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The device is a DC-DC monolithic regulator specifically designed to provide high efficiency. The L6928 supply voltage can be as low as 2 V to be used in single Li-Ion cell supplied applications. Output voltage can be selected by an external divider down to 0.6 V. Duty cycle can saturate 100% allowing low-dropout operation. The device is based on a 1.4 MHz fixed frequency, current mode architecture. Low consumption mode operation can be selected at light load conditions, allowing switching losses to be reduced. The L6928 is externally synchronized by a clock, which makes it useful in noise sensitive applications. Other features like Power Good, overvoltage protection, short-circuit protection and thermal shutdown (150 °C) are also present.
主要特性
- 2 V to 5.5 V battery input range
- High efficiency: up to 95%
- Internal synchronous switch
- No external Schottky diode required
- Extremely low quiescent current
- 1 µA max. shutdown supply current
- 800 mA max. output current
- Adjustable output voltage from 0.6 V
- Low-dropout operation: up to 100% duty cycle
- Selectable low noise/low consumption mode at light load
- Power Good signal
- ± 1% output voltage accuracy
- Current mode control
- 1.4 MHz switching frequency
- Externally synchronized from 1 MHz to 2 MHz
- OVP
- Short-circuit protection
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Picture 产品型号 制造商 描述 
STEVAL-ISA079V1 -- High efficiency monolithic synchronous step-down regulator based on the L6928D 
STEVAL-ISA079V2 -- High-efficiency monolithic synchronous step-down regulator based on the L6928 产品型号High efficiency monolithic synchronous step-down regulator based on the L6928D
High-efficiency monolithic synchronous step-down regulator based on the L6928
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| 产品型号 | 供货状态 | 封装 | 等级规格 | 符合RoHS级别 | 材料声明** |
|---|---|---|---|---|---|
| L6928D013TR | 批量生产 | MSOP/TSSOP 8 | 工业 | Ecopack2 | |
| L6928Q1TR | 批量生产 | DFN8 3x3 | 工业 | Ecopack2 | |
L6928D013TR
Package:
MSOP/TSSOP 8Material Declaration**:
L6928Q1TR
Package:
DFN8 3x3Material Declaration**:
(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此，它们可能不是100%适用于特定的设备。有关特定设备的信息，请联系 销售支持 。
