Battery charger ICs

For faster and cooler charging

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Shrink your design and overall solution size with the industry’s broadest portfolio of power-dense battery charger ICs that support any input source and any charging topology (buck, buck-boost, boost and linear). Our chargers come with multiple low-power modes to help maximize battery runtime and stand-by time for the maximum charge and a battery that’s instantly ready for use.

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Find your battery charger IC

BQ25622 NEW

I²C controlled one-cell 3.5-A buck battery charger with 18-V max input, current limit, ADC and OTG

Approx. price (USD) 1ku | 1.46
BQ25176M NEW

800-mA linear battery charger for one-cell Li-ion and LiFePO4 with VINDPM

Approx. price (USD) 1ku | 0.59
BQ25620 NEW

I²C controlled 1-cell 3.5-A buck battery charger with 18-V max input, integrated ADC and OTG output

Approx. price (USD) 1ku | 1.46
BQ25172 NEW

0.8-A, one- to six-cell NiMH stand-alone linear charger in a QFN package

Approx. price (USD) 1ku | 0.588
BQ25181 NEW

I²C programmable, 1-A, 1-cell, Li-ion linear battery charger with power path in a QFN package

Approx. price (USD) 1ku | 1.176
BQ25180 NEW

1-A Li-ion and LiFePO4 I²C programmable linear charger with regulated power path, WCSP package

Approx. price (USD) 1ku | 0.89

Power trends

Battery charger ICs for power density

Deliver faster charging and shrink your design with our portfolio of high-efficiency switching charger ICs. Our fast-paced life demands that more power is delivered faster and conveniently. We are committed to helping you meet the demand for faster charging without overheating. To reduce heat generation, our chargers combine high-charging current with high-charging efficiency, up to 97%. Chip integration supports maximum power delivery while reducing the overall solution size and cost. 

Featured products for power density
BQ25798 ACTIVE I²C controlled, 1-4-cell, 5-A buck-boost solar battery charger with dual-input selector and MPPT
BQ25790 ACTIVE Integrated, NVDC, 5-A 1-cell to 4-cell switch-mode buck-boost battery charger
BQ25960 ACTIVE I2C controlled 1-cell 8-A switched cap parallel battery charger with bypass and dual-input selector

Battery charger ICs for low quiescent current (IQ)

Achieve the longest battery run time and lower system cost with our portfolio of integrated switching and linear chargers. Preserve battery life and extend the shelf-life of ready-to-use devices with industry-leading low-standby and ship-mode IQ to minimize current draw in battery-only mode. Low termination current for maximum charge benefits medical and personal electronics applications, such as hearing aids, earbuds and true-wireless stereo (TWS) charging cases.

Featured products for low quiescent current
NEW BQ25180 ACTIVE 1-A Li-ion and LiFePO4 I²C programmable linear charger with regulated power path, WCSP package
BQ25125 ACTIVE Low IQ highly integrated battery charge management solution for wearables and IoT
BQ25619 ACTIVE I2C controlled 1.5-A single cell buck battery charger with 20-mA termination and 1-A boost

Technical resources

Video series
Video series
Battery chargers: Fundamentals
Learn about basic concepts of designing with battery chargers. 
Video series
Video series
Battery chargers: Pick your application
Select the right charger specific for your application.
Analog Design Journal
Analog Design Journal
A comparison of battery-charger topologies for portable applications
This article provides an overview of battery-charger topologies.
document-pdfAcrobat PDF

Discover featured applications

Infotainment & cluster
Enable safe, efficient battery charging in automotive applications with our battery charger technology
Medical
Increase power density and overall battery and system protection in medical applications with our battery charger technology
Garden & power tools
Enable safe, efficient battery charging in garden and power tool applications with our battery charger technology

Enable safe, efficient battery charging in automotive applications with our battery charger technology

Benefits:

