Product details

Vin (Min) (V) 2.5 Vin (Max) (V) 6 Vout (Min) (V) 2.7 Vout (Max) (V) 27 Switch current limit (Typ) (A) 1.6 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 600 Switching frequency (Max) (kHz) 1200 Iq (Typ) (mA) 6 Features Synchronous Rectification Duty cycle (Max) (%) 94 Operating temperature range (C) -40 to 85 Rating Catalog
Vin (Min) (V) 2.5 Vin (Max) (V) 6 Vout (Min) (V) 2.7 Vout (Max) (V) 27 Switch current limit (Typ) (A) 1.6 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 600 Switching frequency (Max) (kHz) 1200 Iq (Typ) (mA) 6 Features Synchronous Rectification Duty cycle (Max) (%) 94 Operating temperature range (C) -40 to 85 Rating Catalog
VSON (DRC) 10 9 mm² 3.00 x 3.00 VSON (DRC) 10 9 mm² 3 x 3
  • 2.5-V to 6-V Input Voltage Range
  • Up to 27-V Output Voltage
  • 0.5-A Integrated Switch (TPS61080)
    1.3-A Integrated Switch (TPS61081)
  • 12-V/400-mA and 24-V/170-mA
    From 5-V (Typical)
  • Integrated Power Diode
  • 1.2-MHz/600-kHz Selectable Fixed
    Switching Frequency
  • Input-to-Output Isolation
  • Short-Circuit Protection
  • Programmable Soft Start
  • Overvoltage Protection
  • Up to 87% Efficiency
  • 10-Pin 3-mm × 3-mm QFN Package
  • 2.5-V to 6-V Input Voltage Range
  • Up to 27-V Output Voltage
  • 0.5-A Integrated Switch (TPS61080)
    1.3-A Integrated Switch (TPS61081)
  • 12-V/400-mA and 24-V/170-mA
    From 5-V (Typical)
  • Integrated Power Diode
  • 1.2-MHz/600-kHz Selectable Fixed
    Switching Frequency
  • Input-to-Output Isolation
  • Short-Circuit Protection
  • Programmable Soft Start
  • Overvoltage Protection
  • Up to 87% Efficiency
  • 10-Pin 3-mm × 3-mm QFN Package

The TPS6108x is a 1.2 MHz/600 kHz fixed-frequency boost regulator designed for high integration, which integrates a power switch, an I/O isolation switch, and a power diode. When a short-circuit condition is detected, the isolation switch opens up to disconnect the output from the input. As a result, the IC protects itself and the input source from any pin, except VIN, from being shorted to ground. The isolation switch also disconnects the output from input during shutdown to prevent any leakage current. Other provisions for protection include 0.5 A/1.3 A peak-to-peak overcurrent protection, programmable soft start (SS), over voltage protection (OVP), thermal shutdown, and under voltage lockout (UVLO).

The IC operates from input supplies including single Li-ion battery, triple NiMH, and regulated 5 V, such as USB output. The output can be boosted up to 27 V. TPS6108x can provide the supply voltages of OLED, TFT-LCD bias, 12-V and 24-V power rails. The output of TPS6108x can also be configured as a current source to power up to seven WLEDs in flash light applications.

The TPS6108x is a 1.2 MHz/600 kHz fixed-frequency boost regulator designed for high integration, which integrates a power switch, an I/O isolation switch, and a power diode. When a short-circuit condition is detected, the isolation switch opens up to disconnect the output from the input. As a result, the IC protects itself and the input source from any pin, except VIN, from being shorted to ground. The isolation switch also disconnects the output from input during shutdown to prevent any leakage current. Other provisions for protection include 0.5 A/1.3 A peak-to-peak overcurrent protection, programmable soft start (SS), over voltage protection (OVP), thermal shutdown, and under voltage lockout (UVLO).

The IC operates from input supplies including single Li-ion battery, triple NiMH, and regulated 5 V, such as USB output. The output can be boosted up to 27 V. TPS6108x can provide the supply voltages of OLED, TFT-LCD bias, 12-V and 24-V power rails. The output of TPS6108x can also be configured as a current source to power up to seven WLEDs in flash light applications.

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Technical documentation

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Type Title Date
* Data sheet TPS6108x High-Voltage DC-DC Boost Converter With 0.5-A,1.3-A Integrated Switch datasheet (Rev. E) 24 Dec 2014
Application note Using External Bias to Broaden Input Voltage Range of Boost Converters 08 Nov 2021
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 Dec 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Application note Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) 29 Nov 2017
Application note Extending the Soft Start Time Without a Soft Start Pin (Rev. B) 15 Jun 2017
Analog design journal Design considerations for a resistive feedback divider in a DC/DC converter 26 Apr 2012
Analog design journal Q3 2007 Issue Analog Applications Journal 10 Aug 2007
Analog design journal TPS6108x: A boost converter with extreme versatility 10 Aug 2007
Application note Minimizing Ringing at the Switch Node of a Boost Converter 15 Sep 2006
More literature Seminar 400 Topic 1 - Current-Mode Control of Switching Power Supplies 15 Feb 2001

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