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| 型号： | LT3710EFE#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM 16-TSSOP |
| 标准包装： | 95 |
| PWM 型： | 电流/电压模式 |
| 输出数： | 2 |
| 频率 - 最大： | 340kHz |
| 占空比： | 90% |
| 电源电压： | 8 V ~ 24 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm）裸露焊盘 |
| 包装： | 管件 |
LT3710
Secondary Side
Synchronous Post Regulator
FEATURES
DESCRIPTIO
s
s
s
s
s
s
s
s
Generates a Regulated Auxiliary Output in Isolated
DC/DC Converters
0.8V ± 1.5% Accurate Voltage Reference
Dual N-Channel MOSFET Synchronous Drivers
High Switching Frequency: Up to 500kHz
Programmable Current Limit Protection
Programmable Soft-Start
Automatic Frequency Synchronization
Small 16-Pin Thermally Enhanced TSSOP Package
The LT ? 3710 is a high efficiency step-down switching
regulator intended for auxiliary outputs in single second-
ary winding, multiple output power supplies.
The LT3710 drives dual synchronous N-channel MOSFETs
and achieves high efficiency. With leading edge modula-
tion, it operates well with either primary side peak current
or voltage mode control. It is synchronized to the falling
edge of the transformer secondary winding and can be
used in both single-ended and double-ended isolated
power converter topologies. A high speed operational
APPLICATIO S
amplifier is incorporated to achieve optimum compensa-
tion and fast transient response. A user selectable discon-
s
s
s
48V Isolated DC/DC Converters
Multiple Output Supplies
Offline Converters
tinuous conduction mode improves light load efficiency.
The LT3710 is available in a thermally enhanced TSSOP-16
exposed pad power package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
L1
V OUT1
3.3V
V IN
36V
TO 72V
V CC
BIAS
10k
AT 10A
V DD
V CC BOOST
CMDSH-3
?
?
CG
V COMP
10pF
SYNC GBIAS
LT3710
4.7 μ F
FG
V FB
C S
680pF
CSET
TG
0.1 μ F
Q1
L2
1.8 μ H
0.006 ?
V OUT2
1.8V
I SNS
SW
ILCOMP BG
Q2
B340A
4700pF
+
AT 10A
C OUT2
LTC1698
10k
180pF
0.01 μ F
SS
BGS
VA OUT
3.3k
3.01k
220 ?
TG BG
LT3781
SG
?
?
SYNC
PGND
CL –
V FB
CL +
33nF
2.32k
3710 F01
OPTODRV
V C
+
–
V REF
V FB
ISOLATION
BOUNDARY
GND
C OUT2 : POSCAP, 680 μ F/4V
L2: SUMIDA CEP125-IR8MC-H
Q1, Q2: SILICONIX Si7440DP
PLEASE REFER TO FIGURE 3
IN THE APPLICATIONS SECTION
FOR THE COMPLETE SCHEMATIC
Figure 1. Simplified Single Secondary Winding 3.3V and 1.8V Output Isolated DC/DC Converter
3710f
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT371LF | 制造商:EDSYN 功能描述: |
| LT3724 | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Voltage, Current Mode Switching Regulator Controller |
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| LT3724EFE#PBF | 功能描述:IC REG CTRLR BST INV PWM 16TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 特色产品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 标准包装:1 系列:PowerWise® PWM 型:电压模式 输出数:1 频率 - 最大:1MHz 占空比:81% 电源电压:4.5 V ~ 18 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-5°C ~ 125°C 封装/外壳:32-WFQFN 裸露焊盘 包装:Digi-Reel® 产品目录页面:1303 (CN2011-ZH PDF) 其它名称:LM3754SQDKR |
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