參數(shù)資料
型號(hào): SC427MLTRT
廠商: Semtech
文件頁數(shù): 4/33頁
文件大?。?/td> 894K
描述: IC REG DL BUCK/LINEAR 32MLPQ
標(biāo)準(zhǔn)包裝: 1
系列: EcoSpeed®, SmartDrive™
拓?fù)洌?/td> 降壓(降壓)(1),線性(LDO)(1)
功能: 任何功能
輸出數(shù): 2
頻率 - 開關(guān): 1MHz
電壓/電流 - 輸出 1: 可調(diào),10A
電壓/電流 - 輸出 2: 5V,200mA
帶 LED 驅(qū)動(dòng)器:
帶監(jiān)控器:
帶序列發(fā)生器:
電源電壓: 3 V ~ 28 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 32-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 32-MLPQ(5x5)
包裝: 標(biāo)準(zhǔn)包裝
其它名稱: SC427MLDKR
SC417/SC427
4
Electrical Characteristics (continued)
Parameter
Conditions
Min  Typ  Max  Units
Input Supplies (continued)
V5V Supply Current
ENL , EN/PSV = 0V
3
7    糀
SC417, EN/PSV = V5V, no load (f
SW
 = 25kHz),
V
FB
 > 500mV
(2)
2
mA
SC427, EN/PSV = V5V, no load, V
FB
 > 500mV
(2)
0.7
f
SW
 = 250kHz, EN/PSV = floating , no load
(2)
10
FB On-Time Threshold
Static V
IN
 and load, 0 to +85 癈
0.496  0.500  0.504   V
Static V
IN
 and load, -40 to +85 癈
0.495
0.505   V
Frequency Range
Continuous mode operation
200
1000
kHz
Minimum f
SW
, (SC417 only), EN/PSV = V5V, no load
25
Bootstrap Switch Resistance
10
&
Timing
On-Time
Continuous mode operation,
V
IN
 = 15V, V
OUT
 = 5V, f
SW
= 300kHz, R
TON
 = 133k&
999   1110   1220   ns
Minimum On-Time
(2)
80
ns
Minimum Off-Time
(2)
250
ns
Soft-Start
Soft-Start Ramp Time
(2)
850
Analog Inputs/Outputs
VOUT Input Resistance
500
k&
Current Sense
Zero-Crossing Detector Threshold
LX - PGND
-3    0    +3   mV
Power Good
Power Good Threshold
Upper limit, V
FB
 > internal 500mV reference
+20
%
Lower limit, V
FB
 < internal 500mV reference
-10
%
Start-Up Delay Time
2
ms
Fault (noise immunity) Delay Time
(2)
5
Leakage
1    礎(chǔ)
Power Good On-Resistance
10
&
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