SLVS413L October   2002  – August 2026 TPS61040 , TPS61041

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 Peak Current Control
      2. 6.3.2 Soft Start
      3. 6.3.3 Enable
      4. 6.3.4 Undervoltage Lockout
      5. 6.3.5 Thermal Shutdown
    4. 6.4 Device Functional Modes
      1. 6.4.1 Operation
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Inductor Selection, Maximum Load Current
        2. 7.2.2.2 Setting the Output Voltage
        3. 7.2.2.3 Line and Load Regulation
        4. 7.2.2.4 Output Capacitor Selection
        5. 7.2.2.5 Input Capacitor Selection
        6. 7.2.2.6 Diode Selection
      3. 7.2.3 Application Curves
    3. 7.3 System Examples
    4. 7.4 Power Supply Recommendations
    5. 7.5 Layout
      1. 7.5.1 Layout Guidelines
      2. 7.5.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Third-Party Products Disclaimer
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

5.5 Electrical Characteristics

VIN = 2.4V, EN = VIN, TA = –40°C to 85°C, typical values are at TA = 25°C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
SUPPLY CURRENT
VIN Input voltage range 1.8 6 V
IQ Operating quiescent current IOUT = 0mA, not switching, VFB = 1.3V 28 50 μA
ISD Shutdown current EN = GND 0.1 1 μA
VUVLO Undervoltage lockout threshold 1.5 1.7 V
ENABLE
VIH EN high level input voltage 1.3 V
VIL EN low level input voltage 0.4 V
II EN input leakage current EN = GND or VIN 0.1 1 μA
POWER SWITCH AND CURRENT LIMIT
Vsw Maximum switch voltage 30 V
toff Minimum off time 250 400 550 ns
ton Maximum on time 4 6 7.5 μs
RDS(on) MOSFET on-resistance VIN = 2.4V; ISW = 200mA; TPS61040 600 1000 mΩ
RDS(on) MOSFET on-resistance VIN = 2.4V; ISW = 200mA; TPS61041 750 1250 mΩ
MOSFET leakage current VSW = 28V 1 10 μA
ILIM MOSFET current limit TPS61040 350 400 450 mA
ILIM MOSFET current limit TPS61041 215 250 285 mA
OUTPUT
VOUT Adjustable output voltage range VIN 28 V
Vref Internal voltage reference 1.233 V
IFB Feedback input bias current VFB = 1.3V 1 μA
VFB Feedback trip point voltage 1.8V ≤ VIN ≤ 6V 1.208 1.233 1.258 V
Line regulation (1) 1.8V ≤ VIN ≤ 6V; VOUT = 18V; Iload = 10mA; CFF = not connected 0.05 %/V
Load regulation(1) VIN = 2.4V; VOUT = 18V; 0mA ≤ IOUT ≤ 30mA 0.15 %/mA
(1) The line and load regulation depend on the external component selection. See the application section for further information.