SLVS432F September   2002  – June 2015 TPS62050 , TPS62051 , TPS62052 , TPS62054 , TPS62056

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Typical Application Schematic
  5. 5 Revision History
  6. 6 Device Comparison Table
  7. 7 Pin Configuration and Functions
  8. 8 Specifications
    1. 8.1 Absolute Maximum Ratings
    2. 8.2 ESD Ratings
    3. 8.3 Recommended Operating Conditions
    4. 8.4 Thermal Information
    5. 8.5 Electrical Characteristics
    6. 8.6 Typical Characteristics
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 Enable and Overtemperature Protection
      2. 9.3.2 Low-Battery Detector (Standard Version)
      3. 9.3.3 ENABLE / Low-Battery Detector (Enhanced Version) TPS62051 Only
      4. 9.3.4 Undervoltage Lockout
      5. 9.3.5 Power Good Comparator
      6. 9.3.6 Synchronization
    4. 9.4 Device Functional Modes
      1. 9.4.1 Soft-Start
      2. 9.4.2 Constant Frequency Mode Operation (SYNC = HIGH)
      3. 9.4.3 Power-Save Mode Operation (SYNC = LOW)
      4. 9.4.4 100% Duty Cycle Low Dropout Operation
      5. 9.4.5 No Load Operation
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Applications
      1. 10.2.1 Standard Circuit for Adjustable Version
        1. 10.2.1.1 Design Requirements
        2. 10.2.1.2 Detailed Design Procedure
          1. 10.2.1.2.1 Inductor Selection
          2. 10.2.1.2.2 Output Capacitor Selection
          3. 10.2.1.2.3 Input Capacitor Selection
          4. 10.2.1.2.4 Feedforward Capacitor
        3. 10.2.1.3 Application Curves
      2. 10.2.2 Standard Circuit for Fixed Voltage Version
        1. 10.2.2.1 Design Requirements
        2. 10.2.2.2 Detailed Design Procedure
        3. 10.2.2.3 Application Curves
    3. 10.3 System Examples
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Device Support
      1. 13.1.1 Third-Party Products Disclaimer
    2. 13.2 Related Links
    3. 13.3 Community Resource
    4. 13.4 Trademarks
    5. 13.5 Electrostatic Discharge Caution
    6. 13.6 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • DGS|10
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • High-Efficiency Synchronous Step-Down
    Converter With up to 95% Efficiency
  • 12-µA Quiescent Current (Typical)
  • 2.7-V to 10-V Operating Input Voltage Range
  • Adjustable Output Voltage Range: 0.7 V to 6 V
  • Fixed Output Voltage Options Available With
    1.5 V, 1.8 V, and 3.3 V
  • Synchronizable to External Clock: Up to 1.2 MHz
  • High-Efficiency Over a Wide Load Current Range in Power-Save Mode
  • 100% Maximum Duty Cycle for Lowest Dropout
  • Low-Noise Operation in Forced Fixed-
    Frequency PWM Operation Mode
  • Internal Softstart
  • Overtemperature and Overcurrent Protected
  • Available in 10-Pin Micro-Small Outline
    Package MSOP

2 Applications

  • Cellular Phones
  • Organizers, PDAs, and Handheld PCs
  • Low-Power DSP Supplies
  • Digital Cameras and Hard Disks

3 Description

The TPS6205x devices are a family of high-efficiency synchronous step-down DC-DC converters that are ideally suited for systems powered from a 1- or 2-cell Li-Ion battery or from a 3- to 5-cell NiCd, NiMH, or alkaline battery.

The TPS6205x devices are synchronous pulse width modulation (PWM) converters with integrated N- and P-channel power MOSFET switches. Synchronous rectification increases efficiency and reduces external component count. To achieve highest efficiency over a wide load current range, the converter enters a power-saving pulse frequency modulation (PFM) mode at light load currents. Operating frequency is typically 850 kHz, allowing the use of small inductor and capacitor values. The device can be synchronized to an external clock signal in the range of 600 kHz to 1.2 MHz. For low noise operation, the converter can be programmed into forced-fixed frequency in PWM mode. In shutdown mode, the current consumption is reduced to less than 2 µA. The TPS6205x devices are available in the 10-pin (DGS) micro-small outline package (MSOP) and operates over a free air temperature range of –40°C to 85°C.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPS62050 VSSOP (10) 3.00 mm × 3.00 mm
TPS62051
TPS62052
TPS62054
TPS62056
  1. For all available packages, see the orderable addendum at the end of the data sheet.

4 Typical Application Schematic

TPS62050 TPS62051 TPS62052 TPS62054 TPS62056 typ_app_circuit_slvs432.gif

Efficiency vs Output Current

TPS62050 TPS62051 TPS62052 TPS62054 TPS62056 front_graph_slvs432.gif