SP6652 高效同步降压转换器
The SP6652 is a high efficiency, synchronous buck regulator ideal for portable applications using one Li-Ion cell, with up to 1A of output current. The 1.4MHz switching frequency and PWM control loop are optimized for a small value inductor and ceramic output capacitor, for space constrained portable designs. In addition, the input voltage range of 2.7V to 5.5V; excellent transient response, output accuracy, and ability to transition into 100% duty cycle operation -- further extending useful battery life -- make the SP6652 a superior choice for a wide range of portable power applications. A logic level shutdown control, external clock synchronization, and forced-PWM or automatic control inputs are provided. Other features include soft-start, over current protection and 140ºC over-temperature shutdown.
技术特性
- 1A Output Current
- 1.4MHz Constant Frequency Operation
- 97% Efficiency Possible
- 0.5µA (Max.) Shutdown Current
- Adjustable Output Down to 0.75V
- No External FETs or Schottky Diode Required
- Uses Small Value Inductors and Ceramic Output Capacitors
- Low Dropout Operation: 100% Duty Cycle
- Soft Start and Thermal Shutdown Protection
- Easy Frequency Synchonization
- Small (3mm X 3mm) 10 Pin DFN or MSOP Package
功能框图 Functional Block Diagram
|
技术指标
| 输出电流(mA) |
1000 |
| 最低输入电压(V) |
2.8 |
| 最高输入电压(V) |
5.5 |
| 静态电流(µA) |
3000 |
| 最低输出电压(V) |
0.9 |
| 最高输出电压(V) |
5 |
| 频率 |
1400 |
| 效率(%) |
97 |
| 说明书 |
PWM |
应用领域 APPLICATION
- Mobile Phones
- PDAs
- DSCs
- MP3 Players
- USB Devices
- Point of Use Power
订购信息 Ordering Information
| 器件型号 |
封装编码 |
有害物质限制 |
最低温度 |
最高温度 |
状态 |
| SP6652EU-ES |
MSOP10 |
|
0 |
70 |
返修 |
| SP6652EU/TR |
MSOP10 |
|
0 |
70 |
返修 |
| SP6652EU-L |
MSOP10 |
|
0 |
70 |
返修 |
| SP6652LEDEB |
Board |
|
0 |
70 |
运行 |
| SP6652EU-L/TR |
MSOP10 |
|
0 |
70 |
运行 |
| SP6652EU |
MSOP10 |
|
0 |
70 |
OBS |
| SP6652ER |
DFN10 |
|
-40 |
85 |
运行 |
| SP6652EB |
Board |
|
0 |
70 |
运行 |
| SP6652ER/TR |
DFN10 |
|
-40 |
85 |
运行 |
| SP6652ER-L/TR |
DFN10 |
|
0 |
70 |
运行 |
| SP6652ER-L |
DFN10 |
|
-40 |
85 |
运行 |
|
