TPS61045 28-V, 85% Efficient Boost Converter in QFN-8, Digitally Adjustable | TI.com

TPS61045 (ACTIVE) 28-V, 85% Efficient Boost Converter in QFN-8, Digitally Adjustable

 

Recommended alternative parts

  • TPS61046  -  For applications requiring smaller package or True Disconnection

Description

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.

Features

  • 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

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WEBENCH® Designer TPS61045

  Min   Max Range
Vin  V 1.8 to 6.0V
Vout  V 1.8 to 28V
Iout  A ≤ 0.6A
Ambient Temp  °C -40 to 85°C

Parametrics

Compare all products in Boost converters (integrated switch) Email Download to Excel
Part number Order 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) Features Duty cycle (Max) (%) Operating temperature range (C) Type Rating Package Group
TPS61045 Order now 1.8     6     1.8     28     0.3     1     50     1000     0.04     Enable
Load Disconnect    
88     -40 to 85     Converter     Catalog     SON | 8    
TPS61040 Order now 1.8     6     1.8     28     0.4     1     50     1000     0.028     Enable     88     -40 to 85     Converter     Catalog     SOT-23-THIN | 5
SOT-23 | 5
WSON | 6    
TPS61041 Order now 1.8     6     1.8     28     0.25     1     50     1000     0.028     Enable     88     -40 to 85     Converter     Catalog     SOT-23 | 5
WSON | 6    
TPS61046 Order now 1.8     5.5     4.5     28     0.9     1     850     1250     0.11     Enable
Light Load Efficiency
Load Disconnect    
90     -40 to 85     Converter     Catalog     DSBGA | 6    
TPS61096A Order now 1.8     5.5     4.5     28     0.5     1     200     3000     0.001     Adjustable Current Limit
Enable
Light Load Efficiency    
90     -40 to 85     Converter     Catalog     WSON | 12