SLVSIF3B February   2025  – August 2026 TPS561300

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1  Fixed-Frequency PWM Control
      2. 6.3.2  Pulse Frequency Mode
      3. 6.3.3  Error Amplifier
      4. 6.3.4  Slope Compensation and Output Current
      5. 6.3.5  Enable and Adjusting Undervoltage Lockout
      6. 6.3.6  Safe Start-Up into Prebiased Outputs
      7. 6.3.7  Voltage Reference
      8. 6.3.8  Adjusting Output Voltage
      9. 6.3.9  Internal Soft Start
      10. 6.3.10 Bootstrap Voltage (BOOT)
      11. 6.3.11 Overcurrent Protection
        1. 6.3.11.1 High-Side MOSFET Overcurrent Protection
        2. 6.3.11.2 Low-Side MOSFET Overcurrent Protection
      12. 6.3.12 Spread Spectrum
      13. 6.3.13 Output Overvoltage Protection (OVP)
      14. 6.3.14 Thermal Shutdown
    4. 6.4 Device Functional Modes
      1. 6.4.1 Normal Operation
      2. 6.4.2 Eco-mode Operation
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 TPS561300 5V to 30V Input, 5V Output Converter
      2. 7.2.2 Design Requirements
      3. 7.2.3 Detailed Design Procedure
        1. 7.2.3.1 Input Capacitor Selection
        2. 7.2.3.2 Bootstrap Capacitor Selection
        3. 7.2.3.3 Output Voltage Setpoint
        4. 7.2.3.4 Undervoltage Lockout Setpoint
        5. 7.2.3.5 Inductor Selection
        6. 7.2.3.6 Output Capacitor Selection
        7. 7.2.3.7 Feed-Forward Capacitor
      4. 7.2.4 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Third-Party Products Disclaimer
    2. 8.2 Documentation Support
      1. 8.2.1 Related Documentation
    3. 8.3 Receiving Notification of Documentation Updates
    4. 8.4 Support Resources
    5. 8.5 Trademarks
    6. 8.6 Electrostatic Discharge Caution
    7. 8.7 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

5.5 Electrical Characteristics

The electrical ratings specified in this section apply to all specifications in this document, unless otherwise noted. These specifications are interpreted as conditions that do not degrade the device parametric or functional specifications for the life of the product. TJ = –40°C to +150°C, VIN = 4.5V to 30V, (unless otherwise noted).
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
SUPPLY AND UVLO
IQ(VIN) VIN quiescent current Non-switching, VIN = 12V, VEN = 5V, VFB = 1V 28 µA
ISD(VIN) VIN shutdown supply current VIN = 12V, VEN = 5V 3 µA
VIN(UVLO) VIN undervoltage lockout Rising VIN 3.9 4.2 4.5 V
Falling VIN 3.4 3.7 4 V
Hysteresis 400 480 560 mV
ENABLE (EN PIN)
V(EN_RISING) Enable threshold Rising 1.21 1.28 V
V(EN_FALLING) Falling 1.1 1.19 V
I(EN_INPUT) Input current VEN = 1V 0.7 μA
I(EN_HYS) Hysteresis current VEN = 1.5V 1.55 μA
FEEDBACK AND ERROR AMPLIFIER
VFB Feedback voltage TJ = 25°C 590 596 602 mV
TJ = 0°C to 85°C 596 mV
VIN = 12V, TJ = –40°C to 150°C 587 596 605 mV
IFB(LKG) FB input leakage current VIN = 12V, VFB = 0.6V 0.15 µA
POWER STAGE
R(HSD) High-side FET on resistance TA = 25°C, VBST – SW = 5V 100 mΩ
R(LSD) Low-side FET on resistance TA = 25°C, VIN = 12V 60 mΩ
tON(min)(1) Minimum ON pulse width VIN = 12V, IOUT = 1A 70 ns
tON(max)(1) Maximum ON pulse width VIN = 5V 62 µs
CURRENT LIMIT
I(LIM_HS) High side current limit Peak current limit on HS MOSFET 1.6 2.3 2.7 A
I(LIM_LS) Low side source current limit Valley current limit on LS MOSFET 1.2 1.4 1.9 A
I(SKIP)(1) Pulse skip mode minimum peak inductor current threshold 300 mA
tOC_HICCUP(WAIT) Wait time before entering hiccup mode 512 cycles
tOC_HICCUP Time between current-limit hiccup burst 16384 cycles
SWITCHING FREQUENCY
FSW Center switching frequency, CCM operation VIN = 12V 850 1100 1350 kHz
FFSS Swing frequency with frequency spread spectrum FSW/512 kHz
FSPREAD Spread of switching frequency with frequency spread spectrum Frequency dithering over center frequency ±6 %
OUTPUT OVP
VOV Overvoltage-protection (OVP) threshold voltage VFB rising 108 %
VOV_HYS Overvoltage-protection (OVP) hysteresis 4 %
STARTUP
tSS Internal fixed soft-start time From 10% to 90% of target VOUT 5 ms
OVER TEMPERATURE PROTECTION
Thermal Shutdown(1) Thermal shutdown threshold 160 °C
Thermal shutdown hysteresis 10 °C
Time between over temperature hiccup burst 32768 Cycles
(1) Not production tested