SLVSD82B April   2017  – February 2021 TLV61046A

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and 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 Undervoltage Lockout
      2. 7.3.2 Enable and Disable
      3. 7.3.3 Soft Start
      4. 7.3.4 Overvoltage Protection
      5. 7.3.5 Output Short Circuit Protection
      6. 7.3.6 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 PWM Mode
      2. 7.4.2 Power Save Mode
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application - 12-V Output Boost Converter
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Custom Design With WEBENCH Tools
        2. 8.2.2.2 Programming the Output Voltage
        3. 8.2.2.3 Inductor Selection
        4. 8.2.2.4 Input and Output Capacitor Selection
      3. 8.2.3 Application Performance Curves
    3. 8.3 System Examples
      1. 8.3.1 Fixed 12-V Output Voltage with Three External Components
  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 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
      2. 11.1.2 Development Support
        1. 11.1.2.1 Custom Design With WEBENCH® Tools
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Support Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 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

TA = –40°C to 85°C, VIN = 3.6 V and VOUT = 12 V. Typical values are at TA = 25°C, unless otherwise noted.
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
POWER SUPPLY
VINInput voltage range1.85.5V
VIN_UVLOUnder voltage lockout thresholdVIN rising1.751.8V
VIN falling1.551.6
VIN_HYSVIN UVLO hysteresis200mV
IQ_VINQuiescent current into VIN pinIC enabled, no load, no switching, VIN = 1.8 V to 5.5 V, VOUT = 12 V110200µA
ISDShutdown current into VIN pinIC disabled, VIN = 1.8 V to 5.5 V, TA = 25°C0.11.0µA
OUTPUT
VOUTOutput voltage range3.328V
VOUT_12V12-V output voltage accuracyFB pin connected to VIN pin, TJ=0°C to 125°C11.712.112.4V
VREFFeedback voltagePWM mode, TA=25°C0.7830.7950.807V
PWM mode, TJ=-40°C to 125°C0.7750.7950.815V
PFM mode, TA=25°C0.803V
VOVPOutput overvoltage protection threshold2829.230.4V
VOVP_HYSOver voltage protection hysteresis0.9V
IFB_LKGLeakage current into FB pinTA = 25°C200nA
ISW_LKGLeakage current into SW pinIC disabled, TA = 25°C500nA
POWER SWITCH
RDS(on)Isolation MOSFET on resistanceVOUT = 12 V850mΩ
Low-side MOSFET on resistanceVOUT = 12 V450
fSWSwitching frequencyVIN = 3.6 V, VOUT = 12 V, PWM mode85010501250kHz
tON_minMinimal switch on time150250ns
ILIM_SWPeak switch current limitVIN = 3.6 V, VOUT = 12 V6809801250mA
VIN = 2.4 V, VOUT = 3.3 V20mA
ILIM_CHGPre-charge currentVIN = 3.6 V, VOUT = 0 V3050mA
tSTARTUPStartup timeVOUT from VIN to 12 V, COUT_effective = 2.2 µF, IOUT = 0 A25ms
LOGIC INTERFACE
VEN_HEN Logic high threshold1.2V
VEN_LEN Logic Low threshold0.4V
PROTECTION
TSDThermal shutdown thresholdTJ rising150°C
TSD_HYSThermal shutdown hysteresisTJ falling below TSD20°C