The EVAL5987/A demonstration board provides the design engineer with a fully functional stepdown switching regulator with an output current of up to 3 A. The board integrates STMicroelectronics L5987/A step-down switching regulator, together with all the external components required for a typical application.
The rated voltage of the input capacitor and the Schottky diode rectifier repetitive peak reverse voltage are both 25 V, making the board capable of covering the entire 2.9 V - 18 V input voltage range of the L5987/A device.
The board features an external resistor divider (R1 and R2) designed for an output voltage of 1.8 V.
The output voltage can be set to a level from 0.6 V up to the input voltage.
The compensation network on the demonstration board allows the use of MLCC as output filter to keep the loop stable. The inductor saturation current and forward current of the Schottky diode are within the current limit values.
The switching frequency on the demonstration board is set to 500 kHz by means of the R5 resistor connected to pin Fsw.
- Zero-load current operation
- Low dropout operation: 100% duty cycle
- VFQFPN8 3 mm x 3 mm package or HSOP8 for the L5987A
- 3 A DC output current
- Output voltage adjustable from 0.6 V to 16 V
- 2.9 V to 18 V input voltage
- Internal soft-start and inhibit
- Overcurrent and thermal protection
- 250 kHz switching frequency, programmable up to 1 MHz
|产品型号||Marketing Status||封装||等级规格||符合RoHS级别||WEEE Compliant||材料声明**|
RoHS Compliance Grade
(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此，它们可能不是100%适用于特定的设备。有关特定设备的信息，请联系 销售支持 。
|产品型号||从分销商订购||从ST订购||核心产品||供货状态||供应商||ECCN (US)||ECCN (EU)||Country of Origin||Board production status||Budgetary Price (US$)*/Qty|