具有集成复位指定MSOP8封装250 - mA的LDO稳压器 250-mA LDO REGULATOR WITH INTEGRATED RESET IN A MSOP8 PACKAGE
The TPS779xx is a low-dropout regulator with integrated power-on reset. The device is capable of supplying 250 mA of output current with a dropout of 200 mV TPS77930. Quiescent current is 92 uA at full load dropping down to 1 uA when the device is disabled. The device is optimized to be stable with a wide range of output capacitors including low ESR ceramic 10uF or low capacitance 1uF tantalum capacitors. The device has extremely low noise output performance 55 uVrms without using any added filter capacitors. TPS779xx is designed to have a fast transient response for larger load current changes.
The TPS779xx is offered in 1.8-V, 2.5-V, and 3-V fixed-voltage versions and in an adjustable version programmable over the range of 1.5 V to 5.5 V. Output voltage tolerance is 2% over line, load, and temperature ranges. The TPS779xx family is available in 8-pin MSOP DGK packages.
Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low typically 200 mV at an output current of 250 mA for 3.3 volt option and is directly proportional to the output current. Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output loading typically 92 uA over the full range of output current, 0 mA to 250 mA. These two key specifications yield a significant improvement in operating life for battery-powered systems.
The device is enabled when the EN pin is connected to a high-level input voltage. This LDO family also features a sleep mode; applying a TTL low signal to EN enable shuts down the regulator, reducing the quiescent current to less than 1 uA at TJ = 25°C.
The TPS779xx features an integrated power-on reset, commonly used as a supply voltage supervisor SVS, or reset output voltage. The RESET\ output of the TPS779xx initiates a reset in DSP, microcomputer, or microprocessor systems at power-up and in the event of an undervoltage condition. An internal comparator in the TPS779xx monitors the output voltage of the regulator to detect an undervoltage condition on the regulated output voltage. When OUT reaches 95% of its regulated voltage, RESET\ will go to a high-impedance state after a 220 ms delay. RESET\ will go to low-impedance state when OUT is pulled below 95% i.e. over load condition of its regulated voltage. View datasheet View product folder
输出接口数 1
输入电压DC 10.0V max
输出电压 3 V
输出电流 250 mA
耗散功率 0.412 W
静态电流 90.0 µA
输出电容类型 Tantalum
跌落电压 0.25V @250mA
调节输出数 1
输入电压Max 10 V
输入电压Min 2.7 V
输出电流Max 0.25 A
工作温度Max 125 ℃
工作温度Min 40 ℃
耗散功率Max 412 mW
精度 ±2 %
输入电压 ≤10 V
安装方式 Surface Mount
引脚数 8
封装 VSSOP-8
长度 3 mm
宽度 3 mm
高度 0.97 mm
封装 VSSOP-8
工作温度 -40℃ ~ 125℃
产品生命周期 Active
包装方式 Tube
RoHS标准 RoHS Compliant
含铅标准 Lead Free
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
TPS77930DGK TI 德州仪器 | 当前型号 | 当前型号 |
TPS77930DGKR 德州仪器 | 类似代替 | TPS77930DGK和TPS77930DGKR的区别 |
TPS77930DGKRG4 德州仪器 | 类似代替 | TPS77930DGK和TPS77930DGKRG4的区别 |
TPS77930DGKG4 德州仪器 | 功能相似 | TPS77930DGK和TPS77930DGKG4的区别 |