参数资料
型号: MAX1951ESA+T
厂商: Maxim Integrated Products
文件页数: 6/15页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 2A 8SOIC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.8 V ~ 5.5 V
输入电压: 2.6 V ~ 5.5 V
PWM 型: 电流模式
频率 - 开关: 1MHz
电流 - 输出: 2A
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
包装: 带卷 (TR)
供应商设备封装: 8-SOIC
1MHz, All Ceramic, 2.6V to 5.5V Input,
2A PWM Step-Down DC-to-DC Regulators
Typical Operating Characteristics (continued)
(Typical values are at V IN = V CC = 5V, V OUT = 1.5V, I OUT = 1.5A, and T A = +25°C, unless otherwise noted. See Figure 2.)
SWITCHING WAVEFORMS
MAX1951 toc08
INDUCTOR CURRENT
SOFT-START WAVEFORMS
MAX1951 toc09
1A/div
V COMP
2V/div
0A
0V
V IN = 3.3V
V OUT = 1.8V
I LOAD = 1.5A
V LX
5V/div
OUTPUT VOLTAGE
10mV/div,
AC-COUPLED
V IN = V CC = 3.3V
V OUT = 2.5V
I LOAD = 1.5A
OUTPUT VOLTAGE
1V/div
200ns/div
SOFT-START WAVEFORMS
MAX1951 toc10
V COMP
2V/div
OUTPUT VOLTAGE
0.5V/div
0V
0V
1ms/div
SHUTDOWN WAVEFORMS
MAX1951 toc11
V COMP
2V/div
V LX
5V/div
1ms/div
V IN = V CC = 3.3V
V OUT = 0.8V
0V
20 μ s/div
V IN = V CC = 3.3V
V OUT = 2.5V
I LOAD = 1.5A
OUTPUT VOLTAGE
1V/div
SHUTDOWN CURRENT
vs. INPUT VOLTAGE
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
INPUT VOLTAGE (V)
6
_______________________________________________________________________________________
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