JAJSJL4B August   2020  – March 2021 TPS62912 , TPS62913

PRODUCTION DATA  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
  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  Smart Config (S-CONF)
      2. 7.3.2  Device Enable (EN/SYNC)
      3. 7.3.3  Device Synchronization (EN/SYNC)
      4. 7.3.4  Spread Spectrum Modulation
      5. 7.3.5  Output Discharge
      6. 7.3.6  Undervoltage Lockout (UVLO)
      7. 7.3.7  Power-Good Output
      8. 7.3.8  Noise Reduction and Soft-Start Capacitor (NR/SS)
      9. 7.3.9  Current Limit and Short Circuit Protection
      10. 7.3.10 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Fixed Frequency Pulse Width Modulation
      2. 7.4.2 Low Duty Cycle Operation
      3. 7.4.3 High Duty Cycle Operation (100% Duty Cycle)
      4. 7.4.4 Second Stage L-C Filter Compensation (Optional)
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Custom Design With WEBENCH® Tools
        2. 8.2.2.2 External Component Selection
          1. 8.2.2.2.1 Switching Frequency Selection
          2. 8.2.2.2.2 Inductor Selection for the First L-C Filter
          3. 8.2.2.2.3 Output Capacitor Selection
          4. 8.2.2.2.4 Ferrite Bead Selection for Second L-C Filter
          5. 8.2.2.2.5 Input Capacitor Selection
          6. 8.2.2.2.6 Setting the Output Voltage
          7. 8.2.2.2.7 NR/SS Capacitor Selection
      3. 8.2.3 Application Curves
  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 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
      2. 11.1.2 Development Support
        1. 11.1.2.1 Custom Design With WEBENCH® Tools
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 サポート・リソース
    4. 11.4 Trademarks
    5. 11.5 静電気放電に関する注意事項
    6. 11.6 用語集
  12. 12Mechanical, Packaging, and Orderable Information

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

6.6 Typical Characteristics

VIN = 12 V, VOUT = 1.2 V, TA = 25°C, BOM = Table 8-1, (unless otherwise noted)

 
12 V to 1.2 V, 1 A 2.2 μH, 1 MHz First L-C Only
Figure 6-1 VOUT Ripple After the First L-C Filter
GUID-20200803-CA0I-62QB-Q3B0-FVBZSD9DSRLC-low.gif
 
12 V to 1.2 V, 1 A 2.2 μH, 1 MHz First and second L-C
Figure 6-3 VOUT Ripple After the Second L-C Filter
GUID-20200803-CA0I-1DMT-Q044-WGSKGCM3JCL0-low.gif
12 V to 1.2 V, 1 A2.2 μH, 1 MHzFirst L-C Only
With Random Spread Spectrum Enabled
Figure 6-5 VOUT Ripple After the First L-C Filter
12 V to 1.8 V, 1 A 2.2 μH, 1 MHz First L-C Only
  
Figure 6-7 VOUT Ripple After the First L-C Filter
GUID-20200803-CA0I-6MRS-PFW3-KVWGCWJQZHGZ-low.gif
12 V to 1.8 V, 1 A 2.2 μH, 1 MHz First and second L-C
 
Figure 6-9 VOUT Ripple After the Second L-C Filter
12 V to 3.3 V, 1 A 2.2 μH, 2.2 MHz First L-C Only
 
Figure 6-11 VOUT Ripple After the First L-C Filter
12 V to 3.3 V, 1 A 2.2 μH, 2.2 MHz First and second L-C
 
Figure 6-13 VOUT Ripple After the Second L-C Filter
5 V to 1.2 V, 1 A 2.2 μH, 2.2 MHz First L-C Only
 
Figure 6-15 VOUT Ripple After the First L-C Filter
GUID-20200804-CA0I-FFNX-FRZR-8Q9T8XXXMRNK-low.gif
5 V to 1.2 V, 1 A 2.2 μH, 2.2 MHz First and second L-C
 
