TPS63900

ACTIVE

1.8-V to 5.5-V, 75-nA IQ buck-boost converter with input current limit and Dynamic Voltage Scaling

Product details

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck-Boost Type Converter Vin (min) (V) 1.8 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 0.004 Switching frequency (max) (kHz) 2000 Features Adjustable current limit, Dynamic Voltage Scaling, Enable, Light Load Efficiency, Pre-Bias Start-Up, Synchronous Rectification, UVLO Fixed Vout (min) (V) 1.8 Vout (max) (V) 5 Iq (typ) (µA) 0.075 Duty cycle (max) (%) 99 Switch current limit (typ) (A) 1.45
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck-Boost Type Converter Vin (min) (V) 1.8 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 0.004 Switching frequency (max) (kHz) 2000 Features Adjustable current limit, Dynamic Voltage Scaling, Enable, Light Load Efficiency, Pre-Bias Start-Up, Synchronous Rectification, UVLO Fixed Vout (min) (V) 1.8 Vout (max) (V) 5 Iq (typ) (µA) 0.075 Duty cycle (max) (%) 99 Switch current limit (typ) (A) 1.45
WSON (DSK) 10 6.25 mm² 2.5 x 2.5
  • Input voltage range: 1.8 V to 5.5 V
  • Output voltage range: 1.8 V to 5 V (100-mV steps)
    • Programmable with external resistors
    • SEL pin to toggle between two output voltage presets
  • > 400-mA output current for VI ≥ 2.0 V, VO = 3.3 V (typical 1.45-A peak switching current limit)
    • Stackable: parallel multiple devices for higher output current
  • > 90% Efficiency at 10-µA load current
    • 75-nA quiescent current
    • 60-nA shutdown current
  • Single-mode operation
    • Eliminates mode transitions between buck, buck-boost and boost operation
    • Low output ripple
    • Excellent transient performance
  • Safety and robust operation features
    • Integrated soft start
    • Programmable input current limit with eight settings (1 mA to 100 mA and unlimited)
    • Output short-circuit and overtemperature protection
  • Tiny solution size of 21-mm2
    • Small 2.2-µH inductor, single 22-µF output capacitor
    • 10-Pin, 2.5-mm × 2.5-mm, 0.5-mm pitch WSON package
  • Input voltage range: 1.8 V to 5.5 V
  • Output voltage range: 1.8 V to 5 V (100-mV steps)
    • Programmable with external resistors
    • SEL pin to toggle between two output voltage presets
  • > 400-mA output current for VI ≥ 2.0 V, VO = 3.3 V (typical 1.45-A peak switching current limit)
    • Stackable: parallel multiple devices for higher output current
  • > 90% Efficiency at 10-µA load current
    • 75-nA quiescent current
    • 60-nA shutdown current
  • Single-mode operation
    • Eliminates mode transitions between buck, buck-boost and boost operation
    • Low output ripple
    • Excellent transient performance
  • Safety and robust operation features
    • Integrated soft start
    • Programmable input current limit with eight settings (1 mA to 100 mA and unlimited)
    • Output short-circuit and overtemperature protection
  • Tiny solution size of 21-mm2
    • Small 2.2-µH inductor, single 22-µF output capacitor
    • 10-Pin, 2.5-mm × 2.5-mm, 0.5-mm pitch WSON package

The TPS63900 device is a high-efficiency synchronous buck-boost converter with an extremely low quiescent current (75 nA typical). The device has 32 user-programmable output voltage settings from 1.8 V to 5 V.

A dynamic voltage-scaling feature lets applications switch between two output voltages during operation; for example, to save power by using a lower system supply voltage during standby operation.

With its wide supply voltage range and programmable input current limit (1 mA to 100 mA and unlimited), the device is ideal for use with a wide range of primary like 3S Alkaline, 1S Li-MnO2 or 1S Li-SOCl2, and secondary battery types.

The high-output current capability supports commonly-used RF standards like sub-1-GHz, BLE, LoRa, wM-Bus, and NB-IoT.

The TPS63900 device is a high-efficiency synchronous buck-boost converter with an extremely low quiescent current (75 nA typical). The device has 32 user-programmable output voltage settings from 1.8 V to 5 V.

A dynamic voltage-scaling feature lets applications switch between two output voltages during operation; for example, to save power by using a lower system supply voltage during standby operation.

With its wide supply voltage range and programmable input current limit (1 mA to 100 mA and unlimited), the device is ideal for use with a wide range of primary like 3S Alkaline, 1S Li-MnO2 or 1S Li-SOCl2, and secondary battery types.

The high-output current capability supports commonly-used RF standards like sub-1-GHz, BLE, LoRa, wM-Bus, and NB-IoT.

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Design & development

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

Evaluation board

TPS63900EVM — TPS63900 evaluation module for low Iq buck-boost converter

The TPS63900EVM is designed to help the users easily evaluate and test the operation and functionality of the TPS63900 buck-boost converter. The EVM operates from 1.8V to 5.5V input voltage. Output currents can go up to 400 mA in buck mode and boost mode. The user can easily evaluate the different (...)

User guide: PDF | HTML
Not available on TI.com
Simulation model

TPS63900 PSpice Transient Model (Rev. A)

SLVMDC0A.ZIP (103 KB) - PSpice Model
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
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Package Pins CAD symbols, footprints & 3D models
WSON (DSK) 10 Ultra Librarian

Ordering & quality

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