参数资料
型号: SC668ULTRT
厂商: Semtech
文件页数: 4/46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
Electrical Characteristics (continued)
Parameter
Symbol
Conditions
Min
Typ
Max
Units
LDO Electrical Specifications
LDO1, LDO3, and LDO4
Voltage Setting Range
LDO2 Voltage Setting Range
V LDOm (6)
V LDO2
Range of nominal settings
Range of nominal settings
1.5
1.2
3.3
1.8
V
V
Output Voltage Accuracy
Dropout Voltage
?V LDO
V Dm (6)
I LDOn (6) = 1mA, T A = 25°C, 2.9V ≤ V IN ≤ 4.2V
I LDOn (6) = 1mA to 100mA, 2.9V ≤ V IN ≤ 4.2V
I LDOm (6) = 150mA, V IN = V LDOm + V Dm
-3
-3.5
±1.0
150
+3
+3.5
200
%
%
mV
V D2
I LDO2 = 100mA, V IN = V LDO2 + V D2
100
150
Current Limit
I LIM
200
mA
Line Regulation
Load Regulation
Power Supply Rejection Ratio
Output Voltage Noise
Minimum LDO Capacitor (1)
D V LINE
D V LOAD
PSRR m (6)
PSRR 2
e n-LDOm (6)
e n-LDO2
C LDO(MIN)
I LDOm (6) = 1mA, V IN = 2.9V to 4.2V, V LDOm = 2.8V
I LDO2 = 1mA, V IN = 2.9V to 4.2V, V LDO2 = 1.8V
V LDOm (6) = 3.3V, I LDOm = 1mA to 100mA
V LDO2 = 1.8V, I LDO2 = 1mA to 100mA
1.5V < V LDOm < 3.0V, f < 10kHz, C BYP = 22nF,
I LDOm = 50mA, with 0.5V P-P supply ripple
1.2V < V LDO2 < 1.8V, f < 10kHz, C BYP = 22nF,
I LDO2 = 50mA, with 0.5V P-P supply ripple
10Hz < f < 100kHz, C BYP = 22nF,
C LDOm = 1μF, I LDOm = 50 mA, 1.5V < V LDOm < 3.0V
10Hz < f < 100kHz, C BYP = 22nF,
C LDO2 = 1μF, I LDO2 = 50 mA, 1.2V < V LDO2 < 1.8V
Nominal value for C LDOn (6)
1
2.1
1.3
10
8
53
61
67
47
7.2
4.8
25
20
mV
mV
dB
μV RMS
μF
ADC Specifications
Resolution
AD RES
8
bits
Offset
Gain Error
Integral Non-Linearity
AD OFFSET
AD GAIN_ERR
INL
V LDO4 = 3.3V
V LDO4 = 3.3V
V LDO4 = 3.3V
1
0.1
1
LSB
%
LSB
4
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