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  • TPS7A39 Dual, 150-mA, Wide VIN Positive and Negative LDO Voltage Regulator

    • SBVS263A July   2017  – September 2017 TPS7A39

      PRODUCTION DATA.  

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  • TPS7A39 Dual, 150-mA, Wide VIN Positive and Negative LDO Voltage Regulator
  1. 1 Features
  2. 2 Applications
  3. 3 Description
  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 Startup Characteristics
    7. 6.7 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 Voltage Regulation
        1. 7.3.1.1 DC Regulation
        2. 7.3.1.2 AC and Transient Response
      2. 7.3.2 User-Settable Buffered Reference
      3. 7.3.3 Active Discharge
      4. 7.3.4 System Start-Up Controls
        1. 7.3.4.1 Start-Up Tracking
        2. 7.3.4.2 Sequencing
          1. 7.3.4.2.1 Enable (EN)
          2. 7.3.4.2.2 Undervoltage Lockout (UVLO) Control
    4. 7.4 Device Functional Modes
      1. 7.4.1 Normal Operation
      2. 7.4.2 Dropout Operation
      3. 7.4.3 Disabled
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1  Setting the Output Voltages on Adjustable Devices
      2. 8.1.2  Capacitor Recommendations
      3. 8.1.3  Input and Output Capacitor (CINx and COUTx)
      4. 8.1.4  Feed-Forward Capacitor (CFFx)
      5. 8.1.5  Noise-Reduction and Soft-Start Capacitor (CNR/SS)
      6. 8.1.6  Buffered Reference Voltage
      7. 8.1.7  Overriding Internal Reference
      8. 8.1.8  Start-Up
        1. 8.1.8.1 Soft-Start Control (NR/SS)
          1. 8.1.8.1.1 In-Rush Current
        2. 8.1.8.2 Undervoltage Lockout (UVLOx) Control
      9. 8.1.9  AC and Transient Performance
        1. 8.1.9.1 Power-Supply Rejection Ratio (PSRR)
        2. 8.1.9.2 Channel-to-Channel Output Isolation and Crosstalk
        3. 8.1.9.3 Output Voltage Noise
        4. 8.1.9.4 Optimizing Noise and PSRR
        5. 8.1.9.5 Load Transient Response
      10. 8.1.10 DC Performance
        1. 8.1.10.1 Output Voltage Accuracy (VOUTx)
        2. 8.1.10.2 Dropout Voltage (VDO)
      11. 8.1.11 Reverse Current
      12. 8.1.12 Power Dissipation (PD)
        1. 8.1.12.1 Estimating Junction Temperature
    2. 8.2 Typical Applications
      1. 8.2.1 Design 1: Single-Ended to Differential Isolated Supply
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Switcher Choice
          2. 8.2.1.2.2 Full Bridge Rectifier With Center-Tapped Transformer
          3. 8.2.1.2.3 Total Solution Efficiency
          4. 8.2.1.2.4 Feedback Resistor Selection
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Design 2: Getting the Full Range of a SAR ADC
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
        3. 8.2.2.3 Detailed Design Description
          1. 8.2.2.3.1 Regulation of -0.2 V
          2. 8.2.2.3.2 Feedback Resistor Selection
        4. 8.2.2.4 Application Curves
  9. 9 Power-Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Board Layout Recommendations to Improve PSRR and Noise Performance
    2. 10.2 Layout Example
    3. 10.3 Package Mounting
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Development Support
        1. 11.1.1.1 Evaluation Modules
        2. 11.1.1.2 Spice Models
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Receiving Notification of Documentation Updates
    4. 11.4 Community Resources
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Glossary
  12. 12Mechanical, Packaging, and Orderable Information
  13. IMPORTANT NOTICE

Package Options

Mechanical Data (Package|Pins)
  • DSC|10
    • MPDS239E
Thermal pad, mechanical data (Package|Pins)
  • DSC|10
    • QFND232J
Orderable Information
  • sbvs263a_oa
  • sbvs263a_pm
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