TPS70702PWPR

TPS70745, TPS70748 TPS70751, TPS70758 TPS70702 www.ti.com SLVS291D – MAY 2000 – REVISED DECEMBER 2007 Dual-Output, Low Dropout Voltage Regulators with Power-Up Sequencing for Split-Voltage DSP Systems FEATURES 1 • Dual Output Voltages for Split-Supply Applications • Selectable Power-Up Sequencing for DSP Applications (See Part Number TPS708xx for Independent Enable Outputs) • Output Current Range of 250mA on Regulator 1 and 125mA on Regulator 2 • Fast Transient Response • Voltage Options: 3.3V/2.5V, 3.3V/1.8V, 3.3V/1.5V, 3.3V/1.2V, and Dual Adjustable Outputs • Open Drain Power-On Reset with 120ms Delay • Open Drain Power Good for Regulator 1 • Ultralow 190µA (typ) Quiescent Current • 1µA Input Current During Standby • Low Noise: 65µVRMS Without Bypass Capacitor • Quick Output Capacitor Discharge Feature • Two Manual Reset Inputs • 2% Accuracy Over Load and Temperature • Undervoltage Lockout (UVLO) Feature • 20-Pin PowerPAD™ TSSOP Package • Thermal Shutdown Protection 23 DESCRIPTION TPS707xx family devices are designed to provide a complete power management solution for the TMS320™ DSP family, processor power, ASIC, FPGA, and digital applications where dual output voltage regulators are required. Easy programmability of the sequencing function makes the TPS707xx family ideal for any TMS320 DSP applications with power sequencing requirements. Differentiated features, such as accuracy, fast transient response, SVS supervisory circuit, manual reset inputs, and an enable function, provide a complete system solution. The TPS707xx family of voltage regulators offer very low dropout voltage and dual outputs with power-up sequence control, which is designed primarily for DSP applications. These devices have extremely low noise output performance without using any added filter bypass capacitors and are designed to have a fast transient response and be stable with 10µF low ESR capacitors. These devices have fixed 3.3V/2.5V, 3.3V/1.8V, 3.3V/1.5V, 3.3V/1.2V, and adjustable/adjustable voltage options. Regulator 1 can support up to 250mA, and regulator 2 can support up to 125mA. Separate voltage inputs allow the designer to configure the source power. PWP PACKAGE (TOP VIEW) NC VIN1 VIN1 MR1 MR2 EN SEQ GND VIN2 VIN2 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 NC VOUT1 VOUT1 VSENSE1/FB1 PG1 RESET VSENSE2/FB2 VOUT2 VOUT2 NC 1 2 3 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PowerPAD, TMS320 are trademarks of Texas Instruments. All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2000–2007, Texas Instruments Incorporated TPS70745, TPS70748 TPS70751, TPS70758 TPS70702 www.ti.com SLVS291D – MAY 2000 – REVISED DECEMBER 2007 TPS70751 PWP 5V VIN1 0.1 mF 3.3 V VOUT1 250 kW PG1 PG1 MR2 MR2 >2 V 2 V EN 250 kW RESET RESET EN MR1 I/O 10 mF VSENSE1 VIN2 DSP MR1 >2 V 2 V 2 V VSENSE2 2 V 0.7 V VSENSE2 2 V VSENSE2 2 V VSENSE2 2 V 5V >2 V 2 V