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TPS65268-Q1

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4-V to 8-V, 3-A, 2-A Triple Synchronous Step-Down Converter

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Data sheet

TPS65268-Q1

ACTIVE
Data sheet Order now

Product details

Vin (min) (V) 4 Vin (max) (V) 8 Vout (min) (V) 0.6 Vout (max) (V) 6 Iout (max) (A) 3 Iq (typ) (mA) 0.6 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2300 Features Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Phase Interleaving, Power good, Soft Start Adjustable, Synchronous Rectification, UVLO adjustable Operating temperature range (°C) -40 to 125 Rating Automotive Regulated outputs (#) 3 Control mode current mode Duty cycle (max) (%) 100 Type Converter
Vin (min) (V) 4 Vin (max) (V) 8 Vout (min) (V) 0.6 Vout (max) (V) 6 Iout (max) (A) 3 Iq (typ) (mA) 0.6 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2300 Features Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Phase Interleaving, Power good, Soft Start Adjustable, Synchronous Rectification, UVLO adjustable Operating temperature range (°C) -40 to 125 Rating Automotive Regulated outputs (#) 3 Control mode current mode Duty cycle (max) (%) 100 Type Converter
VQFN (RHB) 32 25 mm² 5 x 5
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C operating junction temperature
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C4B
  • Operating input voltage range 4-V to 8-V maximum continuous output current 3 A, 2 A, 2 A
  • Feedback reference voltage 0.6 V ±1%
  • Adjustable clock frequency from 200 kHz to 2.3 MHz
  • Forced continuous current mode (FCCM)
  • External clock synchronization
  • Dedicated enable and soft-start pins for each buck
  • Output voltage power-good indicator
  • Thermal overloading protection
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C operating junction temperature
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C4B
  • Operating input voltage range 4-V to 8-V maximum continuous output current 3 A, 2 A, 2 A
  • Feedback reference voltage 0.6 V ±1%
  • Adjustable clock frequency from 200 kHz to 2.3 MHz
  • Forced continuous current mode (FCCM)
  • External clock synchronization
  • Dedicated enable and soft-start pins for each buck
  • Output voltage power-good indicator
  • Thermal overloading protection

The TPS65268-Q1 device incorporates triple-synchronous buck converters with 4-V to 8-V wide input voltage. 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 is adjustable from 200 kHz to 2.3 MHz with an external resistor. Operation that is 180° out-of-phase between BUCK1 and BUCK2, and BUCK3 (BUCK2 and BUCK3 run in phase) minimizes the input filter requirements.

Each buck converter in the TPS65268-Q1 device operates in forced continuous-current mode (FCCM) at light load condition for reduced output voltage ripple and improved load transient response.

The TPS65268-Q1 device features overvoltage, overcurrent, short-circuit, and overtemperature protection.

The TPS65268-Q1 device incorporates triple-synchronous buck converters with 4-V to 8-V wide input voltage. 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 is adjustable from 200 kHz to 2.3 MHz with an external resistor. Operation that is 180° out-of-phase between BUCK1 and BUCK2, and BUCK3 (BUCK2 and BUCK3 run in phase) minimizes the input filter requirements.

Each buck converter in the TPS65268-Q1 device operates in forced continuous-current mode (FCCM) at light load condition for reduced output voltage ripple and improved load transient response.

The TPS65268-Q1 device features overvoltage, overcurrent, short-circuit, and overtemperature protection.
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* Data sheet TPS65268-Q1 4-V to 8-V, Automotive, 3-A, 2-A, 2-A, Triple, Synchronous Step-Down Converter datasheet (Rev. C) PDF | HTML 11 May 2023
Application note Low Conducted EMI Power Solution for Automotive Digital Cockpit With LMR14050 an 07 Feb 2018

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