SLUSFG2A September   2024  – November 2024 TPS6286A06 , TPS6286B10

PRODMIX  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Options
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1 Absolute Maximum Rating
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 I2C Interface Timing Requirements
    7. 6.7 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Power Save Mode (PFM)
      2. 7.3.2 Forced PWM Mode
      3. 7.3.3 Low Dropout Operation (100% Duty Cycle)
      4. 7.3.4 Soft Start
      5. 7.3.5 Switch Current Limit and HICCUP Short-Circuit Protection
      6. 7.3.6 Undervoltage Lockout
      7. 7.3.7 Thermal Warning and Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Enable and Disable (EN)
      2. 7.4.2 Output Discharge
      3. 7.4.3 Power Good (PG)
      4. 7.4.4 Voltage Setting and Mode Selection (VSET/MODE), TPS6286Axx Devices
    5. 7.5 Programming
      1. 7.5.1 Serial Interface Description
      2. 7.5.2 Standard-, Fast-, and Fast-Mode Plus Protocol
      3. 7.5.3 HS Mode Protocol
      4. 7.5.4 I2C Update Sequence
      5. 7.5.5 I2C Register Reset
  9. 8 Register Map
    1. 8.1 Target Address Byte
    2. 8.2 Register Address Byte
    3. 8.3 VOUT Register
    4. 8.4 CONTROL Register
    5. 8.5 STATUS Register
  10. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Custom Design With WEBENCH® Tools
        2. 9.2.2.2 Setting the Output Voltage
        3. 9.2.2.3 Output Filter Design
        4. 9.2.2.4 Inductor Selection
        5. 9.2.2.5 Capacitor Selection
      3. 9.2.3 Application Curves
    3. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
        1. 9.4.2.1 Thermal Considerations
  11. 10Device and Documentation Support
    1. 10.1 Device Support
      1. 10.1.1 Third-Party Products Disclaimer
      2. 10.1.2 Development Support
        1. 10.1.2.1 Custom Design With WEBENCH® Tools
    2. 10.2 Documentation Support
      1. 10.2.1 Related Documentation
    3. 10.3 Receiving Notification of Documentation Updates
    4. 10.4 Support Resources
    5. 10.5 Trademarks
    6. 10.6 Electrostatic Discharge Caution
    7. 10.7 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
  • VBM|13
Thermal pad, mechanical data (Package|Pins)
Orderable Information

5 Pin Configuration and Functions

Figure 5-1 13-Pin VBM VQFN-HR Package for FB Version (Top View)
Figure 5-2 13-Pin VBM VQFN-HR Package for FB Version (Bottom View)
Table 5-1 Pin Functions
PINTYPE(1)DESCRIPTION
NAMENO.
EN5IDevice enable pin. To enable the device, this pin must be pulled high. Pulling this pin low disables the device. Do not leave floating.
FB3IVoltage feedback input. Connect the output voltage resistor divider to this pin. When using a fixed output voltage, connect directly to OUT.
GND10,11,12GNDPower ground pin
OUT2IOutput voltage sense pin. This pin must be directly connected to the output capacitor.
PG7OPower-good open-drain output pin. The pullup resistor can be connected to voltages up to 5.5V. If unused, leave this pin floating. This pin is pulled to GND when the device is in shutdown.
SS4ISoft-start pin. An external capacitor can adjust the soft-start time. If unused, leave this pin floating to set a default SS time.
SW1, 9PSwitch pin of the power stage
VIN8,13PPower supply input voltage pin
VSET/MODE6IConnecting a resistor to GND selects one of the fixed output voltages. Tying the pin high or low selects an adjustable output voltage. After the device has started up, the pin operates as a MODE input. Applying a high level selects forced PWM mode operation and a low level selects power save mode operation.
(1) I = input, O = output, P = power, GND = ground
Figure 5-3 13-Pin VBM VQFN-HR Package for I2C Version (Top View)
Figure 5-4 13-Pin VBM VQFN-HR Package for I2C Version (Bottom View)
Table 5-2 Pin Functions
PINTYPE(1)DESCRIPTION
NAMENO.
EN5IDevice enable pin. To enable the device, this pin must be pulled high. Pulling this pin low disables the device. Do not leave floating.
GND10,11,12GNDPower ground pin
OUT2IOutput voltage sense pin. This pin must be directly connected to the output capacitor.
PG3OPower-good open-drain output pin. The pullup resistor can be connected to voltages up to 5.5V. If unused, leave this pin floating. This pin is pulled to GND when the device is in shutdown.
SCL6II2C serial clock pin. Do not leave this pin floating. Connect this pin to AGND if not used.
SDA7I/OI2C serial data pin. Do not leave this pin floating. Connect this pin to AGND if not used.
SS4ISoft-start pin. An external capacitor can adjust the soft-start time. If unused, leave this pin floating to set a default SS time.
SW1, 9PSwitch pin of the power stage
VIN8,13PPower supply input voltage pin
(1) I = input, O = output, P = power, GND = ground