L7980 2 A step-down switching regulator
The L7980 is a step down switching regulator with 2.5 A (minimum) current limited embedded power MOSFET, so it is able to deliver up to 2 A current to the load depending on the application conditions.
The input voltage can range from 4.5 V to 28 V, while the output voltage can be set starting from 0.6 V to VIN.
Requiring a minimum set of external components, the device includes an internal 250 kHz switching frequency oscillator that can be externally adjusted up to 1 MHz.
The QFN and the HSOP packages with exposed pad allow reducing the RthJAdown to 60 °C/W and 40 °C/W respectively
技术特性
- 2 A DC output current
- 4.5 V to 28 V input voltage
- Output voltage adjustable from 0.6 V
- 250 kHz switching frequency, programmable up to 1 MHz
- Internal soft-start and enable
- Low dropout operation: 100% duty cycle
- Voltage feed-forward
- Zero load current operation
- Overcurrent and thermal protection
- VFQFPN3x3-8L and HSOP8 package
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功能框图
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L7980 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 |
| L7980A |
Active |
|
1000 |
PowerSO-8 |
Tube |
|
|
| L7980ATR |
Active |
|
1000 |
PowerSO-8 |
Tape And Reel |
|
|
| L7980TR |
Active |
|
1000 |
VDFPN 8 3x3x1.0 |
Tape And Reel |
|
|
| L7980 |
Active |
|
1000 |
VDFPN 8 3x3x1.0 |
Tube |
|
|
DATASHEET
| 描述 |
版本 |
大小 |
| L7980 : 2 A step-down switching regulator |
4 |
1235KB |
DESIGN NOTES
| 描述 |
版本 |
大小 |
| DN0011: ST1S03 alternative topology: Using a buck in a negative buck-boost configuration |
1.0 |
360KB |
FLYERS
| 描述 |
版本 |
大小 |
| FLL79801011: L7980: switching regulator for LED lighting |
1.0.0 |
233KB |
