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TPS62042

ACTIVE

1.5-V Output, 1.2-A, 95% Efficient Step-Down Converter, 18uA, MSOP-10

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Data sheet

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TPS628512 ACTIVE 2.7-V to 6-V, 2-A, fixed-frequency, step-down converter in SOT583 package Smaller solution size in SOT583 package

TPS62042

ACTIVE
Data sheet Order now

Product details

Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 1.2 Vin (min) (V) 2.5 Vin (max) (V) 6 Switching frequency (min) (kHz) 1000 Switching frequency (max) (kHz) 1500 Features Enable, Forced PWM, Light Load Efficiency, Light load efficiency, Power good, Synchronous Rectification Control mode Voltage mode Vout (min) (V) 1.5 Vout (max) (V) 1.5 Iq (typ) (µA) 18 Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 1.2 Vin (min) (V) 2.5 Vin (max) (V) 6 Switching frequency (min) (kHz) 1000 Switching frequency (max) (kHz) 1500 Features Enable, Forced PWM, Light Load Efficiency, Light load efficiency, Power good, Synchronous Rectification Control mode Voltage mode Vout (min) (V) 1.5 Vout (max) (V) 1.5 Iq (typ) (µA) 18 Duty cycle (max) (%) 100
HVSSOP (DGQ) 10 14.7 mm² 3 x 4.9 VSON (DRC) 10 9 mm² 3 x 3
  • Up to 95% Conversion Efficiency
  • Typical Quiescent Current: 18 µA
  • Load Current: 1.2 A
  • Operating Input Voltage Range: 2.5 V to 6.0 V
  • Switching Frequency: 1.25 MHz
  • Adjustable and Fixed Output Voltage
  • Power Save Mode Operation at Light load Currents
  • 100% Duty Cycle for Lowest Dropout
  • Internal Softstart
  • Dynamic Output Voltage Positioning
  • Thermal Shutdown
  • Short-Circuit Protection
  • 10 Pin MSOP PowerPad™ Package
  • 10 Pin QFN 3 X 3 mm Package
  • APPLICATIONS
    • PDA, Pocket PC and Smart Phones
    • USB Powered Modems
    • CPUs and DSPs
    • PC Cards and Notebooks
    • xDSL Applications
    • Standard 5-V to 3.3-V Conversion

PowerPAD is a trademark of Texas Instruments.
  • Up to 95% Conversion Efficiency
  • Typical Quiescent Current: 18 µA
  • Load Current: 1.2 A
  • Operating Input Voltage Range: 2.5 V to 6.0 V
  • Switching Frequency: 1.25 MHz
  • Adjustable and Fixed Output Voltage
  • Power Save Mode Operation at Light load Currents
  • 100% Duty Cycle for Lowest Dropout
  • Internal Softstart
  • Dynamic Output Voltage Positioning
  • Thermal Shutdown
  • Short-Circuit Protection
  • 10 Pin MSOP PowerPad™ Package
  • 10 Pin QFN 3 X 3 mm Package
  • APPLICATIONS
    • PDA, Pocket PC and Smart Phones
    • USB Powered Modems
    • CPUs and DSPs
    • PC Cards and Notebooks
    • xDSL Applications
    • Standard 5-V to 3.3-V Conversion

PowerPAD is a trademark of Texas Instruments.

The TPS6204x family of devices are high efficiency synchronous step-down dc-dc converters optimized for battery powered portable applications. The devices are ideal for portable applications powered by a single Li-Ion battery cell or by 3-cell NiMH/NiCd batteries. With an output voltage range from 6.0 V down to 0.7 V, the devices support low voltage DSPs and processors in PDAs, pocket PCs, as well as notebooks and subnotebook computers. The TPS6204x operates at a fixed switching frequency of 1.25 MHz and enters the power save mode operation at light load currents to maintain high efficiency over the entire load current range. For low noise applications, the devices can be forced into fixed frequency PWM mode by pulling the MODE pin high. The TPS6204x supports up to 1.2-A load current.

The TPS6204x family of devices are high efficiency synchronous step-down dc-dc converters optimized for battery powered portable applications. The devices are ideal for portable applications powered by a single Li-Ion battery cell or by 3-cell NiMH/NiCd batteries. With an output voltage range from 6.0 V down to 0.7 V, the devices support low voltage DSPs and processors in PDAs, pocket PCs, as well as notebooks and subnotebook computers. The TPS6204x operates at a fixed switching frequency of 1.25 MHz and enters the power save mode operation at light load currents to maintain high efficiency over the entire load current range. For low noise applications, the devices can be forced into fixed frequency PWM mode by pulling the MODE pin high. The TPS6204x supports up to 1.2-A load current.
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Technical documentation

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Type Title Date
* Data sheet 1.2A / 1.25 MHz. High-Efficiency Step-Down Converter datasheet (Rev. B) 28 Oct 2005
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 06 Dec 2023
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
Application note Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) 29 Nov 2017
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
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

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HVSSOP (DGQ) 10 Ultra Librarian
VSON (DRC) 10 Ultra Librarian
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