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參數資料
| 型號： | LTC3521IUF#PBF |
| 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： | 21/22頁 |
| 文件大小： | 1476K |
| 代理商： | LTC3521IUF#PBF |
LTC3521
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3521fa
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)
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相關代理商/技術參數 |
參數描述 |
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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 |
| LTC3522EUD | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Synchronous 400mA Buck-Boost and 200mA Buck Converters |
| LTC3522EUD#PBF | 功能描述:IC REG BUCK BOOST SYNC ADJ 16QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 產品培訓模塊:MIC23xxx HyperLight Load™ Regulators 標準包裝:5,000 系列:HyperLight Load® 類型:降壓（降壓） 輸出類型:固定 輸出數:1 輸出電壓:1.8V 輸入電壓:2.7 V ~ 5.5 V PWM 型:混合物 頻率 - 開關:4MHz 電流 - 輸出:2A 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:8-VFDFN 裸露焊盤，8-MLF? 包裝:帶卷 (TR) 供應商設備封裝:8-MLF?（2x2） 產品目錄頁面:1094 (CN2011-ZH PDF) 其它名稱:576-3303-2 |
| LTC3522EUD#TRPBF | 功能描述:IC REG BUCK BOOST SYNC ADJ 16QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 標準包裝:2,500 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數:1 輸出電壓:1.2V，1.5V，1.8V，2.5V 輸入電壓:2.7 V ~ 20 V PWM 型:- 頻率 - 開關:- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤 包裝:帶卷 (TR) 供應商設備封裝:10-MSOP 裸露焊盤 |
| LTC3523 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Synchronous 600mA Step-Up and 400mA Step-Down DC/DC Converters |
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