参数资料
型号: SC668ULTRT
厂商: Semtech
文件页数: 37/46页
文件大小: 0K
描述: IC LED DRVR LMU 8CH MLPQUT20
特色产品: Semtech sc667 and sc668
标准包装: 1
拓扑: 线性(LDO),PWM
输出数: 12
内部驱动器:
类型 - 主要: 背光,LED 闪烁器,照明管理装置(LMU)
频率: 400kHz
电源电压: 2.9 V ~ 5.5 V
安装类型: 表面贴装
封装/外壳: 20-UFQFN 裸露焊盘
供应商设备封装: 20-MLPQ(3x3)
包装: 标准包装
工作温度: -40°C ~ 85°C
其它名称: SC668ULDKR
SC668
Register Map (continued)
LDO3 Control Register (0Ch)
This register is used to enable LDO3 and set its output
voltage level.
Bits [D5:D4]
These bits are unused and are always zeroes.
LDO3V3 through LDO3V0 [D3:D0]
These bits are used to set the output voltage of LDO3 as
shown in Table 12.
Table 12 — LDO3 Control Codes
LDO4 Control Register (0Dh)
This register is used to enable LDO4, set its output voltage
level, and provide power for the internal ADC. The ADC
will not function without first turning on LDO4.
The output of LDO4 is used internally to provide the full-
scale reference voltage for the ADC. When the ADC is
active, LDO4 also provides a convenient source of power
for devices such as ambient light sensors, and tempera-
ture sensors.
Bits [D5:D4]
LDO3V3
0
0
0
0
0
LDO3V2
0
0
0
0
1
LDO3V1
0
0
1
1
0
LDO3V0
0
1
0
1
0
V LDO3
OFF
3.3V
3.2V
3.1V
3.0V
These bits are unused and are always zeroes.
LDO4V3 through LDO4V0 [D3:D0]
These bits are used to set the output voltage of LDO4 as
shown in Table 13.
Table 13 — LDO4 Control Codes
0
0
0
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
1
1
0
0
1
1
0
0
1
1
1
0
1
0
1
0
1
0
1
0
1
2.9V
2.8V
2.7V
2.6V
2.5V
2.4V
2.2v
1.8V
1.7V
1.6V
1.5V
LDO4V3
0
0
0
0
0
0
0
0
1
1
LDO4V2
0
0
0
0
1
1
1
1
0
0
LDO4V1
0
0
1
1
0
0
1
1
0
0
LDO4V0
0
1
0
1
0
1
0
1
0
1
V LDO4
OFF
3.3V
3.2V
3.1V
3.0V
2.9V
2.8V
2.7V
2.6V
2.5V
1
1
1
1
1
1
0
0
1
1
1
1
1
1
0
0
1
1
0
1
0
1
0
1
2.4V
2.2V
1.8V
1.7V
1.6V
1.5V
37
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