L6928 High efficiency monolithic synchronous step down regulator
The device is DC-DC monolithic regulator specifically designed to provide extremely high efficiency. L6928 supply voltage can be as low as 2 V allowing its use 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 to 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. L6928 is externally synchronizable with 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.
技术特性
- 2 V to 5.5 V battery input range
- High efficiency: up to 95%
- Internal synchronous switch
- No external Schottky 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 synchronizable from 1 MHz to 2 MHz
- OVP
- Short-circuit protection
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功能框图
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L6928 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 |
| L6928Q1 |
Active |
|
1000 |
VDFPN 8 3x3x1.0 |
Tube |
|
|
| L6928D013TR |
Active |
|
1000 |
MSOP/TSSOP 8 |
Tape And Reel |
|
|
| L6928D |
Active |
|
1000 |
MSOP/TSSOP 8 |
Tube |
|
|
| L6928Q1TR |
Active |
|
1000 |
VDFPN 8 3x3x1.0 |
Tape And Reel |
|
|
DATASHEET
| 描述 |
版本 |
大小 |
| L6928 : DS4152: High efficiency monolithic synchronous step down regulator |
7 |
320KB |
APPLICATION NOTES
| 描述 |
版本 |
大小 |
| AN2115: Designing an application with the L6928, high efficiency monolithic synchronous step-down regulator |
5 |
820KB |
| AN1891: Application ideas: driving LEDs using L497x, L597x, L692x DC-DC converters families |
2 |
301KB |
BOARDS AND TOOLS
| 型号 |
描述 |
| STEVAL-ISA079V1 |
High efficiency monolithic synchronous step-down regulator based on the L6928D |
