SLVSEW4 April   2019 TPS650002-Q1

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Typical Application Schematic
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin 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 Switching 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 Step-Down Converter
      2. 7.3.2 Soft Start
      3. 7.3.3 Linear Regulators
      4. 7.3.4 Power Good
    4. 7.4 Device Functional Modes
  8. 8 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 Output Filter Design (Inductor and Output Capacitor)
          1. 8.2.2.1.1 Inductor Selection
          2. 8.2.2.1.2 Output Capacitor Selection
        2. 8.2.2.2 Input Capacitor Selection
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Examples
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
    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

Package Options

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

7.1 Overview

The TPS650002-Q1 device has one step-down converter, and two low dropout regulators. The device has an input voltage range of 2.3 V to 6 V. This device is intended for (but not limited to) powering automotive camera modules.

To maximize efficiency, there are two modes of operation based on load conditions: PWM or PFM. By pulling the MODE pin high, forced PWM can be achieved. Pulling this pin low results in an automatic adjustment between PFM and PWM modes.

The two general-purpose low-dropout regulators each have their own separate enables and voltage inputs. The inputs can be tied to the output of the step-down converter or to a separate voltage source.

The switching frequency of the step-down converter is handled by the oscillator, with a typical frequency of
2.25 MHz.

The TPS650002-Q1 device also provides a power good signal to monitor the condition of the DC-DC and both LDOs. The DC-DC and LDOs are only monitored if their enable signal is high. If all enabled resources are in regulation, the pin is pulled low. If one or more of the enabled resources are out of regulation, the pin is placed in Hi-Z.