TPS628503 Series

2.7-V to 6-V, 3-A, adjustable-frequency, step-down converter in SOT-583 package

Catalog

2.7-V to 6-V, 3-A, adjustable-frequency, step-down converter in SOT-583 package

Part	Current - Output	Mounting Type	Function	Operating Temperature [Max]	Operating Temperature [Min]	Synchronous Rectifier	Package / Case	Voltage - Output (Max) [Max]	Output Type	Number of Outputs	Frequency - Switching [Max]	Frequency - Switching [Min]	Voltage - Output (Min/Fixed)	Supplier Device Package	Voltage - Input (Max) [Max]	Voltage - Input (Min) [Min]	Topology	Output Configuration
Texas Instruments TPS628503DRLR	3 A	Surface Mount	Step-Down	150 °C	-40 °C		SOT-583	5.5 V	Adjustable	1	4 MHz	1.8 MHz	0.6 V	SOT-583	6 V	2.7 V	Buck	Positive

Catalog

2.7-V to 6-V, 3-A, adjustable-frequency, step-down converter in SOT-583 package

Key Features

• Functional Safety-CapableDocumentation available to aid functional safety system designInput voltage range: 2.7V to 6VOutput voltage from 0.6V to 5.5V1% feedback voltage accuracy (full temperature range)TJ = –40°C to +150°CFamily of 1A, 2A (continuous), and 3A (peak) devicesAdjustable switching frequency and sync of 1.8MHz to 4MHzForced PWM or PWM and PFM operationQuiescent current 17µA (typical)Precise ENABLE input allows:User-defined undervoltage lockoutExact sequencing100% duty cycle modeActive output dischargePower-good output with window comparatorFor device options with adjustable soft start, see theTPS628511Functional Safety-CapableDocumentation available to aid functional safety system designInput voltage range: 2.7V to 6VOutput voltage from 0.6V to 5.5V1% feedback voltage accuracy (full temperature range)TJ = –40°C to +150°CFamily of 1A, 2A (continuous), and 3A (peak) devicesAdjustable switching frequency and sync of 1.8MHz to 4MHzForced PWM or PWM and PFM operationQuiescent current 17µA (typical)Precise ENABLE input allows:User-defined undervoltage lockoutExact sequencing100% duty cycle modeActive output dischargePower-good output with window comparatorFor device options with adjustable soft start, see theTPS628511

Description

The TPS62850x is a family of pin-to-pin 1A, 2A (continuous), and 3A (peak) high efficiency, easy-to-use synchronous step-down DC/DC converters. The devices are based on a peak current mode control topology. Low resistive switches allow up to 2A continuous output current and 3A peak current. The switching frequency is externally adjustable from 1.8MHz to 4MHz and can also be synchronized to an external clock in the same frequency range. In PWM and PFM mode, the TPS62850x automatically enters power save mode at light loads to maintain high efficiency across the whole load range. The TPS62850x provides a 1% output voltage accuracy in PWM mode, which helps design a power supply with high output voltage accuracy, fulfilling tight supply voltage requirements of digital processors and FPGA. The TPS62850x is available in an 8-pin 1.60mm × 2.10mm SOT583 package. The TPS62850x is a family of pin-to-pin 1A, 2A (continuous), and 3A (peak) high efficiency, easy-to-use synchronous step-down DC/DC converters. The devices are based on a peak current mode control topology. Low resistive switches allow up to 2A continuous output current and 3A peak current. The switching frequency is externally adjustable from 1.8MHz to 4MHz and can also be synchronized to an external clock in the same frequency range. In PWM and PFM mode, the TPS62850x automatically enters power save mode at light loads to maintain high efficiency across the whole load range. The TPS62850x provides a 1% output voltage accuracy in PWM mode, which helps design a power supply with high output voltage accuracy, fulfilling tight supply voltage requirements of digital processors and FPGA. The TPS62850x is available in an 8-pin 1.60mm × 2.10mm SOT583 package.