：凌力尔特公司不断发展的主端和副端控制器产品库为背板电源转换中所使用的 DC/DC 砖提供了一种简单且具成本效益的替代方案。主端控制器可被配置为反激式、单或双晶体管正激式、推挽式或高达 1.5kW 的全桥式转换器。同样，副端控制器可提供同步整流、驱动或后置稳压。(40)
| 型号 |
Vin Min |
Vin Max |
Topology |
Primary Side |
Secondary Side |
Synchronous |
Comments |
Packages |
数据手册DataSheet下载 |
| LT1425 |
2.8 |
20 |
Flyback |
Flyback Controller |
|
no |
Isolated flyback, 5% accurate Vout |
SO-16 |
LT1425 |
| LT1681 |
9 |
72 |
Forward |
Dual Transistor Forward Controller |
|
yes |
Dual transistor synchronous forward controller |
SO-20 |
LT1681 |
| LT1725 |
|
|
Flyback |
Flyback Controller |
|
no |
General Purpose Isolated Flyback Controller |
SO-16, SSOP-16 |
LT1725 |
| LT1737 |
5 |
22 |
Flyback |
Flyback Controller |
|
no |
High Power Isolated Flyback Controller |
GN-16, SO-16 |
LT1737 |
| LT1950 |
3 |
25 |
Flyback, Forward |
Flyback Controller, Single Transistor Forward Controller |
|
no |
Boost, flyback and forward controller. transformer and MOSFET protection |
SSOP-16 |
LT1950 |
| LT1952 |
14.25 |
25 |
Forward, Flyback |
Single Transistor Synchronous Forward Controller |
|
yes |
Single Switch Synchronous Forward Controller |
SSOP-16 |
LT1952 |
| LT1952-1 |
7.75 |
25 |
Forward, Flyback |
Single Transistor Synchronous Forward Controller |
|
yes |
Starts up with low input voltages |
SSOP-16 |
LT1952-1 |
| LT3573 |
3 |
40 |
Flyback |
Flyback |
|
no |
Isolated Flyback Converter Without an Opto-Coupler |
MS-16 |
LT3573 |
| LT3710 |
8 |
24 |
Secondary Side Controller |
|
Synchronous Post Regulator |
yes |
Secondary side synchronous post regulator. auxiliary output in isolated power supplies. use with the LT3781, LTC1698 |
TSSOP-16 |
LT3710 |
| LT3750 |
3 |
24 |
Flyback |
Flyback |
|
no |
Capacitor Charger Controller |
MS-10 |
LT3750 |
| LT3751 |
5 |
24 |
Flyback |
Flyback |
|
no |
Capacitor Charger Controller with Regulation |
QFN-20 |
LT3751 |
| LT3781 |
8 |
72 |
Forward |
Dual Transistor Forward Controller |
|
yes |
Bootstrap start dual transistor synchronous forward controller |
SSOP-20 |
LT3781 |
| LT3804 |
8 |
25 |
Secondary Side Controller |
|
Synchronous Rectifier |
no |
Includes opto-driver; regulates two secondary output voltages |
TSSOP-28 |
LT3804 |
| LT3825 |
10 |
|
Flyback |
Flyback Controller |
|
yes |
Isolated No-Opto Synchronous Flyback Controller with Wide Input Supply Range |
TSSOP-16 |
LT3825 |
| LT3837 |
4.5 |
20 |
Flyback |
Flyback Controller |
|
yes |
Isolated No-Opto Synchronous Flyback Controller |
TSSOP-16 |
LT3837 |
| LT4430 |
3 |
20 |
Optocoupler Driver |
|
Secondary-Side Optocoupler Driver |
no |
Secondary-Side Optocoupler Driver |
ThinSOT |
LT4430 |
| LTC1698 |
6 |
12.6 |
Secondary Side Controller |
|
Synchronous Rectifier |
yes |
Secondary Synchronous rectifier controller (use LT3781 for primary side) |
SO-16, SSOP-16 |
LTC1698 |
| LTC1871 |
2.5 |
36 |
Boost, Sepic, Inverting, Flyback |
Flyback Controller |
|
no |
Wide Input Range, No RSENSE Current Mode Boost, Flyback and SEPIC Controller |
MS-10 |
LTC1871 |
| LTC1871-1 |
2.5 |
36 |
Boost, Sepic, Flyback |
Flyback Controller |
|
no |
Wide Input Range, No RSENSE Current Mode Boost, Flyback and SEPIC Controller, Lower Pulse Skip Threshold |
MS-10 |
LTC1871-1 |
| LTC1871-7 |
