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TPS62203-DIE

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3.3-V Output, 300-mA, 95% Efficient Step-Down Converter

Product details

Vin (min) (V) 2.5 Vin (max) (V) 6 Vout (min) (V) 3.3 Vout (max) (V) 3.3 Iout (max) (A) 0.3 Iq (typ) (mA) 0.015 Switching frequency (min) (kHz) 650 Switching frequency (max) (kHz) 1500 Features Enable, Synchronous Rectification Operating temperature range (°C) -40 to 85 Rating Catalog Regulated outputs (#) 1 Control mode Voltage mode Duty cycle (max) (%) 100 Type Converter
Vin (min) (V) 2.5 Vin (max) (V) 6 Vout (min) (V) 3.3 Vout (max) (V) 3.3 Iout (max) (A) 0.3 Iq (typ) (mA) 0.015 Switching frequency (min) (kHz) 650 Switching frequency (max) (kHz) 1500 Features Enable, Synchronous Rectification Operating temperature range (°C) -40 to 85 Rating Catalog Regulated outputs (#) 1 Control mode Voltage mode Duty cycle (max) (%) 100 Type Converter
DIESALE (TD) See data sheet
  • High Efficiency Synchronous Step-Down
    Converter With up to 95% Efficiency
  • 2.5-V to 6-V Input Voltage Range
  • Adjustable Output Voltage Range
  • Fixed Output Voltage Options Available
  • Output Current
  • Fixed Frequency PWM Operation
  • Highest Efficiency Over Wide Load Current Range
    Due to Power Save Mode
  • Quiescent Current
  • Soft Start
  • 100% Duty Cycle Low-Dropout Operation
  • Dynamic Output-Voltage Positioning
  • High Efficiency Synchronous Step-Down
    Converter With up to 95% Efficiency
  • 2.5-V to 6-V Input Voltage Range
  • Adjustable Output Voltage Range
  • Fixed Output Voltage Options Available
  • Output Current
  • Fixed Frequency PWM Operation
  • Highest Efficiency Over Wide Load Current Range
    Due to Power Save Mode
  • Quiescent Current
  • Soft Start
  • 100% Duty Cycle Low-Dropout Operation
  • Dynamic Output-Voltage Positioning

The TPS62203 is a high-efficiency synchronous step-down converter ideally suited for portable systems powered by 1-cell Li-Ion or 3-cell NiMH/NiCd batteries. The device is also suitable to operate at a standard voltage rail.

The device is ideal to power low voltage DSPs and processors used in PDAs, pocket PCs, and smart phones. Under nominal load current, the device operates with a fixed switching frequency. At light load currents, the part enters the power save mode operation and the switching frequency is reduced; therefore, it achieves the highest efficiency over the entire load current range. The TPS62203 needs only three small external components. An advanced fast response voltage mode control scheme achieves superior line and load regulation with small ceramic input and output capacitors.

The TPS62203 is a high-efficiency synchronous step-down converter ideally suited for portable systems powered by 1-cell Li-Ion or 3-cell NiMH/NiCd batteries. The device is also suitable to operate at a standard voltage rail.

The device is ideal to power low voltage DSPs and processors used in PDAs, pocket PCs, and smart phones. Under nominal load current, the device operates with a fixed switching frequency. At light load currents, the part enters the power save mode operation and the switching frequency is reduced; therefore, it achieves the highest efficiency over the entire load current range. The TPS62203 needs only three small external components. 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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Type Title Date
* Data sheet High-Efficiency, SOT23 Step-Down, DC-DC Converter datasheet 16 Aug 2012
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 Dec 2018
Analog Design Journal Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 24 Oct 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

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