參數(shù)資料
型號(hào): LTC3672BEDC-1#TRPBF
廠商: Linear Technology
文件頁(yè)數(shù): 10/12頁(yè)
文件大?。?/td> 172K
描述: IC REG TRPL BCK/LINEAR 8-DFN
標(biāo)準(zhǔn)包裝: 2,500
拓?fù)洌?/td> 降壓(降壓)同步(1),線性(LDO)(2)
功能: 任何功能
輸出數(shù): 3
頻率 - 開關(guān): 2.25MHz
電壓/電流 - 輸出 1: 1.8V,400mA
電壓/電流 - 輸出 2: 1.2V,150mA
電壓/電流 - 輸出 3: 2.8V,150mA
帶 LED 驅(qū)動(dòng)器:
帶監(jiān)控器:
帶序列發(fā)生器:
電源電壓: 2.9 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 8-WFDFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 8-DFN(2x2)
包裝: 帶卷 (TR)
LTC3672B-1
10
3672B1f
PRINTED CIRCUIT BOARD LAYOUT CONSIDERATIONS
When laying out the printed circuit board, the following
list should be followed to ensure proper operation of the
LTC3672B-1:
1) The Exposed Pad of the package should connect directly
to a large ground plane to minimize thermal and electrical
impedance.
2) The connections from the input supply pins (V
IN
 and V
IN1
)
to their respective decoupling capacitors should be kept as
short as possible. The GND side of these capacitors should
connect directly to the ground plane of the part. The V
IN
 
capacitor provides the AC current to the buck regulators
power MOSFETs and their drivers. It is especially important
to minimize PCB trace inductance from this capacitor to
the V
IN
 and GND pins of the LTC3672B-1.
3) The switching power trace connecting the SW pin to
the inductor should be kept as short as possible to reduce
radiated EMI and parasitic coupling.
4) The LDO output capacitors should be placed as close
to the IC as possible, and connect to the LDO outputs and
the GND pin as directly as possible.
APPLICATIONS INFORMATION
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