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TPS84259

現行

4.5V 至 40V、2A 至 15W 負輸出整合式電源解決方案

現在提供此產品的更新版本

open-in-new 比較替代產品
功能相同,但引腳輸出與所比較的裝置不同
TPSM63603 現行 高密度、3-V 至 36-V 輸入、1-V 至 16-V 輸出、3-A 電源模組 Smaller footprint, lower EMI and configurable in inverting buck-boost.

產品詳細資料

Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck-Boost, Inverting Type Converter Iout (max) (A) 2 Vin (min) (V) 4.5 Vin (max) (V) 40 Vout (min) (V) -3 Vout (max) (V) -17 Switching frequency (min) (kHz) 700 Switching frequency (max) (kHz) 900 Features Over Current Protection
Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck-Boost, Inverting Type Converter Iout (max) (A) 2 Vin (min) (V) 4.5 Vin (max) (V) 40 Vout (min) (V) -3 Vout (max) (V) -17 Switching frequency (min) (kHz) 700 Switching frequency (max) (kHz) 900 Features Over Current Protection
B1QFN (RKG) 41 99 mm² 11 x 9
  • Complete Integrated Power Solution Allows
    Small Footprint, Low-Profile Design
  • Wide Input-Voltage Range from 4.5 V to 40 V
  • Output Adjustable from  –3 V to –17 V
  • Supplies up to 2-A of Output Current
  • 45-V Surge Capability
  • Synchronizes to an External Clock
  • Adjustable Slow Start
  • Programmable Undervoltage Lockout (UVLO)
  • Output Overcurrent Protection
  • Overtemperature Protection
  • Operating Temperature Range: –40°C to +85°C
  • Enhanced Thermal Performance: 14°C/W
  • Meets EN55022 Class B Emissions
  • For Design Help visit http://www.ti.com/TPS84259
  • Complete Integrated Power Solution Allows
    Small Footprint, Low-Profile Design
  • Wide Input-Voltage Range from 4.5 V to 40 V
  • Output Adjustable from  –3 V to –17 V
  • Supplies up to 2-A of Output Current
  • 45-V Surge Capability
  • Synchronizes to an External Clock
  • Adjustable Slow Start
  • Programmable Undervoltage Lockout (UVLO)
  • Output Overcurrent Protection
  • Overtemperature Protection
  • Operating Temperature Range: –40°C to +85°C
  • Enhanced Thermal Performance: 14°C/W
  • Meets EN55022 Class B Emissions
  • For Design Help visit http://www.ti.com/TPS84259

The TPS84259 is an easy-to-use negative output voltage power module that combines a 15-W DC/DC converter with an inductor, and passives into a low-profile QFN package. This total power solution allows as few as five external components and eliminates the loop compensation and magnetics part selection process.

The 9 × 11 × 2.8 mm QFN package is easy to solder onto a printed circuit board. Its compact design also contains fewer components and possesses excellent power dissipation capability. The TPS84259 offers the flexibility and the feature-set of a discrete design and is ideal for powering a wide range of ICs and analog circuits requiring a negative output voltage. Advanced packaging technology affords a robust and reliable power solution, compatible with standard QFN mounting and testing techniques.

The TPS84259 is an easy-to-use negative output voltage power module that combines a 15-W DC/DC converter with an inductor, and passives into a low-profile QFN package. This total power solution allows as few as five external components and eliminates the loop compensation and magnetics part selection process.

The 9 × 11 × 2.8 mm QFN package is easy to solder onto a printed circuit board. Its compact design also contains fewer components and possesses excellent power dissipation capability. The TPS84259 offers the flexibility and the feature-set of a discrete design and is ideal for powering a wide range of ICs and analog circuits requiring a negative output voltage. Advanced packaging technology affords a robust and reliable power solution, compatible with standard QFN mounting and testing techniques.

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技術文件

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類型 標題 日期
* Data sheet TPS84259 4.5-V to 40-V Input, 15-W, Negative Output, Integrated Power Solution datasheet (Rev. D) 2018年 4月 11日
Application note Soldering Requirements for BQFN Packages (Rev. C) 2020年 3月 5日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
Application note AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A) 2013年 4月 23日
Application note Reducing Output Ripple and Noise with the TPS84259 2012年 11月 6日
More literature TPS84k Integrated Power Modules Info Card (Rev. A) 2012年 8月 28日
EVM User's guide Using the TPS84259EVM-001 2012年 6月 21日
More literature SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations 2005年 7月 12日
Application note AN-643 EMI/RFI Board Design (Rev. B) 2004年 5月 3日

設計與開發

如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。

模擬型號

TPS84259 Unencrypted PSpice Transient Model Package (Rev. A)

SLVM692A.ZIP (33 KB) - PSpice Model
計算工具

SLVC443 TPS84259 Calculator ver 1.0.2

支援產品和硬體

支援產品和硬體

產品
電源模組 (整合式電感器)
TPS84259 4.5V 至 40V、2A 至 15W 負輸出整合式電源解決方案
參考設計

PMP8372 — 具有低雜訊 LDO 分裂軌 (±5V) 輸出電壓的 40V 雙路 1A 電源模組參考設計

The PMP8372 design is optimized for small size and uses the TPS84250 step-down power module on the top- side with the TPS84259 negative output power module on the bottom-side to implement both positive and negative output voltages from a 12V/24V source. The output voltages can be adjusted from (...)
Test report: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
B1QFN (RKG) 41 Ultra Librarian

訂購與品質

內含資訊:
  • RoHS
  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中持續性的可靠性監測
內含資訊:
  • 晶圓廠位置
  • 組裝地點

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