L5962 Voltage regulator with dc-dc plus switchable linear regulators controlled by I²C bus
L5962 is a very versatile device exploiting BCD technology characteristics to provide a complete set of regulated voltages covering all the needs of a car-radio set.
In standby condition the device guarantees extremely low quiescent current (90 μA max - 40 °C < T < 85 °C) and minimum operating voltage (4.5 V using an external Schottky diode for the back-up function).
技术特性
- Step-down synchronous switching voltage regulator
- Internal high-side/ Low-side NDMOS
- 1.2 < Vout < 8 V selectable through external resistors
- 1.2/2.5 A load current selected through dedicated pin
- 185 kHz free-run frequency
- SYNC function (220 < fsw < 400 kHz)
- Linear regulators
- 3.3/5 V @ 150 mA standby regulator selected through dedicated pin (VSTBYSEL)
- 5/8.5 V @ 350 mA switched linear regulator enabled and selected through I²C bus (VLR1)
- 3.3/10 V @ 1 A switched linear regulator enabled and selected through I²C bus (VLR2)
- 2 High side drivers (0.5 V max drop @ 0.5 A) enabled through I²C bus and equipped with protection circuit against:
- short to ground and battery
- loss of ground and battery
- unsupplied short to battery
- Reset function with configurable delay (RST, RSTDLY)
- I²C bus
- Enable pin to drive switching regulator and I²C bus logic
- Under/over voltage battery detector (VBATVW)
- Under voltage threshold adjustable through dedicated pin (LVWIN)
- Load dump protection
- Independent thermal protection on all regulators
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功能框图
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L5962 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 |
| L5962 |
Active |
4.446 |
1000 |
PowerSO 36 |
Tube |
|
L5962 |
| L5962TR |
Active |
4.446 |
1000 |
PowerSO 36 |
Tape And Reel |
|
L5962TR |
DATASHEET
| 下载 |
描述 |
版本 |
大小 |
| L5962 |
Multiple linear/switching voltage regulator for car-radio |
2 |
243KB |