  • Main car battery can be connected directly to battery charger due to wide input voltage range up to 40 V 
  • Minimize current draw from the main car battery in standby mode with low quiescent input current of 2 μA
  • Support different automotive applications using a single, automotive qualified charger with customizable battery chemistries, charge voltage and charge current

Featured resources

REFERENCE DESIGNS
  • PMP30963 – Backup battery reference design with preboost, charger and 1S Li-ion fuel gauge
PRODUCTS
  • BQ25171-Q1 – Automotive, 800-mA linear battery charger for 1- to 2-cell Li-ion, LiFePO4, and 1- to 6-cell NiMH
  • BQ25173 – 800-mA linear charger for 1-cell to 4-cell supercapacitor
  • BQ25180 – 1-A Li-ion and LiFePO4 I²C programmable linear charger with regulated power path, WCSP package
HARDWARE DEVELOPMENT
  • BQ25171EVM – BQ25171 evaluation module 800-mA linear battery charger for 1-2-cell Li-ion, LiFePO4, 1-6-cell NiMH
  • BQ25173EVM – BQ25173 evaluation module 800-mA linear charger for 1-cell to 4-cell super capacitor
  • BQ25180EVM – BQ25180 evaluation module for 1-A, Li-ion I2C-programmable power-path charger

Increase power density and overall battery and system protection in medical applications with our battery charger technology

Benefits:

  • Provides overall input and output over / under voltage and current protection in safety critical applications  
  • Supports multi-battery chemistires (Li+, NiMH, Pb, SuperCap) and multi-cell configurations (1 to 6 cells) for many different overall system requirements
  • Supports backup functionality for seamless transition in case of main power failure

Featured resources

PRODUCTS
  • BQ24610 – Standalone 1-6 cell Buck battery charge controller with 5V-28V input
  • BQ25720 – SMBus 1- to 4-cell NVDC buck-boost battery charge controller with power path and USB-C® PD OTG
  • BQ25798 – I²C controlled, 1-4-cell, 5-A buck-boost solar battery charger with dual-input selector and MPPT
HARDWARE DEVELOPMENT
  • BQ24610EVM – Evaluation Module for BQ24610 Multi Cell Synchronous Switch-Mode Battery Charger
  • BQ25720EVM – BQ25720 evaluation module SMBus, 1- to 4-cell, 8-A, NVDC buck-boost battery charger controller
  • BQ25798EVM – BQ25798 evaluation module I²C controlled, 1- to 4-cell, 5-A buck-boost charger, dual input and MPPT
TECHNICAL RESOURCES

Enable safe, efficient battery charging in garden and power tool applications with our battery charger technology

Benefits:

  • Supports universal charging to utilize entire USB Type-C® / powered devices (PD)  voltage / current spectrum (20 V / 5 A) with efficiency greater than 98%
  • Provides protection against motor kickback transients with high VBAT tolerance 
  • Supports multi-cell with linear, buck, boost and buck-boost charging topologies
  • Supports standalone as well host-controlled interface to achieve desired charging as well as powering the system 

Featured resources

REFERENCE DESIGNS
  • PMP22805 – 24-VIN, 240-W, 98% efficient, compact 5S battery charger with USB On-The-Go (OTG) reference design
PRODUCTS
  • BQ25731 – I2C 1-5 cell NVDC buck-boost battery charge controller with USB type-C PD support
  • BQ25306 – Standalone 17-V, 3A 1-2 cell buck battery charger
  • BQ25170 – 800-mA linear battery charger for 1-cell Li-ion and LiFePO4
HARDWARE DEVELOPMENT
  • BQ25731EVM – I2C NVDC 1 to 5 cell, 16-A, buck-boost charger controller evaluation module
  • BQ25306EVM – Highly integrated standalone 17-V, 1S/2S, 3-A buck battery charger evaluation module
  • BQ25170EVM – BQ25170 evaluation module 800-mA linear battery charger for single cell Li-ion, Li-pol and LiFePO4

Reference designs related to Battery charger ICs

Use our reference design selection tool to find designs that best match your application and parameters.