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): 15/22頁
文件大?。?/td> 1476K
代理商: LTC3521EUF#TRPBF
LTC3521
22
3521fa
LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 FAX: (408) 434-0507 www.linear.com
LINEAR TECHNOLOGY CORPORATION 2010
LT 1110 REV A PRINTED IN USA
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
LTC3100
700mA ISW, 1.5MHz, Synchronous Step-Up, 250mA
Synchronous Step-Down DC/DC Converter and 100mA LDO
94% Efficiency, VIN: 0.7V to 5V, VOUT(MAX) = 5.25V, IQ = 15A,
ISD < 1A, 3mm × 3mm QFN-16 Package
LTC3101
Wide VIN, Multioutput DC/DC Converter and PowerPath
Controller, 800mA Buck-Boost, Dual 350mA Buck
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4mm × 4mm QFN-24 Package
LTC3409
600mA IOUT, 1.7MHz/2.6MHz, Synchronous Step-Down
DC/DC Converter
96% Efficiency, VIN: 1.6V to 5.5V, VOUT(MIN) = 0.6V, IQ = 65A,
ISD < 1A, DFN Package
LTC3441/LTC3442/
LTC3443
1.2A IOUT, 2MHz, Synchronous Buck-Boost DC/DC
Converter
95% Efficiency, VIN: 2.4V to 5.5V, VOUT(MIN): 2.4V to 5.25V,
IQ = 50A, ISD < 1A, DFN Package
LTC3520
1A 2MHz, Synchronous Buck-Boost and 600mA Buck
Converter
95% Efficiency, VIN: 2.2V to 5.5V, VOUT(MAX) = 5.25V, IQ = 55A,
ISD < 1A, 4mm × 4mm QFN-24 Package
LTC3522
400mA 2MHz, Synchronous Buck-Boost and 200mA Buck
Converter
95% Efficiency, VIN: 2.4V to 5.5V, VOUT(MAX) = 5.25V, IQ = 25A,
ISD < 1A, 3mm × 3mm QFN-16 Package
LTC3531/LTC3531-3/
LTC3531-3.3
200mA IOUT, 1.5MHz, Synchronous Buck-Boost DC/DC
Converter
95% Efficiency, VIN: 1.8V to 5.5V, VOUT(MIN): 2V to 5V, IQ = 16A,
ISD < 1A, ThinSOT and DFN Packages
LTC3532
500mA IOUT, 2MHz, Synchronous Buck-Boost DC/DC
Converter
95% Efficiency, VIN: 2.4V to 5.5V, VOUT(MIN): 2.4V to 5.25V,
IQ = 35A, ISD < 1A, MS10 and DFN Packages
LTC3547
Dual 300mA IOUT, 2.25MHz, Synchronous Step-Down
DC/DC Converter
95% Efficiency, VIN: 2.5V to 5.5V, VOUT(MIN) = 0.6V, IQ = 40A,
ISD < 1A, DFN-8 Package
TYPICAL APPLICATION
Li-Ion to 3.3V at 800mA, 1.8V at 600mA and 1.2V at
600mA with Sequenced Start-Up
Sequenced Start-Up Waveforms
PVIN1
PVIN2
SW2
VOUT1
FB2
FB1
SW3
LTC3521
SHDN1
R5
100k
R3
137k
R4
68.1k
C3
10F
C2
10F
4.7F
Li-Ion
L1
4.7H
L3
4.7H
L2
4.7H
VOUT2
1.8V
600mA
R1
1.0M
R2
221k
C1
22F
VOUT1
3.3V
800mA
(1A, VIN > 3.0V)
VIN
2.4V TO
4.2V
R6
100k
499k
R5
499k
3521 TA03a
PGOOD1
PGOOD3
PWM
SW1A
SW1B
FB3
PGOOD2
SHDN2
SHDN3
PGOOD1
PGND2
GND
PWM
BURST
ON
OFF
VOUT3
1.2V
600mA
+
PGND1A
PGND1B
VIN
500s/DIV
VOUT2
2V/DIV
VOUT3
2V/DIV
VOUT1
2V/DIV
SHDN2, 5V/DIV
PGOOD2, 5V/DIV
PGOOD3, 5V/DIV
3521 TA03b
相關(guān)PDF資料
PDF描述
LTC3521IFE#PBF SWITCHING REGULATOR, 1350 kHz SWITCHING FREQ-MAX, PDSO20
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LTC3521IUF#PBF SWITCHING REGULATOR, 1350 kHz SWITCHING FREQ-MAX, PQCC24
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC3521IFE#PBF 功能描述:IC REG BUCK BST SYNC ADJ 20TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 產(chǎn)品培訓(xùn)模塊:MIC23xxx HyperLight Load™ Regulators 標(biāo)準(zhǔn)包裝:5,000 系列:HyperLight Load® 類型:降壓(降壓) 輸出類型:固定 輸出數(shù):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(guān):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(yīng)商設(shè)備封裝:8-MLF?(2x2) 產(chǎn)品目錄頁面:1094 (CN2011-ZH PDF) 其它名稱:576-3303-2
LTC3521IFE#TRPBF 功能描述:IC REG BUCK BST SYNC ADJ 20TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 設(shè)計資源:Design Support Tool 標(biāo)準(zhǔn)包裝:1 系列:- 類型:升壓(升壓) 輸出類型:固定 輸出數(shù):1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:100mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-5 細(xì)型,TSOT-23-5 包裝:剪切帶 (CT) 供應(yīng)商設(shè)備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT
LTC3521IUF#PBF 功能描述:IC REG BUCK BOOST SYNC ADJ 24QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 設(shè)計資源:Design Support Tool 標(biāo)準(zhǔn)包裝:1 系列:- 類型:升壓(升壓) 輸出類型:固定 輸出數(shù):1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:100mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-5 細(xì)型,TSOT-23-5 包裝:剪切帶 (CT) 供應(yīng)商設(shè)備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT
LTC3521IUF#TRPBF 功能描述:IC REG BUCK BOOST SYNC ADJ 24QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 設(shè)計資源:Design Support Tool 標(biāo)準(zhǔn)包裝:1 系列:- 類型:升壓(升壓) 輸出類型:固定 輸出數(shù):1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:100mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-5 細(xì)型,TSOT-23-5 包裝:剪切帶 (CT) 供應(yīng)商設(shè)備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT
LTC3522 制造商:LINER 制造商全稱:Linear Technology 功能描述:Synchronous 400mA Buck-Boost and 200mA Buck Converters