TPS61045 采用 QFN-8 封装的 28V 85% 效率的升压转换器,用于 LCD 应用领域 | 德州仪器

TPS61045 (正在供货)

采用 QFN-8 封装的 28V 85% 效率的升压转换器,用于 LCD 应用领域

采用 QFN-8 封装的 28V 85% 效率的升压转换器,用于 LCD 应用领域 - TPS61045


  • TPS61046  -  For applications requiring smaller package or True Disconnection


The TPS61045 device is a high-frequency boost converter with digitally-programmable output voltage and true shutdown. During shutdown, the output is disconnected from the input by opening the internal input switch. This allows a controlled power-up and power-down sequencing of the display. The output voltage can be increased or decreased in digital steps by applying a logic signal to the CTRL pin. The output voltage range, as well as the output voltage step size, can be programmed with the feedback divider network. With a high switching frequency of up to 1 MHz, the TPS61045 device allows the use of small external components, and together, with the small 8-pin VSON package, a minimum system solution size is achieved.


  • Input Voltage Range from 1.8 to 6 V
  • Output Voltage of up to 28 V Possible
  • Up to 85% Efficiency
  • Digitally Adjustable Output Voltage Control
  • Disconnects Output From Input During Shutdown
  • Switching Frequency up to 1 MHz
  • No Load Quiescent Current 40 µA Typical
  • Thermal Shutdown Mode
  • Shutdown Current 0.1 µA Typical
  • Available in Small 3-mm × 3-mm VSON Package


参数 与其它产品相比 升压转换器 (集成开关)

Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Switch Current Limit (Typ) (A)
Regulated Outputs (#)
Switching Frequency (Min) (kHz)
Switching Frequency (Max) (kHz)
Iq (Typ) (mA)
Duty Cycle (Max) (%)
Operating Temperature Range (C)
Package Group
TPS61045 TPS61040 TPS61041 TPS61046 TPS61096A
1.8     1.8     1.8     1.8     1.8    
6     6     6     5.5     5.5    
1.8     1.8     1.8     4.5     4.5    
28     28     28     28     28    
  0.4     0.25     0.9     0.5    
      1     1    
1000     1000     1000     1250      
0.04     0.028     0.028     0.11     0.001    
Load Disconnect    
Enable     Enable     Enable
Light Load Efficiency
Load Disconnect    
Adjustable Current Limit
Light Load Efficiency    
88     88     88     90     90    
-40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85    
Catalog     Catalog     Catalog     Catalog     Catalog    
SON     SOT-23
DSBGA     WSON    


WEBENCH® Power Designer is now even easier to use. Try it now.

WEBENCH® Designer TPS61045

  最小   最大 范围
输入电压  V 1.8 to 6.0V
输出电压  V 1.8 to 28V
输出电流  A ≤ 0.6A
环境温度  °C -40 to 85°C

覆盖面积 BOM成本 效率

Preview design