TPS70175QPWPRQ1

TPS70175-Q1 www.ti.com SGLS300B – MARCH 2005 – REVISED SEPTEMBER 2010 DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATOR WITH POWER-UP SEQUENCING FOR SPLIT-VOLTAGE DSP SYSTEMS Check for Samples: TPS70175-Q1 FEATURES 1 • • 2 • • • • • • • • • • • • • • • Qualified for Automotive Applications Dual Output Voltages for Split-Supply Applications Selectable Power-Up Sequencing for DSP Applications Output Current Range of 500 mA on Regulator 1 and 250 mA on Regulator 2 Fast Transient Response Voltage Options: 5 V/2.5 V Open Drain Power-On Reset With 30-ms Delay Open Drain Power Good for Regulator 1 Ultra Low 190-mA (Typ) Quiescent Current 1-mA Input Current During Standby Low Noise = 65 mVRMS Without a 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 DESCRIPTION The TPS70175 is 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 TPS70175 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 TPS70175 voltage regulator offers 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 10-mF low ESR capacitors. This device has a fixed 5 V/2.5 V voltage option. Regulator 1 can support up to 500 mA and regulator 2 can support up to 250 mA. 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 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. 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 © 2005–2010, Texas Instruments Incorporated TPS70175-Q1 SGLS300B – MARCH 2005 – REVISED SEPTEMBER 2010 www.ti.com TPS70175 PWP 6V VIN1 0.1 µF 250 kΩ PG1 PG1 MR2 MR2 >2 V 2 V EN 250 kΩ RESET RESET EN MR1 I/O 10 µF VSENSE1 VIN2 DSP 5V VOUT1 MR1 >2 V 2 V 2 V