High Efficiency, Synchronous, 3.5A Buck-Boost
Converter with Four Integrated MOSFET
PQ8724
PQ8724 is a synchronous 4-switch buck-boost converter with four integrated switches. It provides excellent power efficiency and voltage regulation no matter the output voltage is higher, lower, or equal to the input voltage. PQ8724 supports a very wide input and output voltage range. It can support applications from 2.7V to 22V input range and 3V to 22V output range and provides up to 3.5A output current. PQ8724 employs average current-mode control. The output voltage is adjusted by FB pin with resistors. The switching mode (PSM/FPWM) and the switching frequency can be adjusted by the external setting. The device also provides a programmable output current limit which supports flexible design for different applications. PQ8724 supports internal current limit, input under-voltage protection, output over-voltage protection, output short protection, FB short circuit protection, and over-temperature protection to ensure safety under different abnormal conditions. The IC is in a 25 pin 4x4 QFN package.
PQ8724 is a synchronous 4-switch buck-boost converter with four integrated switches. It provides excellent power efficiency and voltage regulation no matter the output voltage is higher, lower, or equal to the input voltage. PQ8724 supports a very wide input and output voltage range. It can support applications from 2.7V to 22V input range and 3V to 22V output range and provides up to 3.5A output current. PQ8724 employs average current-mode control. The output voltage is adjusted by FB pin with resistors. The switching mode (PSM/FPWM) and the switching frequency can be adjusted by the external setting. The device also provides a programmable output current limit which supports flexible design for different applications. PQ8724 supports internal current limit, input under-voltage protection, output over-voltage protection, output short protection, FB short circuit protection, and over-temperature protection to ensure safety under different abnormal conditions. The IC is in a 25 pin 4x4 QFN package.
Product Details
Design / Development
Technical Documentation
Applications
Product Details
Technical Documentation
Parameter NameParameter Value
VIN range2.7-22V
Abs. VIN (max)25V
VOUT range3-22V
Iout(Max)3.5A
MOSint.
fsw250kHz ~ 1MHz
Parameter NameParameter Value
Prog. VoutFB
Constant Current Mode√
PFM√
FPWM√
FeaturesNo External Current Sense Resistors; Enhanced Package for Better Thermal Dissipation
PackageQFN 4x4
Parameter NameParameter Value
VIN range2.7-22V
Abs. VIN (max)25V
VOUT range3-22V
Iout(Max)3.5A
MOSint.
fsw250kHz ~ 1MHz
Prog. VoutFB
Constant Current Mode√
PFM√
FPWM√
FeaturesNo External Current Sense Resistors; Enhanced Package for Better Thermal Dissipation
