TEXAS INSTRUMENTS TPS61020DRCR 直流/直流转换器/开关式稳压器
The TPS6102x family of devices provide a power supply solution for products powered by either a one-cell, two-cell, or three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-polymer battery. Output currents can go as high as 200 mA while using a single-cell alkaline battery, and discharge it down to 0.9 V. The device can also be used for generating 5 V at 500 mA from a 3.3-V rail or a Li-Ion battery. The boost converter is based on a fixed-frequency, pulse width modulation PWM controller using a synchronous rectifier to obtain maximum efficiency. At low load currents the converter enters the power save mode to maintain a high efficiency over a wide-load current range. The Power Save mode can be disabled, forcing the converter to operate at a fixed switching frequency. The maximum peak current in the boost switch is limited to a value of 800 mA, 1500 mA, or 1800 mA depending on the version of the device.
The TPS6102x devices keep the output voltage regulated even when the input voltage exceeds the nominal output voltage. The output voltage can be programmed by an external resistor divider, or is fixed internally on the chip. The converter can be disabled to minimize battery drain. During shutdown, the load is completely disconnected from the battery. A low-EMI mode is implemented to reduce ringing and, in effect, lower radiated electromagnetic energy when the converter enters the discontinuous conduction mode. The device is packaged in a 10-pin VSON PowerPAD package measuring 3 mm x 3 mm DRC.
频率 720 kHz
电源电压DC 900mV min
额定电流 25.0 mA
输出接口数 1
输出电压 1.8V ~ 5.5V
输出电流 1.5 A
针脚数 10
静态电流 25.0 µA
调节输出数 1
开关频率 720 kHz
拓扑结构 Boost
输入电压Max 6.5 V
输入电压Min 0.9 V
输出电压Max 5.5 V
输出电压Min 1.8 V
输出电流Max 1.2 A
工作温度Max 85 ℃
工作温度Min -40 ℃
电源电压 0.9 V
输入电压 0.9V ~ 6.5V
安装方式 Surface Mount
引脚数 10
封装 VSON-10
长度 3 mm
宽度 3 mm
高度 0.9 mm
封装 VSON-10
工作温度 -40℃ ~ 85℃
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
REACH SVHC标准 No SVHC
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
TPS61020DRCR TI 德州仪器 | 当前型号 | 当前型号 |
TPS61020DRCRG4 德州仪器 | 类似代替 | TPS61020DRCR和TPS61020DRCRG4的区别 |