Figure 6-17 VOUT Ripple after the Second L-C Filter
5 V to 1.8 V, 1 A 2.2 μH, 2.2 MHz First L-C Only
 
Figure 6-19 VOUT Ripple After the First L-C Filter
5 V to 1.8 V, 1 A 2.2 μH, 2.2 MHz First and second L-C
 
Figure 6-21 VOUT Ripple After the Second L-C Filter
GUID-20200804-CA0I-KTWQ-TJQP-X36QFD1W8KSV-low.gif
5 V to 3.3 V, 1 A 2.2 μH, 2.2 MHz First L-C Only
 
Figure 6-23 VOUT Ripple After the First L-C Filter
5 V to 3.3 V, 1 A 2.2 μH, 2.2 MHz First and second L-C
 
Figure 6-25 VOUT Ripple After the Second L-C Filter
GUID-20210317-CA0I-9MTH-R4SR-BB6MVTFFPFWB-low.gif
6 V to 1.2 V, 1 A 2.2 μH, 1 MHz BW = 50 Hz
S-CONF = OFF, Triangular, Random
Figure 6-27 Spread Spectrum FFT - 50-Hz BW
12 V to 1.2 V 2.2 μH, 1 MHz First L-C Only
NR/SS = Open, 100 nF, 470 nF, 2.2 μF, BW = 100 Hz to 100 kHz
Figure 6-29 Output Noise Density vs Frequency
12 V to 1.2 V 2.2 μH, 1 MHz First L-C Only
NR/SS = 470 nF, CFF = Open, 100 nF, 1 μF, BW = 100 Hz to 100 kHz
Figure 6-31 Output Noise Density vs Frequency
12 V to 1.8 V 2.2 μH, 1 MHz First L-C Only
NR/SS = Open, 100 nF, 470 nF, 2.2 μF, BW = 100 Hz to 100 kHz
Figure 6-33 Output Noise Density vs Frequency
GUID-20210129-CA0I-LRZM-LPHW-M8PRJCJNJXQW-low.gif
12 V to 1.8 V 2.2 μH, 1 MHz First L-C Only
NR/SS = 470 nF, CFF = Open, 100 nF, 1 μF, BW = 100 Hz to 100 kHz
Figure 6-35 Output Noise Density vs Frequency
12 V to 3.3 V 2.2 μH, 2.2 MHz First L-C Only
NR/SS = Open, 100 nF, 470 nF, 2.2 μF, BW = 100 Hz to 100 kHz
Figure 6-37 Output Noise Density vs Frequency
GUID-20210129-CA0I-M3C8-M6SQ-DTNGGCFXBJFD-low.gif
12 V to 3.3 V 2.2 μH, 2.2 MHz First L-C Only
NR/SS = 470 nF, CFF = Open, 100 nF, 1 μF, BW = 100 Hz to 100 kHz
Figure 6-39 Output Noise Density vs Frequency
5 V to 1.2 V 2.2 μH, 2.2 MHz First L-C Only
NR/SS = Open, 100 nF, 470 nF, 2.2 μF, BW = 100 Hz to 100 kHz
Figure 6-41 Output Noise Density vs Frequency
5 V to 3.3 V 2.2 μH, 2.2 MHz First L-C Only
NR/SS = Open, 100 nF, 470 nF, 2.2 μF, BW = 100 Hz to 100 kHz
Figure 6-43 Output Noise Density vs Frequency
GUID-20201201-CA0I-9PCD-9T7S-1TT0FT40NG2P-low.gif
12 V to 1.2 V2.2 μH, 1 MHz1 A, 2 A, 3 A
First L-C Only, No Ferrite Bead
Figure 6-45 PSRR vs Frequency
12 V to 1.8 V2.2 μH, 1 MHz1 A, 2 A, 3 A
First L-C Only, No Ferrite Bead
Figure 6-47 PSRR vs Frequency
GUID-20200707-SS0I-LFDN-12MC-9DLG1FQ5NGWQ-low.gif
