参数资料
型号: SC286ULTRT
厂商: Semtech
文件页数: 4/20页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 4A 28MLPQ
标准包装: 1
类型: 降压(降压)
输出类型: 可调式
输出数: 2
输出电压: 0.8 V ~ 3.3 V
输入电压: 2.9 V ~ 5.5 V
PWM 型: 电压模式
频率 - 开关: 1.6MHz
电流 - 输出: 4A
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 28-UFQFN 裸露焊盘
包装: 标准包装
供应商设备封装: 28-MLPQ(4x4)
其它名称: SC286ULDKR
SC286
Electrical Characteristics (continued)
Parameter
Load Regulation
Oscillator Frequency
Symbol
ΔV LOAD-REG
f OSC
Conditions
PVINA/B = AVINA/B = 5.0V, I OUT =800mA to 4A
Min
1.275
Typ
±0.3
1.600
Max
1.925
Units
%
MHz
Soft-Start Charging Current (2)
I SS
+5
μA
Foldback Holding Current
Impedance of PGOOD Low
PGOOD Threshold
PGOOD Delay
CTL X Delay
I CL_HOLD
R PGOOD_LO
V PG_TH
V PG_DLY
t EN_DLY
Average LX Current
VOUTA/B rising
Asserted
PGOODA/B= Low
From CTL X Input High to SS starts rising
1
10
90
2
20
50
A
Ω
%
ms
μs
μs
CTL X Input Current (2)
I CTLx
CTL X =AVINA/B or AGNDA/B
-2.0
2.0
μA
CTL X Input High Threshold
CTL X Input Low Threshold
V CTLx_HI
V CTLx_LO
1.2
0.4
V
V
V OUTA/B Over Voltage Protection
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
V OVP
T SD
T SD_HYS
110
115
160
10
120
%
°C
°C
Notes:
(1) The “Output Voltage Tolerance” includes output voltage accuracy, voltage drift over temperature and the line regulation.
(2) A negative current means the current flows into the pin and a positive current means the current flows out from the pin.
4
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