Home Power management AC/DC & DC/DC converters (integrated FET)
Home
Power management
AC/DC & DC/DC converters (integrated FET)

TPS63805

ACTIVE

2-A, high-efficient, 11-µA quiescent current buck-boost converter with tiny solution size

Order now
Data sheet

TPS63805

ACTIVE
Data sheet Order now

Product details

Rating Catalog Topology Buck-Boost Switch current limit (typ) (A) 5 Vin (max) (V) 5.5 Vin (min) (V) 1.3 Vout (max) (V) 5.2 Vout (min) (V) 1.8 Features Enable, Light-load efficiency, Load Disconnect, Power good, Prebias startup, Synchronous rectification, UVLO fixed Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 3100 Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 11 Duty cycle (max) (%) 100 Type Converter
Rating Catalog Topology Buck-Boost Switch current limit (typ) (A) 5 Vin (max) (V) 5.5 Vin (min) (V) 1.3 Vout (max) (V) 5.2 Vout (min) (V) 1.8 Features Enable, Light-load efficiency, Load Disconnect, Power good, Prebias startup, Synchronous rectification, UVLO fixed Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 3100 Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 11 Duty cycle (max) (%) 100 Type Converter
DSBGA (YFF) 15 3.08000000000000022 mm² 1.4000000000000001 x 2.2
  • Three pin-to-pin device options: TPS63805, TPS63806, and TPS63807 with specific application focus
  • Input voltage range: 1.3 V to 5.5 V
    • Device input voltage > 1.8 V for start-up
  • Output voltage range: 1.8 V to 5.2 V (adjustable)
  • High efficiency over the entire load range
    • Power save mode and mode selection for forced PWM-mode
  • Peak current buck-boost mode architecture
    • Defined transition points between buck, buck-boost, and boost operation modes
    • Forward and reverse current operation
    • Start-up into pre-biased outputs
  • Safety and robust operation features
    • Integrated soft start
    • Overtemperature- and overvoltage-protection
    • True shutdown function with load disconnect
    • Forward and backward current limit
  • TPS63805
    • Optimized for smallest solution size of 18.5 mm2 (works with a 22-µF minimum output capacitor)
    • 2-A output current for VI ≥ 2.3 V, VO = 3.3 V
    • 11-µA operating quiescent current
  • TPS63806
    • Optimized for best load step response (180-mV load-step response at a 2 A current step)
    • Up to 2.5-A transient output current
    • 13-µA operating quiescent current
  • TPS63807
    • Optimized for smallest solution size of 18.5 mm2 (works with a 22-µF minimum output capacitor)
    • 2-A output current for VI ≥ 2.3 V, VO = 3.3 V
    • 11-µA operating quiescent current
    • Output discharge feature when EN is low
    • 480-µs Tramp for small inrush current during start-up
  • Three pin-to-pin device options: TPS63805, TPS63806, and TPS63807 with specific application focus
  • Input voltage range: 1.3 V to 5.5 V
    • Device input voltage > 1.8 V for start-up
  • Output voltage range: 1.8 V to 5.2 V (adjustable)
  • High efficiency over the entire load range
    • Power save mode and mode selection for forced PWM-mode
  • Peak current buck-boost mode architecture
    • Defined transition points between buck, buck-boost, and boost operation modes
    • Forward and reverse current operation
    • Start-up into pre-biased outputs
  • Safety and robust operation features
    • Integrated soft start
    • Overtemperature- and overvoltage-protection
    • True shutdown function with load disconnect
    • Forward and backward current limit
  • TPS63805
    • Optimized for smallest solution size of 18.5 mm2 (works with a 22-µF minimum output capacitor)
    • 2-A output current for VI ≥ 2.3 V, VO = 3.3 V
    • 11-µA operating quiescent current
  • TPS63806
    • Optimized for best load step response (180-mV load-step response at a 2 A current step)
    • Up to 2.5-A transient output current
    • 13-µA operating quiescent current
  • TPS63807
    • Optimized for smallest solution size of 18.5 mm2 (works with a 22-µF minimum output capacitor)
    • 2-A output current for VI ≥ 2.3 V, VO = 3.3 V
    • 11-µA operating quiescent current
    • Output discharge feature when EN is low
    • 480-µs Tramp for small inrush current during start-up

The TPS63805, TPS63806, and TPS63807 are high efficiency, high output current buck-boost converters. Depending on the input voltage, they automatically operate in boost, buck, or in a novel 4-cycle buck-boost mode when the input voltage is approximately equal to the output voltage.

