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TPS65265

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4.5- to 17-V Input Voltage, 5-A/3-A/2-A Output Current Triple Buck Converter

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Data sheet

TPS65265

ACTIVE
Data sheet Order now

Product details

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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Technical documentation

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Type Title Date
* 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 22 May 2023
EVM User's guide TPS65265EVM-705 Buck Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 11 May 2021
Application note Measure Power Stage Gain and Slope Compensation in PCM (Peak Current Mode) BUCK (Rev. A) PDF | HTML 01 Apr 2019
Application note TPS65250/1/2/3 LAYOUT GUIDE 15 Jan 2013

Design & development

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Evaluation board

TPS65265EVM-705 — TPS65265 PMIC 5A, 3A, 2A Output Current Evaluation Module

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 (...)

User guide: PDF | HTML
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Simulation model

TPS65265 Unencrypted PSpice Average Model Package (Rev. A)

SLVMBE7A.ZIP (108 KB) - PSpice Model
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Package Pins CAD symbols, footprints & 3D models
VQFN (RHB) 32 Ultra Librarian
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