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TPS61033-Q1
  • TPS61033-Q1
  • TPS61033-Q1

TPS61033-Q1

ACTIVE

Automotive, 5-V, 5-A boost converter with power good, output discharge and PFM/PWM control

Texas Instruments TPS61033-Q1 Product Info

1 April 2026 0

Parameters

Rating

Automotive

Topology

Boost

Vin (max) (V)

5.5

Vin (min) (V)

1.8

Vout (max) (V)

5.5

Vout (min) (V)

2.2

Switch current limit (typ) (A)

5.88

Features

Enable, Forced PWM, Frequency synchronization, Light-load efficiency, Load Disconnect, Output discharge, Pass-through mode, Power good, Spread Spectrum, Synchronous rectification, UVLO fixed

EMI features

Frequency Dithering, Spread Spectrum

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.000018

Duty cycle (max) (%)

90

TI functional safety category

Functional Safety-Capable

Package

SOT-5X3 (DRL)-8-3.36 mm² 2.1 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: 1.8V to 5.5 V
  • Output voltage range: 2.2 V to 5.5 V (TPS61033)
    • When FB is connected to VIN output voltage fixed 5.0 V (TPS61033X )
  • Two valley switching current limit options
    • TPS61033-Q1: 5.5-A typical
    • TPS610333-Q1: 1.85-A typical
  • High efficiency and power capability
    • Two 25-mΩ (LS) / 46-mΩ (HS) MOSFETs
    • Support up to 2.4 MHz with small L-C
    • Up to 93.42% efficiency at V IN = 3.3 V, V OUT = 5 V, and I OUT = 1 A
    • Up to 90.78% efficiency at V IN = 3.3 V, V OUT = 5 V, and I OUT = 2 A
  • Extends the system operating time
    • Typical 20-µA quiescent current into V IN pin
    • Typical 5.3µA quiescent current into V OUT pin
    • Typical 0.1-µA shutdown current
  • ±1.5% Reference voltage accuracy over –40°C to +125°C
  • Power good output with window comparator
  • Pin-selectable auto PFM or forced PWM mode at light load
  • Spread spectrum frequency modulation
  • Pass-through mode when V IN > V OUT
  • Safety and robust operation features
    • True disconnection between input and output during shutdown
    • Output overvoltage and thermal shutdown protections
    • Output short-circuit protection
  • 2.1-mm × 1.6-mm SOT-5X3 8-Pin package
  • AEC-Q100 qualified:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
  • Functional Safety-Capable
  • Input voltage range: 1.8V to 5.5 V
  • Output voltage range: 2.2 V to 5.5 V (TPS61033)
    • When FB is connected to VIN output voltage fixed 5.0 V (TPS61033X )
  • Two valley switching current limit options
    • TPS61033-Q1: 5.5-A typical
    • TPS610333-Q1: 1.85-A typical
  • High efficiency and power capability
    • Two 25-mΩ (LS) / 46-mΩ (HS) MOSFETs
    • Support up to 2.4 MHz with small L-C
    • Up to 93.42% efficiency at V IN = 3.3 V, V OUT = 5 V, and I OUT = 1 A
    • Up to 90.78% efficiency at V IN = 3.3 V, V OUT = 5 V, and I OUT = 2 A
  • Extends the system operating time
    • Typical 20-µA quiescent current into V IN pin
    • Typical 5.3µA quiescent current into V OUT pin
    • Typical 0.1-µA shutdown current
  • ±1.5% Reference voltage accuracy over –40°C to +125°C
  • Power good output with window comparator
  • Pin-selectable auto PFM or forced PWM mode at light load
  • Spread spectrum frequency modulation
  • Pass-through mode when V IN > V OUT
  • Safety and robust operation features
    • True disconnection between input and output during shutdown
    • Output overvoltage and thermal shutdown protections
    • Output short-circuit protection
  • 2.1-mm × 1.6-mm SOT-5X3 8-Pin package

Description

The TPS61033-Q1 is a synchronous boost converter. The device provides a power supply solution for portable equipment and smart devices, powered by various batteries and other power supplies. The TPS61033-Q1 has a 5.5-A (typical) valley switch current limit and TPS610333-Q1 has 1.85-A (typical) valley switch current limit over full temperature range.

The TPS61033-Q1 uses adaptive, constant on-time valley-current-control topology to regulate the output voltage and operates at a 2.4-MHz switching frequency. There are two optional modes at light load by configuring the MODE pin: auto PFM mode and forced PWM. These modes balance the efficiency and noise immunity in light load. The TPS61033-Q1 consumes a 20 µA quiescent current from V IN at light load condition. During shutdown, the TPS61033-Q1 is completely disconnected from the input power and only consumes a 0.1 µA current to achieve long battery life. The TPS61033-Q1 has a 5.75-V output overvoltage protection, an output short circuit protection, and thermal shutdown protection.

The TPS61033-Q1 offers a small solution size with a 2.1mm × 1.6mm SOT-5X3 (8) package and a minimum amount of external components.

The TPS61033-Q1 is a synchronous boost converter. The device provides a power supply solution for portable equipment and smart devices, powered by various batteries and other power supplies. The TPS61033-Q1 has a 5.5-A (typical) valley switch current limit and TPS610333-Q1 has 1.85-A (typical) valley switch current limit over full temperature range.

The TPS61033-Q1 uses adaptive, constant on-time valley-current-control topology to regulate the output voltage and operates at a 2.4-MHz switching frequency. There are two optional modes at light load by configuring the MODE pin: auto PFM mode and forced PWM. These modes balance the efficiency and noise immunity in light load. The TPS61033-Q1 consumes a 20 µA quiescent current from V IN at light load condition. During shutdown, the TPS61033-Q1 is completely disconnected from the input power and only consumes a 0.1 µA current to achieve long battery life. The TPS61033-Q1 has a 5.75-V output overvoltage protection, an output short circuit protection, and thermal shutdown protection.

The TPS61033-Q1 offers a small solution size with a 2.1mm × 1.6mm SOT-5X3 (8) package and a minimum amount of external components.

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