TPS61045

現行

採用 QFN-8 封裝的 28-V,85% 效率升壓轉換器,數位可調整

產品詳細資料

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Boost Type Converter Vin (min) (V) 1.8 Vin (max) (V) 6 Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 1000 Features Enable, Load Disconnect, Nonsynchronous Vout (min) (V) 1.8 Vout (max) (V) 28 Iq (typ) (A) 0.00004
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Boost Type Converter Vin (min) (V) 1.8 Vin (max) (V) 6 Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 1000 Features Enable, Load Disconnect, Nonsynchronous Vout (min) (V) 1.8 Vout (max) (V) 28 Iq (typ) (A) 0.00004
VSON (DRB) 8 9 mm² 3 x 3
  • 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
  • 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

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.

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.

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類型 標題 日期
* Data sheet TPS61045 Digitally Adjustable Boost Converter datasheet (Rev. C) PDF | HTML 2014年 12月 5日
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 2023年 12月 6日
Application note Using External Bias to Broaden Input Voltage Range of Boost Converters PDF | HTML 2021年 11月 8日
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 2018年 12月 11日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
Application note Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) 2017年 11月 29日
Application note Extending the Soft Start Time Without a Soft Start Pin (Rev. B) 2017年 6月 15日
Application note Feedforward Capacitor Makes Boost Converter Fast and Stable 2016年 11月 2日
Analog Design Journal Design considerations for a resistive feedback divider in a DC/DC converter 2012年 4月 26日
Analog Design Journal IQ: What it is, what it isn’t, and how to use it 2011年 6月 17日
Application note Minimizing Ringing at the Switch Node of a Boost Converter 2006年 9月 15日
EVM User's guide TPS61045EVM-231: Adjustable LCD Boost Converter EVM 2003年 1月 22日
Application note High Voltage Power Supply Using the TPS61040 2002年 7月 9日

設計與開發

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開發板

TPS61045EVM-231 — TPS61045 評估模組

The TPS61045EVM-231 is an evaluation tool for the TPS61045 inductive boost converter in 3x3mm2 QFN that can supply voltages up to 28V from input voltages in the range of 1.8V to 6V. The EVM is configured to supply a highly efficient, digitally adjustable, 18-V output for LCD bias supplies. This EVM (...)

使用指南: PDF
TI.com 無法提供
模擬型號

TPS61045 Macromodels Transient

SLVMD16.ZIP (92 KB) - SIMPLIS Model
模擬型號

TPS61045 Unencrypted PSpice Transient Model Package (Rev. A)

SLVM359A.ZIP (41 KB) - PSpice Model
封裝 引腳 下載
VSON (DRB) 8 檢視選項

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