STEVAL-ISA090V1 3.5 A step down switching regulator (Vin=8 to 55 V) based on L4973
The STEVAL-ISA090V1 demonstration board provides a platform for evaluation of the L4973, a 3.5 A step-down monolithic power switching regulator operating in continuous mode.
Based on the selection of the external components, the device can operate in the entire input voltage range of 8 V < VIN< 55 V. The output voltage is limited by the voltage rating of the output capacitor, so it can be adjusted within the 3.3 V < VOUT< 30 V range through voltage divider R3, R4. The input and output capacitors are capable of sustaining the RMS current within the operating range.
技术特性
- Input voltage range: 8 V to 55 V
- Output voltage: 5.1 V ± 3% (line, load and thermal)
- Output ripple: 51 mV
- Output current range: 1 mA to 3.5 A
- Max output ripple current: 30%
- Current limit: 4.5 A
- Switching frequency: 150 kHz
- RoHS compliant
| 功能框图
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STEVAL-ISA090V1 订购信息
| 订购型号 |
产品状态 |
美金价格 |
数量 |
封装 |
包装形式 |
温度范围 |
材料声明 |
| STEVAL-ISA090V1 |
Active |
|
1000 |
|
|
|
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DATA BRIEF
| 描述 |
版本 |
大小 |
| STEVAL-ISA090V1 : DB1266: 3.5 A step-down switching regulator based on the L4973 |
1 |
170KB |
APPLICATION NOTES
| 描述 |
版本 |
大小 |
| AN2787: Monolithic VR demonstration board for chipset and DDR2/3 supply for ultramobile PC (UMPC) applications |
1 |
2594KB |
| AN2936: 10 W SMPS with HV power MOSFET and the L6565 for three-phase industrial applications |
1 |
303B |
BILL OF MATERIALS
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PCB LAYOUTS
