参数资料
型号: MAX8720ETX+T
厂商: Maxim Integrated Products
文件页数: 8/31页
文件大小: 0K
描述: IC CNTRL VID STP DWN 36-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
应用: 控制器,CPU GPU
输入电压: 2 V ~ 28 V
输出数: 1
输出电压: 0.28 V ~ 1.85 V
工作温度: 0°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 36-WFQFN 裸露焊盘
供应商设备封装: 36-TQFN 裸露焊盘(6x6)
包装: 带卷 (TR)
Dynamically Adjustable 6-Bit VID
Step-Down Controller
Typical Operating Characteristics (continued)
(MAX8720 Circuit of Figure 1, V IN = 12V, V DD = V CC = 5V, TON = open, T A = +25°C, unless otherwise noted.)
1.25V
0
STARTUP WAVEFORMS (NO LOAD)
MAX8720 toc08
A
1.25V
0
STARTUP WAVEFORMS (HEAVY LOAD)
MAX8720 toc09
A
0
5V
0
5A
0
B
C
D
0
5V
0
10A
0
B
C
D
-5A
500 μ s/div
I OUT = NO LOAD
A = V OUT , 500mV/div C = SHDN, 5V/div
500 μ s/div
I OUT = 10A
A = V OUT , 500mV/div C = SHDN, 5V/div
B = PGOOD, 5V/div
D = INDUCTOR CURRENT, 5A/div
B = PGOOD, 5V/div
D = INDUCTOR CURRENT, 10A/div
LOAD TRANSIENT
1.25V
V CC UVLO WAVEFORM
MAX8720 toc10
(SKIP MODE)
MAX8720 toc11
4V
A
1.25V
A
0
B
12V
B
5V
C
0
0
0
C
0
1.25V
2ms/div
I OUT = 1A
C = DL, 5V/div
A = V OUT , 500mV/div
D = PGOOD, 5V/div
B = V CC , 2V/div
LOAD TRANSIENT
(PWM MODE)
MAX8720 toc12
D
A
10A
0
1.65V
D
20 μ s/div
SKIP = GND, I OUT = 1A TO 11A TO 1A
A = V OUT , 50mV/div C = CONTROL, 5V/div
B = LX, 10V/div D = INDUCTOR CURRENT, 10A/div
DYNAMIC OUTPUT VOLTAGE TRANSITION
(SKIP MODE)
MAX8720 toc13
A
12V
0
B
1.25V
12V
0
B
0
10A
0
C
D
0
10A
0
C
D
-10A
20 μ s/div
SKIP = V CC , I OUT = 1A TO 11A TO 1A
50 μ s/div
SKIP = GND, I OUT = 0.2A
A = V OUT , 50mV/div
B = LX, 10V/div
C = CONTROL, 5V/div
D = INDUCTOR CURRENT, 10A/div
A = V OUT , 200mV/div C = D4, 5V/div
B = LX, 10V/div D = INDUCTOR CURRENT, 10A/div
8
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