VIN = 5 V
Figure 6-49 High-Side RDS(ON) vs Junction Temperature
1 MHz, 2 A
Figure 6-51 FB Pin Voltage Error vs Input Voltage
GUID-20200714-CA0I-8WNQ-C4TS-R7MXNKSPVXN4-low.gif
12 VIN to 0.8 VOUT1 MHz
Figure 6-53 Output Voltage Error vs Load
GUID-20200707-SS0I-23VL-BKV3-65VKD7CP1MHL-low.gif
12 VIN2.2 MHz
Figure 6-55 Oscillator Frequency vs Temperature
VIN: 12 V25°C
Figure 6-57 Output Discharge Resistance vs Output Voltage
GUID-20200804-CA0I-SKWG-PDCF-2X5PW1L03ZLZ-low.gif
BW = 10 kHz
12 V to 1.2 V, 1 A 2.2 μH, 1 MHz First L-C Only
Figure 6-2 VOUT Ripple FFT After the First L-C Filter
BW = 10 kHz
12 V to 1.2 V, 1 A 2.2 μH, 1 MHz First and second L-C
Figure 6-4 VOUT Ripple FFT After the Second L-C Filter
12 V to 1.2 V, 1 A 2.2 μH, 1 MHz First and second L-C
With Random Spread Spectrum Enabled
Figure 6-6 VOUT Ripple After the Second L-C Filter
GUID-20200805-CA0I-VP2V-3CPQ-MN3ZW3K0K4VG-low.gif
  BW = 10 kHz
12 V to 1.8 V, 1 A 2.2 μH, 1 MHz First L-C Only
Figure 6-8 VOUT Ripple FFT After the First L-C Filter
GUID-20200805-CA0I-VLMX-M4DC-X0LLTZCTWJC2-low.gif
BW = 10 kHz
12 V to 1.8 V, 1 A 2.2 μH, 1 MHz First and second L-C
Figure 6-10 VOUT Ripple FFT After the Second L-C Filter
GUID-20200804-CA0I-KPT1-BXGG-FZHNG23GPZTD-low.gif
BW = 10 kHz
12 V to 3.3 V, 1 A 2.2 μH, 2.2 MHz First L-C Only
Figure 6-12 VOUT Ripple FFT After the First L-C Filter
GUID-20200804-CA0I-DGJL-RW1S-PR1CPHG68X7T-low.gif
BW = 10 kHz
12 V to 3.3 V, 1 A 2.2 μH, 2.2 MHz First and second L-C
Figure 6-14 VOUT Ripple FFT After the Second L-C Filter
BW = 10 kHz
5 V to 1.2 V, 1 A 2.2 μH, 2.2 MHz First L-C Only
Figure 6-16 VOUT Ripple FFT After the First L-C Filter
BW = 10 kHz
5 V to 1.2 V, 1 A 2.2 μH, 2.2 MHz First and second L-C
Figure 6-18 VOUT Ripple FFT After the Second L-C Filter
GUID-20200804-CA0I-WPFZ-3W79-V22NPPFN5VS2-low.gif
BW = 10 kHz
5 V to 1.8 V, 1 A 2.2 μH, 2.2 MHz First L-C Only
Figure 6-20 VOUT Ripple FFT After the First L-C Filter
GUID-20200804-CA0I-TCGS-JFVN-N0XKH2CX0L8T-low.gif
BW = 10 kHz
5 V to 1.8 V, 1 A 2.2 μH, 2.2 MHz First and second L-C
Figure 6-22 VOUT Ripple FFT After the Second L-C Filter
BW = 10 kHz
5 V to 3.3 V, 1 A 2.2 μH, 2.2 MHz First L-C Only
Figure 6-24 VOUT Ripple FFT After the First L-C Filter
GUID-20200804-CA0I-TRGP-HXPT-3LTR1VSWRJVP-low.gif
