TPS62441 Series

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

Catalog

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

Part	Topology	Voltage - Input (Min) [Min]	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Current - Output	Voltage - Input (Max) [Max]	Voltage - Output (Max) [Max]	Synchronous Rectifier	Output Type	Mounting Type	Frequency - Switching	Function	Supplier Device Package [y]	Supplier Device Package [x]	Supplier Device Package	Number of Outputs	Voltage - Output (Min/Fixed)	Output Configuration
Texas Instruments TPS62441RQRR	Buck	2.75 V	14-VFQFN	150 °C	-40 °C	1 A	6 V	5.5 V		Adjustable	Surface Mount	2.25 MHz	Step-Down	2.7	2.3	14-VQFN-HR	2	0.6 V	Positive

Key Features

• Functional Safety-CapableDocumentation available to aid functional safety system design0.6-V to 5.5-V dual-channel, output voltage1-A/1-A, 2-A/2-A, 3-A/1-A output currents2.75-V to 6-V input voltage range1% feedback voltage accuracy (PWM operation)T J = –40°C to +150°CTwo precise ENABLE inputs allow:User-defined undervoltage lockoutExact sequencingTwo power-good outputs with window comparator1.8-MHz to 4-MHz adjustable switching frequencyOptional synchronization to external clockOptional spread spectrum clockingForced PWM or PWM/PFM operationSelectable compensation network up to 200 µF22-µA quiescent current180° phase shifted operation100% duty cycle modeActive output dischargeThermal shutdown protection2.3-mm × 2.7-mm QFN packageFunctional Safety-CapableDocumentation available to aid functional safety system design0.6-V to 5.5-V dual-channel, output voltage1-A/1-A, 2-A/2-A, 3-A/1-A output currents2.75-V to 6-V input voltage range1% feedback voltage accuracy (PWM operation)T J = –40°C to +150°CTwo precise ENABLE inputs allow:User-defined undervoltage lockoutExact sequencingTwo power-good outputs with window comparator1.8-MHz to 4-MHz adjustable switching frequencyOptional synchronization to external clockOptional spread spectrum clockingForced PWM or PWM/PFM operationSelectable compensation network up to 200 µF22-µA quiescent current180° phase shifted operation100% duty cycle modeActive output dischargeThermal shutdown protection2.3-mm × 2.7-mm QFN package

Description

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.