The TPS63805, TPS63806, and TPS63807 are high efficiency, high output current buck-boost converters. Depending on the input voltage, they automatically operate in boost, buck, or in a novel 4-cycle buck-boost mode when the input voltage is approximately equal to the output voltage.

filter Find other AC/DC & DC/DC converters (integrated FET)
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Same functionality with different pin-out to the compared device
TPS631000 ACTIVE 1.5-A output current, high-power-density buck-boost converter TPS631000 is a newer version with 8-uA Iq and smaller SOT package
TPS63901 ACTIVE 5.5-V buck-boost converter with 75-nA operating IQ in WCSP package Ultra low IQ and smaller size

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 25
Type Title Date
* Data sheet TPS6380x High-Efficiency, Low IQ Buck-Boost Converter with Small Solution Size datasheet (Rev. E) PDF | HTML 26 Aug 2021
Application note 4스위치 벅 부스트 전력 단계의 기본 계산 (Rev. C) PDF | HTML 02 Oct 2023
Application note Using TPS63805 for Extreme Low Ripple in Optical Module PDF | HTML 27 Oct 2021
Design guide TEC Driver Reference Design for 3.3-V Inputs (Rev. A) 06 Aug 2021
Application note Different Methods to Drive LEDs Using TPS63XXX Buck-Boost Converters (Rev. D) 04 Aug 2021
Application note Supercapacitor Backup Power Supply w/ Current Limit for Smart Electricity Meter (Rev. A) 03 Aug 2021
Application note Selecting a DC/DC Converter for Maximum Battery Life in Pulsed-Load Applications (Rev. A) 26 Jul 2021
Application note A Topical Index of TI Low-Power Buck-Boost Converter Application Notes (Rev. A) PDF | HTML 09 Jun 2021
Application note Layer Design for Reducing Radiated EMI of DC to DC Buck-Boost Converters (Rev. A) PDF | HTML 09 Jun 2021
Technical article Is there a universal tool for DC/DC voltage conversion? PDF | HTML 30 Sep 2019
Application note Improving Load Transient Response for Controlled Loads 12 Sep 2019
Application note Using Non-Inverting Buck-Boost Converter for Voltage Stabilization 01 Aug 2019
Application brief Buck-boost Converter Battery Life Time Estimation for Wireless Network Cameras (Rev. A) 28 May 2019
Application brief Buck-Boost Converters Solving Power Challenges in Optical Modules 13 May 2019
Application brief Precise Delayed Start-up with Precise Threshold Enable-pin 15 Apr 2019
Application brief Prevent Battery Overdischarge with Precise Threshold Enable Pin 02 Apr 2019
Application note Selecting the right DC/DC converter for maximum battery life 08 Feb 2019
Application brief Supercapacitor backup power supply with TPS63802 21 Jan 2019
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 Dec 2018
Application note Understanding Undervoltage Lockout in Power Devices (Rev. A) 19 Sep 2018
Application note Basic Calculations of a 4 Switch Buck-Boost Power Stage (Rev. B) 09 Jul 2018
Application note Extending the Soft Start Time in the TPS63010 Buck-Boost Converter 05 Dec 2012
Analog Design Journal Design considerations for a resistive feedback divider in a DC/DC converter 26 Apr 2012
Application note Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs 19 Sep 2011
Analog Design Journal IQ: What it is, what it isn’t, and how to use it 17 Jun 2011

Design & development

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

Evaluation board

TPS63805EVM-026 — High Current, High Efficiency Buck-Boost Converter Evaluation Module

The TPS63805EVM-026 is designed to help the users easily evaluate and test the operation and functionality of the TPS63805 Buck-Boost Converter. The EVM operates from 1.3-V to 5.5-V input voltage. Output currents can go up to 2 A in buck mode and boost mode. The user can easily evaluate the (...)
User guide: PDF
Not available on TI.com
Support software

TIDCFU0 — TIDA-050017 TEC Driver Software Example

Supported products & hardware

Supported products & hardware

Products
AC/DC & DC/DC converters (integrated FET)
  • TPS63802 — 2-A, high-efficient, 11-µA quiescent current buck-boost converter in QFN/DFN package
  • TPS63805 — 2-A, high-efficient, 11-µA quiescent current buck-boost converter with tiny solution size
  • TPS63807 — 2A,11-uA quiescent current buck-boost converter
Download
Simulation model

TPS63805 Unencrypted PSpice Transient Model Package (Rev. B)

