STMicroelectronics PM8903A
The PM8903A is a high efficiency monolithic stepdown switching regulator designed to deliver up to 3 A continuous current. The IC operates from 2.8 V to 6 V input voltage (VIN). The voltage mode control loop allows the widest range of output filters.| Part No. | PM8903A |
|---|---|
| Datasheet | PM8903A Download |
| Manufacturer |  STMicroelectronics |
| Description | 3A step-down monolithic switching regulator |
| Buy | Stock & Price |
FEATURES
● Integrated 35 mΩ MOSFETs for high efficiency● 3 A continuous output current
● 2.8 V to 6 V input voltage (VIN)
● 2.9 V to 5.5 V supply voltage (VCC)
● Adjustable output voltage down to 0.6 V
● 1% output voltage accuracy
● 1.1 MHz switching frequency operation
● PSKIP mode to optimize light load efficiency
● Embedded bootstrap diode
● Thermally compensated loss-less current sense across HS and LS MOSFETs
● OV/UV/OC and overtemperature protection
● Internal soft-start and soft-stop
● Interleaving synchronization (up to 2 ICs)
● Power Good output
● Shutdown function (< 15 µA quiescent current)
● VFQFPN16 3 x 3 mm compact package
APPLICATIONS
● Subsystem power supply● CPU, DSP and FPGA power supplies
● Distributed power supply
● General DC-DC converters
DESCRIPTION
Table 1. Device summary VFQFPN16 (3 x 3 mm) The PM8903A features low-resistance integrated nMOS and proprietary pulse-skipping mode for optimum efficiency over all the loading range. Current sense is internally thermally compensated for optimum precision.
