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Texas Instruments TPSM81299 Power Module

Texas Instruments TPSM81299 Power Module is a synchronous boost power module with an integrated inductor and converter. This module is designed for ultra-low power consumption and high efficiency in portable applications. The TPSM81299 module features a quiescent current of 95nA, making it ideal for battery-powered devices such as wearables and medical equipment. This module operates over a wide input voltage range from 0.5V to 5.5V and an output voltage range from 1.8V to 5.5V. The TPSM81299 device supports a true shutdown function when it is disabled. This power module is ideal for smartwatches and smart bands, portable medical equipment, TWS, and optical module.

Features

  • 0.5V to 5.5V input voltage range
  • 0.7V minimum start-up voltage
  • Input operating voltage (PVIN) down to 150mV with signal AVIN >0.7V
  • 1.8V to 5.5V output voltage range for a device with an input current limit of no more than 1.2A 
  • Average input current limit: 5mA, 25mA, 50mA, 100mA, 250mA, 500mA, 1.2A, and 1.5A (different versions)
  • 95nA typical quiescent current into VOUT
  • 60nA typical shutdown current into AVIN
  • Up to 88% efficiency at PVIN =AVIN=3.6V, VOUT = 5V, and IOUT =10μA
  • Up to 94% efficiency at PVIN=AVIN = 3.6V, VOUT = 5V, and IOUT =200mA
  • Fast transient performance setting time 8μs at PVIN=AVIN = 3.6V, VOUT = 5V, IOUT = 0A -> 200mA
  • True disconnection at EN low
  • Automatic PFM/PWM mode transition
  • Auto pass-through at AVIN > VOUT
  • Output SCP and thermal shutdown protections
  • QFN package (3mm x 2.7mm x 1.27mm)

Applications

  • Smartwatch and smart band
  • Portable medical equipment
  • TWS
  • Optical module

Application Diagram

Application Circuit Diagram - Texas Instruments TPSM81299 Power Module

Block Diagram

Block Diagram - Texas Instruments TPSM81299 Power Module
Publicado: 2025-11-20 | Actualizado: 2025-11-30