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AC/DC 和 DC/DC 轉換器 (整合式 FET)

TPS65265

現行

4.5 至 17-V 輸入電壓、5-A/3-A/2-A 輸出電流三路降壓轉換器

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產品規格表

TPS65265

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 Topology Buck Type Converter Iout (max) (A) 5 Vin (min) (V) 4.5 Vin (max) (V) 17 Switching frequency (min) (kHz) 250 Switching frequency (max) (kHz) 2300 Features Enable, Soft Start Fixed, UVLO adjustable Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 15 Iq (typ) (µA) 11.5 Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 5 Vin (min) (V) 4.5 Vin (max) (V) 17 Switching frequency (min) (kHz) 250 Switching frequency (max) (kHz) 2300 Features Enable, Soft Start Fixed, UVLO adjustable Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 15 Iq (typ) (µA) 11.5 Duty cycle (max) (%) 100
VQFN (RHB) 32 25 mm² 5 x 5
  • Operating input voltage range 4.5 V to 17 V
  • Feedback reference voltage 0.6 V ±1.33%
  • Continuous output current 5 A/3 A/2 A
  • Adjustable clock frequency from 250 kHz to 2.3 MHz
  • External synchronization oscillator
  • 120° out of phase for Buck1, Buck2, Buck3
  • Dedicated enable pins for each buck
  • Fixed SS time for each buck (2.4 ms)
  • Automatic power-up, power-down sequence and adjustable interval time between bucks (6 combinations)
  • Support Pulse Skipping Mode (PSM) and Forced Continuous Current Mode (FCCM)
  • Output voltage power-good indicator and adjustable delay time
  • Thermal overloading protection
  • 32-pin QFN (RHB) 5-mm × 5-mm package
  • Operating input voltage range 4.5 V to 17 V
  • Feedback reference voltage 0.6 V ±1.33%
  • Continuous output current 5 A/3 A/2 A
  • Adjustable clock frequency from 250 kHz to 2.3 MHz
  • External synchronization oscillator
  • 120° out of phase for Buck1, Buck2, Buck3
  • Dedicated enable pins for each buck
  • Fixed SS time for each buck (2.4 ms)
  • Automatic power-up, power-down sequence and adjustable interval time between bucks (6 combinations)
  • Support Pulse Skipping Mode (PSM) and Forced Continuous Current Mode (FCCM)
  • Output voltage power-good indicator and adjustable delay time
  • Thermal overloading protection
  • 32-pin QFN (RHB) 5-mm × 5-mm package

The TPS65265 incorporates triple synchronous buck converters with 4.5-V to 17-V wide input voltage range that encompassed most intermediate bus voltage operating off 5-, 9-, 12- or 15-V power bus or battery. The converter with constant frequency peak current mode is designed to simplify its application while giving designers options to optimize the system according to targeted applications. The switching frequency of the converters can be adjustable from 250 kHz to 2.3 MHz with an external resistor or external clock. 120° out-of-phase operation between Buck1, Buck2, and Buck3 minimizes the input filter requirements.

The TPS65265 operates in pulse skipping mode (PSM) with driving MODE pin to high or leaving float and operates in force continuous current mode (FCC) with connecting MODE pin to GND. PSM mode provides high efficiency by reducing switching losses at light load and FCC mode reduces noise susceptibility and RF interference.

The TPS65265 is available in a 32-pin thermal enhanced QFN (RHB) 5-mm × 5-mm thin package.

The TPS65265 incorporates triple synchronous buck converters with 4.5-V to 17-V wide input voltage range that encompassed most intermediate bus voltage operating off 5-, 9-, 12- or 15-V power bus or battery. The converter with constant frequency peak current mode is designed to simplify its application while giving designers options to optimize the system according to targeted applications. The switching frequency of the converters can be adjustable from 250 kHz to 2.3 MHz with an external resistor or external clock. 120° out-of-phase operation between Buck1, Buck2, and Buck3 minimizes the input filter requirements.

The TPS65265 operates in pulse skipping mode (PSM) with driving MODE pin to high or leaving float and operates in force continuous current mode (FCC) with connecting MODE pin to GND. PSM mode provides high efficiency by reducing switching losses at light load and FCC mode reduces noise susceptibility and RF interference.

The TPS65265 is available in a 32-pin thermal enhanced QFN (RHB) 5-mm × 5-mm thin package.
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類型 標題 日期
* Data sheet TPS65265 4.5-V to 17-V Input Voltage, 5-A/3-A/2-A Output Current Triple Synchronous Step-Down Converter datasheet (Rev. B) PDF | HTML 2023年 5月 22日
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 2024年 4月 30日
EVM User's guide TPS65265EVM-705 Buck Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 2021年 5月 11日
Application note Measure Power Stage Gain and Slope Compensation in PCM (Peak Current Mode) BUCK (Rev. A) PDF | HTML 2019年 4月 1日
Application note TPS65250/1/2/3 LAYOUT GUIDE 2013年 1月 15日

設計與開發

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開發板

TPS65265EVM-705 — TPS65265 PMIC 5A、3A、2A 輸出電流評估模組

The TPS65265EVM-705 evaluation module facilitates evaluation of the TPS65265. The TPS65265 PMIC is a triple 5A/3A/2A output current, synchronous step-down (buck) converter with an operational range of 4.5 to 17V. The feedback voltage reference for each buck is 0.6V. Each buck is independent with (...)

使用指南: PDF | HTML
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模擬型號

TPS65265 Unencrypted PSpice Average Model Package (Rev. A)

SLVMBE7A.ZIP (108 KB) - PSpice Model
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參考設計

PMP40041 — 4.5V 至 14V 輸入三軌輸出 POL 參考設計

The PMP40041 is a reference design which uses the TPS56265 to generate three output rails. The input voltage range is 4.5V to 14V. The TPS65265 incorporates a triple synchronous buck converter with continuous output current 5A/3A/2A . The PMP40041 has dedicated headers to switch the output voltage (...)
Test report: PDF
電路圖: PDF
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VQFN (RHB) 32 Ultra Librarian
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