产品概述
描述
The EVAL5983 demonstration board provides the design engineer with a fully functional step-down switching regulator with an output current of up to 1.5 A. The L5983 integrates STMicroelectronics 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 L5983 device.
The board features an external resistor divider (R1 and R2) designed for an output voltage of 3.3 V.
The output voltage can be set to a level from 0.6 V up to the rated voltage of the output capacitor (16 V).
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.
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所有功能
- Zero-load current operation
- Low dropout operation: 100 % duty cycle
- VFQFPN8 3 mm x 3 mm package
- 1.5 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
- Over-current and thermal protection
- 250 kHz switching frequency, programmable up to 1 MHz
质量与可靠性
| 产品型号 | Marketing Status | 封装 | 等级规格 | 符合RoHS级别 | WEEE Compliant | 材料声明** |
|---|---|---|---|---|---|---|
| EVAL5983 | 批量生产 | CARD | 工业 | Not compliant | - | |
EVAL5983
Package:
CARDMaterial Declaration**:
(**) 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。
样片和购买
| 产品型号 | 供货状态 | Budgetary Price (US$)*/Qty | 从ST订购 | Order from distributors | 封装 | 包装类型 | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | 供应商 | 核心产品 | Board production status | 供应商 | 核心产品 | Board production status | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EVAL5983 | | | distributors 无法联系到经销商，请联系我们的销售办事处 | ITALY | EAR99 | NEC | - | L5983 | - | - | L5983 | - |
EVAL5983 批量生产