ST2S08B Dual synchronous rectification, 1.5 A, 1.5 MHz adjustable step-down switching regulator
The ST2S08B is a dual step-down DC-DC converter optimized for powering low-voltage digital cores in ODD applications and, generally, to replace the high current linear solution when the power dissipation may cause a high heating of the application environment. It provides up to 1.5 A over an input voltage range of 3 V to 5.5 V. A high switching frequency of 1.5 MHz allows the use of tiny surface-mounted components as well as a resistor divider to set the output voltage value. Only an inductor and two capacitors are required. A low output ripple is guaranteed by the current mode PWM topology and the utilization of low ESR SMD ceramic capacitors. The device is thermally protected and current limited. The ST2S08B is available in the QFN12L (4 x 4 mm) package
技术特性
- Step-down current mode PWM (1.5 MHz) DC-DC converter
- Adjustable output voltage from 0.8 V
- 2 % DC output voltage tolerance
- Synchronous rectification
- Integrated current limit
- Inhibit function
- Soft-start for start delay of 800 μs typ.
- Typical efficiency: > 80 % at VOUT= 1.2 V
- 1.5 A output current capability
- Non-switching quiescent current: max 1.5 mA over temperature range
- RDS(ON)150 mΩ (typ.)
- Uses tiny capacitors and inductors
- Available in QFN12L (4 x 4 mm)
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应用原理图
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ST2S08B 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 |
| ST2S08BPQR |
Active |
|
1000 |
VFQFPN 12 4x4x1.0 |
Tape And Reel |
|
ST2S08BPQR |
DATASHEET
| 描述 |
版本 |
大小 |
| ST2S08B : DS7049: Dual synchronous rectification, 1.5 A, 1.5 MHz adjustable step-down switching regulator |
2 |
752KB |
