TPS62442-Q1

ACTIVE

Automotive 2.75-V to 6-V, dual 2-A or 3-A and 1-A output, adjustable frequency, step-down converter

Product details

Rating Automotive Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 4 Vin (min) (V) 2.75 Vin (max) (V) 6 Switching frequency (min) (kHz) 1800 Switching frequency (max) (kHz) 4000 Features Enable, Output discharge, Power good, Spread Spectrum, Wettable flanks package Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 5.5 Iq (typ) (µA) 22 Duty cycle (max) (%) 100
Rating Automotive Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 4 Vin (min) (V) 2.75 Vin (max) (V) 6 Switching frequency (min) (kHz) 1800 Switching frequency (max) (kHz) 4000 Features Enable, Output discharge, Power good, Spread Spectrum, Wettable flanks package Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 5.5 Iq (typ) (µA) 22 Duty cycle (max) (%) 100
VQFN-HR (RQR) 14 6.21 mm² 2.7 x 2.3
  • AEC-Q100-qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C TA
  • Functional Safety-Capable
  • Input voltage range: 2.75 V to 6 V
  • Dual-channel output, output voltage from 0.6 V to 5.5 V
  • Output voltage accuracy ±1% (PWM operation)
  • Forced PWM or PWM and PFM operation
  • Adjustable switching frequency of 1.8 MHz to 4 MHz
  • Two precise ENABLE inputs allow:
    • User-defined undervoltage lockout
    • Exact sequencing
  • Two power-good outputs with window comparator
  • 180° phase shifted operation
  • 100% duty cycle mode
  • Active output discharge
  • Optional spread spectrum clocking
  • Optional foldback overcurrent protection
  • TJ = –40°C to +150°C
  • 2.3-mm × 2.7-mm QFN package with wettable flanks
  • AEC-Q100-qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C TA
  • Functional Safety-Capable
  • Input voltage range: 2.75 V to 6 V
  • Dual-channel output, output voltage from 0.6 V to 5.5 V
  • Output voltage accuracy ±1% (PWM operation)
  • Forced PWM or PWM and PFM operation
  • Adjustable switching frequency of 1.8 MHz to 4 MHz
  • Two precise ENABLE inputs allow:
    • User-defined undervoltage lockout
    • Exact sequencing
  • Two power-good outputs with window comparator
  • 180° phase shifted operation
  • 100% duty cycle mode
  • Active output discharge
  • Optional spread spectrum clocking
  • Optional foldback overcurrent protection
  • TJ = –40°C to +150°C
  • 2.3-mm × 2.7-mm QFN package with wettable flanks

The TPS6244x-Q1 is a family of pin-to-pin dual 1-A, dual 2-A or 3-A, and 1-A high-efficiency and easy-to-use synchronous step-down DC/DC converters. They are based on a peak current mode control topology. The devices are designed for automotive applications such as infotainment and advanced driver assistance systems. Low resistive switches allow up to 3-A continuous output current and a total maximum output current up to 4 A at high ambient temperature. The switching frequency is externally adjustable from 1.8 MHz to 4 MHz and can also be synchronized to an external clock from 2 MHz to 4 MHz. In PWM and PFM mode, the TPS6244x-Q1 automatically enters power save mode at light loads to maintain high efficiency across the whole load range. The TPS6244x-Q1 provides a 1% output voltage accuracy in PWM mode, which helps design a power supply with high output voltage accuracy.

The TPS6244x-Q1 is available as an adjustable voltage version, packaged in a VQFN package.

The TPS6244x-Q1 is a family of pin-to-pin dual 1-A, dual 2-A or 3-A, and 1-A high-efficiency and easy-to-use synchronous step-down DC/DC converters. They are based on a peak current mode control topology. The devices are designed for automotive applications such as infotainment and advanced driver assistance systems. Low resistive switches allow up to 3-A continuous output current and a total maximum output current up to 4 A at high ambient temperature. The switching frequency is externally adjustable from 1.8 MHz to 4 MHz and can also be synchronized to an external clock from 2 MHz to 4 MHz. In PWM and PFM mode, the TPS6244x-Q1 automatically enters power save mode at light loads to maintain high efficiency across the whole load range. The TPS6244x-Q1 provides a 1% output voltage accuracy in PWM mode, which helps design a power supply with high output voltage accuracy.

The TPS6244x-Q1 is available as an adjustable voltage version, packaged in a VQFN package.

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TPS62442 ACTIVE 2.75-V to 6-V, dual 2-A or 3-A and 1-A step-down converter in QFN package Industrial version with -40°C to 150°C temperature range, but without AEC-Q100 qualification.

Technical documentation

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Type Title Date
* Data sheet TPS6244x-Q1 2.75-V to 6-V Dual Step-Down Converter with Adjustable Frequency in a QFN Package datasheet (Rev. B) PDF | HTML 11 Jul 2022
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 30 Apr 2024
Application note Using the Filters with the DC/DC Step-Down Converter PDF | HTML 02 Feb 2023
User guide TPS62442EVM-122 User's Guide PDF | HTML 17 Nov 2021
Certificate TPS62442EVM-122 EU RoHS Declaration of Conformity (DoC) 12 Oct 2021
Functional safety information TPS6244x-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 15 Sep 2021

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS62442EVM-122 — TPS6244x-Q1 evaluation module 2.75-V to 6-V, dual step-down buck converter

The TPS6244x-Q1 device is a high-frequency, synchronous, dual step-down converter optimized for a small solution size and high efficiency. The devices focus on high-efficiency, dual step-down conversion over a wide output current range. The internal compensation circuit allows a compact solution (...)
User guide: PDF | HTML
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Simulation model

TPS62442 and TPS62442-Q1 PSpice Unencrypted Transient Model

SLUM819.ZIP (290 KB) - PSpice Model
Package Pins CAD symbols, footprints & 3D models
VQFN-HR (RQR) 14 Ultra Librarian

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