TPS62590

ACTIVE

2.25MHz, 1A Step-Down Converter in 2 x 2 SON Package

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Product details

Parameters

Vin (Min) (V) 2.5 Vin (Max) (V) 5.5 Vout (Min) (V) 0.75 Vout (Max) (V) 5.5 Iout (Max) (A) 1 Iq (Typ) (uA) 15 Switching frequency (Min) (kHz) 2000 Switching frequency (Max) (kHz) 2500 Features Enable, Forced PWM, Light Load Efficiency, Synchronous Rectification, UVLO Fixed Operating temperature range (C) -40 to 85 Rating Catalog Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

WSON (DRV) 6 4 mm² 2 x 2 open-in-new Find other Buck converters (integrated switch)

Features

  • Output Current up to 1000 mA
  • Input Voltage Range from 2.5 V to 5.5 V
  • Output Voltage Accuracy in PWM Mode ±2.5%
  • Typical 15-µA Quiescent Current
  • 100% Duty Cycle for Lowest Dropout
  • Available in a 2 mm × 2 mm × 0.8 mm WSON
    Package
  • For Improved Features Set, See the TPS62290
    device (SLVS764)
  • APPLICATIONS
    • Mobile Phones, Smart Phones
    • Tablet PCs
    • WLAN
    • Low Power DSP Supply
    • Point-of-Load (POL) Applications

All other trademarks are the property of their respective owners

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Description

The TPS62590 device is a high-efficiency synchronous step down converter, optimized for battery powered portable applications. The device provides up to 1000-mA output current from batteries, such as single Li-Ion or other common chemistry AA and AAA cells.

With an input voltage range of 2.5 V to 5.5 V, the device is targeted to power a large variety of portable handheld equipment or POL applications.

The TPS62590 family operates at 2.25-MHz fixed switching frequency and enters a power save mode operation at light load currents to maintain a high efficiency over the entire load current range.

The power save mode is optimized for low output voltage ripple. For low noise applications, the device can be forced into fixed frequency pulse width modulation (PWM) mode by pulling the MODE pin high. In the shutdown mode the current consumption is reduced to less than 1 µA. The TPS62590 allows the use of small inductors and capacitors to achieve a small solution size.

The TPS62590 is available in a 2-mm × 2-mm 6-pin WSON package.

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Technical documentation

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Type Title Date
* Data sheet TPS62590 1-A Step Down Converter in 2-mm × 2-mm WSON Package datasheet (Rev. C) Dec. 23, 2015
Application note Methods of output-voltage adjustment for DC/DC converters Jun. 14, 2019
Technical article Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec. 11, 2018
Application note QFN and SON PCB Attachment (Rev. B) Aug. 24, 2018
Application note Understanding 100% mode in low-power DC/DC converters Jun. 22, 2018
Application note Achieving a clean startup by using a DC/DC converter with a precise enable-pin t Oct. 24, 2017
Application note Extending the Soft Start Time Without a Soft Start Pin (Rev. B) Jun. 15, 2017
Application note Testing tips for applying external power to supply outputs without an input volt Oct. 24, 2016
Application note Basic Calculation of a Buck Converter's Power Stage (Rev. B) Aug. 17, 2015
Application note Five steps to a great PCB layout for a step-down converter Jan. 29, 2015
Application note Design considerations for a resistive feedback divider in a DC/DC converter Apr. 26, 2012
Application note Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) Jan. 13, 2012
Application note IQ: What it is, what it isn’t, and how to use it Jun. 17, 2011
User guide TPS62590EVM-454 User's Guide Mar. 06, 2009

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
document-generic User guide
49
Description
The TPS62590EVM-454 evaluation module facilitates evaluation of the TPS62590 1A synchronous step-down DC/DC converter.
Features
  • High Efficiency Step-Down Converter
  • Output Current up to 1000mA
  • Vin Range from 2.5V to 5.5V
  • 2.25MHz Fixed Frequency Operation
  • Power Save Mode at Light Load Currents
  • Output Voltage Accuracy in PWM Mode ±2.5%
  • Typical 15µA Quiescent Current
  • 100% Duty Cycle for Lowest Dropout
  • Voltage Positioning at Light Loads

Design tools & simulation

SIMULATION MODEL Download
SLIM122A.ZIP (37 KB) - PSpice Model
SIMULATION MODEL Download
SLVM237.TSC (129 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SLVM238.ZIP (35 KB) - TINA-TI Spice Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
GERBER FILE Download
SLVC488.ZIP (102 KB)
GERBER FILE Download
SLVC780.ZIP (138 KB)

Reference designs

REFERENCE DESIGNS Download
12-bit, 20-MSPS Data Acquisition Reference Design for Digitizer
TIDA-00942 This reference design enables a cost-effective and low-power data acquisition system that provides an alternative to FPGA-based systems. It features a single-ended, high-impedance input that can be used in a wide number of applications, including portable instrumentation and digitizers.

The reference (...)

document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
WSON (DRV) 6 View options

Ordering & quality

Information included:
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  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

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