參數(shù)資料
型號(hào)： LT3837IFE#PBF
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： SWITCHING CONTROLLER, 110 kHz SWITCHING FREQ-MAX, PDSO16
封裝： 4.40 MM, LEAD FREE, PLASTIC, TSSOP-16
文件頁(yè)數(shù)： 1/28頁(yè)
文件大?。?/td> 247K
代理商： LT3837IFE#PBF
LT3837
1
3837fc
47pF
2.2nF
10Ω
22μF
3k
22.1k
100k
BAS16
150k
12k
330Ω
15Ω
10Ω
100nH
8mΩ
Si7852DP
Si7336ADP
B0540W
1.37k
3.3nF
20k
1nF
1μF
0.1μF
2.2nF
BAT54
OSC
VC
FB
UVLO
PG
SENSE+
SENSE–
SG
SFST
tON
ENDLY
PGDLY
RCMP
CCMP
GND
VCC
LT3837
86.6k
10μF
VIN
15k
10k
3837 TA01a
47μF
3
220μF
OUTPUT 3.3V/10A
2N3906
FMMT718
FMMT618
FEATURES
APPLICATIONS
DESCRIPTION
Isolated No-Opto
Synchronous Flyback Controller
The LT3837 is an isolated switching regulator controller
designed for medium power yback topologies. A typical
application is 10W to 60W with the part powered from a
DC supply.
The LT3837 is a current mode controller that regulates an
output voltage based on sensing the secondary voltage
via a transformer winding during yback. This allows for
tight output regulation without the use of an optoisolator,
improving dynamic response and reliability. Synchronous
rectication increases converter efciency and improves
output cross regulation in multiple output converters.
The LT3837 operates in forced continuous conduction
mode which improves cross regulation in multiple winding
applications. Switching frequency is user programmable
and can be externally synchronized. The part also has load
compensation, undervoltage lockout and soft-start circuitry.
The LT3837 is available in a thermally enhanced 16-pin
TSSOP package.
9V –18V to 3.3V at 10A Isolated Converter
n Senses Output Voltage Directly from Primary Side
Winding—No Optoisolator Required
n Synchronous Driver for High Efciency
n Supply Voltage Range 4.5V to 20V
n Accurate Regulation Without User Trims
n Programmable Switching Frequency from
50kHz to 250kHz
n Synchronizable
n Load Compensation
n Undervoltage Lockout
n Available in a Thermally Enhanced 16-Lead
TSSOP Package
n Isolated Medium Power (10W to 60W) Supplies
n Instrumentation Power Supplies
n Isolated Medical Supplies
LOAD CURRENT (A)
2
78
76
EFFICIENCY
(%)
80
84
86
88
3
7
9
3837 TA01b
82
90
6
4
5
810
9VIN
18VIN
LOAD CURRENT (A)
3.00
OUTPUT
(V)
3.10
3.30
3.40
3.50
3.60
3837 TA01c
3.20
2
3
7
9
6
4
5
810
9VIN
18VIN
Efciency vs Load Current
Regulation vs Load Current
TYPICAL APPLICATION
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
Protected by U.S. Patents including 6498466, 5841643.
相關(guān)PDF資料
PDF描述
LT3837IFE#TRPBF SWITCHING CONTROLLER, 110 kHz SWITCHING FREQ-MAX, PDSO16
LT3845AMPFE#TRPBF SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
LT3845AIFE#TRPBF SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
LT3845AMPFE#PBF SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
LT3845EFE#TR SWITCHING CONTROLLER, 600 kHz SWITCHING FREQ-MAX, PDSO16
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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LT3844EFE#PBF 功能描述:IC REG CTRLR BST INV PWM 16TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 特色產(chǎn)品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 標(biāo)準(zhǔn)包裝:1 系列:PowerWise® PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1MHz 占空比:81% 電源電壓:4.5 V ~ 18 V 降壓:是 升壓:無(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-5°C ~ 125°C 封裝/外殼:32-WFQFN 裸露焊盤(pán) 包裝:Digi-Reel® 產(chǎn)品目錄頁(yè)面:1303 (CN2011-ZH PDF) 其它名稱:LM3754SQDKR
LT3844EFE#TRPBF 功能描述:IC REG CTRLR BST INV PWM 16TSSOP 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(wú) 升壓:是 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤(pán) 包裝:帶卷 (TR)
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