TPS56300

TPS56300 DUALĆOUTPUT LOWĆINPUTĆVOLTAGE DSP POWER SUPPLY CONTROLLER WITH SEQUENCING SLVS261B − DECEMBER 1999 − SEPTEMBER 2000 D 2.8 V – 5.5 V Input Voltage Range D Programmable Dual Output Controller Supports Popular DSP and Microcontroller Core and I/O Voltages − Switching Regulator Controls Core Voltage − Low Dropout Controller Regulates I/O Voltage D Programmable Slow-Start Ensures Simultaneous Powerup of Both Outputs D Power Good Output Monitors Both Outputs D Fast Ripple Regulator Reduces Bulk Capacitance for Lower System Costs D ±1.5% Reference Voltage Tolerance D Efficiencies Greater than 90% D Overvoltage, Undervoltage, and Adjustable Overcurrent Protection D Drives Low-Cost Logic Level N-Channel MOSFETs Through Entire Input Voltage Range D Evaluation Module TPS56300EVM−139 Available VID0 VID1 SLOWST VHYST VREFB VSEN−RR ANAGND BIAS VLDODRV CPC1 VCC CPC2 VDRV DRVGND PWP PACKAGE (TOP VIEW) 1 28 2 27 3 26 4 25 5 24 6 Thermal 23 7 Pad 22 8 21 9 20 10 19 11 18 12 17 13 16 14 15 DROOP OCP IOUT PWRGD VSEN−LDO NGATE−LDO INHIBIT IOUTLO HISENSE LOSENSE/LOHIB HIGHDR BOOT BOOTLO LOWDR PowerPAD Package description The high performance TPS56300 synchronous-buck regulator provides two supply voltages to power the core and I/O of digital signal processors, such as the ‘C6000 family. The ripple regulator, using hysteretic control with droop compensation, is configured for the core voltage and features fast transient response time reducing output bulk capacitance (continued). typ...