SP7652 SP7652 66AA 2288VV 660000KKHHzz SSyynncchhrroonnoouuss SStteepp DDoowwnn RReegguullaattoorr January 2020 Rev. 2.0.1 GENERAL DESCRIPTION APPLICATIONS The SP7652 is a synchronous voltage mode Distributed Power Architectures PWM step down (buck) regulator capable of a Point of Load Converters constant output current up to 6Amps. A wide 2.5V to 28V power input voltage range, with Power Supply Modules the required 5V biasing voltage, allows FPGAs, DSPs and Processors Supplies conversions from industry standard 5V, 12V, 18V and 24V power rails. FEATURES With a 600kHz constant operating frequency and integrated high and low side switch, the 6A Continuous Current SP7652 reduces the overall component count 2.5V-28V Power Input Voltage Rail and solution footprint. In addition to a 1% 5V Biasing voltage output setpoint accuracy, this device provides high efficiency, low ripple and excellent line 0.8V Min. Output Voltage 1% Accuracy and load regulation. An enable function and PWM Voltage Mode Control soft start feature allow for controlled power up 600kHz Fixed Synchronous Operations sequencing implementation. Low RDSON Power Switches Built-in Under voltage lockout (VLO) on both Greater than 92% Efficiency VCC and VIN, outputs short-circuit and over temperature protection insure safe operation Type II & III Compensations Support under abnormal operating conditions. Programmable Soft Start The SP7652 is offered in a RoHS compliant, UVLO on both V and V IN CC lead free 26-pin 7mmx4mm DFN package. Pre-biased Output Start-Up Over Temperature & Short Circuit Protection/Auto-Restart RoHS Compliant Lead Free 26-Pin DFN US Patent 6,922,041 TYPICAL APPLICATION DIAGRAM Fig. 1: SP7652 Application Diagram 1/15 Rev. 2.0.1 SP7652 SP7652 66AA 2288VV 660000KKHHzz SSyynncchhrroonnoouuss SStteepp DDoowwnn RReegguullaattoorr ABSOLUTE MAXIMUM RATINGS OPERATING RATINGS These are stress ratings only and functional operation of Input Voltage Range VCC .............................. 4.5V to 5.5V the device at these ratings or any other above those Input Voltage Range VIN .................................. 3V to 28V indicated in the operation sections of the specifications Junction Temperature Range ................. -40C to +125C below is not implied. Exposure to absolute maximum Thermal Resistance ........................................ 5C/W JC rating conditions for extended periods of time may affect Thermal Resistance JA ...................................... 36C/W reliability. V ........................................................................ 30V IN V ......................................................................... 7V CC ILX ........................................................................ 10A BST ...................................................................... 35V LX-BST ........................................................ -0.3V to 7V LX ............................................................... -1V to 30V All other pins ................................... -0.3V to (VCC+0.3)V Storage Temperature .............................. -65C to 150C Power Dissipation ................................ Internally Limited Lead Temperature (Soldering, 10 sec) ................... 300C ESD Rating (HBM - Human Body Model) ............. 2kV HBM ELECTRICAL SPECIFICATIONS Specifications with standard type are for an Operating Junction Temperature of TJ = TA = 25C only limits applying over the full Operating Junction Temperature range are denoted by a . Minimum and Maximum limits are guaranteed through test, design, or statistical correlation. Typical values represent the most likely parametric norm at T = T = 25C, and are J A provided for reference purposes only. Unless otherwise indicated, VCC = 4.5V to 5.5V, VIN = 3.0V to 28V, BST = LX + 5V, LX = GND = 0V, UVIN = 3V, CVCC = 1F, CCOMP = 0.1F, CSS = 50nF, TA= 40C to 85C, TJ = 40C to 125C. Parameter Min. Typ. Max. Units Conditions Quiescent Current V Supply Current (No CC 1.5 3 mA V = 0.9V FB Switching) V Supply Current (Switching) 11 15 mA CC BST Supply Current (No 0.2 0.4 mA V = 0.9V FB Switching) BST Supply Current (Switching) 8 12 mA Protection: UVLO VCC UVLO Start Threshold 4.00 4.25 4.5 v VCC UVLO Hysteresis 100 200 300 mV UVIN Start Threshold 2.5 2.65 V 2.3 UVIN Hysteresis 300 400 mV 200 UVIN Input Current 1 A UVIN = 3.0V Error Amplifier Reference 2x Gain Config., Measure V V =5V, FB CC Error Amplifier Reference 0.792 0.800 0.808 V T=25C Error Amplifier Reference Over 0.788 0.800 0.812 V Line and Temperature Error Amplifier 6 mA/V Transconductance Error Amplifier Gain 60 dB No Load COMP Sink Current 150 A V = 0.9V, COMP = 0.9V FB COMP Source Current 150 A V = 0.7V, COMP = 2.2V FB VFB Input Bias Current 50 200 nA VFB = 0.8V Internal Pole 4 MHz COMP Clamp 2.5 V V = 0.7V, T =25C FB A COMP Clamp Temp. Coefficient -2 mV/C 2/15 Rev. 2.0.1