ST1S15 500 mA, 6 MHz synchronous step-down converter
The ST1S15 is a high efficiency miniaturized step-down converter able to provide 500 mA output current from an input voltage from 2.3 to 5.5. This converter is specifically designed for applications where high efficiency and small a application area are the key factors. With an output voltage as low as 0.6 V the device supports low voltage DSPs and processors core supply. Due to the 6 MHz switching frequency the ST1S15 can use nominal values of 470 nH for the inductor and 4.7 μF for the output capacitor, providing, at the same time, very good performance in terms of load and line transients. It is possible to select a PFM mode for high efficiency under light load conditions or PWM mode for tight regulation and best dynamic performance. Short-circuit and thermal protection are also included.
技术特性
- 85% typical efficiency
- 500 mA output current capability
- 45 μA typical quiescent current
- PFM or PWM operation for best efficiency over whole load range
- Ultra-fast load and line transient
- Short-circuit and thermal protection
- Tiny external components
- Auto or forced PWM selection with dedicated pin
- Available in Flip Chip 6 and DFN6 (2 x 2 mm) packages
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应用原理图
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ST1S15 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 |
| ST1S15J28R |
Preview |
|
1000 |
Flip-Chip 400u |
Tape And Reel |
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ST1S15J28R |
| ST1S15J18R |
Preview |
|
1000 |
Flip-Chip 400u |
Tape And Reel |
|
ST1S15J18R |
DATASHEET
| 描述 |
版本 |
大小 |
| ST1S15 : DS9081: 500 mA, 6 MHz synchronous step-down converter |
1 |
3306KB |
