STEVAL-ISA067V1 Dual step-down controller with auxiliary voltages demonstration board based on the PM6681A for industrial system power
This demonstration board is based on the PM6681A, a dual step-down controller with adjustable output voltages that can be used in industrial power systems. The PM6681A demonstration board allows testing all the device's functions and provides two switching sections, with (typically) 3.3 V (OUT1) and 1.8 V (OUT2) outputs from 5.5 V to 36 V input voltage.
The typical operating switching frequency of the two available sections is 200 kHz/300 kHz, respectively. Each switching section delivers more than 2.5 A output current.
An internal linear regulator provides a fixed 5 V output voltage. Another internal linear regulator provides an adjustable output voltage (default 2.5 V). Both linear regulators can deliver up to 100 mA peak current.
技术特性
- 5.5 V to 36 V input voltage range
- Vout1: 3.3 V, Iout1 > 2.5 A (or adjustable output voltage)
- Vout2: 1.8 V, Iout2 > 2.5 A (or adjustable output voltage)
- 0.9 - 3.3 V adjustable LDO delivers 100 mA peak current
- 5 V LDO delivers 100 mA peak current
- 1.237 V ± 1% reference voltage available
- Loss-less current sensing using low-side MOSFET RDS(on)
- Negative current limit
- Soft-start internally fixed at 2 ms
- Soft output discharge
- Latched UVP
- Non-latched OVP
- Selectable pulse-skipping at light loads
- Selectable minimum frequency (33 kHz) in pulse-skip mode
- 4 mW maximum quiescent power
- Independent power-good signals
- Output voltage ripple compensation
- RoHS compliant
| 功能框图
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STEVAL-ISA067V1 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-ISA067V1 |
Preview |
|
1000 |
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DATA BRIEF
| 描述 |
版本 |
大小 |
| STEVAL-ISA067V1 : DB0819: Dual step-down controller with auxiliary voltages demonstration board based on the PM6681A for industrial system power |
1 |
199KB |
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 |
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