用户手册 — Texas Instruments Evaluation Board for the LM10506 LM10506EVAL/NOPB

目录

• FEATURES

  1
• APPLICATIONS

  1
• KEY SPECIFICATIONS

  1
• DESCRIPTION

  1
  • Overview

    2
    • SUPPLY SPECIFICATION

      2
  • Connection Diagram and Package Marking

    3
• Absolute Maximum Ratings

  5
• Operating Ratings

  5
• General Electrical Characteristics

  5
• Buck 1 Electrical Characteristics

  6
• Buck 2 Electrical Characteristics

  7
• Buck 3 Electrical Characteristics

  7
• LDO Electrical Characteristics

  8
• Comparators Electrical Characteristics

  8
• Typical Performance Characteristics

  9
• General Description

  13
  • SPI DATA INTERFACE

    14
    • Registers Configurable Via The SPI Interface

      15
  • BUCK REGULATORS OPERATION

    19
    • Buck Regulators Description

      19
    • PWM Operation

      19
    • PFM Operation (Bucks 1, 2 & 3)

      20
    • Soft Start

      21
    • Current Limiting

      21
    • Internal Synchronous Rectification

      21
    • Bypass-FET Operation on Buck 1 and Buck 2 (Applies to Buck 1 only on LM10506-B)

      21
    • Low Dropout Operation

      22
    • Out of Regulation

      22
  • Device Operating Modes

    23
    • STARTUP SEQUENCE

      23
    • POWER-ON DEFAULT AND DEVICE ENABLE

      24
    • RESET: PIN FUNCTION

      24
    • STANDBY: FUNCTION

      24
    • HL_B2, HL_B3 FUNCTION

      26
    • UNDERVOLTAGE LOCKOUT (UVLO)

      26
    • OVERVOLTAGE LOCKOUT (OVLO)

      26
    • DEVICE STATUS, INTERRUPT ENABLE

      26
    • THERMAL SHUTDOWN (TSD)

      26
    • COMPARATOR

      27
  • RECOMMENDATIONS FOR UNUSED FUNCTIONS AND PINS

    27
  • External Components Selection

    28
    • OUTPUT INDUCTORS & CAPACITORS SELECTION

      28
    • INDUCTOR SELECTION

      28
  • PCB Layout Considerations

    32
    • PCB LAYOUT THERMAL DISSIPATION FOR DSBGA PACKAGE

      33
• Revision History

  34