SLUSEC8B March   2021  – April 2024 TPS628501 , TPS628502 , TPS628503

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and Functions
  7. 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
  8. 7 Parameter Measurement Information
    1. 7.1 Schematic
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Precise Enable (EN)
      2. 8.3.2 COMP/FSET
      3. 8.3.3 MODE / SYNC
      4. 8.3.4 Spread Spectrum Clocking (SSC)
      5. 8.3.5 Undervoltage Lockout (UVLO)
      6. 8.3.6 Power Good Output (PG)
      7. 8.3.7 Thermal Shutdown
    4. 8.4 Device Functional Modes
      1. 8.4.1 Pulse Width Modulation (PWM) Operation
      2. 8.4.2 Power Save Mode Operation (PWM/PFM)
      3. 8.4.3 100% Duty-Cycle Operation
      4. 8.4.4 Current Limit and Short Circuit Protection
      5. 8.4.5 Foldback Current Limit and Short Circuit Protection
      6. 8.4.6 Output Discharge
      7. 8.4.7 Soft Start
      8. 8.4.8 Input Overvoltage Protection
  10. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Programming the Output Voltage
      2. 9.1.2 Inductor Selection
      3. 9.1.3 Capacitor Selection
        1. 9.1.3.1 Input Capacitor
        2. 9.1.3.2 Output Capacitor
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
    3. 9.3 System Examples
      1. 9.3.1 Synchronizing to an External Clock
    4. 9.4 Power Supply Recommendations
    5. 9.5 Layout
      1. 9.5.1 Layout Guidelines
      2. 9.5.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Device Support
      1. 10.1.1 Third-Party Products Disclaimer
    2. 10.2 Receiving Notification of Documentation Updates
    3. 10.3 Support Resources
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

Package Options

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

9.2.3 Application Curves

All plots have been taken with a nominal switching frequency of 2.25 MHz when set to PWM mode, unless otherwise noted. The BOM is according to Table 7-1.

GUID-20210228-CA0I-5DKZ-SJDB-W3XLS0ZCNW7N-low.gif
VOUT = 3.3 V PFM TA = 25°C
Figure 9-2 Efficiency Versus Output Current
GUID-20210228-CA0I-QCWG-6V5F-GCRN03DRLV79-low.gif
VOUT = 1.8 V PFM TA = 25°C
Figure 9-4 Efficiency Versus Output Current
GUID-20210228-CA0I-XTWC-1S30-QJWFTX1JNS7N-low.gif
VOUT = 1.1 V PFM TA = 25°C
Figure 9-6 Efficiency Versus Output Current
GUID-20210228-CA0I-NLCX-06L2-MNKGP5XPZPWB-low.gif
VOUT = 0.6 V PFM TA = 25°C
