PM6680 2 adjustable output power controller for notebook PC chipset power
PM6680 is a dual step-down controller specifically designed to provide extremely high efficiency conversion, with lossless current sensing technique. The constant on-time architecture assures fast load transient response and the embedded voltage feed-forward provides nearly constant switching frequency operation. An embedded integrator control loop compensates the DC voltage error due to the output ripple. Pulse skipping technique increases efficiency at very light load. Moreover a minimum switching frequency of 33kHz is selectable to avoid audio noise issues. The PM6680 provides a selectable switching frequency, allowing three different values of switching frequencies for the two switching sections. The output voltages OUT1 and OUT2 can be adjusted from 0.9 V to 5.5 V and from 0.9 V to 3.3 V respectively
技术特性
- 6V to 28V input voltage range
- Adjustable output voltages
- 5V always voltage available deliver 100mA peak current
- 1.237V ±1% reference voltage available
- Lossless current sensing using low side MOSFETs RDS(on)
- Negative current limit
- Soft-start internally fixed at 2ms
- Soft output discharge
- Latched OVP and UVP
- Selectable pulse skipping at light loads
- Selectable minimum frequency (33kHz) in pulse skip mode
- 4mW maximum quiescent power
- Independent power good signals
- Output voltage ripple compensation
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功能框图
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PM6680 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 |
| PM6680TR |
Active |
|
1000 |
VFQFPN 32 5x5x1.0 |
Tape And Reel |
|
|
| PM6680 |
Active |
|
1000 |
VFQFPN 32 5x5x1.0 |
Tube |
|
|
DATASHEET
| 描述 |
版本 |
大小 |
| PM6680 : DS4674: No Rsense dual step-down controller with adjustable voltages for notebook system power |
7 |
2919KB |
APPLICATION NOTES
| 描述 |
版本 |
大小 |
| AN2566: PM6680 evaluation kit dual step-down controller with auxiliary voltages for notebook power system |
3 |
637KB |
| AN2683: Compact dual output point of load converter based on the PM6680 step-down controller |
1 |
593KB |
USER MANUALS
| 描述 |
版本 |
大小 |
| UM0608: ZigBee® smartplug board STEVAL-IHP001V2 |
1 |
1056KB |
BOARDS AND TOOLS
| 型号 |
描述 |
| STEVAL-ISA053V1 |
Demonstration board for the PM6680 dual step-down controller with adjustable output voltage for notebook power system |
