STEVAL-ISA083V1 4 A peak 800 kHz fixed-frequency PWM synchronous step-down demonstration board with enable on/off based on the ST1S40IPUR
The STEVAL-ISA083V1, based on the ST1S40IPUR, is an internally compensated 800 kHz fixed-frequency PWM synchronous step-down converter demonstration board.
The ST1S40 operates from 4.0 V to 18.0 V input, while it regulates an output voltage as low as 0.8 V and up to VIN(100% duty cycle).
The ST1S40 integrates a 95 mΩ high-side switch and a 69 mΩ synchronous rectifier allowing very high efficiency with very low output voltage.
The peak current mode control with internal compensation delivers a very compact solution with a minimum component count.
The ST1S40 is protected through cycle-by-cycle current limiting in case of overload and is also protected by a current foldback function with frequency reduction in case of short-circuit.
The device is available with an enable on/off function.
技术特性
- Input voltage Vin: 4 V to 18 V
- Output voltage Vout : 3.3 V
- Maximum output current: 4 A
- Switching frequency: 800 kHz
- Short-circuit protected
- RoHS compliant
| 功能框图
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STEVAL-ISA083V1 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-ISA083V1 |
Active |
|
1000 |
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DATA BRIEF
| 描述 |
版本 |
大小 |
| STEVAL-ISA083V1 : DB1449: 4 A peak 800 kHz fixed-frequency PWM synchronous step-down demonstration board with enable on/off based on the ST1S40IPUR |
1 |
110KB |
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
SCHEMATIC PACKS
PCB LAYOUTS