SLVMCQ6B.ZIP (50 KB) - PSpice Model
Download
Calculation tool

SLVC808 — Battery Lifetime Estimator

Supported products & hardware

Supported products & hardware

Products
AC/DC & DC/DC converters (integrated FET)
  • TPS63000 — High efficiency Buck-Boost Converter with 1.8A Current Switches in 3x3 QFN
  • TPS63000-Q1 — Automotive 1.8V to 5.5V Input Range, 1.8A High Efficiency Buck/Boost Converter
  • TPS63001 — 96% Buck-Boost Converter with 1.7A Current Switches, 3.3V fixed Output voltage in 3x3 QFN
  • TPS63002 — 96% Buck-Boost Converter with 1.7A Current Switches, 5V fixed Output voltage in 3x3 QFN
  • TPS63010 — High Efficient Single Inductor Buck-Boost Converter with 2-A Switches
  • TPS63011 — High Efficient Single Inductor Buck-Boost Converter with 2-A Switches
  • TPS63012 — High Efficient Single Inductor Buck-Boost Converter with 2-A Switches
  • TPS63020 — High Efficiency Single Inductor Buck-Boost Converter with 4A Switch
  • TPS63020-Q1 — High Efficiency Automotive Single Inductor Buck-Boost Converter with 4A Switch
  • TPS63021 — High Efficiency Single Inductor Buck-Boost Converter with 4A Switch
  • TPS63024 — High Efficiency 1.5A Single Inductor Buck-Boost Converter
  • TPS630241 — High Efficiency 1.5A Single Inductor Buck-Boost Converter
  • TPS630242 — High Efficiency 1.5A Single Inductor Buck-Boost Converter
  • TPS630250 — 4-A switch single-inductor buck-boost converter in 3.7 mm² DSBGA package
  • TPS630251 — 4A switch Single-Inductor Buck-Boost Converter in WCSP
  • TPS630252 — 4A switch Single-Inductor Buck-Boost Converter in WCSP
  • TPS63027 — High Efficiency 4.5A Switch Single-Inductor Buck-Boost Converter
  • TPS63030 — High Efficient Single Inductor Buck-Boost Converter with 1-A Switches
  • TPS63031 — High Efficient Single Inductor Buck-Boost Converter with 1-A Switches
  • TPS63036 — High Efficient Single Inductor Buck-Boost Converter with 1-A Switches
  • TPS63050 — TPS6305x Single Inductor Buck-Boost with 1-A Switches and Adjustable Soft Start
  • TPS63051 — Tiny Single Inductor Buck Boost Converter
  • TPS63060 — 2.5V to 12V input voltage, 93% Efficient, 2.25A Switch Current Limit, Buck-Boost Converter
  • TPS63060-EP — HIGH INPUT VOLTAGE BUCK-BOOST CONVERTER WITH 2-A SWITCH CURRENT
  • TPS63061 — 2.5V to 12V input voltage, 93% Efficient, 2.25A Switch Current Limit, Buck-Boost Converter
  • TPS63070 — Wide input voltage (2V-16V) buck-boost converter
  • TPS63700 — Adjustable, -15V Output Inverting DC/DC Converter in 3x3 QFN
  • TPS63710 — Low Noise, 1A Synchronous Inverting Buck Converter in 3x3 WSON Package
  • TPS63802 — 2-A, high-efficient, 11-µA quiescent current buck-boost converter in QFN/DFN package
  • TPS63805 — 2-A, high-efficient, 11-µA quiescent current buck-boost converter with tiny solution size
  • TPS63806 — 2.5-A high-efficient buck-boost converter with optimized load step response in tiny WCSP
  • TPS63807 — 2A,11-uA quiescent current buck-boost converter
  • TPS63810 — 2.5-A high-efficient buck-boost converter with I²C interface for dynamic voltage scaling
  • TPS63811 — 2.5-A high-efficient buck-boost converter with I²C interface for dynamic voltage scaling
  • TPS63900 — 1.8-V to 5.5-V, 75-nA IQ buck-boost converter with input current limit and Dynamic Voltage Scaling
Download
Reference designs

TIDA-050017 — TEC driver reference design for 3.3V inputs

Many electronic components require their temperature to be regulated for best performance and for longer operating life times. Precise temperature control down to 0.1°C is critical for certain applications such as laser diodes used in optical modules, where even a 1°C change in temperature (...)
Design guide: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
DSBGA (YFF) 15 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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
Information included:
  • Fab location
  • Assembly location

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