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TPS62561

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2.25MHz 600mA Step-Down Converter in TSOT23 Package

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Data sheet

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TLV62568A ACTIVE 2.5V-5.5V input, 1A high efficiency step-down buck converter with forced PWM in small SOT563 package Smaller SOT563 package, pin-pin compatible family 1A, 2A

TPS62561

ACTIVE
Data sheet Order now

Product details

Rating Catalog Topology Buck Iout (max) (A) 0.6 Vin (max) (V) 5.5 Vin (min) (V) 2.5 Vout (max) (V) 5.5 Vout (min) (V) 0.85 Features Adaptive/Dynamic Voltage Scaling, Enable, Forced PWM, Light load efficiency, Synchronous Rectification Control mode Voltage mode Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.000015 Duty cycle (max) (%) 100
Rating Catalog Topology Buck Iout (max) (A) 0.6 Vin (max) (V) 5.5 Vin (min) (V) 2.5 Vout (max) (V) 5.5 Vout (min) (V) 0.85 Features Adaptive/Dynamic Voltage Scaling, Enable, Forced PWM, Light load efficiency, Synchronous Rectification Control mode Voltage mode Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.000015 Duty cycle (max) (%) 100
SOT-23-THN (DDC) 5 8.12 mm² 2.9 x 2.8
  • Output Current up to 600 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
  • Soft Start
  • Available in a Small SOT, and 2 mm × 2 mm × 0.8 mm SON Package
  • For Improved Features Set, See the TPS62290 device (SLVS764)
  • Output Current up to 600 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
  • Soft Start
  • Available in a Small SOT, and 2 mm × 2 mm × 0.8 mm SON Package
  • For Improved Features Set, See the TPS62290 device (SLVS764)

The TPS62560 device is a high efficiency synchronous step down converter, optimized for battery powered portable applications. It provides up to 600-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 TPS62560 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 PWM mode by pulling the MODE pin high. In the shutdown mode the current consumption is reduced to less than 1 µA. The TPS62560 allows the use of small inductors and capacitors to achieve a small solution size.

TPS62560 and TPS62562 are available in a 2-mm × 2-mm, 6-pin SON package, whereas the TPS62561 is available in a 5-pin SOT package.

The TPS62560 device is a high efficiency synchronous step down converter, optimized for battery powered portable applications. It provides up to 600-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 TPS62560 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 PWM mode by pulling the MODE pin high. In the shutdown mode the current consumption is reduced to less than 1 µA. The TPS62560 allows the use of small inductors and capacitors to achieve a small solution size.

TPS62560 and TPS62562 are available in a 2-mm × 2-mm, 6-pin SON package, whereas the TPS62561 is available in a 5-pin SOT package.
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Technical documentation

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* Data sheet TPS6256x 2.25-MHz, 600-mA Step-Down Converter in TSOT and 2 × 2 × 0.8-mm QFN Package datasheet (Rev. D) PDF | HTML 18 Jan 2013
Analog Design Journal Methods of output-voltage adjustment for DC/DC converters 14 Jun 2019
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 Dec 2018
Analog Design Journal Understanding 100% mode in low-power DC/DC converters 22 Jun 2018
Analog Design Journal Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 24 Oct 2017
Application note Extending the Soft Start Time Without a Soft Start Pin (Rev. B) 15 Jun 2017
Analog Design Journal Testing tips for applying external power to supply outputs without an input voltage 24 Oct 2016
Application note Basic Calculation of a Buck Converter's Power Stage (Rev. B) 17 Aug 2015
Analog Design Journal Five steps to a great PCB layout for a step-down converter 29 Jan 2015
Analog Design Journal Design considerations for a resistive feedback divider in a DC/DC converter 26 Apr 2012
Application note Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) 13 Jan 2012
Analog Design Journal IQ: What it is, what it isn’t, and how to use it 17 Jun 2011

Design & development

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

Evaluation board

TPS62560EVM-330 — TPS62560 Evaluation Module

The TPS62560EVM-330 evaluation module (EVM) helps designers evaluate the operation andperformance of the TPS62560 DC/DC converter. This converter is a 2.25-MHz, synchronous, step-down converter capable of 600 mA of output current. The user’s guide describes the characteristics, operation, and use (...)

User guide: PDF
Not available on TI.com
Simulation model

TPS62561 PSpice Transient Model

SLIM120.ZIP (44 KB) - PSpice Model
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Simulation model

TPS62561 TINA-TI Transient Reference Design

SLVM241.TSC (119 KB) - TINA-TI Reference Design
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Simulation model

TPS62561 TINA-TI Transient Spice Model

SLVM242.ZIP (26 KB) - TINA-TI Spice Model
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Calculation tool

SLVC780 — Design Tool for Output Voltage Adjustment Using a DAC

Calculator tool to adjust the power supply's output voltage with an analog input voltage
Supported products & hardware

Supported products & hardware
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Package Pins CAD symbols, footprints & 3D models
SOT-23-THN (DDC) 5 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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