SLVS417F March   2002  – June 2015 TPS62200 , TPS62201 , TPS62202 , TPS62203 , TPS62204 , TPS62205 , TPS62207 , TPS62208

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Undervoltage Lockout
      2. 7.3.2 Dynamic Voltage Positioning
      3. 7.3.3 Soft Start
      4. 7.3.4 Low Dropout Operation 100% Duty Cycle
      5. 7.3.5 Enable
    4. 7.4 Device Functional Modes
      1. 7.4.1 Power Save Mode Operation
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Adjustable Output Voltage Version
        2. 8.2.2.2 Inductor Selection
        3. 8.2.2.3 Input Capacitor Selection
        4. 8.2.2.4 Output Capacitor Selection
      3. 8.2.3 Application Curves
    3. 8.3 System Examples
      1. 8.3.1 Various Output Voltages
      2. 8.3.2 Adjustable Output Voltage Version Set to 1.5 V
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
    2. 11.2 Related Links
    3. 11.3 Community Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

1 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 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

2 Applications

  • PDAs and Pocket PCs
  • Cellular Phones and Smart Phones
  • Low Power DSP Supplies
  • Digital Cameras
  • Portable Media Players
  • Portable Equipment

3 Description

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.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPS6220x SOT-23 (5) 2.90 mm × 1.60 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Typical Application Schematic

TPS62200 TPS62201 TPS62202 TPS62203 TPS62204 TPS62205 TPS62207 TPS62208 ta_output_lvs417.gif
(Fixed Output Voltage Version)

Efficiency vs Load Current

TPS62200 TPS62201 TPS62202 TPS62203 TPS62204 TPS62205 TPS62207 TPS62208 eff_v_il_lvs417.gif