快速瞬态响应500 mA低压差稳压器 FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS
The TPS775xx and TPS776xx devices are designed to have a fast transient response and be stable with a 10-µF low ESR capacitors. This combination provides high performance at a reasonable cost.
Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low typically 169 mV at an output current of 500 mA for the TPS77x33 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 85 \xECA over the full range of output current, 0 mA to 500 mA. These two key specifications yield a significant improvement in operating life for battery-powered systems. This LDO family also features a sleep mode; applying a TTL high signal to EN enable shuts down the regulator, reducing the quiescent current to 1 µ at TJ = 25&DEC.
The RESET output of the TPS775xx initiates a reset in microcomputer and microprocessor systems in the event of an undervoltage condition. An internal comparator in the TPS775xx monitors the output voltage of the regulator to detect an undervoltage condition on the regulated output voltage.
Power good PG of the TPS776xx is an active high output, which can be used to implement a power-on reset or a low-battery indicator.
The TPS775xx and TPS776xx are offered in 1.5-V, 1.6-V TPS77516 only, 1.8-V, 2.5-V, 2.8 V TPS77628 only, and 3.3-V fixed-voltage versions and in an adjustable version programmable over the range of 1.5 V to 5.5 V for TPS77501 option and 1.2 V to 5.5 V for TPS77601 option. Output voltage tolerance is specified as a maximum of 2% over line, load, and temperature ranges. The TPS775xx and TPS776xx families are available in 20 pin TSSOP package.
输出接口数 1
输入电压DC 10.0V max
输出电压 3.3 V
输出电流 500 mA
供电电流 125 µA
耗散功率 7.2 W
静态电流 0.085 mA
输出电容类型 Tantalum
跌落电压 0.169V @500mA
调节输出数 1
输入电压Max 10 V
输入电压Min 2.7 V
输出电压Min 3.3 V
输出电流Max 0.5 A
工作温度Max 125 ℃
工作温度Min 40 ℃
耗散功率Max 7200 mW
精度 ±2 %
输入电压 ≤10 V
安装方式 Surface Mount
引脚数 20
封装 HTSSOP-20
长度 6.5 mm
宽度 4.4 mm
高度 1.15 mm
封装 HTSSOP-20
工作温度 -40℃ ~ 125℃
产品生命周期 Active
包装方式 Tape & Reel TR
RoHS标准 RoHS Compliant
含铅标准 Lead Free