Figure 9-8 Efficiency Versus Output Current
GUID-20210228-CA0I-MNLT-MNVD-9J1XNNZK317C-low.gif
VOUT = 3.3 V PFM TA = 25°C
Figure 9-10 Output Voltage Versus Output Current
GUID-20210228-CA0I-ZBJ4-HTFX-ZBCNQWHV23QJ-low.gif
VOUT = 1.8 V PFM TA = 25°C
Figure 9-12 Output Voltage Versus Output Current
GUID-20210228-CA0I-L3HP-CPR4-BVVKWDNWLVHT-low.gif
VOUT = 1.1 V PFM TA = 25°C
Figure 9-14 Output Voltage Versus Output Current
GUID-20210228-CA0I-XZN3-0PK1-X2M1KQKPXNPS-low.gif
VOUT = 0.6 V PFM TA = 25°C
Figure 9-16 Output Voltage Versus Output Current
GUID-20210917-SS0I-2M4H-VNFG-WBMH2HD56HKC-low.gif
VOUT = 0.6 V PWM θJA = 60°C/W
Figure 9-18 Output Current Versus Ambient Temperature
GUID-20210917-SS0I-31CD-8T7L-0NL5MRMKR6CQ-low.gif
VOUT = 1.8 V PWM θJA = 60°C/W
Figure 9-20 Output Current Versus Ambient Temperature
GUID-D78B6568-4BC6-4F37-B4AD-472A176F9B2D-low.gif
VOUT = 3.3 VPFMTA = 25°C
VIN = 5.0 VIOUT = 0.2 A to 1.8 A to 0.2 A
Figure 9-22 Load Transient Response
GUID-CD98ECD1-20D6-44F4-886A-53E989C6BF1E-low.gif
VOUT = 1.8 VPFMTA = 25°C
VIN = 5.0 VIOUT = 0.2 A to 1.8 A to 0.2 A
Figure 9-24 Load Transient Response
GUID-BDCB0AC0-CFA7-46EB-BD52-BBA7D0EB1260-low.gif
VOUT = 1.2 VPFMTA = 25°C
VIN = 5.0 VIOUT = 0.2 A to 1.8 A to 0.2 A
Figure 9-26 Load Transient Response
GUID-44DA4D50-97B9-4E26-83F2-6CAD9AEC7462-low.gif
VOUT = 1.0 VPFMTA = 25°C
VIN = 5.0 VIOUT = 0.2 A to 1.8 A to 0.2 A
Figure 9-28 Load Transient Response
GUID-F083D4E7-3F8A-4942-B81E-2BDDDC30D9DD-low.gif
VOUT = 0.6 VPFMTA = 25°C
VIN = 3.3 VIOUT = 0.2 A to 1.8 A to 0.2 A
Figure 9-30 Load Transient Response
GUID-47A2DB2F-AA05-4708-9570-2DCABF01DD5C-low.gif
VOUT = 3.3 VPFMTA = 25°C
IOUT = 0.2 AVIN = 4.5 V to 5.5 V to 4.5 V
Figure 9-32 Line Transient Response
GUID-0C145CED-0B3F-41AC-93F9-09ADE6A8DDAF-low.gif
VOUT = 1.8 VPFMTA = 25°C
IOUT = 0.2 AVIN = 4.5 V to 5.5 V to 4.5 V
Figure 9-34 Line Transient Response
GUID-224E12AF-9297-40EF-A552-5C214BEA5EA4-low.gif
VOUT = 1.2 VPFMTA = 25°C
IOUT = 0.2 AVIN = 4.5 V to 5.5 V to 4.5 V
Figure 9-36 Line Transient Response
GUID-FF1FEF3F-28C9-4252-9CA1-EE0380F8B236-low.gif
VOUT = 1.0 VPFMTA = 25°C
IOUT = 0.2 AVIN = 4.5 V to 5.5 V to 4.5 V
Figure 9-38 Line Transient Response
GUID-C34EDB93-D815-40F6-A7B7-39CAA1D1DD06-low.gif
VOUT = 0.6 VPFMTA = 25°C
IOUT = 0.2 AVIN = 3.0 V to 3.6 V to 3.0 V
Figure 9-40 Line Transient Response