2.5 |
36 |
Boost, Flyback, Sepic |
Flyback Controller |
|
no |
Drives 6V-gate N-Channel MOSFETs for high voltage telecom & automotive apps.. Frequency set with resistor |
MS-10 |
LTC1871-7 |
| LTC1922-1 |
3.8 |
10.3 |
Full Bridge |
Full-Bridge Controller |
|
yes |
Synchronous phase modulated full-bridge controller. adaptive DirectSense zero voltage switching |
SSOP-20, N-20 |
LTC1922-1 |
| LTC3705 |
18 |
80 |
Forward |
2-Switch Forward Controller |
|
yes |
2-Switch Forward Controller and Gate Driver |
SSOP-16 |
LTC3705 |
| LTC3706 |
5 |
30 |
Secondary Side Controller |
|
Synchronous Forward Controller |
yes |
Secondary-Side Synchronous Forward Controller with Polyphase Capability |
SSOP-24 |
LTC3706 |
| LTC3721-1 |
|
|
Push-Pull |
Push Pull Controller |
|
no |
Push-Pull PWM Controller |
SSOP-16, QFN-16 |
LTC3721-1 |
| LTC3722-1 |
3.8 |
10.3 |
Full Bridge |
Full-Bridge Controller |
|
yes |
Current mode |
SSOP-24 |
LTC3722-1 |
| LTC3722-2 |
3.8 |
10.3 |
Full Bridge |
Full-Bridge Controller |
|
yes |
Voltage mode |
SSOP-24 |
LTC3722-2 |
| LTC3723-1 |
|
|
Push-Pull |
Push-Pull Controller |
|
yes |
1.5A sink, 1A source drivers; synchronous; adjustable dead time |
SSOP-16 |
LTC3723-1 |
| LTC3723-2 |
|
|
Push-Pull |
Push-Pull Controller |
|
yes |
1.5A sink, 1A source drivers; synchronous; adjustable dead time |
SSOP-16 |
LTC3723-2 |
| LTC3725 |
9 |
|
Forward |
Single Transistor Forward Controller |
|
yes |
Single-Switch Forward Controller and Gate Driver |
MS-10 |
LTC3725 |
| LTC3726 |
|
|
Secondary Side Controller |
|
Synchronous Forward Controller |
yes |
Secondary-Side Synchronous Forward Controller |
SSOP-16 |
LTC3726 |
| LTC3803 |
|
|
Flyback |
|
|
no |
Constant Frequency Current Mode Flyback DC/DC Controller in ThinSOT |
ThinSOT |
LTC3803 |
| LTC3803-3 |
|
|
Flyback |
|
|
no |
Constant Frequency Current Mode Flyback DC/DC Controller in ThinSOT |
ThinSOT |
LTC3803-3 |
| LTC3803-5 |
|
|
Flyback |
|
|
no |
Constant Frequency Current Mode Flyback DC/DC Controller in ThinSOT |
ThinSOT |
LTC3803-5 |
| LTC3805 |
8.8 |
75 |
Flyback, Boost |
Flyback Controller |
|
no |
Adjustable Frequency Current Mode Flyback DC/DC Controller |
DFN-10, MS-8E |
LTC3805 |
| LTC3805-5 |
4.5 |
75 |
Flyback, Boost |
Flyback |
|
no |
Adjustable Frequency Current Mode Flyback/Boost/SEPIC DC/DC Controller |
MS-10, DFN-10 |
LTC3805-5 |
| LTC3806 |
|
|
Flyback |
|
|
yes |
Synchronous Flyback DC/DC Controller |
DFN-12 |
LTC3806 |
| LTC3873 |
8.8 |
75 |
Boost, Flyback, Sepic |
Flyback Controller |
|
no |
No RSENSE Constant Frequency Current Mode Boost/Flyback/SEPIC DC/DC Controller |
SOT-23, DFN-8 |
LTC3873 |
| LTC3873-5 |
4 |
75 |
Boost, Flyback, Sepic |
Flyback Controller |
|
no |
No RSENSE Constant Frequency Current Mode Boost/Flyback/SEPIC DC/DC Controller |
SOT-23, DFN-8 |
LTC3873-5 |
| LTC3900 |
4.5 |
11 |
Secondary Side Controller |
|
Synchronous Drivers |
no |
For forward converters; programmable timeout, reverse inductor current sense |
SO-8 |
LTC3900 |
| LTC3901 |
4.5 |
11 |
Secondary Side Controller |
|
Synchronous Drivers |
no |
For push-pull and full-bridge converters; programmable timeout, reverse inductor current sense |
SSOP-16 |
LTC3901 |