SLVSB50C December   2011  – June 2020 TPS61087-Q1

PRODUCTION DATA.  

  1. Features
  2. Applications
  3. Description
    1.     Device Images
      1.      Simplified Schematic
  4. Revision History
  5. Pin Configuration and Functions
    1.     Pin Functions
  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 Typical Characteristics
  7. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Soft Start
      2. 7.3.2 Frequency Select Pin (FREQ)
      3. 7.3.3 Undervoltage Lockout (UVLO)
      4. 7.3.4 Thermal Shutdown
      5. 7.3.5 Overvoltage Prevention
    4. 7.4 Device Functional Modes
  8. Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Typical Application Circuit: 5 V to 15 V (fS = 1.2 MHz)
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Inductor Selection
          2. 8.2.1.2.2 Rectifier Diode Selection
          3. 8.2.1.2.3 Setting the Output Voltage
          4. 8.2.1.2.4 Compensation (COMP)
          5. 8.2.1.2.5 Input Capacitor Selection
          6. 8.2.1.2.6 Output Capacitor Selection
      2. 8.2.2 Application Curves
      3. 8.2.3 Other Application Circuit Examples
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  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 Support Resources
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

Typical Characteristics

The typical characteristics are measured with the inductors 7447789003 3.3 µH (high frequency) or 74454068 6.8 µH (low frequency) from Wurth and the rectifier diode SL22.

Table 1. Table of Graphs

FIGURE
IOUT(max) Maximum load current vs Input voltage at High frequency (1.2 MHz) Figure 1
IOUT(max) Maximum load current vs Input voltage at Low frequency (650 kHz) Figure 2
η Efficiency vs Load current, VS = 15 V, VIN = 5 V Figure 3
vs Load current, VS = 9 V, VIN = 3.3 V Figure 4
Supply current vs Supply voltage Figure 5
Oscillator frequency vs Load current Figure 6
Oscillator frequency vs Supply voltage Figure 7
TPS61087-Q1 icc_vcc2_lvs821.gifFigure 1. Maximum Load Current vs Input Voltage
TPS61087-Q1 icc_vcc3_lvs821.gifFigure 2. Maximum Load Current vs Input Voltage
TPS61087-Q1 eff_io_lvs821.gifFigure 3. Efficiency vs Load Current
TPS61087-Q1 icc_vcc_lvs821.gifFigure 5. Supply Current vs Supply Voltage
TPS61087-Q1 f_vcc_lvs821.gifFigure 7. Oscillator Frequency vs Supply Voltage
TPS61087-Q1 eff2_io_lvs821.gifFigure 4. Efficiency vs Load Current
TPS61087-Q1 f_io_lvs821.gifFigure 6. Oscillator Frequency vs Load Current