参数资料
型号: LT3573IMSE#PBF
厂商: Linear Technology
文件页数: 1/26页
文件大小: 0K
描述: IC REG FLYBACK ISO ADJ 16MSOP
产品培训模块: LT3573 Flyback Voltage Converter
标准包装: 37
类型: 回扫,隔离
输出类型: 可调式
输出数: 1
输出电压: 可调至 60V
输入电压: 3 V ~ 40 V
PWM 型: 电流模式,混合
频率 - 开关: 40kHz ~ 1MHz
电流 - 输出: 1.25A
同步整流器:
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 16-TFSOP(0.118",3.00mm 宽)裸露焊盘
包装: 管件
供应商设备封装: 16-MSOP,裸露焊盘
产品目录页面: 1332 (CN2011-ZH PDF)
配用: 732-3307-ND - BOARD EVAL FOR LT3573
相关产品: 732-2669-2-ND - TRANS FLYBACK LT3748 20UH SMD
732-2669-6-ND - TRANS FLYBACK LT3748 20UH SMD
732-2668-6-ND - TRANS FLYBACK LT3748 14UH SMD
732-2667-6-ND - TRANS FLYBACK LT3748 500UH SMD
732-2666-6-ND - TRANS FLYBACK LT3748 12UH SMD
732-2665-6-ND - TRANS FLYBACK LT3748 12UH SMD
732-2664-6-ND - TRANS FLYBACK LT3748 15UH SMD
732-2663-6-ND - TRANS FLYBACK LT3748 15UH SMD
732-2662-6-ND - TRANS FLYBACK LT3748 8UH SMD
732-2661-6-ND - TRANS FLYBACK LT3748 8UH SMD
更多...
LT3573
Isolated Flyback Converter
without an Opto-Coupler
3V to 40V Input Voltage Range
1.25A, 60V Integrated NPN Power Switch
Boundary Mode Operation
No Transformer Third Winding or
Improved Primary-Side Winding Feedback
V OUT Set with Two External Resistors
BIAS Pin for Internal Bias Supply and Power
Programmable Soft-Start
Programmable Power Switch Current Limit
Thermally Enhanced 16-Lead MSOP
FEATURES
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Opto-Isolator Required for Regulation
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Load Regulation
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NPN Driver
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APPLICATIONS
DESCRIPTION
The LT ? 3573 is a monolithic switching regulator specifi-
cally designed for the isolated flyback topology. No third
winding or opto-isolator is required for regulation. The
part senses the isolated output voltage directly from the
primary-side flyback waveform. A 1.25A, 60V NPN power
switch is integrated along with all control logic into a
16-lead MSOP package.
The LT3573 operates with input supply voltages from
3V to 40V, and can deliver output power up to 7W with
no external power devices.The LT3573 utilizes boundary
mode operation to provide a small magnetic solution with
improved load regulation.
L , LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks
and No R SENSE and ThinSOT are trademarks of Linear Technology Corporation. All other
trademarks are the property of their respective owners. Protected by U.S. Patents, including
5438499 and 7471522.
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Industrial, Automotive and Medical Isolated
Power Supplies
TYPICAL APPLICATION
5V Isolated Flyback Converter
V IN
12V TO 24V
10 μ F
357k
SHDN /UVLO
V IN
0.22 μ F
2k
24 μ H
3:1
B340A
2.6 μ H
V OUT+
5V, 0.7A
47 μ F
3
2
Load Regulation
51.1k
TC
LT3573
R FB
R REF
PMEG6010
80.6k
6.04k
V OUT–
1
0
–1
V IN = 12V
V IN = 24V
R ILIM
SS
SW
–2
VC
GND
TEST BIAS
28.7k
10k
20k
–3
0
200
400
600
800 1000 1200 1400
10nF
1nF
4.7 μ F
I OUT (mA)
3573 TA01b
3573 TA01
3573fd
For more information www.linear.com/LT3573
1
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LT3574EMS#PBF 功能描述:IC REG FLYBK ISO ADJ .65A 16MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:250 系列:- 类型:降压(降压) 输出类型:固定 输出数:1 输出电压:1.2V 输入电压:2.05 V ~ 6 V PWM 型:电压模式 频率 - 开关:2MHz 电流 - 输出:500mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:6-UFDFN 包装:带卷 (TR) 供应商设备封装:6-SON(1.45x1) 产品目录页面:1032 (CN2011-ZH PDF) 其它名称:296-25628-2