TPS63901

ACTIVE

5.5-V buck-boost converter with 75-nA operating IQ in WCSP package

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
DSBGA (YCJ) 12 1.471168 mm² 1.448 x 1.016
  • 1.8-V to 5.5-V input voltage range
  • 1.8-V to 5-V output voltage range (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
    • 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
  • 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
    • Small 2.2-µH inductor, single 22-µF output capacitor
    • 12-ball, 1.5-mm × 1.15-mm, 0.35-mm pitch WCSP package
  • 1.8-V to 5.5-V input voltage range
  • 1.8-V to 5-V output voltage range (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
    • 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
  • 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
    • Small 2.2-µH inductor, single 22-µF output capacitor
    • 12-ball, 1.5-mm × 1.15-mm, 0.35-mm pitch WCSP package

The TPS63901 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 TPS63901 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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Technical documentation

Design & development

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

Evaluation board

TPS63901EVM — TPS63901 evaluation module for buck-boost converter with input current limit and DVS

The TPS63901 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.

The TPS63901EVM-100 is designed to help the users easily evaluate and test the operation (...)

User guide: PDF | HTML
Not available on TI.com
Support software

TIDA-010224-WCM-SW TIDA-010224 Software

Supported products & hardware

Supported products & hardware

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TPS63901 5.5-V buck-boost converter with 75-nA operating IQ in WCSP package
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DSBGA (YCJ) 12 Ultra Librarian

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