TPS62208

ACTIVE

1.875-V Output, 300-mA, 95% Efficient Step-Down Converter in SOT-23

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TPS62A01 ACTIVE 2.5V-to-5.5V input, 1A output high-efficiency step-down converter Higher accuracy and smaller solution size in SOT563 package

Product details

Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 0.3 Vin (min) (V) 2.5 Vin (max) (V) 6 Switching frequency (min) (kHz) 650 Switching frequency (max) (kHz) 1500 Features Enable, Light load efficiency, Synchronous Rectification Control mode Voltage mode Vout (min) (V) 1.875 Vout (max) (V) 1.875 Iq (typ) (µA) 15 Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 0.3 Vin (min) (V) 2.5 Vin (max) (V) 6 Switching frequency (min) (kHz) 650 Switching frequency (max) (kHz) 1500 Features Enable, Light load efficiency, Synchronous Rectification Control mode Voltage mode Vout (min) (V) 1.875 Vout (max) (V) 1.875 Iq (typ) (µA) 15 Duty cycle (max) (%) 100
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • High-Efficiency Synchronous Step-Down
    Converter With up to 95% Efficiency
  • 2.5-V to 6-V Input Voltage Range
  • Adjustable Output Voltage Range From 0.7 V to VI
  • Fixed Output Voltage Options Available
  • Up to 300-mA Output Current
  • 1-MHz Fixed-Frequency PWM Operation
  • Highest Efficiency Over Wide Load Current Range
    Due to Power Save Mode
  • 15-µA Typical Quiescent Current
  • Soft Start
  • 100% Duty Cycle Low-Dropout Operation
  • Dynamic Output-Voltage Positioning
  • Available in a 5-Pin SOT23 Package
  • High-Efficiency Synchronous Step-Down
    Converter With up to 95% Efficiency
  • 2.5-V to 6-V Input Voltage Range
  • Adjustable Output Voltage Range From 0.7 V to VI
  • Fixed Output Voltage Options Available
  • Up to 300-mA Output Current
  • 1-MHz Fixed-Frequency PWM Operation
  • Highest Efficiency Over Wide Load Current Range
    Due to Power Save Mode
  • 15-µA Typical Quiescent Current
  • Soft Start
  • 100% Duty Cycle Low-Dropout Operation
  • Dynamic Output-Voltage Positioning
  • Available in a 5-Pin SOT23 Package

The TPS6220x devices are a family of high-efficiency synchronous step-down converters ideally suited for portable systems powered by 1-cell Li-Ion or 3-cell NiMH/NiCd batteries. The devices are also suitable to operate from a standard 3.3-V or 5-V voltage rail.

With an output voltage range of 6 V down to 0.7 V and up to 300 mA output current, the devices are ideal to power low voltage DSPs and processors used in PDAs, pocket PCs, and smart phones. Under nominal load current, the devices operate with a fixed switching frequency of typically 1 MHz. At light load currents, the part enters the power save mode operation; the switching frequency is reduced and the quiescent current is typically only 15 µA; therefore, it achieves the highest efficiency over the entire load current range. The TPS6220x needs only three small external components. Together with the SOT23 package, a minimum system solution size is achieved. An advanced fast response voltage mode control scheme achieves superior line and load regulation with small ceramic input and output capacitors.

The TPS6220x devices are a family of high-efficiency synchronous step-down converters ideally suited for portable systems powered by 1-cell Li-Ion or 3-cell NiMH/NiCd batteries. The devices are also suitable to operate from a standard 3.3-V or 5-V voltage rail.

With an output voltage range of 6 V down to 0.7 V and up to 300 mA output current, the devices are ideal to power low voltage DSPs and processors used in PDAs, pocket PCs, and smart phones. Under nominal load current, the devices operate with a fixed switching frequency of typically 1 MHz. At light load currents, the part enters the power save mode operation; the switching frequency is reduced and the quiescent current is typically only 15 µA; therefore, it achieves the highest efficiency over the entire load current range. The TPS6220x needs only three small external components. Together with the SOT23 package, a minimum system solution size is achieved. An advanced fast response voltage mode control scheme achieves superior line and load regulation with small ceramic input and output capacitors.

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Technical documentation

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Type Title Date
* Data sheet TPS6220x High-Efficiency, SOT23 Step-Down, DC-DC Converter datasheet (Rev. F) PDF | HTML 30 Jun 2015
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

Design & development

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

Simulation model

TPS62208 TINA-TI Transient Reference Design

SLVM621.TSC (150 KB) - TINA-TI Reference Design
Simulation model

TPS62208 TINA-TI Transient Spice Model

SLVM622.ZIP (65 KB) - TINA-TI Spice Model
Simulation model

TPS62208 Unencrypted PSpice Transient Model Package (Rev. A)

SLVM372A.ZIP (66 KB) - PSpice Model
Package Pins CAD symbols, footprints & 3D models
SOT-23 (DBV) 5 Ultra Librarian

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