参数资料
型号: MAX8664BEEP+T
厂商: Maxim Integrated Products
文件页数: 4/26页
文件大小: 0K
描述: IC CNTRLR DUAL OUT 20-QSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
应用: 电源
电流 - 电源: 1.4mA
电源电压: 4.5 V ~ 28 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-SSOP(0.154",3.90mm 宽)
供应商设备封装: 20-QSOP
包装: 带卷 (TR)
Low-Cost, Dual-Output, Step-Down
Controller with Fast Transient Response
Typical Operating Characteristics
(Circuit of Figure 2, 600kHz, V IN = 12V, V OUT1 = 2.5V, V OUT2 = 1.8V, T A = +25°C, unless otherwise noted.)
100
EFFICIENCY vs. LOAD CURRENT
(600kHz, FIGURE 2)
100
EFFICIENCY vs. LOAD CURRENT
(1MHz, FIGURE 4)
2.55
LOAD REGULATION
(600kHz, FIGURE 2)
90
80
90
80
V OUT1 = 2.5V
2.54
2.53
70
70
2.52
I OUT2 = 8A
I OUT2 = 4A
60
50
40
V OUT = 2.5V
60
50
40
V OUT1 = 1.8V
2.51
2.50
2.49
30
V OUT = 1.8V
30
2.48
I OUT2 = 0A
20
10
0
NO LOAD ON THE
OTHER REGULATOR
20
10
0
V IN = 3.3V
V VL = 5V
NO LOAD ON OUT2
2.47
2.46
2.45
0.1
1
10
0.1
1
10
0
2
4
6
8
10
2.55
2.54
LOAD CURRENT (A)
LINE REGULATION
(600kHz, FIGURE 2)
250
LOAD CURRENT (A)
R OSC/EN12 vs. SWITCHING FRQUENCY
OUT1 LOAD CURRENT (A)
OUT1 LOAD TRANSIENT (FIGURE 2)
MAX8664 toc06
2.53
2.52
8A LOAD
200
2.51
150
V OUT2
100mV/div
2.50
2.49
2.48
100
I OUT2
2.5A
5A
2.5A
2A/div
2.47
2.46
NO LOAD
50
2.45
6
8
10
12
14
16
18
20
0
100
400 700
1000
20 μ s/div
INPUT VOLTAGE (V)
LOAD TRANSIENT
SWITCHING FREQUENCY (kHz)
-3A TO +3A TO -3A (FIGURE 3)
MAX8664 toc07
POWER-UP WAVEFORMS
MAX8664 toc08
10V/div
V OUT1
50mV/div
V IN
2V/div
V OUT2
+3A
50mV/div
V OUT1
V OUT2
2V/div
I OUT2
-3A
-3A
5A/div
5V/div
V PRWGD
100 μ s/div
1ms/div
4
_______________________________________________________________________________________
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