SLUSBW8 September   2014 TPS53632

PRODUCTION DATA.  

  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 Handling Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Timing Requirements
    7. 6.7 Switching Characteristics
    8. 6.8 Typical Characteristics (2-Phase Operation)
    9. 6.9 Typical Characteristics (3-Phase Operation)
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  Current Sensing
      2. 7.3.2  Load Transients
      3. 7.3.3  AutoBalance Current Sharing
      4. 7.3.4  PWM and SKIP Signals
      5. 7.3.5  5-V, 3.3-V and 1.8-V Undervoltage Lockout (UVLO)
      6. 7.3.6  Output Undervoltage Protection (UVP)
      7. 7.3.7  Overcurrent Protection (OCP)
      8. 7.3.8  Overvoltage Protection
      9. 7.3.9  Analog Current Monitor, IMON and Corresponding Digital Output Current
      10. 7.3.10 Addressing
      11. 7.3.11 I2C Interface Operation
        1. 7.3.11.1 Key for Protocol Examples
        2. 7.3.11.2 Protocol Examples
      12. 7.3.12 Start-Up Sequence
      13. 7.3.13 Phase Add and Drop Operation
      14. 7.3.14 Power Good Operation
      15. 7.3.15 Input Voltage Limits
      16. 7.3.16 Fault Behavior
    4. 7.4 Device Functional Modes
      1. 7.4.1 PWM Operation
    5. 7.5 Configuration and Programming
      1. 7.5.1 Operating Frequency
      2. 7.5.2 Overcurrent Protection (OCP) Level
      3. 7.5.3 IMON Gain
      4. 7.5.4 Slew Rate
      5. 7.5.5 Base Address
      6. 7.5.6 Ramp Selection
      7. 7.5.7 Active Phases
    6. 7.6 Register Maps
      1. 7.6.1 Voltage Select Register (VSR) (00h)
      2. 7.6.2 IMON Register (03h)
      3. 7.6.3 VMAX Register (04h)
      4. 7.6.4 Power State Register (06h)
      5. 7.6.5 SLEW Register (07h)
      6. 7.6.6 Lot Code Registers (10-13h)
      7. 7.6.7 Fault Register (14h)
  8. 8 Applications and Implementation
    1. 8.1 Application Information
      1. 8.1.1 3-Phase D-CAP+™, Step-Down Application
        1. 8.1.1.1 Design Requirements
        2. 8.1.1.2 Detailed Design Procedure
          1. 8.1.1.2.1 Step 1: Select Switching Frequency
          2. 8.1.1.2.2 Step 2: Set The Slew Rate
          3. 8.1.1.2.3 Step 3: Determine Inductor Value And Choose Inductor
          4. 8.1.1.2.4 Step 4: Determine Current Sensing Method
          5. 8.1.1.2.5 Step 5: DCR Current Sensing
          6. 8.1.1.2.6 Step 6: Select OCP Level
          7. 8.1.1.2.7 Step 7: Set the Load-Line Slope
          8. 8.1.1.2.8 Step 8: Current Monitor (IMON) Setting
        3. 8.1.1.3 Application Performance Plots
        4. 8.1.1.4 Loop Compensation for Zero Load-Line
  9. 9 Power Supply Recommendations
  10. 10 Layout
  11. 11Device and Documentation Support
    1. 11.1 Trademarks
    2. 11.2 Electrostatic Discharge Caution
    3. 11.3 Glossary
  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

1 Features

  • Selectable Phase Count: (3, 2, or 1)
  • I2C Interface for VID Control and Telemetry with Eight Device Addresses
  • D-CAP+™ Control for Fast Transient Response
  • Dynamic Phase Add and Drop Operation
  • Switching Frequency: 300 kHz to 1 MHz
  • Digital Current Monitor
  • 7-Bit, DAC Output Range: 0.50 V to 1.52 V
  • Optimized Efficiency at Light and Heavy Loads
  • Accurate, Adjustable Voltage Positioning or Zero Slope Load-Line
  • Patented AutoBalance™ Phase Balancing
  • Selectable, 8-Level Current Limit
  • 2.5-V to 24-V Conversion Voltage Range
  • Default Boot Voltage: 1.00 V
  • Small, 4-mm x 4-mm, 32-Pin, VQFN PowerPAD Package

2 Applications

  • High-Current, Low-Voltage Applications
  • Core Power for Microservers, Custom Microcontrollers, ASICs

3 Description

The TPS53632 device is a driverless step-down controller with serial control. Advanced features such as D-CAP+ architecture provide fast transient response, lowest output capacitance and high efficiency. The TPS53632 device supports the standard I2C Rev 3.0 interface for dynamic control of the output voltage and current monitor telemetry. It also has dynamic phase add and drop control and enters single-phase, discontinuous-current-mode operation to maximize light-load efficiency.

Other features include adjustable control of VCORE slew rate and voltage positioning. The TPS51604 device driver is designed specifically for this generation of controllers. In addition, the TPS53632 device can be used along with the TI power stage devices (driver MOSFETs). The TPS53632 device is packaged in a space saving, thermally enhanced, 32-pin VQFN package and is rated to operate at a range between –10°C and 105°C.

Device Information

PART NUMBER PACKAGE BODY SIZE
TPS53632 VQFN 4 mm × 4 mm

Simplified Schematic

simp_app_slusbw8.gif