Output Short-Circuit Protection Reference Design for the TPS61088 Boost Converter
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Key Document


This reference design delivers an output short-circuit protection solution for the TPS61088 boost converter. This feature is realized by an over current protection (OCP) circuit. When the output is shorted to ground or the load current is higher than a certain value, the OCP circuit will disconnect the TPS61088 from the load. This solution only requires an additional low-cost comparator, a sense resistor, and a small sized N-MOSFET. With this small amount of additional circuitry, the TPS61088 is protected from being damaged in the output short circuit and over load conditions.

  • 2.7V to 4.2V input voltage range
  • 5V/3A, 9V/2A and 12V/1.5A output capability
  • Output short circuit and over load protection
  • True disconnection between input and output during shut down
  • Ideal for power bank, blue-tooth speaker application, etc.

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(Output Voltage 1)
Vin (Min) (V)3.6
Vin (Max) (V)4.4
Vout (Nom) (V)9
Iout (Max) (A)2
Output Power (W)18
Input TypeDC
TopologyBoost- Integrated Switch

TI Devices (4)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD16323Q3  25-V, N channel NexFET™ power MOSFET, single SON 3 mm x 3 mm, 5.5 mOhm  MOSFETs  Sample & Buy Not Available
LP5907  250-mA, low-noise, high-PSRR, ultra-low-dropout voltage regulator with low IQ and enable  Power management  Sample & Buy View Design Kits & Evaluation Modules
TL331  High Voltage Single Differential Comparator  Amplifiers  Sample & Buy Not Available
TPS61088  10-A Fully-Integrated Synchronous Boost Converter  Step-up (boost) regulators  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD16323Q3 VSON-CLIP (DQG)| 8 Download Download
LP5907 Download Download
Download -
Download Download
TL331 Download Download
TPS61088 Download Download

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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 859 11 May 2016
Design files (6)
Title Type Size (KB) Date
ZIP 494 11 Aug 2016
ZIP 380 11 Aug 2016
PDF 548 11 Aug 2016
PDF 153 11 Aug 2016
PDF 79 11 Aug 2016
PDF 255 11 Aug 2016

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