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TPS63901

ACTIVE

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

Product details

Topology Buck-Boost Vin (Min) (V) 1.8 Vin (Max) (V) 5.5 Vout (Max) (V) 5 Vout (Min) (V) 1.8 Duty cycle (Max) (%) 99 Features Adjustable Current Limit, Dynamic Voltage Scaling, Enable, Light Load Efficiency, Pre-Bias Start-Up, UVLO Fixed Switch current limit (Typ) (A) 1.45 Switching frequency (Min) (kHz) 0.004 Switching frequency (Max) (kHz) 2000 Iq (Typ) (mA) 0.000075 Iout (Max) (A) 1 Rating Catalog
Topology Buck-Boost Vin (Min) (V) 1.8 Vin (Max) (V) 5.5 Vout (Max) (V) 5 Vout (Min) (V) 1.8 Duty cycle (Max) (%) 99 Features Adjustable Current Limit, Dynamic Voltage Scaling, Enable, Light Load Efficiency, Pre-Bias Start-Up, UVLO Fixed Switch current limit (Typ) (A) 1.45 Switching frequency (Min) (kHz) 0.004 Switching frequency (Max) (kHz) 2000 Iq (Typ) (mA) 0.000075 Iout (Max) (A) 1 Rating Catalog
DSBGA (YCJ) 12
  • 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

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Type Title Date
* Data sheet TPS63901 1.8-V to 5.5-V, 75-nA IQ Buck-Boost Converter with Input Current Limit and DVS in a WCSP Package datasheet (Rev. A) PDF | HTML 17 Jun 2022
User guide TPS63901 Evaluation Module User's Guide PDF | HTML 24 Nov 2021
Certificate TPS63901EVM EU RoHS Declaration of Conformity (DoC) 23 Nov 2021
Application note 75-nA IQ Buck-Boost Converter in Parallel for Increased Output Current (≥ 2 A) 14 Oct 2020
Technical article 5 best practices to extend battery life in flow meters 28 Aug 2020
Application note How to Extend Operating Time of a LiSOCl2 Powered System PDF | HTML 06 Aug 2020
Application note How to Implement Multi-Level Dynamic Voltage Scaling With TPS63900 PDF | HTML 06 Aug 2020
Application note Using Input Current Limiting to Extend Battery Life 28 Apr 2020

Design & development

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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 (...)

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DSBGA (YCJ) 12 View options

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