SP6123 低电压, 8管脚, 同步降压控制器
The SP6123 is a fixed frequency, voltage mode, synchronous PWM controller designed to work from a single 5V or 3.3V input supply, providing excellent AC and DC regulation for high efficiency power conversion. Requiring only few external components, the SP6123 packaged in an 8-pin NSOIC, is especially suited for low voltage applications where cost, small size and high efficiency are critical. The operating frequency is internally set to 300kHz (SP6123) or 500kHz (SP6123A), allowing small inductor values and minimizing PC board space. The SP6123 drives an all N-channel synchronous power MOSFET stage for improved efficiency and includes an accurate 0.8V reference for low output voltage applications.
技术特性
- 单电源3V - 5.5V供应的最佳应用
- 高效:可能高于95%最大可超过95％
- 精确的固定Fixed 300kHz (SP6123) 或 500kHz (SP6123A) 工作频率
- 快速瞬间响应
- 内置软启动电路
- 精准的0.8V 参考值，允许低电压输出
- 电阻可编程（可调）输出电压
- 无损耗限流带高度旁路RDS(ON)感应检测上MOS管的RDS(ON)做过流保护，不增加直流损耗
- 打嗝模式限流保护
- 双N-信道沟道MOSFET同步驱动器
- 静态电流:500µA,关断电流30µA
- 8-Pin贴片封装
应用领域 APPLICATION
- DSP
- Microprocessor Core
- I/O & Logic
- Industrial Control
- Distributed Power
- Low Voltage Power
功能框图 Functional Block Diagram
|
技术指标
| 静态电流(µA) |
500 |
| 最低输入电压(V) |
3 |
| 最高输入电压(V) |
5.5 |
| 最低输出电压(V) |
0.8 |
| 最高输出电压(V) |
5 |
| 频率 |
500 |
| 效率(%) |
95 |
| 说明书 |
300 或500kHz |
订购信息 Ordering Information
| 器件型号 |
有害物质限制 |
最低温度 |
最高温度 |
状态 |
立刻购买 |
申请样片 |
| SP6123CY/TR |
|
0 |
70 |
寿命终止 |
|
|
| SP6123EB |
|
0 |
70 |
运行 |
|
|
| SP6123EN/TR |
|
-40 |
85 |
运行 |
|
|
| SP6123CN-L |
|
0 |
70 |
运行 |
|
|
| SP6123CN-L/TR |
|
0 |
70 |
运行 |
|
|
| SP6123CY |
|
0 |
70 |
寿命终止 |
|
|
| SP6123EY/TR |
|
0 |
70 |
寿命终止 |
|
|
| SP6123ACN |
|
0 |
70 |
OBS |
|
|
| SP6123ACN/TR |
|
0 |
70 |
OBS |
|
|
| SP6123EN-L |
|
-40 |
85 |
运行 |
|
|
| SP6123EN-L/TR |
|
-40 |
85 |
运行 |
|
|
| SP6123EY |
|
0 |
70 |
寿命终止 |
|
|
| SP6123ACY |
|
0 |
70 |
寿命终止 |
|
|
| SP6123AEN |
|
0 |
70 |
返修 |
|
|
| SP6123AEN/TR |
|
0 |
70 |
返修 |
|
|
| SP6123CN/TR |
|
0 |
70 |
OBS |
|
|
| SP6123ACN-L |
|
0 |
70 |
运行 |
|
|
| SP6123ACN-L/TR |
|
0 |
70 |
运行 |
|
|
| SP6123AEY |
|
0 |
70 |
寿命终止 |
|
|
| SP6123CN |
|
0 |
70 |
运行 |
|
|
| SP6123AEN-L/TR |
|
0 |
70 |
返修 |
|
|
| SP6123EN |
|
-40 |
85 |
OBS |
|
|
| SP6123AEN-L |
|
0 |
70 |
返修 |
|
