SLVSDF8B December   2016  – July 2017 TPSM84A22

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Simplified Schematic
      2.      Transient Response
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin 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 Switching Characteristics
    7. 6.7 Package Specifications
    8. 6.8 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  Adjusting the Output Voltage (VADJ)
      2. 7.3.2  Input and Output Capacitance
      3. 7.3.3  Transient Response
        1. 7.3.3.1 Transient Response Waveforms
      4. 7.3.4  Oscillator Frequency
      5. 7.3.5  External Clock Syncronization
      6. 7.3.6  Soft Start
      7. 7.3.7  Power Good (PGOOD)
      8. 7.3.8  Gate Driver (VG)
      9. 7.3.9  Startup into Pre-biased Outputs
      10. 7.3.10 Thermal Shutdown
      11. 7.3.11 Overcurrent Protection
      12. 7.3.12 Output Undervoltage/Overvoltage Protection
      13. 7.3.13 Enable (EN)
      14. 7.3.14 Undervoltage Lockout (UVLO)
    4. 7.4 Device Functional Modes
      1. 7.4.1 Active Mode
      2. 7.4.2 Light Load Operation
      3. 7.4.3 Shutdown Mode
  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 Setting the Output Voltage
        2. 8.2.2.2 Input and Output Capacitance
        3. 8.2.2.3 Power Good (PGOOD)
        4. 8.2.2.4 External VG Voltage
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Examples
    3. 10.3 EMI
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Receiving Notification of Documentation Updates
    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. 12.1 Tape and Reel Information

Package Options

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

6.8 Typical Characteristics

The electrical characteristic data has been developed from actual products tested at 25°C. This data is considered typical for the converter. Applies to Figure 1, Figure 2, Figure 3, Figure 4 and Figure 11.

The temperature derating curves represent the conditions at which internal components are at or below the manufacturer's maximum operating temperatures. Derating limits apply to devices soldered directly to a 50 mm × 100 mm double-sided PCB with 2 oz. copper. Applies to Figure 5 and Figure 6.

TPSM84A22 Eff12VZoom.gif
VIN = 12V VG = open
Figure 1. Efficiency
TPSM84A22 Pdiss12V.gif
VIN = 12V VG = open
Figure 3. Power Dissipation
TPSM84A22 SOA12V1_2VB.gif
VIN = 12V VOUT = 1.2V
Figure 5. Safe Operating Area
TPSM84A22 startup.gif
VIN = 12V VOUT = 1.8V IOUT = 1A
Figure 7. VIN Start-up Waveforms
TPSM84A22 ENon.gif
VIN = 12V VOUT = 1.8V IOUT = 1A
Figure 9. EN Start-up Waveforms
TPSM84A22 D001_SLVSDF8.gifFigure 11. Minimum Input Voltage
TPSM84A22 EffVGZoom.gif
VIN = 12V VG = 5V
Figure 2. Efficiency
TPSM84A22 Ripple12V.gif
VIN = 12V
Figure 4. Output Voltage Ripple
TPSM84A22 SOA12V1_8V.gif
VIN = 12V VOUT = 1.8V
Figure 6. Safe Operating Area
TPSM84A22 shutdown3.gif
VIN = 12V VOUT = 1.8V IOUT = 1A
Figure 8. VIN Shut-down Waveforms
TPSM84A22 ENoff2.gif
VIN = 12V VOUT = 1.8V IOUT = 1A
Figure 10. EN Shut-down Waveforms