參數(shù)資料
型號: LTC3521EUF#TRPBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: SWITCHING REGULATOR, 1350 kHz SWITCHING FREQ-MAX, PQCC24
封裝: 4 X 4 MM, LEAD FREE, PLASTIC, MO-220WGGD, QFN-24
文件頁數(shù): 21/22頁
文件大?。?/td> 1476K
代理商: LTC3521EUF#TRPBF
LTC3521
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PVIN1(Pin13/Pin11):Highcurrentpowersupplyconnec-
tion used to supply switch A of the buck-boost converter.
This pin should be bypassed by a 4.7F, or larger, ceramic
cap. The bypass capacitor should be placed as close to
the pin as possible and should have a short return path
to ground. Pins VIN, PVIN1, and PVIN2 must be connected
together in the application circuit.
NC (Pin 13, UF Package Only): No Internal Connection.
SW1B (Pin 14/Pin 14): Buck-Boost Switch Node. This pin
must be connected to one side of the buck-boost inductor.
SW1A (Pin 15/Pin 15): Buck-Boost Switch Node. This pin
must be connected to one side of the buck-boost inductor.
VOUT1 (Pin 16/Pin 16): Buck-Boost Output Voltage Node.
This pin should be connected to a low ESR ceramic capaci-
tor. The capacitor should be placed as close to the IC as
possible and should have a short return to ground.
SW3 (Pin 17/Pin 17): Buck converter Switch Node. This
pin must be connected to the opposite side of the inductor
connected to VOUT3.
PGND2 (Pin 18/Pin 18): High Current Ground Connec-
tion for Both Buck Converters. The PCB trace connecting
this pin to ground should be made as short and wide as
possible.
SW2 (Pin 19/Pin 20): Buck Converter Switch Node. This
pin must be connected to the opposite side of the inductor
connected to VOUT2.
NC (Pin 19, UF Package Only): No Internal Connection.
PVIN2(Pin20/Pin22):HighCurrentPowerSupplyConnec-
tion Used to Supply the Buck Converter Power Switches.
This pin should be bypassed by a 10F or larger ceramic
cap. The bypass capacitor should be placed as close to
the pin as possible and should have a short return path
to ground. Pins VIN, PVIN1, and PVIN2 must be connected
together in the application circuit.
PGND1A (Exposed Pad Pin 21/Pin 21, Exposed Pad
Pin 25): High Current Ground Connection for the Buck-
Boost Switch B. The PCB trace connecting this pin to
ground should be made as short and wide as possible.
PGND1B(Pin12,UFPackageOnly):HighCurrentGround
Connection for the Buck-Boost Switch C. The PCB trace
connecting this pin to ground should be made as short
and wide as possible.
PIN FUNCTIONS (FE/UF Packages)
相關(guān)PDF資料
PDF描述
LTC3521IFE#PBF SWITCHING REGULATOR, 1350 kHz SWITCHING FREQ-MAX, PDSO20
LTC3521EFE#PBF SWITCHING REGULATOR, 1350 kHz SWITCHING FREQ-MAX, PDSO20
LTC3521IUF#PBF SWITCHING REGULATOR, 1350 kHz SWITCHING FREQ-MAX, PQCC24
LTC3525DESC6-3.3#PBF 0.45 A SWITCHING REGULATOR, PDSO6
LTC3525LESC6-3TRM 0.45 A SWITCHING REGULATOR, PDSO6
相關(guān)代理商/技術(shù)參數(shù)
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LTC3522 制造商:LINER 制造商全稱:Linear Technology 功能描述:Synchronous 400mA Buck-Boost and 200mA Buck Converters