Multi-cell buck-boost battery charger system reference design for USB PD PPS


Design files


This reference design is for USB Power Delivery (PD) battery charging applications, such as power banks or other portable devices. It employs the Buck-Boost charger BQ25713 for a wide input and output range for USB PD charging. The USB PD controller card (PMP40442) can configure the charger to run both charging or OTG via the same power path. The PMP40441/2 is compatible with PD2.0. It also demonstrates BQ25713’s capability to support PD’s Programmable Power Supply (PPS) standard. In the OTG direction (i.e. the power bank as a power source), the USB port can output a fixed USB PD voltage – 5/9/15/20 V and USB PD PPS voltage from 3.3 V to 5.9/11/21 V with smaller than 20 mV step. A USB-A port is also included as a dedicated OTG source.

  • Bidirectional buck-boost operation, supports PD DRP sink and source ode
  • Supports PD up to 45 W
  • Four voltage set 5/9/15/20 V supported
  • PD PPS from 3-5.9/11/21 V with 20 mV step supported
Output voltage options PMP40441.1
Vin (Min) (V) 4.5
Vin (Max) (V) 21
Vout (Nom) (V) 12.6
Iout (Max) (A) 4
Output Power (W) 50.4
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Buck Boost- 4 Switch
Personal electronics
?? View video with transcript Video

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDT038.PDF (2825 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more


Detailed schematic diagram for design layout and components


Complete listing of design components, reference designators, and manufacturers/part numbers


Detailed overview of design layout for component placement

TIDRXR1.ZIP (1669 K)

Files used for 3D models or 2D drawings of IC components

TIDCF12.ZIP (1529 K)

Design file that contains information on physical board layer of design PCB

TIDRXR0.PDF (2156 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

AC/DC & DC/DC converters (integrated FET)

TLV621303-17V 3A Step-Down Converter in 3x3 QFN Package

Data sheet: PDF | HTML
Application-specific port protection ICs

TPD6S300USB Type-C™ port protector: short-to-VBUS overvoltage and 6-ch ESD protection

Data sheet: PDF | HTML
Battery charger ICs

BQ25713I2C 1-4 cell NVDC Buck-Boost battery charge controller with USB type C PD support

Data sheet: PDF | HTML
Battery protectors

BQ779153-series to 5-series stackable ultra-low-power primary protector with autonomous cell balancing

Data sheet: PDF | HTML
ESD protection diodes

TPD2E1B06Dual 1-pF, ±5.5-V, ±10-kV ESD protection diode with ESD rating for USB 2.0

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TPS709150-mA, 30-V, ultra-low-IQ, low-dropout voltage regulator with reverse current protection and enable

Data sheet: PDF | HTML

CSD16323Q325-V, N channel NexFET™ power MOSFET, single SON 3 mm x 3 mm, 5.5 mOhm

Data sheet: PDF | HTML

CSD17308Q330-V, N channel NexFET™ power MOSFET, single SON 3 mm x 3 mm, 11.8 mOhm

Data sheet: PDF | HTML

CSD25404Q3-20-V, P channel NexFET™ power MOSFET, single SON 3 mm x 3 mm, 6.5 mOhm

Data sheet: PDF | HTML
MSP430 microcontrollers

MSP430FR594916 MHz MCU with 64KB FRAM, 2KB SRAM, AES, 12-bit ADC, comparator, DMA, UART/SPI/I2C, timer

Data sheet: PDF | HTML
USB hubs & controllers

TUSB422USB PD TCPCi Port Controller

Data sheet: PDF | HTML
USB power switches & charging port controllers

TPS2514AUSB dedicated charging port controller - Gen 2

Data sheet: PDF | HTML

Technical documentation

= Top documentation selected by TI
No results found. Please clear your search and try again.
View all 1
Type Title Date
* Test report Multi-Cell Buck-Boost Battery Charger System Reference Design for USB PD PPS Nov. 19, 2018

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. ​​​​​​​​