GUID-C29AC3B6-EC6B-407C-8D3B-DDA6AD3CA9AB-low.gif
VOUT = 3.3 VPFMTA = 25°C
VIN = 5 VIOUT = 0.2 A
Figure 9-42 Output Voltage Ripple
GUID-D6C5348C-9B19-4F26-B80C-351D4C5122DA-low.gif
VOUT = 1.8 VPFMTA = 25°C
VIN = 5 VIOUT = 0.2 A
Figure 9-44 Output Voltage Ripple
GUID-2085433D-71D0-4928-91FF-62098D5BE29E-low.gif
VOUT = 1.2 VPFMTA = 25°C
VIN = 5 VIOUT = 0.2 A
Figure 9-46 Output Voltage Ripple
GUID-524C3700-71B5-4F36-B004-E3A3A5669E43-low.gif
VOUT = 1.0 VPFMTA = 25°C
VIN = 5 VIOUT = 0.2 A
Figure 9-48 Output Voltage Ripple
GUID-EA84D39A-5CC9-4D21-8253-AFD479E117FB-low.gif
VOUT = 0.6 VPFMTA = 25°C
VIN = 3.3 VIOUT = 0.2 A
Figure 9-50 Output Voltage Ripple
GUID-8BA512E5-4868-40A8-BD67-EF3C847AC241-low.gif
VOUT = 3.3 VPWM or PFMTA = 25°C
VIN = 5 VIOUT = 2 A
Figure 9-52 Start-Up Timing
GUID-3ED7E521-4D07-460A-A877-399994369AF3-low.gif
VOUT = 1.2 VPWM or PFMTA = 25°C
VIN = 5 VIOUT = 2 A
Figure 9-54 Start-Up Timing
GUID-9DD4499D-00C6-44C6-8D86-9A725A99622B-low.gif
VOUT = 0.6 VPWM or PFMTA = 25°C
VIN = 3.3 VIOUT = 2 A
Figure 9-56 Start-Up Timing
GUID-20210228-CA0I-C1XK-QHCZ-WH8H78MJXXPH-low.gif
VOUT = 3.3 V PWM TA = 25°C
Figure 9-3 Efficiency Versus Output Current
GUID-20210228-CA0I-1XZW-JCWN-9L6G8VQRBXRG-low.gif
VOUT = 1.8 V PWM TA = 25°C
Figure 9-5 Efficiency Versus Output Current
GUID-20210228-CA0I-RG0K-VJCD-BBQKBXZBVHLF-low.gif
VOUT = 1.1 V PWM TA = 25°C
Figure 9-7 Efficiency Versus Output Current
GUID-20210228-CA0I-8J30-R6XD-GNSD84JQ16P3-low.gif
VOUT = 0.6 V PWM TA = 25°C
Figure 9-9 Efficiency Versus Output Current
GUID-20210228-CA0I-4JWF-FBFM-CLVPDKXNGPTN-low.gif
VOUT = 3.3 V PWM TA = 25°C
Figure 9-11 Output Voltage Versus Output Current
GUID-20210228-CA0I-XSVV-M0WZ-K0ZFCJR733GB-low.gif
VOUT = 1.8 V PWM TA = 25°C
Figure 9-13 Output Voltage Versus Output Current
GUID-20210228-CA0I-T1LQ-VFT2-W0RWZRZLRRQ2-low.gif
VOUT = 1.1 V PWM TA = 25°C
Figure 9-15 Output Voltage Versus Output Current
GUID-20210228-CA0I-2TBB-1PBN-HGP6C6WWZLPF-low.gif
VOUT = 0.6 V PWM TA = 25°C
Figure 9-17 Output Voltage Versus Output Current
GUID-20210917-SS0I-62T9-WN1J-FPNCMBN65LQK-low.gif
VOUT = 1.1 V PWM θJA = 60°C/W
Figure 9-19 Output Current Versus Ambient Temperature
GUID-20210917-SS0I-W40J-FFQJ-23XT7XDFKHQ9-low.gif
VOUT = 3.3 V PWM θJA = 60°C/W
Figure 9-21 Output Current Versus Ambient Temperature
GUID-490F4268-11B3-4445-8756-AB2B72923CC4-low.gif
VOUT = 3.3 VPWMTA = 25°C
