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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 | Material Declaration** |
|---|---|---|---|---|---|
| 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**:
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
