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AC/DC 和 DC/DC 轉換器 (整合式 FET)

TPS60402

現行

具有固定 50kHz 運作的 60mA 電荷泵電壓逆變器

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產品規格表

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LM27761 現行 具整合式 LDO 的低雜訊穩壓轉換器 Inverter with integrated LDO for low noise output

TPS60402

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Operating temperature range (°C) -40 to 85 Type Charge pump Iout (max) (A) 0.06 Vin (min) (V) 1.6 Vin (max) (V) 5.25 Switching frequency (min) (kHz) 30 Switching frequency (max) (kHz) 80 Features Light Load Efficiency Mode, Synchronous Rectification, Unregulated Vout (min) (V) -5.25 Vout (max) (V) -1.6 Iq (typ) (µA) 275
Rating Catalog Operating temperature range (°C) -40 to 85 Type Charge pump Iout (max) (A) 0.06 Vin (min) (V) 1.6 Vin (max) (V) 5.25 Switching frequency (min) (kHz) 30 Switching frequency (max) (kHz) 80 Features Light Load Efficiency Mode, Synchronous Rectification, Unregulated Vout (min) (V) -5.25 Vout (max) (V) -1.6 Iq (typ) (µA) 275
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • Inverts Input Supply Voltage
  • Up to 60-mA Output Current
  • Only Three Small 1-µF Ceramic Capacitors Needed
  • Input Voltage Range From 1.6 V to 5.5 V
  • PowerSave-Mode for Improved Efficiency at Low-Output Currents (TPS60400)
  • Device Quiescent Current Typical 65 µA
  • Integrated Active Schottky-Diode for Start-up Into Load
  • Small 5-Pin SOT-23 Package
  • Evaluation Module Available TPS60400EVM-178
  • Inverts Input Supply Voltage
  • Up to 60-mA Output Current
  • Only Three Small 1-µF Ceramic Capacitors Needed
  • Input Voltage Range From 1.6 V to 5.5 V
  • PowerSave-Mode for Improved Efficiency at Low-Output Currents (TPS60400)
  • Device Quiescent Current Typical 65 µA
  • Integrated Active Schottky-Diode for Start-up Into Load
  • Small 5-Pin SOT-23 Package
  • Evaluation Module Available TPS60400EVM-178

The TPS6040x family of devices generates an unregulated negative output voltage from an input voltage ranging from 1.6 V to 5.5 V. The devices are typically supplied by a preregulated supply rail of 5 V or 3.3 V. Due to its wide input voltage range, two or three NiCd, NiMH, or alkaline battery cells, as well as one Li-Ion cell can also power them.

Only three external 1-µF capacitors are required to build a complete DC-DC charge pump inverter. Assembled in a 5-pin SOT-23 package, the complete converter can be built on a 50-mm2 board area. Additional board area and component count reduction is achieved by replacing the Schottky diode that is typically needed for start-up into load by integrated circuitry.

The TPS6040x can deliver a maximum output current of 60 mA with a typical conversion efficiency of greater than 90% over a wide output current range. Three device options with 20-kHz, 50-kHz, and 250-kHz fixed-frequency operation are available. TPS60400 comes with a variable switching frequency to reduce operating current in applications with a wide load range and enables the design with low-value capacitors.

The TPS6040x family of devices generates an unregulated negative output voltage from an input voltage ranging from 1.6 V to 5.5 V. The devices are typically supplied by a preregulated supply rail of 5 V or 3.3 V. Due to its wide input voltage range, two or three NiCd, NiMH, or alkaline battery cells, as well as one Li-Ion cell can also power them.

Only three external 1-µF capacitors are required to build a complete DC-DC charge pump inverter. Assembled in a 5-pin SOT-23 package, the complete converter can be built on a 50-mm2 board area. Additional board area and component count reduction is achieved by replacing the Schottky diode that is typically needed for start-up into load by integrated circuitry.

The TPS6040x can deliver a maximum output current of 60 mA with a typical conversion efficiency of greater than 90% over a wide output current range. Three device options with 20-kHz, 50-kHz, and 250-kHz fixed-frequency operation are available. TPS60400 comes with a variable switching frequency to reduce operating current in applications with a wide load range and enables the design with low-value capacitors.
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類型 標題 日期
* Data sheet TPS6040x Unregulated 60-mA Charge Pump Voltage Inverter datasheet (Rev. C) PDF | HTML 2020年 11月 10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 Extending the Soft Start Time Without a Soft Start Pin (Rev. B) 2017年 6月 15日
Analog Design Journal Design considerations for a resistive feedback divider in a DC/DC converter 2012年 4月 26日
EVM User's guide TPS60400EVM-178 for Evaluating TPS6040x Charge Pump Devices 2001年 8月 7日

設計與開發

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開發板

TPS60400EVM-178 — 充電泵逆變器的評估模組 (裸 PCB)

Need for use: The EVM does not contain any components. The pcb therefore first has to be populated with the appropriate components. A description of different applications that can be tested using the EVM can be found in the TPS60400EVM users guide. Samples of the TPS6040x family can be (...)

使用指南: PDF
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Gerber 檔案

TPS6040xVM Gerber Files

SLVC142.ZIP (261 KB)
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參考設計

TIDA-00349 — 適用於超低功耗與低功耗應用的獨特效率隔離式 DC/DC 轉換器參考設計

This reference design is an isolated DC/DC converter turn-key design that delives high efficiency up to 85% from ultra-low power up to 60 mW. Open-loop control removes the need for opto-couplers, while a primary side half-bridge topology operating at 60 kHz and secondary side Schottky (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00189 — 隔離迴路供電熱電偶發送器參考設計

The Isolated Loop powered Thermocouple Transmitter reference design is a system solution providing precision K-type thermocouple measurements for 4 to 20-mA isolated current-loop applications. This design is intended as an evaluation module for users to fast prototype and develop end-products for (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-010018 — 適用於低功耗應用的隔離式電源和數據介面參考設計

This reference design provides power and data isolation for low and ultra-low power applications. Generating isolated and non-isolated power rails with a high efficiency and containing a power efficient isolated data interface for three forward- plus one reverse-direction channels. Targeted (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00459 — 適用於隔離式低功耗應用的高效率電源和數據傳輸參考設計

TIDA-00459 provides a turnkey solution for the design and evaluation of sensor transmitters and other applications requiring  isolated data transmission and isolated power conversion. The design is based on the LaunchPadTM form factor and showcases a unique power saving methode for (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00167 — 適用於 4 至 20 mA 迴路供電發送器的隔離式超低功耗設計

The objective of this design is to provide a turn-key solution able to power the electronics of isolated loop powered 4 to 20 mA transmitters or other low power applications with limited input current budget. It addresses the key requirements of such applications like operating over (...)
Design guide: PDF
電路圖: PDF
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SOT-23 (DBV) 5 Ultra Librarian
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