SLVSI74A July   2025  – November 2025 TLV61290

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and Functions
  7. 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 System Characteristics
    7. 6.7 I2C Interface Timing Characteristics
    8. 6.8 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 Output Voltage Setting
      2. 7.3.2 Switching frequency and Spread Spectrum Function
    4. 7.4 Device Functional Modes
      1. 7.4.1  Enable and Start-up
      2. 7.4.2  Operation Mode Setting
      3. 7.4.3  Bypass Mode
      4. 7.4.4  Boost Control Operation
      5. 7.4.5  Auto PFM Mode
      6. 7.4.6  Forced PWM Mode
      7. 7.4.7  Ultrasonic Mode
      8. 7.4.8  Output Discharge
      9. 7.4.9  Undervoltage Lockout
      10. 7.4.10 Current Limit Operation
      11. 7.4.11 Output Short-to-Ground Protection
      12. 7.4.12 Thermal Shutdown
      13. 7.4.13 Power-Good Indication Status
    5. 7.5 Programming
      1. 7.5.1 Data Validity
      2. 7.5.2 START and STOP Conditions
      3. 7.5.3 Byte Format
      4. 7.5.4 Acknowledge (ACK) and Not Acknowledge (NACK)
      5. 7.5.5 Target Address and Data Direction Bit
      6. 7.5.6 Single Read and Write
      7. 7.5.7 Multi-Read and Multi-Write
    6. 7.6 Register Maps
      1. 7.6.1 DeviceID Register
      2. 7.6.2 CONFIG Register
      3. 7.6.3 VOUTFLOORSET Register
      4. 7.6.4 ILIMBSTSET Register
      5. 7.6.5 VOUTROOFSET Register
      6. 7.6.6 STATUS Register
      7. 7.6.7 ILIMPTSET Register
      8. 7.6.8 BSTLOOP Register
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 TLV61290 with 2.5V-4.35V VIN, 3.4V VOUT, 4A Output Current
        1. 8.2.1.1 Design Requirement
        2. 8.2.1.2 Detailed Design Parameters
          1. 8.2.1.2.1 Inductor Selection
          2. 8.2.1.2.2 Output Capacitor
          3. 8.2.1.2.3 Input Capacitor
          4. 8.2.1.2.4 Checking Loop Stability
        3. 8.2.1.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
      3. 8.4.3 Thermal Information
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Third-Party Products Disclaimer
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information
    1.     79

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • YBG|16
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.1 Overview

The TLV61290 is a high-efficiency step-up converter featuring bypass mode optimized to provide low-noise voltage supply for 2G RF power amplifiers (PAs) in mobile phones and/or to pre-regulate voltage for supplying subsystem like eMMC memory, audio codec, LCD bias, antenna switches, RF engine PMIC and so on. This device is designed to allow the system to operate at maximum efficiency for a wide range of power consumption levels from a low-IQ, wide-voltage battery cell.

The capability of the TLV61290 to step-up the voltage as well as to bypass the input battery voltage when its level is high enough allow systems to operate at maximum performance over a wide range of battery voltages, thereby extending the battery life between charges. The device also addresses brownouts caused by the peak currents drawn by the APU and GPU which causes the battery rail to drop momentarily. Using the TLV61290 device as a pre-regulator eliminates system brownout condition while maintaining a stable supply rail for critical sub-system to function properly.

During auto PWM operation, the TLV61290 uses a hysteretic control scheme. At light load, the TLV61290 converter operates in power save mode with pulse frequency modulation (auto PFM), or forced PWM or Ultrasonic mode, which is programmable by I2C.

In general, a DC/DC step-up converter only operates in "true" boost mode, that is the output “boosted” by a certain amount above the input voltage. The TLV61290 device operates differently as it smoothly transitions in and out of zero duty cycle operation. Depending upon the input voltage, output voltage threshold and load current, the integrated bypass switch automatically transitions the converter into so called true bypass mode to maintain low-dropout and high-efficiency. The device exits true bypass mode (0% duty cycle operation) if the total dropout resistance in true bypass mode is insufficient to maintain the output voltage at the nominal level.

Dynamically adjust the output voltage by VSEL function (TLV612901). Use this feature to either raise the output voltage in anticipation of a positive load transient or to dynamically change the PA supply voltage depending on its mode of operation and/or transmitting power.

The TLV61290 integrates an I2C compatible interface allowing transfers up to 1Mbps. Use this communication interface to set the output voltage threshold at which the converter transitions between boost and bypass mode, for reprogramming the mode of operation (auto PFM or forced PWM or Ultrasonic mode), for settings the average current limit or resetting the output voltage for instance. The I2C compatible interface address can be adjusted by ADDR function (TLV61290). Use this ADDR function feature when there are one more units per one I2C bus.