参数资料
型号: SC402BMLTRT
厂商: Semtech
文件页数: 6/32页
文件大小: 1425K
描述: IC REG DL BCK/LINEAR SYNC 32MLPQ
标准包装: 1
系列: EcoSpeed®, SmartDrive™
拓扑: 降压(降压)同步(1),线性(LDO)(1)
功能: 任何功能
输出数: 2
频率 - 开关: 1MHz
电压/电流 - 输出 1: 可调至 0.6V,10A
电压/电流 - 输出 2: 可调至 0.75V,200mA
带 LED 驱动器:
带监控器:
带序列发生器:
电源电压: 3 V ~ 28 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 32-VFQFN 裸露焊盘
供应商设备封装: 32-MLPQ(5x5)
包装: 标准包装
其它名称: SC402BMLDKR
SC402B
6
Electrical Characteristics (continued)
Parameter
Conditions
Min  Typ  Max  Units
Linear Regulator (LDO)
FBL Accuracy
VLDO load = 5mA
0.728   0.75   0.773   V
LDO Current Limit
Short-circuit protection, V
IN
 = 12V, V
DD
 < 0.75V
65
mA
Start-up and foldback, V
IN
 = 12V,
0.75 < V
DD
 < 90% of final V
DD
 value
115
Operating current limit, V
IN
 = 12V,
V
DD
 > 90% of final V
DD
 value
135   200
VLDO to VOUT Switch-over Threshold
(4)
-130
+130   mV
VLDO to VOUT Non-switch-over Threshold
(4)
-500
+500   mV
VLDO to VOUT Switch-over Resistance
V
OUT
 = +5V
2
&
LDO Drop Out Voltage
(5)
From V
IN
 to V
DD
, V
DD
 = +5V, I
VLDO
 = 100mA
1.2
V
Notes:
(1) V
IN
 UVLO is programmable using a resistor divider from VIN to ENL to AGND. The ENL voltage is compared to an internal reference.
(2) Typical value measured on standard evaluation board.
(3) SC402B has first order temperature compensation for over current. Results vary based upon the PCB thermal layout.
(4) The switch-over threshold is the maximum voltage differential between the VDD and VOUT pins which ensures that VLDO will internally
switch-over to VOUT. The non-switch-over threshold is the minimum voltage differential between the VLDO and VOUT pins which ensures
that VLDO will not switch-over to VOUT.
(5) The LDO drop out voltage is the voltage at which the LDO output drops 2% below the nominal regulation point.
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