP = GND
290
I LOAD = 1A
65
50
60
0
V IN = 15V, SKIP = GND
280
0.01
0.1
1
10
0.01
0.1
1
10
0
5
10
15
20
25
30
LOAD CURRENT (A)
FREQUENCY vs. TEMPERATURE
LOAD CURRENT (A)
CONTINUOUS-TO-DISCONTINUOUS INDUCTOR
CURRENT vs. INPUT VOLTAGE
INPUT VOLTAGE (V)
CURRENT LIMIT vs. INPUT VOLTAGE
330
320
310
300
I LOAD = 4A
I LOAD = 1A
800
700
600
500
400
300
200
100
CONTINUOUS INDUCTOR CURRENT
DISCONTINUOUS INDUCTOR CURRENT
8
7
6
5
4
3
2
1
290
-40 -25 -10
5
20
35
50
65
80
0
0
5
10
15
20
25
30
0
0
5
10
15
20
25
30
TEMPERATURE ( ° C)
CURRENT LIMIT vs. TEMPERATURE
INPUT VOLTAGE (V)
NORMALIZED OVERVOLTAGE
TRIP THRESHOLD vs. V OVP
INPUT VOLTAGE (V)
OVERVOLTAGE TRIP THRESHOLD
vs. TEMPERATURE
6
1.8
OVERVOLTAGE TRIP THRESHOLD
120
OUTPUT VOLTAGE SET POINT
118
1.6
5
116
1.4
114
4
1.2
112
3
-40 -25 -10
5
20
35
50
65
80
1.0
1.0
1.2
1.4
1.6
1.8
110
-40
-15
10
35
60
85
TEMPERATURE ( ° C)
V OVP (V)
TEMPERATURE ( ° C)
6
_______________________________________________________________________________________
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