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參數資料
型號： SC418ULTRT
廠商： Semtech
文件頁數： 27/30頁
文件大小： 691K
描述： IC REG DL BUCK/LINEAR 20MLPQ
產品培訓模塊： Power Supplies 101
標準包裝： 1
系列： EcoSpeed®
拓撲： 降壓（降壓）（1），線性（LDO）（1）
功能： 任何功能
輸出數： 2
頻率 - 開關： 1MHz
電壓/電流 - 輸出 1： 控制器
電壓/電流 - 輸出 2： 0.75 V ~ 5.25 V，200mA
帶 LED 驅動器： 無
帶監控器： 無
帶序列發生器： 無
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： 20-MLPQ
供應商設備封裝： 20-MLPQ（3x3）
包裝： 標準包裝
其它名稱： SC418ULTRTDKR
SC418
27
Applications Information (continued)
All components connected to the FB pin must
be located near the pin. The FB traces should be
kept small and not routed near any noisy switch-
ing connections or power components.
Place the R
ILIM
 resistor near the IC. For an accu-
rate I
LIM
 current sense connection, route the R
ILIM
 
trace directly to the drain of the low-side MOSFET
(LX). Use an inner routing layer if needed.
Place the R
TON
 resistor near the TON pin. Route
R
TON
to the TON pin and to AGND using short
traces and avoid all switching signals.
For the LDO components
The FBL resistors should be placed near
the FBL pin. The area of the FBL traces
should be minimized, avoiding all switch-
ing connections.
The top FBL resistor must route directly
to the LDO output capacitor. The LDO
load current should not flow through this
trace.
Bypass Capacitors
The device requires bypass capacitors for the following
pins.
VDDA pin with respect to AGND. This 0.糉
minimum capacitor must be placed and routed
close to the IC pins, on the same layer as the IC.
VDDP with respect to PGND. This 糉 minimum
capacitor must be placed and routed close to
the IC pins and on the same layer as the IC.
BST pin with respect to LX. This 0.糉 minimum
capacitor must be placed near the IC, on either
side of the PCB. Use short traces for the routing
between the capacitor and the IC.
VLDO pin with respect to AGND.
This is the LDO output capacitor.
The placement of this capacitor is not
critical, however for routing it is important
that the top FBL resistor connects directly
to this capacitor, and that the LDO load
current does not flow through this trace.
If VLDO is not used to power the device
then a minimum 糉 capacitor referenced
to AGND is required.
If VLDO is used to power the device then
"
"
"
"
?/DIV>
?/DIV>
"
"
"
"
?/DIV>
?/DIV>
?/DIV>
?/DIV>
the VDDA and VDDP capacitors also
function as the LDO output capacitor.
For VDDA, a minimum 0.糉 capacitor ref-
erenced to AGND is required. For VDDP,
a minimum 糉 capacitor referenced to
PGND is required.
VIN pin with respect to AGND. This 0.糉
minimum capacitor must be placed and routed
close to the IC pins. This capacitor provides
noise filtering for the input to the internal LDO.
"
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相關代理商/技術參數
參數描述
SC419 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:EcoSpeedTM DC-DC Converter with Integrated Boost Diode
SC419970CGCR2 制造商:Motorola Inc 功能描述:
SC419EVB 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:EcoSpeedTM DC-DC Converter with Integrated Boost Diode
SC419ULTRT 功能描述:IC REG CTRLR BUCK PWM 20-MLPQ RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 切換控制器 系列:EcoSpeed®, SmartDrive™ 特色產品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 標準包裝:1 系列:PowerWise® PWM 型:電壓模式 輸出數:1 頻率 - 最大:1MHz 占空比:81% 電源電壓:4.5 V ~ 18 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-5°C ~ 125°C 封裝/外殼:32-WFQFN 裸露焊盤 包裝:Digi-Reel® 產品目錄頁面:1303 (CN2011-ZH PDF) 其它名稱:LM3754SQDKR
SC41E6 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:SIEMENS ANNOUNCES A SUB-MICTON GENERATION OF CHANNELLESS GATE-ARRAYS BASED ON THE PROVEN MEGALOGIC PROCESS
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