产品概述
描述
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.
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所有功能
- 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
电路原理图
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EDA符号、封装和3D模型
STMicroelectronics - L6928
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符号
封装
3D模型
质量与可靠性
| 产品型号 | Marketing Status | 封装 | 等级规格 | 符合RoHS级别 | 材料声明** |
|---|---|---|---|---|---|
| L6928D013TR | 批量生产 | MiniSO-8 | 工业 | Ecopack2 | |
| L6928Q1TR | 批量生产 | QFN-8L P 0.5 mm | 工业 | Ecopack2 | |
L6928D013TR
Package:
MiniSO-8Material Declaration**:
L6928Q1TR
Package:
QFN-8L P 0.5 mmMaterial 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。
样片和购买
| 产品型号 | Order from distributors | 从ST订购 | 供货状态 | ECCN (US) | ECCN (EU) | 包装类型 | 封装 | 温度（ºC） | Country of Origin | Budgetary Price (US$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | |||||||||||
| L6928Q1TR | distributors 无法联系到经销商，请联系我们的销售办事处 | 批量生产 | EAR99 | NEC | Tape and Reel | QFN-8L P 0.5 mm | - | - | MALAYSIA | | ||
| L6928D013TR | distributors 无法联系到经销商，请联系我们的销售办事处 | 批量生产 | EAR99 | NEC | Tape and Reel | MiniSO-8 | - | - | PHILIPPINES | | ||