概览

优势和特点
产品详情

优势和特点

输入电压范围：1.6V 至 45V
输出电流：200mA
输出放电
静态电流：45μA
压差电压：300mV
低噪声：30μV_RMS (10Hz 至 100kHz)
可调输出 (V_REF = 600mV)
固定输出电压：3.3V、5V
输出容差：±2% (在整个负载、电压和温度范围内)
单个电容器用于实现基准的软起动并降低输出噪声
停机电流：< 3μA
反向电池保护
电流限制折返和热限制保护
8 引脚 2mm x 3mm DFN 封装和 MSOP 封装

产品详情

LT^®3063 是一款微功率、低压差 (LDO) 线性稳压器，其工作在 1.6V 至 45V 的电源范围，它具有固定输出系列和可调版本。该器件可提供 200mA 的输出电流和一个 300mV 的典型压差电压。单个外部电容器提供了可编程低噪声基准性能和输出软起动功能。LT3063 的静态电流仅为 45μA，并利用一个最小 3.3μF 的输出电容器实现了快速瞬态响应。在停机模式中，静态电流小于 3μA，而且基准软起动电容器复位。

LT3063 具有一个 NMOS 下拉电阻器，这负责在 SHDN 或 IN 被驱动至低电平的情况下对输出进行放电。

内部保护电路包括反向电池保护、反向电流保护、具折返的电流限制和热停机。

LT3063 具有 3.3V 和 5V 的固定输出电压，并且可用作具 600mV 基准到高达 19V 输出电压范围的可调器件。LT3063 采用耐热增强型 8 引脚 2mm x 3mm DFN 和 MSOP 封装。

应用

电池供电型系统
汽车电源
工业电源
航空电子设备电源
便携式仪器
医疗仪器

产品分类

电源管理
- 正线性稳压器 (LDO)
- LDO+

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产品生命周期推荐新设计使用

本产品已上市。数据手册包含所有最终性能规格和工作条件。ADI公司推荐新设计使用这些产品。

评估套件 (2)

DC2177A-C

LT3063 Demo Board | Low Noise LDO with Output Discharge, 2.1V ≤ V_IN ≤ 45V, V_OUT = 1.2V/1.5V/1.8V/2V/2.5V/3.3V/5V/Adjustable @ 200mA

DC2177A

LT3063 Demo Board | Low Noise LDO with Output Discharge, 2.1V ≤ V_IN ≤ 45V, V_OUT = 1.2V to 5V @ 200mA

DC2177A-C

查看此评估套件详细信息

Demonstration circuit 2177A-C features the LT3063, a micropower, low noise and low dropout voltage linear regulator with active output discharge. The input voltage ranges from 2.1V to 45V and the maximum output current is 200mA. A resistor divider determines the output voltage, and a jumper adjusts the divider to set the output voltage to either 1.2V, 1.5V, 1.8V, 2V, 2.5V, 3.3V, 5V or a voltage that is user-programmed but requires the installation of a resistor. The output uses a 10μF ceramic capacitor and the internal reference is bypassed with a 10nF capacitor to reduce output noise and program the soft-start. There is also a 10nF feedforward capacitor to improve load transient response and decrease noise at higher output voltages. The position of the VOUTEN jumper either pulls up the SHDN pin to the input supply through a 100k resistor, shorts SHDN to ground or floats the SHDN pin so it can be driven directly by a signal applied to the SHDN terminal. The input supply to the LT3063 is bypassed by a 2.2μF ceramic capacitor and there is also a 50V tantalum polymer capacitor on the input to dampen ringing that may occur when the input is hot-plugged using long leads.

DC2177A

查看此评估套件详细信息

Demonstration circuit 2177A-C features the LT3063, a micropower, low noise and low dropout voltage linear regulator with output discharge. The input voltage ranges from 2.1V to 45V and the maximum output current is 200mA. A resistor divider determines the output voltage, and a jumper adjusts the divider to set the output voltage to either 1.2V, 1.5V, 1.8V, 2V, 2.5V, 3.3V, 5V or a voltage that is user-programmed but requires the installation of a resistor. The output uses a 10μF ceramic capacitor and the internal reference is bypassed with a 10nF capacitor to reduce output noise and program the soft-start. There is also a 10nF feedforward capacitor to improve load transient response and decrease noise at higher output voltages. The position of the VOUTEN jumper either pulls up the SHDN pin to the input supply through a 100k resistor, shorts SHDN to ground or floats the SHDN pin so it can be driven directly by a signal applied to the SHDN terminal. The input supply to the LT3063 is bypassed by a 2.2μF ceramic capacitor and there is also a 50V tantalum polymer capacitor on the input to dampen ringing that may occur when the input is hot-plugged using long leads.