Texas Instruments LMZ217xx SIMPLE SWITCHER®纳米模块调节器
德州仪器 LMZ2050x SIMPLE SWITCHER® 纳米模块调节器是一款易于使用的同步降压直流-直流转换器，它具有非常小的尺寸，用最高达 5.5V 的输入驱动最高达 2A 的负载。采用 3.5mm × 3.5mm × 1.75mm 创新封装，包含了调节器和电感器，从而节约了电路板空间，并免去了选择电感器的时间和成本。LMZ2050x 仅需五个外部元件，而且其引脚分配可实现简单、优化的 PCB 布局。
特性
- Integrated inductor
- Miniature 3.5mm × 3.5mm × 1.75mm package
- 1A (LMZ20501) or 2A (LMZ20502) maximum load current
- Input voltage range of 2.7V to 5.5V
- Adjustable output voltage range of 0.8V to 3.6V
- ±1% Feedback tolerance over temperature
- 2.4µA (max) Quiescent current in shutdown
- 3MHz Fixed PWM switching frequency
- -40°C to 125°C Junction temperature range
- Power good flag function
- Pin-selectable switching modes
- Internal compensation and soft-start
- Current limit, thermal shutdown, and UVLO protection
应用
- Point of load regulation
- Space constrained applications
LMZ2050xEVM Eval Modules
Texas Instruments LMZ2050xEVM Evaluation Modules are capable of driving up to 2A load with excellent power conversion efficiency, output voltage accuracy, line and load regulation and load transient response. Each evaluation board is configured for 1.8V output voltage from 2.375V to 5.5V (LMZ20501EVM) or 2.7V to 5.5V (LMZ20502EVM) input, based on the resistor voltage divider RFBT and RFBB. Each board has a double sided six pin connector and turret terminals for easy connection and input supply, ground and load. The board features: three pin jumpers for EN, mode and frequency response analyses, power good monitoring when connected to a rail, inductor current sensing using a wire loop across the multilayer vias before the output capacitors, jumper option for mode pin to run the part on PFM or PWM at light load, frequency response jumper to measure the response across injection voltage resistor and the enable jumper to measure the quiescent current of the module.
Features Solutions
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