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AC/DC 和 DC/DC 轉換器 (整合式 FET)

TPS568230

現行

針對解決方案成本進行最佳化的 4.5V 至 18V、8A 同步 SWIFT™ 降壓轉換器

立即訂購
產品規格表

TPS568230

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Topology Buck Iout (max) (A) 8 Vin (max) (V) 18 Vin (min) (V) 4.5 Vout (max) (V) 7 Vout (min) (V) 0.6 Features Enable, Forced PWM, Light-load efficiency, Overcurrent protection, Power good, Soft-start adjustable, Synchronous rectification Control mode D-CAP3 Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 1000 Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 110 Duty cycle (max) (%) 85 Type Converter
Rating Catalog Topology Buck Iout (max) (A) 8 Vin (max) (V) 18 Vin (min) (V) 4.5 Vout (max) (V) 7 Vout (min) (V) 0.6 Features Enable, Forced PWM, Light-load efficiency, Overcurrent protection, Power good, Soft-start adjustable, Synchronous rectification Control mode D-CAP3 Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 1000 Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 110 Duty cycle (max) (%) 85 Type Converter
VQFN-HR (RJE) 20 9 mm² 3 x 3
  • Input voltage range: 4.5 V to 18 V
  • D-CAP3™ architecture control for fast transient response
  • Output voltage range: 0.6 V to 7 V
  • 0.6-V±1% reference voltage (25°C)
  • Supports 8-A continuous output current
  • Integrated 19.5-mΩ and 9.5-mΩ RDS(on) internal power MOSFET
  • ULQ™(Ultra Low Quiescent current) feature to enable long battery life
  • Selectable operation modes:
    • Forced continuous conduction mode (FCCM)
    • Out-of-Audio™(OOA) Mode
    • Advanced Eco-Mode™
  • Selectable 600-kHz, 800-kHz and 1-MHz switching frequency
  • Supports up to 90% duty operation
  • Adjustable soft start time by SS pin
  • Power good output
  • Built-in output discharge function
  • Cycle-by-cycle over current protection
  • Non-latched for fault protection
  • Small 3.0-mm × 3.0-mm HotRod™ QFN package
  • Input voltage range: 4.5 V to 18 V
  • D-CAP3™ architecture control for fast transient response
  • Output voltage range: 0.6 V to 7 V
  • 0.6-V±1% reference voltage (25°C)
  • Supports 8-A continuous output current
  • Integrated 19.5-mΩ and 9.5-mΩ RDS(on) internal power MOSFET
  • ULQ™(Ultra Low Quiescent current) feature to enable long battery life
  • Selectable operation modes:
    • Forced continuous conduction mode (FCCM)
    • Out-of-Audio™(OOA) Mode
    • Advanced Eco-Mode™
  • Selectable 600-kHz, 800-kHz and 1-MHz switching frequency
  • Supports up to 90% duty operation
  • Adjustable soft start time by SS pin
  • Power good output
  • Built-in output discharge function
  • Cycle-by-cycle over current protection
  • Non-latched for fault protection
  • Small 3.0-mm × 3.0-mm HotRod™ QFN package

The TPS568230 is a cost effective, high-voltage input, high efficiency synchronous buck converter with integrated MOSFETs.

The TPS568230 has the ULQ™ (Ultra Low Quiescent current) feature to enable low-bias current. It operates with supply input voltage from 4.5 V to 18 V. It uses DCAP3™ control mode to provide fast transient response, good line, load regulation, no requirement for external compensation, and support low equivalent series resistance (ESR) output capacitors such as specialty polymer and ultra-low ESR ceramic capacitors.

The TPS568230 provides complete Over-voltage, Under-voltage, Over-current, Over-temperature and Under-voltage lock-out protections. It is combined power good signal , output discharge function and large duty operation feature.

TPS568230 is equipped with a MODE pin to select the desirable mode of operation. To attain high efficiency at light load, OOA mode and Advanced Eco-mode™ could be selected. OOA mode will not allow the part to go below audible frequency ( below 25kHz switching frequency ). FCCM is also available to support tight output voltage ripple requirement.

