SLVSCM8D May   2015  – August 2021 TPS61088

PRODUCTION DATA  

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Pin Configuration and 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 Enable and Start-up
      2. 7.3.2 Undervoltage Lockout (UVLO)
      3. 7.3.3 Adjustable Switching Frequency
      4. 7.3.4 Adjustable Peak Current Limit
      5. 7.3.5 Overvoltage Protection
      6. 7.3.6 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Operation
        1. 7.4.1.1 PWM Mode
        2. 7.4.1.2 PFM Mode
  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 Custom Design with WEBENCH Tools
        2. 8.2.2.2 Setting Switching Frequency
        3. 8.2.2.3 Setting Peak Current Limit
        4. 8.2.2.4 Setting Output Voltage
        5. 8.2.2.5 Inductor Selection
        6. 8.2.2.6 Input Capacitor Selection
        7. 8.2.2.7 Output Capacitor Selection
        8. 8.2.2.8 Loop Stability
      3. 8.2.3 Application Curves
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    3. 10.3 Thermal Considerations
  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

Electrical Characteristics

Minimum and maximum values are at VIN = 2.7 V to 5.5 V and TJ = -40°C to 125°C. Typical values are at VIN = 3.6 V and TJ = 25°C
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
POWER SUPPLY
VINInput voltage range2.712V
VIN_UVLOUndervoltage lockout (UVLO) thresholdVIN rising2.7V
VIN falling2.42.5V
VIN_HYSVIN UVLO hysteresis200mV
VCC_UVLOUVLO thresholdVCC falling2.1V
IQOperating quiescent current from the VIN pinIC enabled, VEN = 2 V, no load, RILIM = 100 kΩ , VFB = 1.3 V, VOUT = 12 V, TJ up to 85°C13µA
Operating quiescent current from the VOUT pin110250µA
ISDShutdown current into the VIN pinIC disabled, VEN = 0 V, no load, no feedback resistor divider connected to the VOUT pin, TJ up to 85°C13µA
VCCVCC regulationIVCC = 5 mA, VIN = 8 V5.8V
EN AND MODE INPUT
VENHEN high threshold voltageVCC = 6 V1.2V
VENLEN low threshold voltageVCC = 6 V0.4V
RENEN internal pull-down resistanceVCC = 6 V800kΩ
VMODEHMODE high threshold voltageVCC = 6 V4.0V
VMODELMODE low threshold voltageVCC = 6 V1.5V
RMODEMODE internal pull-up resistanceVCC = 6 V800kΩ
OUTPUT
VOUTOutput voltage range4.512.6V
VREFReference voltage at the FB pinPWM mode1.1861.2041.222V
PFM mode1.212
ILKG_FBFB pin leakage currentVFB = 1.2 V100nA
ISSSoft-start charging current5μA
ERROR AMPLIFIER
ISINKCOMP pin sink currentVFB = VREF +200 mV, VCOMP = 1.5 V20µA
ISOURCECOMP pin source currentVFB = VREF –200 mV, VCOMP = 1.5 V20µA
VCCLPHHigh clamp voltage at the COMP pinVFB = 1 V, RILIM = 100 kΩ2.3V
VCCLPLLow clamp voltage at the COMP pinVFB = 1.5 V, RILIM = 100 kΩ, MODE pin floating1.4
GEAError amplifier transconductanceVCOMP = 1.5 V190µA/V
POWER SWITCH
RDS(on)High-side MOSFET on-resistanceVCC = 6 V1318mΩ
Low-side MOSFET on-resistanceVCC = 6 V1116.5mΩ
CURRENT LIMIT
ILIMPeak switch current limit in PFM modeRILIM = 100 kΩ, VCC = 6 V, MODE pin floating10.611.913A
Peak switch current limit in FPWM modeRILIM = 100 kΩ, VCC = 6 V, MODE pin short to ground9.010.311.4A
VILIMReference voltage at the ILIM pin1.204V
SWITCHING FREQUENCY
ƒSWSwitching frequencyRFREQ = 301 kΩ, VIN = 3.6 V, VOUT = 12 V500kHz
tON_minMinimum on-timeRFREQ = 301 kΩ, VIN = 3.6 V, VOUT = 12 V90180ns
PROTECTION
VOVPOutput overvoltage protection thresholdVOUT rising12.713.213.6V
VOVP_HYSOutput overvoltage protection hysteresisVOUT falling below VOVP0.25V
THERMAL SHUTDOWN
TSDThermal shutdown thresholdTJ rising150°C
TSD_HYSThermal shutdown hysteresisTJ falling below TSD20°C