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TPSM81299
  • TPSM81299

TPSM81299

ACTIVE

95nA quiescent current, 5.5V boost module with input current limit

Texas Instruments TPSM81299 Product Info

1 April 2026 4

Parameters

Rating

Catalog

Topology

Boost

Vin (max) (V)

5.5

Vin (min) (V)

0.5

Vout (max) (V)

5.5

Vout (min) (V)

1.8

Features

Bypass Mode Pass-through Mode, Enable, Load Disconnect, UVLO Fixed

Operating temperature range (°C)

-40 to 125

Switch current limit (typ) (A)

1.9

Type

Module

Duty cycle (max) (%)

100

Switching frequency (min) (kHz)

1000

Switching frequency (max) (kHz)

3000

Package

QFN-FCMOD (VCM)-7-8.1 mm² 3 x 2.7

Features

  • Input voltage range: 0.5V to 5.5V
  • 0.7V minimum start-up voltage
  • Input operating voltage (PVIN) down to 150mV with signal AVIN > 0.7V
  • Output voltage range: 1.8V to 5.5V for device with input current limit no more than 1.2A
  • Average input current limit: 5mA; 25mA; 50mA; 100mA; 250mA, 500mA, 1.2A, 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)
  • Input voltage range: 0.5V to 5.5V
  • 0.7V minimum start-up voltage
  • Input operating voltage (PVIN) down to 150mV with signal AVIN > 0.7V
  • Output voltage range: 1.8V to 5.5V for device with input current limit no more than 1.2A
  • Average input current limit: 5mA; 25mA; 50mA; 100mA; 250mA, 500mA, 1.2A, 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)

Description

The TPSM81299 is a synchronous boost module, with inductor and converter both incorporated inside, providing 95nA ultra-low quiescent current and average input current limit. The device provides a power product for portable equipment with alkaline battery and coin cell battery. This device features high efficiency under light-load condition to achieve long operation time and average input current limit avoids battery discharging with high current.

The TPSM81299 has wide input voltage range from 0.5V to 5.5V and output voltage ranges from 1.8V to 5.5V. The device has different versions for average input current limit from 5mA to 1.5A. The TPSM81299 with 1.2A current limit supports up to 600mA output current from 3.6V to 5V conversion and achieve approximately 94% efficiency at 200mA load.

The TPSM81299 has optional fast-load transient performance at output voltage is 4.5V, 5V or 5.5V. In fast-load transient mode, the typical setting time is 8µs when output current transient from 0A to 200mA.

The device supports true shutdown function when it is disabled.

The TPSM81299 offers a very small solution size with 7-pin 3mm x 2.7mm QFN package .

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