SLVS821E May   2008  – May 2019 TPS61087

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Simplified Schematic
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 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. 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. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Inductor Selection
        2. 8.2.2.2 Rectifier Diode Selection
        3. 8.2.2.3 Setting the Output Voltage
        4. 8.2.2.4 Compensation (COMP)
        5. 8.2.2.5 Input Capacitor Selection
        6. 8.2.2.6 Output Capacitor Selection
      3. 8.2.3 Application Curves
    3. 8.3 System Examples
      1. 8.3.1 General Boost Application Circuits
      2. 8.3.2 TFT LCD Application
      3. 8.3.3 White LED Applications
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Third-Party Products Disclaimer
    2. 11.2 Trademarks
    3. 11.3 Electrostatic Discharge Caution
    4. 11.4 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

6.5 Electrical Characteristics

VIN = 5 V, EN = VIN, VS = 15 V, TA = –40°C to 85°C, typical values are at TA = 25°C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
SUPPLY
VIN Input voltage range 2.5 6 V
IQ Operating quiescent current into IN Device not switching, VFB = 1.3 V 75 100 μA
ISDVIN Shutdown current into IN EN = GND 1 μA
VUVLO Undervoltage lockout threshold VIN falling 2.4 V
VIN rising 2.5 V
TSD Thermal shutdown Temperature rising 150 °C
TSDHYS Thermal shutdown hysteresis 14 °C
LOGIC SIGNALS EN, FREQ
VIH High-level input voltage VIN = 2.5 V to 6.0 V 2 V
Valid only for EN, VIN = 2.5 V to 4.3 V 1.6
VIL Low-level input voltage VIN = 2.5 V to 6.0 V 0.5 V
IINLEAK Input leakage current EN = FREQ = GND 0.1 μA
BOOST CONVERTER
VS Boost output voltage VIN + 0.5 18.5 V
VFB Feedback regulation voltage 1.230 1.238 1.246 V
gm Transconductance error amplifier 107 μA/V
IFB Feedback input bias current VFB = 1.238 V 0.1 μA
rDS(on) N-channel MOSFET on-resistance VIN = VGS = 5 V, ISW = current limit 0.13 0.18 Ω
VIN = VGS = 3V, ISW = current limit 0.16 0.23
ISWLEAK SW leakage current EN = GND, VSW = VIN = 6.0V 2 μA
ILIM N-Channel MOSFET current limit 3.2 4.0 4.8 A
ISS Soft-start current VSS = 1.238 V 7 10 13 μA
fS Oscillator frequency FREQ = VIN 0.9 1.2 1.5 MHz
FREQ = GND 480 650 820 kHz
Line regulation VIN = 2.5 V to 6.0 V, IOUT = 10 mA 0.0002 %/V
Load regulation VIN = 5.0 V, IOUT = 1 mA to 1 A 0.11 %/A