参数资料
型号: LP2951-03YM TR
厂商: Micrel Inc
文件页数: 10/17页
文件大小: 0K
描述: IC REG LDO ADJ .1A 8-SOIC
标准包装: 2,500
稳压器拓扑结构: 正,可调式
输出电压: 1.24 V ~ 29 V
输入电压: 2.3 V ~ 30 V
电压 - 压降(标准): 0.38V @ 100mA
稳压器数量: 1
电流 - 输出: 100mA
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 带卷 (TR)
其它名称: LP2951-03YMTR
LP2951-03YMTR-ND
Micrel, Inc.
Noise can be reduced fourfold by a bypass capacitor
across R 1 , since it reduces the high frequency gain from
4 to unity. Pick:
LP2950/2951
C BYPASS ?
1
2 π R 1 ? 200Hz
or about 0.01μF. When doing this, the output capacitor
must be increased to 3.3μF to maintain stability. These
changes reduce the output noise from 430μV to
100μVrms for a100kHz bandwidth at 5V output. With the
bypass capacitor added, noise no longer scales with
output voltage so that improvements are more dramatic
at higher output voltages.
Figure 1. ERROR Output Timing
Figure 2. Adjustable Regulator
September 2008
10
M9999-091208
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