TPS62221

ACTIVE

1.5-V Output, 400-mA, 95% Efficient Step-Down Converter, 15uA, ThinSOT-23

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Product details

Parameters

Vin (Min) (V) 2.5 Vin (Max) (V) 6 Vout (Min) (V) 1.5 Vout (Max) (V) 1.5 Iout (Max) (A) 0.4 Iq (Typ) (mA) 0.015 Iq (Typ) (uA) 15 Switching frequency (Min) (kHz) 800 Switching frequency (Max) (kHz) 1850 Features Enable, Light Load Efficiency, Synchronous Rectification Operating temperature range (C) -40 to 85 Rating Catalog Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

SOT-23-THN (DDC) 5 8 mm² 2.9 x 2.8 open-in-new Find other Buck converters (integrated switch)

Features

  • 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 400-mA Output Current
  • 1.25-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 TSOT23 Package
  • APPLICATIONS
    • PDAs and Pocket PC
    • Cellular Phones, Smart Phones
    • OMAP™ and Low Power DSP Supply
    • Digital Cameras
    • Portable Media Players
    • Portable Equipment
    • WLAN PC Cards

OMAP, TMS320 are trademarks of Texas Instruments.

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Description

The TPS6222x 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 400-mA output current, the devices are ideal for powering the low voltage TMS320 DSP family and processors used in PDAs, pocket PCs, and smart phones. Under nominal load current, the devices operate with a fixed switching frequency of typically 1.25 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, the device achieves the highest efficiency over the entire load current range. The TPS6222x needs only three small external components. Together with the tiny TSOT23 package, a minimum system solution size can be 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

Design & development

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

Hardware development

EVALUATION BOARDS Download
TPS62220 Evaluation Module
TPS62220EVM-014
document-generic User guide
49
Description

The TPS62220EVM-014 is an evaluation tool for the TPS62220 400-mA inductive step-down converter in ThinSOT-23 which can supply voltages down to 0.7V from a 2.5-V to 6-V input. The TPS62220EVM-014 uses a TPS62220 adjustable output step-down converter and the appropriate feedback components to provide (...)

EVALUATION BOARDS Download
TPS62221 Evaluation Module
TPS62221EVM-014
document-generic User guide
49
Description

The TPS62221EVM-014 is an evaluation tool for the TPS62221, 400-mA inductive step-down converter in ThinSOT-23 which can supply a fixed output voltage of 1.5V from a 2.5-V to 6-V input. The TPS62221EVM-014 uses a TPS62221 fixed output voltage step-down converter to provide a 1.5-V output voltage (...)

Design tools & simulation

SIMULATION TOOLS 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
  • (...)

CAD/CAE symbols

Package Pins Download
SOT-23-THIN (DDC) 5 View options

Ordering & quality

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