The TPS568230 supports both internal and external soft-start time option. The internal fixed soft-start time is 1.3 ms. Longer soft-start time can be get by connecting the external capacitor on SS pin.

The TPS568230 is available in a 20-pin 3.0-mm x 3.0-mm HotRod™ package and the junction temperature is specified from -40oC to 125oC.

The TPS568230 is a cost effective, high-voltage input, high efficiency synchronous buck converter with integrated MOSFETs.

The TPS568230 has the ULQ™ (Ultra Low Quiescent current) feature to enable low-bias current. It operates with supply input voltage from 4.5 V to 18 V. It uses DCAP3™ control mode to provide fast transient response, good line, load regulation, no requirement for external compensation, and support low equivalent series resistance (ESR) output capacitors such as specialty polymer and ultra-low ESR ceramic capacitors.

The TPS568230 provides complete Over-voltage, Under-voltage, Over-current, Over-temperature and Under-voltage lock-out protections. It is combined power good signal , output discharge function and large duty operation feature.

TPS568230 is equipped with a MODE pin to select the desirable mode of operation. To attain high efficiency at light load, OOA mode and Advanced Eco-mode™ could be selected. OOA mode will not allow the part to go below audible frequency ( below 25kHz switching frequency ). FCCM is also available to support tight output voltage ripple requirement.

The TPS568230 supports both internal and external soft-start time option. The internal fixed soft-start time is 1.3 ms. Longer soft-start time can be get by connecting the external capacitor on SS pin.

The TPS568230 is available in a 20-pin 3.0-mm x 3.0-mm HotRod™ package and the junction temperature is specified from -40oC to 125oC.

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類型 標題 日期
* Data sheet TPS568230 4.5-V to 18-V Input, 8-A Synchronous Step-Down Voltage Regulator datasheet (Rev. C) PDF | HTML 2019年 8月 8日
Application note How the Switching Frequency Affects the Performance of Buck Converter (Rev. A) PDF | HTML 2024年 4月 16日
Application note Peak Current Mode Converter Secondary Stage Filter Design for Low Ripple Power – Part II: Hybrid Sense Network PDF | HTML 2024年 2月 27日
Application note 8-A DC/DC Buck Converter Selection Guide of Mid-range VIN (1.5 V - 28 V) PDF | HTML 2023年 10月 6日
Application note Measuring the Bode Plot of D-CAP™, D-CAP2™, and D-CAP3™ DC/DC Converters (Rev. A) PDF | HTML 2023年 4月 21日
Application note Stability Analysis and Design of D-CAP2 and D-CAP3 Converter – Part 2 PDF | HTML 2021年 8月 2日
Application note Stability Analysis and Design of D-CAP2 and D-CAP3 Converter – Part 1 PDF | HTML 2021年 6月 9日
Selection guide Buck Converter Quick Reference Guide (Rev. B) 2021年 4月 8日
Certificate TPS568230EVM EU RoHS Declaration of Conformity (DoC) 2020年 9月 17日
Application note Large Duty Cycle Operation With the TPS568230 2020年 3月 31日
Technical article How to choose a DC/DC converter for a storage application PDF | HTML 2019年 5月 9日
Application note Understanding OOA Operation Mode 2019年 2月 15日

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開發板

TPS568230EVM — 8-A 同步降壓穩壓器評估模組

TPS568230 評估模組 (EVM) 是完全組裝且經過測試的電路，用於評估 TPS568230 降壓轉換器。TPS568230EVM 可在 4.5V 至 18V 輸入之間運作（12-V 額定值），並提供 1.05V、8A 輸出。多個跨接器和開關允許使用者評估不同的控制功能、內部或外部 SS，以及啟用或停用。
使用指南: PDF | HTML
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模擬型號

TPS568230 PSpice Transient Model

SLVMCZ2.ZIP (100 KB) - PSpice Model
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VQFN-HR (RJE) 20 Ultra Librarian
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