Home Power management DC/DC switching regulators Buck-boost & inverting regulators Buck-boost, inverting & split-rail converters (integrated switch)
Home
Power management
DC/DC switching regulators
Buck-boost & inverting regulators
Buck-boost, inverting & split-rail converters (integrated switch)

TPS631000

ACTIVE

1.5-A output current, high-power-density buck-boost converter

Order now
Data sheet

TPS631000

ACTIVE
Data sheet Order now

Product details

Topology Buck-Boost Vin (min) (V) 1.6 Vin (max) (V) 5.5 Vout (max) (V) 5.3 Vout (min) (V) 1.2 Duty cycle (max) (%) 100 Features Enable, Light Load Efficiency, Load Disconnect, Synchronous Rectification, UVLO Fixed Switch current limit (typ) (A) 2.9 Switching frequency (min) (kHz) 1800 Switching frequency (max) (kHz) 2200 Iq (typ) (mA) 0.008 Iout (max) (A) 2 Rating Catalog Operating temperature range (°C) -40 to 125 Type Converter
Topology Buck-Boost Vin (min) (V) 1.6 Vin (max) (V) 5.5 Vout (max) (V) 5.3 Vout (min) (V) 1.2 Duty cycle (max) (%) 100 Features Enable, Light Load Efficiency, Load Disconnect, Synchronous Rectification, UVLO Fixed Switch current limit (typ) (A) 2.9 Switching frequency (min) (kHz) 1800 Switching frequency (max) (kHz) 2200 Iq (typ) (mA) 0.008 Iout (max) (A) 2 Rating Catalog Operating temperature range (°C) -40 to 125 Type Converter
SOT-5X3 (DRL) 8 3.36 mm² 2.1 x 1.6
  • 1.6-V to 5.5-V input voltage range
    • Device input voltage > 1.65 V for start-up
  • 1.2-V to 5.3-V output voltage range (adjustable)
  • High output current capability, 3-A peak switch current
    • 2-A output current for VIN ≥ 3 V, VOUT = 3.3 V
    • 1.5-A output current for VIN ≥ 2.7 V, VOUT = 3.3 V
  • High efficiency over the entire load range
    • 8-µA typical quiescent current
    • Power save mode
  • 150-mV load-step response at a 1-A current step
  • Peak current buck-boost mode architecture
    • Seamless mode transition with < 20-mV output ripple
    • Forward and reverse current operation
    • Start-up into pre-biased outputs
    • Fixed-frequency operation with 2-MHz switching
  • Safety and robust operation features
    • Overcurrent protection and short-circuit protection
    • Integrated soft start with active ramp adoption
    • Overtemperature protection and overvoltage protection
    • True shutdown function with load disconnect
    • Forward and backward current limit
  • Small solution size
    • Small 1-µH inductor
    • Works with one 0805 output capacitor over the full VOUT range
  • Create a custom design using the TPS631000 with the WEBENCH Power Designer
  • 1.6-V to 5.5-V input voltage range
    • Device input voltage > 1.65 V for start-up
  • 1.2-V to 5.3-V output voltage range (adjustable)
  • High output current capability, 3-A peak switch current
    • 2-A output current for VIN ≥ 3 V, VOUT = 3.3 V
    • 1.5-A output current for VIN ≥ 2.7 V, VOUT = 3.3 V
  • High efficiency over the entire load range
    • 8-µA typical quiescent current
    • Power save mode
  • 150-mV load-step response at a 1-A current step
  • Peak current buck-boost mode architecture
    • Seamless mode transition with < 20-mV output ripple
    • Forward and reverse current operation
    • Start-up into pre-biased outputs
    • Fixed-frequency operation with 2-MHz switching
  • Safety and robust operation features
    • Overcurrent protection and short-circuit protection
    • Integrated soft start with active ramp adoption
    • Overtemperature protection and overvoltage protection
    • True shutdown function with load disconnect
    • Forward and backward current limit
  • Small solution size
    • Small 1-µH inductor
    • Works with one 0805 output capacitor over the full VOUT range
  • Create a custom design using the TPS631000 with the WEBENCH Power Designer

The TPS631000 is a constant frequency peak current mode control buck-boost converter. The device has a 3-A peak current limit (typical) and 1.6-V to 5.5-V input voltage range. The TPS631000 provides a power supply solution for system pre-regulators and voltage stabilizers.

Depending on the input voltage, the TPS631000 automatically operates in boost, buck, or in 3-cycle buck-boost mode when the input voltage is approximately equal to the output voltage. The transitions between modes happen at a defined duty cycle and avoid unwanted toggling within the modes to reduce output voltage ripple. 8-µA quiescent current and power save mode power enable the highest efficiency for light to no-load conditions.

The TPS631000 offers a very small solution size with a 1.2-mm × 2.1-mm SOT-583 package, a 1-µH inductor, and one 0805 output capacitor.

The TPS631000 is a constant frequency peak current mode control buck-boost converter. The device has a 3-A peak current limit (typical) and 1.6-V to 5.5-V input voltage range. The TPS631000 provides a power supply solution for system pre-regulators and voltage stabilizers.

Depending on the input voltage, the TPS631000 automatically operates in boost, buck, or in 3-cycle buck-boost mode when the input voltage is approximately equal to the output voltage. The transitions between modes happen at a defined duty cycle and avoid unwanted toggling within the modes to reduce output voltage ripple. 8-µA quiescent current and power save mode power enable the highest efficiency for light to no-load conditions.

The TPS631000 offers a very small solution size with a 1.2-mm × 2.1-mm SOT-583 package, a 1-µH inductor, and one 0805 output capacitor.
open-in-new Find other Buck-boost, inverting & split-rail converters (integrated switch)
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare products
Same functionality with different pin-out to the compared device.
NEW TPS631010 ACTIVE 3-A peak current high-efficiency ultra-small solution size buck-boost converter TPS631010 has smaller WCSP package and wider output voltage range
TPS63810 ACTIVE 2.5-A high-efficient buck-boost converter with I²C interface for dynamic voltage scaling

With I2C and larger current capability
NEW TPS63901 ACTIVE 5.5-V buck-boost converter with 75-nA operating IQ in WCSP package

Lower IQ and smaller size, with adjustable current limit

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 1
Type Title Date
* Data sheet TPS631000 1.5-A Output Current, High Power Density Buck-Boost Converter datasheet (Rev. B) PDF | HTML 20 Jun 2022

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS631000EVM — TPS631000 high power density buck-boost converter evaluation module

The TPS631000 is a constant frequency peak current mode control buck-boost converter. The device has typical 2.9-A peak current limit and input voltage range of 1.6 V to 5.5 V. The TPS631000 provides a power supply solution for system pre-regulator and voltage stabilizer.
User guide: PDF | HTML
Not available on TI.com
Simulation model

TPS631000 Encrypted PSPICE Model

SLVMDV2.ZIP (528 KB) - PSpice Model
Download
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Request
Package Pins Download
SOT-5X3 (DRL) 8 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos