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TPS61299-Q1
  • TPS61299-Q1
  • TPS61299-Q1

TPS61299-Q1

ACTIVE

95nA Iq 5.5V boost converter with input current limit and fast transient performance

Texas Instruments TPS61299-Q1 Product Info

1 April 2026 3

Parameters

Rating

Automotive

Topology

Boost

Vin (max) (V)

5.5

Vin (min) (V)

0.5

Vout (max) (V)

5.5

Vout (min) (V)

1.8

Switch current limit (typ) (A)

1.5

Features

Enable, Load Disconnect, Pass-through mode, UVLO fixed

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.0000001

Duty cycle (max) (%)

100

TI functional safety category

Functional Safety-Capable

Package

SOT-5X3 (DRL)-6-2.56 mm² 1.6 x 1.6

Features

  • AEC-Q100 qualified:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
  • Functional Safety-Capable
  • Input voltage range: 0.5V to 5.5V
  • 0.7V minimum input voltage for start-up
  • Input operating voltage down to 150mV with signal VIN > 0.7V
  • Output voltage range: 1.8V to 5.5V VSEL pin select output voltage
  • Average input current limit: 1.2A
  • 95nA typical quiescent current from VOUT
  • 60nA typical shutdown current from VIN and SW
  • Up to 91% efficiency at VIN = 3.6V, VOUT = 5V, and IOUT = 10µA
  • Up to 94 % efficiency at VIN = 3.6V, VOUT = 5V, and IOUT = 200mA
  • True disconnection at EN low
  • Automatic PFM/PWM mode transition
  • Auto pass-through at VIN > VOUT
  • Output SCP and thermal shutdown protections

  • SOT563 package (1.6mm x 1.6mm)

  • AEC-Q100 qualified:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
  • Functional Safety-Capable
  • Input voltage range: 0.5V to 5.5V
  • 0.7V minimum input voltage for start-up
  • Input operating voltage down to 150mV with signal VIN > 0.7V
  • Output voltage range: 1.8V to 5.5V VSEL pin select output voltage
  • Average input current limit: 1.2A
  • 95nA typical quiescent current from VOUT
  • 60nA typical shutdown current from VIN and SW
  • Up to 91% efficiency at VIN = 3.6V, VOUT = 5V, and IOUT = 10µA
  • Up to 94 % efficiency at VIN = 3.6V, VOUT = 5V, and IOUT = 200mA
  • True disconnection at EN low
  • Automatic PFM/PWM mode transition
  • Auto pass-through at VIN > VOUT
  • Output SCP and thermal shutdown protections

  • SOT563 package (1.6mm x 1.6mm)

Description

The TPS61299-Q1 is a synchronous boost converter with 95nA ultra-low quiescent current and average input current limit. The device provides a power solution for portable equipment with alkaline battery and coin cell battery. This device operates at high efficiency under light-load condition to achieve long operation time and average input current limit can avoid battery discharging with high current.

The TPS61299-Q1 has wide input voltage range from 0.5V to 5.5V and output voltage range from 1.8V to 5.5V. The average input current limit of this device is 1.2A. The TPS61299-Q1 with 1.2A current limit can support up to 500mA output current from 3V to 5V conversion and achieve approximately 94% efficiency at 200mA load.

The TPS61299-Q1 has optional fast-load transient performance at output voltage is 4.5V, 5V, or 5.5V.

The TPS61299-Q1 supports true shutdown function when it is disabled.

TThe TPS61299-Q1 offers a very small solution size with 1.6mm × 1.6mm SOT563 package.

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