TPS70151PWPR

TPS70145, TPS70148 TPS70151, TPS70158 TPS70102 www.ti.com SLVS222I – DECEMBER 1999 – REVISED AUGUST 2010 Dual-Output Low Dropout Voltage Regulators with Power-Up Sequencing for Split-Voltage DSP Systems Check for Samples: TPS70145, TPS70148, TPS70151, TPS70158, TPS70102 FEATURES DESCRIPTION • TPS701xx 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 TPS701xx 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. 1 23 • • • • • • • • • • • • • • • Dual Output Voltages for Split-Supply Applications Selectable Power-Up Sequencing for DSP Applications Output Current Range of 500mA on Regulator 1 and 250mA 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 Ultra Low 190mA (typ) Quiescent Current 1mA Input Current During Standby Low Noise: 65mVRMS 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 The TPS701xx 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 10mF 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 500mA, and regulator 2 can support up to 250mA. 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 © 1999–2010, Texas Instruments Incorporated TPS70145, TPS70148 TPS70151, TPS70158 TPS70102 SLVS222I – DECEMBER 1999 – REVISED AUGUST 2010 www.ti.com TPS70151 PWP 5V VIN1 0.1 µF 3.3 V VOUT1 250 kΩ PG1 PG1 MR2 MR2 >2 V 2 V EN 250 kΩ RESET RESET EN MR1 I/O 10 µF VSENSE1 VIN2 DSP MR1 >2 V 2 V EN MR2 MR2 RESET RESET MR1 EN 2 V VSENSE2 2 V 0.7 V VSENSE2 2 V VSENSE2 2 V VSENSE2 2 V 5V >2 V 2 V