SLVS873F June   2015  – September 2021 TPS61098 , TPS610981 , TPS610982 , TPS610985 , TPS610986 , TPS610987

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagrams
    3. 8.3 Feature Description
      1. 8.3.1 Boost Controller Operation
      2. 8.3.2 Pass-Through Operation
      3. 8.3.3 LDO / Load Switch Operation
      4. 8.3.4 Start Up and Power Down
      5. 8.3.5 Over Load Protection
      6. 8.3.6 Thermal Shutdown
    4. 8.4 Device Functional Modes
      1. 8.4.1 Operation Modes by MODE Pin
        1. 8.4.1.1 Active Mode
        2. 8.4.1.2 Low Power Mode
      2. 8.4.2 Burst Mode Operation under Light Load Condition
      3. 8.4.3 Pass-Through Mode Operation
  9. 9 Applications and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 VMAIN to Power MCU and VSUB to Power Subsystem
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Device Choice
          2. 9.2.1.2.2 Maximum Output Current
          3. 9.2.1.2.3 Inductor Selection
          4. 9.2.1.2.4 Capacitor Selection
          5. 9.2.1.2.5 Control Sequence
        3. 9.2.1.3 Application Curves
      2. 9.2.2 VMAIN to Power the System in Low Power Mode
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
        3. 9.2.2.3 Application Curves
      3. 9.2.3 VSUB to Power the System in Active Mode
        1. 9.2.3.1 Design Requirements
        2. 9.2.3.2 Detailed Design Procedure
        3. 9.2.3.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Third-Party Products Disclaimer
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Receiving Notification of Documentation Updates
    4. 12.4 Support Resources
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

