参数资料
型号: MAX5951ETJ+T
厂商: Maxim Integrated Products
文件页数: 9/25页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM VM 32-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
PWM 型: 电压模式
输出数: 1
频率 - 最大: 1MHz
占空比: 88%
电源电压: 4.5 V ~ 16 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 32-WFQFN 裸露焊盘
包装: 带卷 (TR)
12V/5V Input Buck PWM Controller
Typical Operating Characteristics (continued)
( Typical Operating Circuits . V IN = 12V or V IN = V REG = 5V, V DREG = V REG , V PGND = 0V, V SYNCIN = 0V, R RT = 49.9k ? , R ILIM = 48.7k ? ,
C REG = 2.2μF, T A = +25°C.)
100
EFFICIENCY vs. LOAD CURRENT
100
EFFICIENCY vs. LOAD CURRENT
90
80
70
90
80
70
V PWM_IN = 5V
60
50
40
V PWM_IN = 8V
V PWM_IN = 12V
V PWM_IN = 5V V PWM_IN = 16V
60
50
40
V PWM_IN = 12V
V PWM_IN = 8V
V PWM_IN = 16V
30
20
30
20
10
0
V OUT = 3.3V
10
0
V OUT = 2.5V
0
0.2
0.4
0.6
0.8
1.0
0
0.2
0.4
0.6
0.8
1.0
100
I LOAD (A)
EFFICIENCY vs. LOAD CURRENT
I LOAD (A)
LOAD-TRANSIENT RESPONSE
MAX5951 toc23
90
80
V IN = 5V
V IN = 8V
I OUT1
1A/div
70
60
50
40
30
V IN = 12V
V IN = 16V
V OUT1
50mV/div
AC-COUPLED
20
10
V OUT = 1.2V
0
0
0.5
1.0
1.5
2.0
2.5
400 μ s/div
I LOAD (A)
LOAD-TRANSIENT RESPONSE
MAX5951 toc24
I OUT1
1.25A
1A/div
0A
V OUT1
20mV/div
AC-COUPLED
400 μ s/div
_______________________________________________________________________________________
9
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