VIN = 5.0 VIOUT = 0.2 A to 1.8 A to 0.2 A
Figure 9-23 Load Transient Response
GUID-6F7FEF5A-F458-4C94-AF4D-3398C2258D65-low.gif
VOUT = 1.8 VPWMTA = 25°C
VIN = 5.0 VIOUT = 0.2 A to 1.8 A to 0.2 A
Figure 9-25 Load Transient Response
GUID-587AE1D7-8978-4B51-A7E7-270C5A8A2A96-low.gif
VOUT = 1.2 VPWMTA = 25°C
VIN = 5.0 VIOUT = 0.2 A to 1.8 A to 0.2 A
Figure 9-27 Load Transient Response
GUID-1BBFE0CE-94C0-4EB7-AD23-05339021FD80-low.gif
VOUT = 1.0 VPWMTA = 25°C
VIN = 5.0 VIOUT = 0.2 A to 1.8 A to 0.2 A
Figure 9-29 Load Transient Response
GUID-E11B69C7-7624-4B8B-AF44-0A7B592A29C0-low.gif
VOUT = 0.6 VPWMTA = 25°C
VIN = 3.3 VIOUT = 0.2 A to 1.8 A to 0.2 A
Figure 9-31 Load Transient Response
GUID-315694C0-9001-4187-9445-FBA891987E35-low.gif
VOUT = 3.3 VPWMTA = 25°C
IOUT = 2 AVIN = 4.5 V to 5.5 V to 4.5 V
Figure 9-33 Line Transient Response
GUID-62B87C21-7980-48FB-B51E-FD606F6FEF4B-low.gif
VOUT = 1.8 VPWMTA = 25°C
IOUT = 2 AVIN = 4.5 V to 5.5 V to 4.5 V
Figure 9-35 Line Transient Response
GUID-32685909-03DE-4EB9-9159-32C9525966F4-low.gif
VOUT = 1.2 VPWMTA = 25°C
IOUT = 2 AVIN = 4.5 V to 5.5 V to 4.5 V
Figure 9-37 Line Transient Response
GUID-56D7C721-2DE1-45AA-8D64-A97730BFF3E6-low.gif
VOUT = 1.0 VPWMTA = 25°C
IOUT = 2 AVIN = 4.5 V to 5.5 V to 4.5 V
Figure 9-39 Line Transient Response
GUID-44DBD172-16B0-42AC-AA4E-4B4797DC6505-low.gif
VOUT = 0.6 VPWMTA = 25°C
IOUT = 2 AVIN = 3.0 V to 3.6 V to 3.0 V
Figure 9-41 Line Transient Response
GUID-DC298588-3838-4048-A16D-151C8D25C6C7-low.gif
VOUT = 3.3 VPWMTA = 25°C
VIN = 5 VIOUT = 2 A
Figure 9-43 Output Voltage Ripple
GUID-1B79E657-F522-462E-96BE-CA3248E33F55-low.gif
VOUT = 1.8 VPWMTA = 25°C
VIN = 5 VIOUT = 2 A
Figure 9-45 Output Voltage Ripple
GUID-DC0FA358-60D1-4563-86EF-A469CE2BC52D-low.gif
VOUT = 1.2 VPWMTA = 25°C
VIN = 5 VIOUT = 2 A
Figure 9-47 Output Voltage Ripple
GUID-121D8D55-514A-4326-BDD6-75F9C874026B-low.gif
VOUT = 1.0 VPWMTA = 25°C
VIN = 5 VIOUT = 2 A
Figure 9-49 Output Voltage Ripple
GUID-8069776E-60FB-4F75-B2C6-C0375ADBEBA1-low.gif
VOUT = 0.6 VPWMTA = 25°C
VIN = 3.3 VIOUT = 2 A
Figure 9-51 Output Voltage Ripple
GUID-7DEC69CC-A336-48CE-A027-972E0BD2CBBA-low.gif
VOUT = 1.8 VPWM or PFMTA = 25°C
VIN = 5 VIOUT = 2 A
Figure 9-53 Start-Up Timing
GUID-923768FA-4CED-4068-805A-4E4BB55E906D-low.gif
VOUT = 1.0 VPWM or PFMTA = 25°C
VIN = 5 VIOUT = 2 A
Figure 9-55 Start-Up Timing