7.5 Electrical Characteristics

TJ = –40°C to 125°C and VIN = 0.7 V to 4.5 V. Typical values are at VIN = 1.5 V, TJ = 25°C, unless otherwise noted.
PARAMETERVERSIONTEST CONDITIONSMINTYPMAXUNIT
Power Supply
VINInput voltage rangeTPS61098x0.74.5V
VIN(start)Minimum input voltage at start-upTPS61098xRLoad ≥ 3 kΩ (1)0.7V
IQ(VIN)Quiescent current into the VIN pin
in Active mode		TPS61098xMODE = High, Boost or Pass-through
no load, no switching
TJ = –40°C to 85°C		24µA
Quiescent current into the VIN pin
in Low Power mode		TPS61098xMODE = Low, Boost or Pass-through
no load, no switching		590nA
IQ(VMAIN)Quiescent current into the VMAIN pin
in Active mode		TPS61098/1/5/6/7MODE = High, Boost or Pass-through
no load, no switching
TJ = –40°C to 85°C		1523µA
TPS610982MODE = High, Boost or Pass-through
no load, no switching
TJ = –40°C to 85°C		1823µA
Quiescent current into the VMAIN pin
in Low Power mode		TPS61098/1/7MODE = Low, Boost or Pass-through
no load, no switching
TJ = 25°C		300400nA
TPS61098/1/5/6/7MODE = Low, Boost or Pass-through
no load, no switching
TJ = –40°C to 85°C		300800nA
TPS610982MODE = Low, Boost or Pass-through
no load, no switching
TJ = –40°C to 85°C		410µA
ILKG(SW)Leakage current of the SW pin
(from the SW pin to GND pin)		TPS61098xV(MAIN) = V(SW) = 4.7 V, no load
TJ = –40°C to 85°C		5100nA
ILKG(MAIN)Leakage current of the VMAIN pin
(from the VMAIN pin to SW pin)		TPS61098xV(MAIN) = 4.7 V, V(SW) = 0 V, no load
TJ = –40°C to 85°C		10200nA
ILKG(SUB)Leakage current of the VSUB pin
(from the VMAIN pin to VSUB pin)		TPS61098/1/5/6/7MODE = Low, V(MAIN) = 4.7 V, V(SUB) = 0 V
TJ = –40°C to 85°C		10150nA
ILKG(MODE)Leakage current into the MODE pinTPS61098xV(MODE) = 5 V
TJ = –40°C to 85°C		530nA
Power Switch
RDS(on)_LSLow-side switch on resistanceTPS61098/7MODE = Low6001000mΩ
MODE = High300600mΩ
TPS610981/2/6MODE = Low / High350650mΩ
TPS610985MODE = Low / High400700mΩ
RDS(on)_HSRectifier on resistanceTPS61098/7MODE = Low7001000mΩ
MODE = High450700mΩ
TPS610981/2/6MODE = Low / High500700mΩ
TPS610985MODE = Low / High550750mΩ
R(LS)Load switch on resistanceTPS610985/61.22Ω
V(Dropout)LDO dropout voltageTPS61098/1/2/7ISUB = 50 mA60100mV
ILHInductor current rippleTPS61098x100mA
ILIM(BST)Boost switch current limitTPS61098x0.7 V < VIN < V(MAIN)350500650mA
ILIM(SUB)VSUB output current limitTPS61098xTJ = –20°C to 125°C200mA
I(DISCH)Discharge current from the VSUB pin to GND pinTPS610981/5/6/7MODE = Low, V(SUB) = 3 V58mA
Output
V(MAIN)Boost converter output voltageTPS61098/7MODE = High, VIN < V(PSTH), Burst mode, open loop4.45V
MODE = High, VIN < V(PSTH), PWM mode, open loop4.1424.274.398V
MODE = Low, VIN < V(PSTH), Burst mode, open loop2.3V
MODE = Low, VIN < V(PSTH), PWM mode, open loop2.1632.232.297V
TPS610981MODE = High / Low, VIN < V(PSTH), Burst mode, open loop3.4V
MODE = High / Low, VIN < V(PSTH), PWM mode, open loop3.2013.33.399V
TPS610982MODE = High / Low, VIN < V(PSTH), Burst mode, open loop3.4V
MODE = High / Low, VIN < V(PSTH), PWM mode, open loop3.2013.33.399V
TPS610985MODE = High / Low, VIN < V(PSTH), Burst mode, open loop3.1V
MODE = High / Low, VIN < V(PSTH), PWM mode, open loop2.913.03.09V
TPS610986MODE = High / Low, VIN < V(PSTH), Burst mode, open loop3.4V
MODE = High / Low, VIN < V(PSTH), PWM mode, open loop3.2013.33.399V
V(SUB)LDO output voltage
(LDO version)		TPS61098/7MODE = High3.0383.13.162V
TPS610981MODE = High2.943.03.06V
TPS610982MODE = High / Low2.7442.82.856V
V(PSTH)Pass-through mode thresholdTPS61098/7MODE = High, VIN rising4.4V
MODE = High, Hysteresis0.1V
MODE = Low, VIN rising2.25V
MODE = Low, Hysteresis0.1V
TPS610981MODE = High / Low, VIN rising3.35V
MODE = High / Low, Hysteresis0.1V
TPS610982MODE = High / Low, VIN rising3.35V
MODE = High / Low, Hysteresis0.1V
TPS610985MODE = High / Low, VIN rising3.05V
MODE = High / Low, Hysteresis0.1V
TPS610986MODE = High / Low, VIN rising3.35V
MODE = High / Low, Hysteresis0.1V
PSRRPower-supply rejection ratio from LDO input to outputTPS61098/1/2/7f = 1kHz, CO2 = 10 µF, ISUB = 10 mA
MODE = High		40dB
TPS610982f = 1kHz, CO2 = 10 µF, ISUB = 10 mA
MODE = Low		28dB
tstup_LDOVSUB start-up time
(LDO version and load switch version)		TPS61098xNo load
time from MODE high to 90% of V(SUB)		1ms
Control Logic
VILMODE input low voltageTPS61098x0.4V
VIHMODE input high voltageTPS61098x1.2V
Overtemperature protectionTPS61098x150°C
Overtemperature hysteresisTPS61098x25°C
(1) TPS61098x is able to drive RLoad > 150 Ω after VMAIN is established over 1.8 V.