BW = 10 kHz
5 V to 3.3 V, 1 A 2.2 μH, 2.2 MHz First and second L-C
Figure 6-26 VOUT Ripple FFT After the Second L-C Filter
12 V to 1.2 V, 2 A 2.2 μH, 1 MHz BW = 10 kHz
 S-CONF = OFF, Triangular, Random
Figure 6-28 Spread Spectrum FFT - 10-kH BW
12 V to 1.2 V 2.2 μH, 1 MHz After ferrite bead filter
NR/SS = Open, 100 nF, 470 nF, 2.2 μF, BW = 100 Hz to 100 kHz
Figure 6-30 Output Noise Density vs Frequency
GUID-20210129-CA0I-WNML-FDK6-4CZSTJZXRQD4-low.gif
12 V to 1.2 V 2.2 μH, 1 MHz After ferrite bead filter
NR/SS = 470 nF, CFF = Open, 100 nF, 1 μF, BW = 100 Hz to 100 kHz
Figure 6-32 Output Noise Density vs Frequency
12 V to 1.8 V 2.2 μH, 1 MHz After ferrite bead filter
NR/SS = Open, 100 nF, 470 nF, 2.2 μF, BW = 100 Hz to 100 kHz
Figure 6-34 Output Noise Density vs Frequency
12 V to 1.8 V 2.2 μH, 1 MHz After ferrite bead filter
NR/SS = 470 nF, CFF = Open, 100 nF, 1 μF, BW = 100 Hz to 100 kHz
Figure 6-36 Output Noise Density vs Frequency
GUID-20210129-CA0I-N8TJ-LWDJ-M8SB3DR2XVWJ-low.gif
12 V to 3.3 V 2.2 μH, 2.2 MHz After ferrite bead filter
NR/SS = Open, 100 nF, 470 nF, 2.2 μF, BW = 100 Hz to 100 kHz
Figure 6-38 Output Noise Density vs Frequency
12 V to 3.3 V 2.2 μH, 2.2 MHz After ferrite bead filter
NR/SS = 470 nF, CFF = Open, 100 nF, 1 μF, BW = 100 Hz to 100 kHz
Figure 6-40 Output Noise Density vs Frequency
GUID-20210129-CA0I-BQF0-JH46-SVXPKMT225RW-low.gif
5 V to 1.2 V 2.2 μH, 2.2 MHz After ferrite bead filter
NR/SS = Open, 100 nF, 470 nF, 2.2 μF, BW = 100 Hz to 100 kHz
Figure 6-42 Output Noise Density vs Frequency
5 V to 3.3 V 2.2 μH, 2.2 MHz After ferrite bead filter
NR/SS = Open, 100 nF, 470 nF, 2.2 μF, BW = 100 Hz to 100 kHz
Figure 6-44 Output Noise Density vs Frequency
12 V to 1.2 V2.2 μH, 1 MHz1 A, 2 A, 3 A
After Ferrite Bead Filter
Figure 6-46 PSRR vs Frequency
12 V to 1.8 V2.2 μH, 1 MHz1 A, 2 A, 3 A
After Ferrite Bead
Figure 6-48 PSRR vs Frequency
VIN = 5 V
Figure 6-50 Low-Side RDS(ON) vs Junction Temperature
GUID-20200714-CA0I-Q9XJ-X3JC-DSFDL8FZRVM4-low.gif
5 VIN to 0.8 VOUT1 MHz
Figure 6-52 Output Voltage Error vs Load
GUID-20200707-SS0I-XFKS-P6CD-7FRVRWJBRJXC-low.gif
12 VIN1 MHz
Figure 6-54 Oscillator Frequency vs Temperature
GUID-20200707-SS0I-J7BM-LS1Z-GHSCTRCMPJDT-low.gif
VIN: 3 V, 5 V, 12 V
Figure 6-56 Shutdown Current vs Temperature