TPS628510 Series

2.7-V to 6-V, 0.5-A, fixed-frequency, step-down converter in SOT583 package

Catalog

2.7-V to 6-V, 0.5-A, fixed-frequency, step-down converter in SOT583 package

Part	Frequency - Switching	Output Type	Output Configuration	Package / Case	Supplier Device Package	Voltage - Output (Min/Fixed)	Voltage - Input (Max) [Max]	Current - Output	Voltage - Input (Min) [Min]	Mounting Type	Synchronous Rectifier	Operating Temperature [Max]	Operating Temperature [Min]	Number of Outputs	Voltage - Output (Max) [Max]	Topology	Function
Texas Instruments TPS628510DRLR	2.25 MHz	Adjustable	Positive	SOT-583	SOT-583	0.6 V	6 V	500 mA	2.7 V	Surface Mount		150 °C	-40 °C	1	5.5 V	Buck	Step-Down

Catalog

2.7-V to 6-V, 0.5-A, fixed-frequency, step-down converter in SOT583 package

Key Features

• Functional Safety-CapableDocumentation available to aid functional safety system designInput voltage range: 2.7 V to 6 VOutput voltage from 0.6 V to 5.5 V1% feedback voltage accuracy (full temperature range)TJ= –40°C to +150°CFamily of 0.5-A, 1-A, 2-A (continuous), and 3-A (peak) devicesSwitching frequency in PWM: 2.25 MHzExternal synchronization from 1.8 MHz to 4 MHzForced PWM or PWM/PFM operationQuiescent current: 17 µA (typical)Adjustable soft start-up to 10 msPrecise ENABLE input allows:User-defined undervoltage lockoutExact sequencing100% duty cycle modeActive output dischargePower-good output with window comparatorFor device options with selectable compensation, see theTPS628501Functional Safety-CapableDocumentation available to aid functional safety system designInput voltage range: 2.7 V to 6 VOutput voltage from 0.6 V to 5.5 V1% feedback voltage accuracy (full temperature range)TJ= –40°C to +150°CFamily of 0.5-A, 1-A, 2-A (continuous), and 3-A (peak) devicesSwitching frequency in PWM: 2.25 MHzExternal synchronization from 1.8 MHz to 4 MHzForced PWM or PWM/PFM operationQuiescent current: 17 µA (typical)Adjustable soft start-up to 10 msPrecise ENABLE input allows:User-defined undervoltage lockoutExact sequencing100% duty cycle modeActive output dischargePower-good output with window comparatorFor device options with selectable compensation, see theTPS628501

Description

The TPS62851x is a family of pin-to-pin 0.5-A, 1-A, 2-A (continuous), and 3-A (peak) high efficiency, easy-to-use, synchronous step-down DC/DC converters. They are based on a peak current mode control topology. Low resistive switches allow up to 2-A continuous output current and 3-A peak current. The switching frequency is internally fixed at 2.25 MHz and can also be synchronized to an external clock in the range from 1.8 MHz to 4 MHz. In PWM/PFM mode, the TPS62851x automatically enters power save mode at light loads to maintain high efficiency across the whole load range. The TPS62851x provide a 1% output voltage accuracy in PWM mode, which helps design a power supply with high output voltage accuracy. The SS/TR pin allows setting the start-up time or tracking the output voltage to an external source, which allows external sequencing of different supply rails and limits the inrush current during start-up. The TPS62851x is available in an 8-pin 1.60-mm × 2.10-mm SOT583 package, offering a high power density solution. The TPS62851x is a family of pin-to-pin 0.5-A, 1-A, 2-A (continuous), and 3-A (peak) high efficiency, easy-to-use, synchronous step-down DC/DC converters. They are based on a peak current mode control topology. Low resistive switches allow up to 2-A continuous output current and 3-A peak current. The switching frequency is internally fixed at 2.25 MHz and can also be synchronized to an external clock in the range from 1.8 MHz to 4 MHz. In PWM/PFM mode, the TPS62851x automatically enters power save mode at light loads to maintain high efficiency across the whole load range. The TPS62851x provide a 1% output voltage accuracy in PWM mode, which helps design a power supply with high output voltage accuracy. The SS/TR pin allows setting the start-up time or tracking the output voltage to an external source, which allows external sequencing of different supply rails and limits the inrush current during start-up. The TPS62851x is available in an 8-pin 1.60-mm × 2.10-mm SOT583 package, offering a high power density solution.