STEVAL-ISA049V1 Synchronous dual buck converter with reset demonstration board based on the ST2S06A
This demonstration board is based on the ST2S06A, a dual synchronous step-down DC-DC converter optimized for powering low-voltage digital cores in ODD applications and, generally, used to replace the high current linear solution when the power dissipation may cause a high heating of the application environment.
It provides up to 0.5 A over an input voltage range of 2.5 V to 5.5 V.
A high switching frequency (1.5 MHz) allows the use of tiny surface-mount components. A resistor divider to set the output voltage value, an inductor and two capacitors are required for every channel.
In addition, a low output ripple is guaranteed by the current mode PWM topology and by the use of low ESR surface-mount ceramic capacitors.
The demonstration board is thermal protected and current limited to prevent damage due to accidental short-circuit.
技术特性
- Step-down current mode PWM (1.5 MHz) DC-DC converter
- Fixed or adjustable output voltage from 0.8 V
- 2% DC output voltage tolerance
- Synchronous rectification
- Reset function
- Internal soft start for start-up current limitation and power ON delay of 50-100 μs
- Typical efficiency: > 90%
- 0.5 A output current capability
- Non-switching quiescent current: max 1 mA over temperature range
- RDS(on) 150 mΩ (typ.)
- Uses tiny capacitors and inductors
- RoHS compliant
| 功能框图
 |
STEVAL-ISA049V1 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-ISA049V1 |
Active |
|
1000 |
|
|
|
|
DATA BRIEF
| 描述 |
版本 |
大小 |
| STEVAL-ISA049V1 : Synchronous dual buck converter with reset demonstration board based on the ST2S06A |
1 |
169KB |
APPLICATION NOTES
| 描述 |
版本 |
大小 |
| AN2371: ST1S06 high frequency synchronous buck converter |
2 |
173KB |
| 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
