SLVSCM8C May   2015  – February 2019 TPS61088

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Typical Application Circuit
  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 Enable and Startup
      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. 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. 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 Custom Design with WEBENCH Tools
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Device Support
      1. 11.3.1 Third-Party Products Disclaimer
    4. 11.4 Community Resources
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 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

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
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
POWER SUPPLY
VIN Input voltage range 2.7 12 V
VIN_UVLO Undervoltage lockout (UVLO) threshold VIN rising 2.7 V
VIN falling 2.4 2.5 V
VIN_HYS VIN UVLO hysteresis 200 mV
VCC_UVLO UVLO threshold VCC falling 2.1 V
IQ Operating quiescent current from the VIN pin IC enabled, VEN = 2 V, no load, RILIM = 100 kΩ , VFB = 1.3 V, VOUT = 12 V, TJ up to 85°C 1 3 µA
Operating quiescent current from the VOUT pin 110 250 µA
ISD Shutdown current into the VIN pin IC disabled, VEN = 0 V, no load, no feedback resistor divider connected to the VOUT pin, TJ up to 85°C 1 3 µA
VCC VCC regulation IVCC = 5 mA, VIN = 8 V 5.8 V
EN AND MODE INPUT
VENH EN high threshold voltage VCC = 6 V 1.2 V
VENL EN low threshold voltage VCC = 6 V 0.4 V
REN EN internal pull-down resistance VCC = 6 V 800 kΩ
VMODEH MODE high threshold voltage VCC = 6 V 4.0 V
VMODEL MODE low threshold voltage VCC = 6 V 1.5 V
RMODE MODE internal pull-up resistance VCC = 6 V 800 kΩ
OUTPUT
VOUT Output voltage range 4.5 12.6 V
VREF Reference voltage at the FB pin PWM mode 1.186 1.204 1.222 V
PFM mode 1.212
ILKG_FB FB pin leakage current VFB = 1.2 V 100 nA
ISS Soft-start charging current 5 μA
ERROR AMPLIFIER
ISINK COMP pin sink current VFB = VREF +200 mV, VCOMP = 1.5 V 20 µA
ISOURCE COMP pin source current VFB = VREF –200 mV, VCOMP = 1.5 V 20 µA
VCCLPH High clamp voltage at the COMP pin VFB = 1 V, RILIM = 100 kΩ 2.3 V
VCCLPL Low clamp voltage at the COMP pin VFB = 1.5 V, RILIM = 100 kΩ, MODE pin floating 1.4
GEA Error amplifier transconductance VCOMP = 1.5 V 190 µA/V
POWER SWITCH
RDS(on) High-side MOSFET on-resistance VCC = 6 V 13 18 mΩ
Low-side MOSFET on-resistance VCC = 6 V 11 16.5 mΩ
CURRENT LIMIT
ILIM Peak switch current limit in PFM mode RILIM = 100 kΩ, VCC = 6 V, MODE pin floating 10.6 11.9 13 A
Peak switch current limit in FPWM mode RILIM = 100 kΩ, VCC = 6 V, MODE pin short to ground 9.0 10.3 11.4 A
VILIM Reference voltage at the ILIM pin 1.204 V
SWITCHING FREQUENCY
ƒSW Switching frequency RFREQ = 301 kΩ, VIN = 3.6 V, VOUT = 12 V 500 kHz
tON_min Minimum on-time RFREQ = 301 kΩ, VIN = 3.6 V, VOUT = 12 V 90 180 ns
PROTECTION
VOVP Output overvoltage protection threshold VOUT rising 12.7 13.2 13.6 V
VOVP_HYS Output overvoltage protection hysteresis VOUT falling below VOVP 0.25 V
THERMAL SHUTDOWN
TSD Thermal shutdown threshold TJ rising 150 °C
TSD_HYS Thermal shutdown hysteresis TJ falling below TSD 20 °C