SLVS941G April   2009  – August 2016 TPS62230

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Undervoltage Lockout
      2. 8.3.2 Enable and Shutdown
      3. 8.3.3 Thermal Shutdown
    4. 8.4 Device Functional Modes
      1. 8.4.1 Soft-Start
      2. 8.4.2 Power-Save Mode
      3. 8.4.3 Forced PWM Mode
      4. 8.4.4 100% Duty Cycle Low Dropout Operation
      5. 8.4.5 Short Circuit Protection
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Output Filter Design (Inductor and Output Capacitor)
        2. 9.2.2.2 Inductor Selection
        3. 9.2.2.3 Output Capacitor Selection
        4. 9.2.2.4 Input Capacitor Selection
        5. 9.2.2.5 Checking Loop Stability
      3. 9.2.3 Application Curves
        1. 9.2.3.1  VOUT = 1.1 V - TPS622311
        2. 9.2.3.2  VOUT = 1.2 V - TPS62232/TPS62235
        3. 9.2.3.3  VOUT = 1.8 V - TPS62231
        4. 9.2.3.4  VOUT = 1.85 V - TPS62236
        5. 9.2.3.5  VOUT = 2.5 V - TPS62230
        6. 9.2.3.6  VOUT = 3.0 V - TPS62233
        7. 9.2.3.7  Start-Up
        8. 9.2.3.8  PFM / PWM Operation
        9. 9.2.3.9  Peak-to-Peak Output Ripple Voltage
        10. 9.2.3.10 Power-Supply Rejection
        11. 9.2.3.11 Spurious Output Noise
        12. 9.2.3.12 Line Transient Response
        13. 9.2.3.13 Mode Transition
        14. 9.2.3.14 AC-Load Regulation
        15. 9.2.3.15 Load Transient Response
    3. 9.3 System Examples
  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 Resources
    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

  • 2 MHz / 3 MHz Switching Frequency
  • Up to 94% Efficiency
  • Output Peak Current up to 500 mA
  • Operating Junction Temperature of –40°C to 125°C
  • High PSRR (up to 90 dB)
  • Small External Output Filter Components 1 μH and 4.7 μF
  • VIN range from 2.05 V to 6 V
  • Optimized Power-Save Mode for Low Output Ripple Voltage
  • Forced PWM Mode Operation
  • Typ. 22-μA Quiescent Current
  • 100% Duty Cycle for Lowest Dropout
  • Small 1-mm × 1.5-mm × 0.6-mm USON Package
  • 12-mm2 Minimum Solution Size
  • Supports 0.6-mm Maximum Solution Height

2 Applications

  • LDO Replacement
  • Portable Audio, Portable Media
  • Low Power Wireless
  • Low Power DSP Core Supply
  • Digital Cameras

3 Description

The TPS6223x device family is a high-frequency, synchronous, step-down DC – DC converter optimized for battery powered portable applications. It supports up to 500-mA output current and allows the use of tiny and low-cost chip inductors and capacitors.

With a wide input voltage range of 2.05 V to 6 V, the device supports applications powered by Li-Ion batteries with extended voltage range. The minimum input voltage of 2.05 V allows as well the operation from Li-primary or two alkaline batteries. Different fixed output voltage versions are available from 1.0 V to 3.3 V.

The TPS6223x series features switch frequency up to 3.8 MHz. At medium to heavy loads, the converter operates in pulse width modulation (PWM) mode and automatically enters power-save mode operation at light load currents to maintain high efficiency over the entire load current range.

Because of its excellent power supply rejection ratio (PSRR) and AC load regulation performance, the device is also suitable to replace linear regulators to obtain better power conversion efficiency.

The power-save mode in TPS6223x reduces the quiescent current consumption down to 22 μA during light load operation. It is optimized to achieve very low output voltage ripple even with small external component and features excellent AC load regulation.

For very noise-sensitive applications, the device can be forced to PWM mode operation over the entire load range by pulling the MODE pin high. In the shutdown mode, the current consumption is reduced to less than 1 μA. The TPS6223x operates over a junction temperature range of –40°C to 125°C. It is available in a 1 mm × 1.5 mm × 0.6 mm 6-pin SON package.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPS6223xx USON (6) 1.45 mm x 1.00 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Typical Application Schematic

TPS62230 TPS62231 TPS62232 TPS62233 TPS62234 TPS62235 TPS62236 TPS62237 TPS62238 TPS62239 TPS622310 TPS622311 TPS622312 TPS622313 TPS622314 TPS622315 TPS622316 TPS622317 TPS622318 TPS622319 ai_typ2_lvs941.gif

Small PCB Layout Size

TPS62230 TPS62231 TPS62232 TPS62233 TPS62234 TPS62235 TPS62236 TPS62237 TPS62238 TPS62239 TPS622310 TPS622311 TPS622312 TPS622313 TPS622314 TPS622315 TPS622316 TPS622317 TPS622318 TPS622319 pcb_lay_lvs941.gif