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TPS62441

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2.75-V to 6-V, dual 1-A step-down converter in QFN package

Product details

Vin (min) (V) 2.75 Vin (max) (V) 6 Vout (min) (V) 0.6 Vout (max) (V) 5.5 Iout (max) (A) 1 Iq (typ) (mA) 0.022 Switching frequency (min) (kHz) 1800 Switching frequency (max) (kHz) 4000 Features Enable, Forced PWM, Frequency synchronization, Light Load Efficiency, Output discharge, Over Current Protection, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO adjustable Operating temperature range (°C) -40 to 150 Rating Catalog TI functional safety category Functional Safety-Capable Regulated outputs (#) 2 Control mode current mode Duty cycle (max) (%) 100 Type Converter
Vin (min) (V) 2.75 Vin (max) (V) 6 Vout (min) (V) 0.6 Vout (max) (V) 5.5 Iout (max) (A) 1 Iq (typ) (mA) 0.022 Switching frequency (min) (kHz) 1800 Switching frequency (max) (kHz) 4000 Features Enable, Forced PWM, Frequency synchronization, Light Load Efficiency, Output discharge, Over Current Protection, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO adjustable Operating temperature range (°C) -40 to 150 Rating Catalog TI functional safety category Functional Safety-Capable Regulated outputs (#) 2 Control mode current mode Duty cycle (max) (%) 100 Type Converter
VQFN-HR (RQR) 14 6.21 mm² 2.7 x 2.3
  • Functional Safety-Capable
  • 0.6-V to 5.5-V dual-channel, output voltage
  • 1-A/1-A, 2-A/2-A, 3-A/1-A output currents
  • 2.75-V to 6-V input voltage range
  • 1% feedback voltage accuracy (PWM operation)
  • T J = –40°C to +150°C
  • Two precise ENABLE inputs allow:
    • User-defined undervoltage lockout
    • Exact sequencing
  • Two power-good outputs with window comparator
  • 1.8-MHz to 4-MHz adjustable switching frequency
  • Optional synchronization to external clock
  • Optional spread spectrum clocking
  • Forced PWM or PWM/PFM operation
  • Selectable compensation network up to 200 µF
  • 22-µA quiescent current
  • 180° phase shifted operation
  • 100% duty cycle mode
  • Active output discharge
  • Thermal shutdown protection
  • 2.3-mm × 2.7-mm QFN package
  • Functional Safety-Capable
  • 0.6-V to 5.5-V dual-channel, output voltage
  • 1-A/1-A, 2-A/2-A, 3-A/1-A output currents
  • 2.75-V to 6-V input voltage range
  • 1% feedback voltage accuracy (PWM operation)
  • T J = –40°C to +150°C
  • Two precise ENABLE inputs allow:
    • User-defined undervoltage lockout
    • Exact sequencing
  • Two power-good outputs with window comparator
  • 1.8-MHz to 4-MHz adjustable switching frequency
  • Optional synchronization to external clock
  • Optional spread spectrum clocking
  • Forced PWM or PWM/PFM operation
  • Selectable compensation network up to 200 µF
  • 22-µA quiescent current
  • 180° phase shifted operation
  • 100% duty cycle mode
  • Active output discharge
  • Thermal shutdown protection
  • 2.3-mm × 2.7-mm QFN package

The TPS6244x is a family of pin-to-pin dual 1-A, dual 2-A, and 3-A/1-A high-efficiency and easy-to-use synchronous step-down DC/DC converters. The device family is based on a peak current mode control topology. The devices are designed for industrial applications such as motor drives and robotics. Low resistive switches allow up to 3-A continuous output current and 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 in the same frequency range. In PWM/PFM mode, the TPS6244x automatically enters power save mode at light loads to maintain high efficiency across the whole load range. The TPS6244x provides a 1% output voltage accuracy in PWM mode, which helps design a power supply with high output voltage accuracy.

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

The TPS6244x is a family of pin-to-pin dual 1-A, dual 2-A, and 3-A/1-A high-efficiency and easy-to-use synchronous step-down DC/DC converters. The device family is based on a peak current mode control topology. The devices are designed for industrial applications such as motor drives and robotics. Low resistive switches allow up to 3-A continuous output current and 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 in the same frequency range. In PWM/PFM mode, the TPS6244x automatically enters power save mode at light loads to maintain high efficiency across the whole load range. The TPS6244x provides a 1% output voltage accuracy in PWM mode, which helps design a power supply with high output voltage accuracy.

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

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Technical documentation

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Type Title Date
* Data sheet TPS6244x 2.75-V to 6-V, Dual-Channel Step-Down Converter with Adjustable Frequency and 1% Accuracy in QFN package datasheet (Rev. A) PDF | HTML 18 May 2023
Functional safety information TPS6244x Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 03 Mar 2022

Design & development

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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
Not available on TI.com
Schematic

TMDSCNCD28P65X Schematic (Rev. A)

SPRR478A.PDF (1269 KB)
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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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VQFN-HR (RQR) 14 View options

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