SLVSAI5B September   2010  – June 2016 TPS62290-Q1 , TPS62293-Q1

UNLESS OTHERWISE NOTED, this document contains 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 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Power Save Mode
        1. 8.3.1.1 Dynamic Voltage Positioning
        2. 8.3.1.2 100% Duty Cycle Low Dropout Operation
        3. 8.3.1.3 Undervoltage Lockout
      2. 8.3.2 Enable
      3. 8.3.3 Soft Start
      4. 8.3.4 Short-Circuit Protection
      5. 8.3.5 Thermal Shutdown
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 TPS62290DRV Adjustable 1.8 V
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Output Voltage Setting
          2. 9.2.1.2.2 Output Filter Design (Inductor and Output Capacitor)
            1. 9.2.1.2.2.1 Inductor Selection
            2. 9.2.1.2.2.2 Output Capacitor Selection
            3. 9.2.1.2.2.3 Input Capacitor Selection
        3. 9.2.1.3 Application Curves
      2. 9.2.2 TPS62290DRV Adjustable 3.3 V
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
        3. 9.2.2.3 Application Curves
      3. 9.2.3 TPS62293DRV Fixed 1.8 V
        1. 9.2.3.1 Design Requirements
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Third-Party Products Disclaimer
    2. 12.2 Related Links
    3. 12.3 Receiving Notification of Documentation Updates
    4. 12.4 Community Resource
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • Qualified for Automotive Applications
  • High Efficiency Step-Down Converter
  • Output Current up to 1000 mA
  • VIN Range From 2.3 V to 6 V
  • 2.25-MHz Fixed Frequency Operation
  • Power Save Mode at Light Load Currents
  • Output Voltage Accuracy in PWM mode ±1.5%
  • Fixed Output Voltage Options
  • Typical 15-µA Quiescent Current
  • 100% Duty Cycle for Lowest Dropout
  • Voltage Positioning at Light Loads
  • Available in a 2-mm × 2-mm × 0.8-mm SON Package

2 Applications

  • Automotive Infotainment and Clusters
    • Instrument Clusters
    • Head Units and Displays
    • Radios and Navigation
  • Advanced Driver Assistance System (ADAS)
    • Front Cameras
    • Blind Spot Monitoring
    • Lane Departure Warning
    • Park Assist
  • HEV/EV Onboard Charger

    • SPACE

3 Description

The TPS6229x-Q1 is a highly efficient synchronous step-down buck converter optimized for automotive low input voltage applications, and provides up to 1000-mA output current..

With an input voltage range of 2.3 V to 6 V, and an output voltage accuracy of 1.5%, the device powers a large variety of automotive applications.

The TPS6229x-Q1 operates at 2.25-MHz fixed switching frequency and enters Power Save Mode operation with typical quiescent current of 15 µA at light load currents to maintain a high efficiency over the entire load current range.

The Power Save Mode is optimized for low output voltage ripple. For low noise applications, the device can be forced into fixed frequency PWM mode by pulling the MODE pin high. In the shutdown mode, the current consumption is reduced to less than 1 µA. The TPS6229x-Q1 allows the use of small inductors and capacitors to achieve a small solution size.

The TPS6229x-Q1 is available in a 2-mm × 2-mm
6-pin SON package.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPS6229x-Q1 SON (6) 2.00 mm × 2.00 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Typical Application Schematic

TPS62290-Q1 TPS62293-Q1 typ_sck_lvsai5.gif

Efficiency vs Output Current

TPS62290-Q1 TPS62293-Q1 pwr_save_lvs764.gif