TPS628503

ACTIVE

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

Product details

Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 2.7 Vin (max) (V) 6 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, Pre-Bias Start-Up, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO adjustable EMI features Spread Spectrum Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 5.5 Iq (typ) (µA) 17 Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 2.7 Vin (max) (V) 6 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, Pre-Bias Start-Up, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO adjustable EMI features Spread Spectrum Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 5.5 Iq (typ) (µA) 17 Duty cycle (max) (%) 100
SOT-5X3 (DRL) 8 3.36 mm² 2.1 x 1.6
  • Functional Safety-Capable
  • Input voltage range: 2.7V to 6V
  • Output voltage from 0.6V to 5.5V
  • 1% feedback voltage accuracy (full temperature range)
  • TJ = –40°C to +150°C
  • Family of 1A, 2A (continuous), and 3A (peak) devices
  • Adjustable switching frequency and sync of 1.8MHz to 4MHz
  • Forced PWM or PWM and PFM operation
  • Quiescent current 17µA (typical)
  • Precise ENABLE input allows:
    • User-defined undervoltage lockout
    • Exact sequencing
  • 100% duty cycle mode
  • Active output discharge
  • Power-good output with window comparator
  • For device options with adjustable soft start, see the TPS628511
  • Functional Safety-Capable
  • Input voltage range: 2.7V to 6V
  • Output voltage from 0.6V to 5.5V
  • 1% feedback voltage accuracy (full temperature range)
  • TJ = –40°C to +150°C
  • Family of 1A, 2A (continuous), and 3A (peak) devices
  • Adjustable switching frequency and sync of 1.8MHz to 4MHz
  • Forced PWM or PWM and PFM operation
  • Quiescent current 17µA (typical)
  • Precise ENABLE input allows:
    • User-defined undervoltage lockout
    • Exact sequencing
  • 100% duty cycle mode
  • Active output discharge
  • Power-good output with window comparator
  • For device options with adjustable soft start, see the TPS628511

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.

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Technical documentation

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* Data sheet TPS62850x 2.7V to 6V, 1A / 2A / 3A Step-Down Converter in SOT583 Package datasheet (Rev. B) PDF | HTML 08 Apr 2024
Application note How to Measure Impedance of a Power Distribution Network of a DC-DC Converter PDF | HTML 20 Jan 2022
Application note Loop Gain Reconstruction of a Step-Down Converter from Output Impedance PDF | HTML 20 Jan 2022

Design & development

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Evaluation board

TPS628502EVM-092 — 2.7 -V to 6-V, 2-A automotive step-down converter in SOT583 package evaluation module

The TPS628502EVM-092 evaluation module is designed to evaluate the TPS6285X-Q1 devices. The TPS6285X-Q1 devices are high-frequency, synchronous, step-down converters optimized for a small solution size and high-efficiency. The devices focus on high-efficiency, step-down conversion over a wide (...)

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SOT-5X3 (DRL) 8 Ultra Librarian

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