SLVS651B May   2006  – December 2015 TPS62510

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 Output Voltage Tracking (OVT)
      2. 7.3.2 Power Good
      3. 7.3.3 Undervoltage Lockout
      4. 7.3.4 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Soft Start
      2. 7.4.2 100% Duty Cycle Low Dropout Operation
      3. 7.4.3 Power Save Mode Operation (MODE)
      4. 7.4.4 Power Save Mode Transition Thresholds
      5. 7.4.5 Short-Circuit Protection
  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 Input Capacitor Selection
        2. 8.2.2.2 Output Filter Design (Inductor and Output Capacitor)
        3. 8.2.2.3 Setting the Output Voltage Using the Feedback Resistor Divider
        4. 8.2.2.4 Inductor Selection
      3. 8.2.3 Application Curves
    3. 8.3 System Example
  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 Community Resources
    2. 11.2 Trademarks
    3. 11.3 Electrostatic Discharge Caution
    4. 11.4 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

1 Features

  • 1.8-V to 3.8-V Input Voltage Range
  • Up to 96% High Efficiency Synchronous Step-Down Converter
  • 1.5-MHz Fixed Frequency PWM Operation
  • 1% Output Voltage Accuracy in Fixed Frequency PWM Mode
  • Power Save Mode Operation for High Efficiency Over the Entire Load Current Range
  • 22-μA Quiescent Current
  • Adjustable Output Voltage
  • Output Voltage Tracking (OVT) for Reliable Sequencing
  • Available in a 3-mm × 3-mm 10-Pin VSON Package

2 Applications

  • Portable Devices (Mobile Phone, Smartphone)
  • 2-Cell NiMHd/Alkaline Applications
  • Hard Disc Drives
  • Point-of-Load Regulation
  • Notebook Computers
  • WiMAX and WLAN Applications

3 Description

The TPS62510 is a high-efficiency step-down converter targeted for operation from a 1.8-V to 3.8-V input voltage rail, ideally suited for 2-cell alkaline or NiMHd applications. The TPS62510 is also ideal as a point-of-load regulator running from a fixed 3.3-V, 2.5-V, or 1.8-V input voltage rail.

The converter operates in fixed frequency pulse width modulation (PWM) mode switching at 1.5 MHz with the MODE pin high. Pulling the MODE pin low enables the high efficiency mode. In high efficiency mode, the device operates with a 1.5-MHz fixed frequency PWM at nominal load current, and automatically enters the power save mode at light load currents. For maximum system reliability, the converter features output voltage tracking using the OVT pin to allow sequencing, and to allow for the output voltage to track an external voltage applied to this pin.

The TPS62510 is available in a 3-mm × 3-mm 10-pin VSON package.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPS62510 VSON (10) 3.00 mm × 3.00 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Typical Application Schematic

TPS62510 cir_fp_lvs651.gif

Efficiency vs Load Current

TPS62510 eff_v_il_fp_lvs651.gif