SLUSFD2B September   2023  – March 2024 TPSM861252 , TPSM861253 , TPSM861257

PRODUCTION DATA  

  1.   1
  2. Features
  3. Applications
  4. Description
  5. Family Devices
  6. Pin Configuration and Functions
  7. 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. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 PWM Operation and D-CAP3™ Control Mode
      2. 7.3.2 Eco-mode Control
      3. 7.3.3 Soft Start and Prebiased Soft Start
      4. 7.3.4 Overvoltage Protection
      5. 7.3.5 Frequency
      6. 7.3.6 Large Duty Operation
      7. 7.3.7 Current Protection and Undervoltage Protection
      8. 7.3.8 Undervoltage Lockout (UVLO) Protection
      9. 7.3.9 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Eco-mode Operation
      2. 7.4.2 FCCM Mode Operation
  9. 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 Custom Design with WEBENCH® Tools
        2. 8.2.2.2 Output Voltage Resistors Selection
        3. 8.2.2.3 Output Filter Selection
        4. 8.2.2.4 Input Capacitor Selection
        5. 8.2.2.5 Enable Circuit
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Development Support
        1. 9.1.1.1 Custom Design with WEBENCH® Tools
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

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

Typical Characteristics

TJ = –40°C to 125°C, VIN = 12V (unless otherwise noted)

GUID-C23C1167-1447-4C9C-8DA2-2C3C8CEC6A32-low.svgFigure 6-1 TPSM861252 Quiescent Current
GUID-4E66ACF3-1B41-462C-9B41-428830E90ED6-low.svgFigure 6-3 Enable On Threshold Voltage
GUID-4A389C9B-BA77-4569-981B-9DA709C9820E-low.svgFigure 6-5 Low-Side RDS(ON)
GUID-20230908-SS0I-WQMT-1MCS-TKCZCGDDC87K-low.svgFigure 6-7 TPSM861253 Output Voltage
GUID-20230907-SS0I-VMGX-MJLP-DV6L4LDWFMWT-low.svgFigure 6-9 TPSM861253 Frequency vs Loading at 12V Input Voltage
GUID-20240223-SS0I-PDDD-3282-XZZ29FCZCXHK-low.svgFigure 6-11 TPSM861252 Efficiency at 0.6VOUT
GUID-20240223-SS0I-BQTG-75NK-32TLDC4SXXSG-low.svgFigure 6-13 TPSM861252 Efficiency at 1.05VOUT
GUID-20240223-SS0I-FQM3-5HRM-3LVK90SSTW2G-low.svgFigure 6-15 TPSM861252 Efficiency at 3.3VOUT
GUID-20240223-SS0I-MD9K-L23D-LDWD90N8M5CN-low.svgFigure 6-17 TPSM861252 Efficiency at 5VOUT
GUID-20240223-SS0I-CTCM-JRZV-9T3DBGN6333J-low.svgFigure 6-19 TPSM861252 Frequency vs Loading at 12V Input Voltage
GUID-8BF78F20-8C67-45A1-A6B3-1158632C6D2A-low.svgFigure 6-2 TPSM861253 and TPSM861257 Quiescent Current
GUID-71D26974-4648-4184-89BF-DF38A6CC8E0E-low.svgFigure 6-4 Enable Off Threshold Voltage
GUID-9A49D51A-9178-427C-9058-2BC9E5D4B690-low.svgFigure 6-6 High-Side RDS(ON)
GUID-20230907-SS0I-VWXV-PN5J-KJPXLHJJGKGM-low.svgFigure 6-8 TPSM861253 Efficiency
GUID-20240223-SS0I-J583-1G3H-JJZGCRJW5D1Q-low.svgFigure 6-10 TPSM861252 and TPSM861257 Vref voltage
GUID-20240223-SS0I-FJXB-08N9-VRKVKKDQNZZZ-low.svgFigure 6-12 TPSM861257 Efficiency at 0.6VOUT
GUID-20240223-SS0I-FNLL-NFZR-0DPM7KCHT6CS-low.svgFigure 6-14 TPSM861257 Efficiency at 1.05VOUT
GUID-20240223-SS0I-GXKG-WT2X-X4VTKZZP10KP-low.svgFigure 6-16 TPSM861257 Efficiency at 3.3VOUT
GUID-20240223-SS0I-JLMB-ZDMN-JZ60Z3JRDGCK-low.svgFigure 6-18 TPSM861257 Efficiency at 5VOUT
GUID-20240223-SS0I-KKQ0-LNTC-HRL1PTLP76DT-low.svgFigure 6-20 TPSM861257 Frequency vs Loading at 12V Input Voltage