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TPS51388

現行

具有可調整輸出的 4.5-V 至 24-V 輸入、12-A 同步降壓轉換器

立即訂購
產品規格表

TPS51388

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 125 Topology Buck Type Converter Iout (max) (A) 12 Vin (min) (V) 4.5 Vin (max) (V) 24 Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 1000 Features Enable, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO Fixed Control mode D-CAP3 Vout (min) (V) 0.6 Vout (max) (V) 5.5 Iq (typ) (µA) 90 Duty cycle (max) (%) 98
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 12 Vin (min) (V) 4.5 Vin (max) (V) 24 Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 1000 Features Enable, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO Fixed Control mode D-CAP3 Vout (min) (V) 0.6 Vout (max) (V) 5.5 Iq (typ) (µA) 90 Duty cycle (max) (%) 98
VQFN-HR (VAB) 13 12 mm² 4 x 3
  • 4.5V to 24V input voltage range
  • 0.6V to 5.5V output voltage
  • Integrated 9.2mΩ and 4.5mΩ FETs
  • Support 12A continuous output current
  • 90uA low quiescent current
  • ± 1.0% reference voltage accuracy (25°C)
  • D-CAP3™ control mode architecture control for fast transient response
  • Support POSCAP and all MLCC output capacitor
  • Selectable Eco-mode and Out-of-Audio™ mode with dynamic change
  • ULQ™ extended battery life during system standby
  • Built-in output discharge function
  • Integrated power-good indicator
  • 600kHz and 1MHz selectable switching frequency
  • Fixed 1.0ms soft-start time
  • Large duty cycle operation
  • Cycle-by-cycle overcurrent and negative overcurrent protection
  • Latched output OV and UV protections
  • Non-latched UVLO and OT protections
  • –20°C to 125°C operating junction temperature
  • 13-pin 3.0mm × 4.0mm HotRod™ VQFN package
  • Create a custom design using the TPS51388 with the WEBENCH Power Designer
  • 4.5V to 24V input voltage range
  • 0.6V to 5.5V output voltage
  • Integrated 9.2mΩ and 4.5mΩ FETs
  • Support 12A continuous output current
  • 90uA low quiescent current
  • ± 1.0% reference voltage accuracy (25°C)
  • D-CAP3™ control mode architecture control for fast transient response
  • Support POSCAP and all MLCC output capacitor
  • Selectable Eco-mode and Out-of-Audio™ mode with dynamic change
  • ULQ™ extended battery life during system standby
  • Built-in output discharge function
  • Integrated power-good indicator
  • 600kHz and 1MHz selectable switching frequency
  • Fixed 1.0ms soft-start time
  • Large duty cycle operation
  • Cycle-by-cycle overcurrent and negative overcurrent protection
  • Latched output OV and UV protections
  • Non-latched UVLO and OT protections
  • –20°C to 125°C operating junction temperature
  • 13-pin 3.0mm × 4.0mm HotRod™ VQFN package
  • Create a custom design using the TPS51388 with the WEBENCH Power Designer

The device is a monolithic, 12A, synchronous buck converter with integrated MOSFETs that enable high efficiency and offer ease-of-use with minimum external component count for space-conscious power systems.

The TPS51388 employs D-CAP3 control mode that provides fast transient response and excellent line and load regulation with internal compensation. The ULQ extended battery life feature is extremely beneficial for long battery life in low power operation. The large duty operation greatly improves the load transient performance when input voltage is low.

The EN pin can be used to set Eco-mode or Out-of-Audio (OOA) mode for light-load operation. The Eco-mode maintains high efficiency during light load operation. The OOA mode keeps the switching frequency above audible frequency with minimum reduction in efficiency. The EN pin can be toggled dynamically, even when the converter is in operation.

The TPS51388 integrates a power-good indicator and provides an output discharge function. The TPS51388 provides complete protection including OVP, UVP, OCP, OTP, and UVLO. The device is available in a 13-pin, 3.0mm × 4.0mm HotRod package, and the junction temperature is specified from –20°C to 125°C.

The device is a monolithic, 12A, synchronous buck converter with integrated MOSFETs that enable high efficiency and offer ease-of-use with minimum external component count for space-conscious power systems.

The TPS51388 employs D-CAP3 control mode that provides fast transient response and excellent line and load regulation with internal compensation. The ULQ extended battery life feature is extremely beneficial for long battery life in low power operation. The large duty operation greatly improves the load transient performance when input voltage is low.

The EN pin can be used to set Eco-mode or Out-of-Audio (OOA) mode for light-load operation. The Eco-mode maintains high efficiency during light load operation. The OOA mode keeps the switching frequency above audible frequency with minimum reduction in efficiency. The EN pin can be toggled dynamically, even when the converter is in operation.

The TPS51388 integrates a power-good indicator and provides an output discharge function. The TPS51388 provides complete protection including OVP, UVP, OCP, OTP, and UVLO. The device is available in a 13-pin, 3.0mm × 4.0mm HotRod package, and the junction temperature is specified from –20°C to 125°C.

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類型 標題 日期
* Data sheet TPS51388 4.5V to 24V, 12A, Synchronous Buck Converter datasheet PDF | HTML 2024年 9月 4日
EVM User's guide TPS51388 Step-Down Converter Evaluation Module User's Guide PDF | HTML 2024年 9月 3日

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開發板

TPS51388EVM — TPS51388 評估模組

TPS51388EVM 是完全組裝且經過測試的電路，可用於評估 TPS51388 轉換器。評估模組設定為在 5.5V 至 24V 輸入電壓範圍內運作，並且提供最高 12A 負載電流的穩壓 5.15V 輸出。裝置的大多數設定皆可透過跨接器輕鬆調整或設定，例如操作模式 (OOA 或 ECO)、外部旁路電源和切換頻率。
使用指南: PDF | HTML
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  • 進行中持續性的可靠性監測
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