參數(shù)資料
型號(hào)： SC411EVB
廠商： Semtech Corporation
英文描述： Synchronous Buck Pseudo-Fixed Frequency Power Supply Controller
中文描述： 同步降壓偽固定頻率電源控制器
文件頁(yè)數(shù)： 18/27頁(yè)
文件大?。?/td> 488K
代理商： SC411EVB
18
2007 Semtech Corp.
www.semtech.com
SC411
POWER MANAGEMENT
The layout can be considered in two parts, the control section referenced to VSSA and the power section. Looking at
the control section
fi
rst, locate all components referenced to VSSA on the schematic and place these components at
the chip. Drop vias to the ground plane as needed.
Figure 5: Components Connected to VSSA
Figure 6: Control Section Example
In Figure 6 above, all components referenced to VSSA have been placed and connected to the ground plane with
vias.
Decoupling
capacitors C9 and C10 are as close as possible to their pins and connected to the ground plane
with vias. Note how the VSSA and PGND pins are connected directly to the thermal pad, which has 4 vias to the
ground plane (not shown).
VOUT
VBAT
C8
1nF
0402
R1
1M
0402
C10
1uF
0603
5VSUS
R2
10R
0402
5VSUS
VOUT
1
VCCA
2
FB
3
PGD
4
N
5
V
6
P
7
D
8
VDDP
9
ILIM
10
LX
11
DH
12
B
1
N
1
E
1
T
1
T
U1
SC411
C5
56p
0402
0402
0402
0603
C9
1uF
R3
20k0
R5
14k3
相關(guān)PDF資料
PDF描述
SC411MLTRT Synchronous Buck Pseudo-Fixed Frequency Power Supply Controller
SC412A Synchronous Buck Controller
SC412AEVB Synchronous Buck Controller
SC412AMLTRT Synchronous Buck Controller
SC4150 Negative Voltage Hot Swap Controller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SC411MLTRT 制造商:Semtech Corporation 功能描述:Synchronous Buck Pseudo-Fixed Frequency Power Supply Controller
SC412A 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Synchronous Buck Controller
SC412A_1 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Synchronous Buck Controller
SC412AEVB 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Synchronous Buck Controller
SC412AMLTRT 功能描述:IC REG CTRLR BUCK PWM 16-MLP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,000 系列:- PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 V 降壓:是 升壓:無(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR)
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