参数资料
型号: LTC3100EUD#PBF
厂商: Linear Technology
文件页数: 21/26页
文件大小: 403K
描述: IC REG BUCK/BOOST/LINEAR 16-QFN
产品培训模块: More Information on LDOs
标准包装: 121
拓扑: 降压(降压)(1),升压(升压)(1),线性(LDO)(1)
功能: 任何功能
输出数: 3
频率 - 开关: 1.5MHz
电压/电流 - 输出 1: 0.6 V ~ 5.5 V,250mA
电压/电流 - 输出 2: 1.5 V ~ 5.25 V,700mA
电压/电流 - 输出 3: 0.6 V ~ 5.25 V,100mA
带 LED 驱动器:
带监控器:
带序列发生器:
电源电压: 0.5 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-WFQFN 裸露焊盘
供应商设备封装: 16-QFN-EP(3x3)
包装: 管件
LTC3100
21
3100fb
For more information www.linear.com/LTC3100
APPLICATIONS INFORMATION
LDO Output Capacitor Selection
The LDO is designed to be stable with a minimum 1礔
output capacitor. No series resistor is required when using
low ESR capacitors. For most applications, a 2.2礔 ceramic
capacitor is recommended. Larger values will improve
transient response, and raise the power supply rejection
ratio (PSRR) of the LDO. Refer to the Typical Performance
Characteristics for the allowable range of output capacitor
to ensure loop stability.
LDO Output Voltage Programming
The output voltage is set by a resistive divider according
to the following formula:
 
V
OUT
=0.600V" 1+
R4
R3
?/DIV>
?/DIV>
?/DIV>
?/DIV>
?/DIV>
?/DIV>
The external divider is connected to the output as shown
in the Block Diagram. For improved transient response,
a feedforward capacitor may be placed in parallel with
resistor R4.
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