SP7652ER_TR

The SP7652ER_TR is one member of the SP7652 series.The SP7652 is a synchronous step-down switching regulator  optimized for high efficiency.The part is designed to be especially attractive for dual supply, 12V step down with 5V used to power the controller.This lower VCC voltage minimizes power dissipation in the part. The SP7652 is designed to provide a fully integrated buck regulator solution using a fixed 600kHz frequency, PWM voltage mode architecture. Protection features include UVLO, thermal shutdown and output short circuit protection. The SP7652 is available in the space saving DFN package.

Features of the SP7652ER_TR are:(1)2.5V to 28V step down achieved using dual input; (2)output voltage down to 0.8V; (3)6A output capability; (4)built in low RDSON power switches (15 m typ); (5)highly integrated design, minimal components; (6)600 kHz fixed frequency operation; (7)UVLO detects both Vcc and Vin; (8)over temperature protection; (9)short circuit protection with auto-restart; (10)wide BW amp allows type II or III compensation; (11)programmable soft start; (12)fast transient response; (13)high efficiency: greater than 92% possible; (14)asynchronous start-up into a pre-charged output; (15)small 7mm x 4mm DFN package.

The absolute maximum ratings of the SP7652ER_TR can be summarized as:(1)Vcc:7V;(2)Vin:30V;(3)BST:35V;(4)power dissipation:internally limited;(5)lead temperature range:300;(6)storage temperature:-65 to 150.These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability.A short-circuit detection comparator has also been included in the SP7652 to protect against an accidental short at the output of the power converter. This comparator constantly monitors the positive and negative terminals of the error amplifier, and if the VFB pin falls more than 250mV (typical) below the positive reference, a short-circuit fault is set. Because the SS pin overrides the internal 0.8V reference during soft start, the SP7652 is capable of detecting short-circuit faults throughout the duration of soft-start as well as in regular operation.