XR77103-MoCA Datasheet | MaxLinear

Description The XR77103-Mo CA PMIC is designed to power Max Linear’s Mo CA chipsets, the Mo CA 2.0 Mx L370x and Mo CA 2.5 Mx L371x along with a single port ethernet PHY such as the GPY241. It features 3 high-efficiency synchronous buck regulators with integrated power switches and sequencing engine to provide the 0.9V, 1.8V, and 3.3V rails of the Mo CA So C. The 0.9V core rail is capable of supplying the 3A peaks demanded by the So C(1) and is patible with the So C DVS control. The XR77103-Mo CA can operate from 5V, 9V, and 12V powered systems with minimal required external ponents, and packaged in a 4x4mm QGN that provides the smallest size solution possible. With a nominal switching frequency of 560k Hz, the regulators can also be synchronized to an external clock in applications where EMI control is critical. An internal supervisor circuit monitors each converter output and asserts PGOOD once sequencing is done, outputs are reported in regulation, and the reset timer expires. The polarity of the signal is active high. FEATURES - 4.5V to 14V wide input supply voltage range - Built-in MOSFET and synchronous rectifier - High accuracy 0.9V reference (1%) - Current-mode control with simple pensation circuit - External synchronization - Power good - Protection … Thermal shutdown … Overvoltage transient protection … Overcurrent protection - 32-pin 4mm x 4mm TQFN package APPLICATIONS - Max Linear Mo CA 2.0 Mx L370x power - Max Linear Mo CA 2.5 Mx L371x power 1. Worst case supply condition at 0.9V power rails around 1ms. Ordering Information - back page Figure 1. Power Solution for Mo CA Coaxial Networking IC Typical Application XR77103-Mo CA VCC tied to VIN for 5VIN operation PGOOD 28 VIN Start-up BGR 46 VIN VCC Internal Supply 24 PGOOD PGOOD SYNC 25 VIN = 4.5 to 14V VOUT3 = 3.3V 10 VIN1 VIN2 15 VIN3 32 BST3 30 LX3 29 LX3 VFB3 1 2...