參數(shù)資料
型號: LTC3851EUD#TRPBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: 0.05 A SWITCHING CONTROLLER, 790 kHz SWITCHING FREQ-MAX, PQCC16
封裝: 3 X 3 MM, LEAD FREE, PLASTIC, MO-220WEED-2, QFN-16
文件頁數(shù): 21/28頁
文件大?。?/td> 325K
代理商: LTC3851EUD#TRPBF
LTC3851
28
3851fb
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 FAX: (408) 434-0507 www.linear.com
LINEAR TECHNOLOGY CORPORATION 2008
LT 0409 REV B PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATION
PART NUMBER
DESCRIPTION
COMMENTS
LTC3727A-1
Dual, 2-Phase Synchronous Controller
Very Low Dropout, VOUT ≤ 14V
LTC3728
2-Phase 550kHz, Dual Synchronous Step-Down Controller
QFN and SSOP Packages
LTC3729/
LTC3729L-6
20A to 200A PolyPhase
Synchronous Controllers
Expandable from 2-Phase to 12-Phase, Uses All Surface
Mount Components, No Heat Sink
LTC3731
3-Phase, 600kHz Synchronous Step-Down Controller
0.6V ≤ VOUT ≤ 6V, 4.5V ≤ VIN ≤ 32V, IOUT ≤ 60A, Integrated
MOSFET Drivers
LTC3810
100V Current Mode Synchronous Nonisolated Switching
Regulator Controller
6.2V ≤ VIN ≤ 100V, 0.8V ≤ VOUT ≤ 0.9VIN, No RSENSE,
Tracking and Synchronizable
LTC3811
Dual, PolyPhase Synchronous Step-Down Controller, 20A to 200A
Differential Remote Sense Amplier, RSENSE or DCR Current
Sense
LTC3826/LTC3826-1
Low IQ Dual Synchronous Step-Down Controllers
4V ≤ VIN ≤ 36V, 0.8V ≤ VOUT ≤ 10V, 30μA Quiescent Current
LTC3834/LTC3834-1
Low IQ Synchronous Step-Down Controllers
Single Channel LTC3826/LTC3826-1
LT
3845
Low IQ Synchronous Step-Down Controller
4V ≤ VIN ≤ 60V, 1.23V ≤ VOUT ≤ 36V, 120μA Quiescent Current
LTC3850/LTC3850-1/
LTC3850-2
Dual, 2-Phase Synchronous Step-Down Controller
RSENSE or DCR Current Sensing, Tracking and Synchronizable
LTC3853
Triple Output, Multiphase Synchronous Step-Down Controller
RSENSE or DCR Current Sensing, Tracking and Synchronizable
LTC3878
No RSENSE Wide Input Range Constant On-Time Synchronous
Step-Down Controller
Up to 97% Efciency, 4V ≤ VIN ≤ 38V,
0.8V ≤ VOUT ≤ (0.9)(VIN), IOUT Up to 20A
LTM4600HV
10A Complete Switch Mode Power Supply
92% Efciency, VIN: 4.5V to 28V, True Current Mode Control,
Ultrafast Transient Response
LTM4601AHV
12A Complete Switch Mode Power Supply
92% Efciency, VIN: 4.5V to 28V, True Current Mode Control,
Ultrafast Transient Response
PolyPhase is a registered trademark of Linear Technology Corporation. No RSENSE and Ultrafast are trademarks of Linear Technology Corporation.
MODE/PLLIN
FREQ/PLLFLTR
RUN
TK/SS
ITH
VFB
SENSE
SENSE+
VIN
TG
BOOST
SW
INTVCC
BG
GND
ILIM
LTC3851
CSS
0.1μF
CB
0.1μF
CC2
220pF
CC
470pF
RFREQ
160k
RC
33k
RSENSE
0.01Ω
VOUT
1.8V
5A
1000pF
4.7μF
+
COUT
150μF
6.3V
2
PANASONIC SP
CIN
22μF
25V
M1A
FDS6982S
M1B
FDS6982S
COUT: PANASONIC EEFUEOG151R
CIN: MARCON THCR70LE1H226ZT
L1: PANASONIC ETQP6F3R3HFA
RSENSE: IRC LR 2010-01-R010F
3851 F13
DB
CMDSH-3
R2
32.4k
1%
R1
25.5k
1%
VIN
4.5V TO 22V
L1
3.3μH
+
10Ω
Figure 13. 1.8V/5A Converter from Design Example with Pulse Skip Operation
相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC3851IGN#PBF 功能描述:IC REG CTRLR BUCK PWM CM 16-SSOP 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:2,000 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:1MHz 占空比:50% 電源電壓:9 V ~ 10 V 降壓:無 升壓:是 回掃:是 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 85°C 封裝/外殼:8-TSSOP(0.173",4.40mm 寬) 包裝:帶卷 (TR)
LTC3851IGN#TRPBF 功能描述:IC REG CTRLR BUCK PWM CM 16-SSOP 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:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:96% 電源電壓:4 V ~ 36 V 降壓:無 升壓:是 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤 包裝:帶卷 (TR)
LTC3851IMSE#PBF 功能描述:IC REG CTRLR BUCK PWM CM 16-MSOP 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:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:96% 電源電壓:4 V ~ 36 V 降壓:無 升壓:是 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤 包裝:帶卷 (TR)
LTC3851IMSE#TRPBF 功能描述:IC REG CTRLR BUCK PWM CM 16-MSOP 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:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:96% 電源電壓:4 V ~ 36 V 降壓:無 升壓:是 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤 包裝:帶卷 (TR)
LTC3851IMSE-1#PBF 功能描述:IC REG CTRLR BUCK PWM CM 16-MSOP 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:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:96% 電源電壓:4 V ~ 36 V 降壓:無 升壓:是 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤 包裝:帶卷 (TR)