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TPS70448

Texas Instruments
Part Number TPS70448
Manufacturer Texas Instruments
Description DUAL-OUTPUT LOW DROPOUT VOLTAGE REGULATORS
Published Oct 18, 2019
Detailed Description www.ti.com TPS70445, TPS70448 TPS70451, TPS70458 TPS70402 SLVS307F – SEPTEMBER 2000 – REVISED APRIL 2010 DUAL-OUTPUT, L...
Datasheet PDF File TPS70448 PDF File

TPS70448
TPS70448


Overview
www.
ti.
com TPS70445, TPS70448 TPS70451, TPS70458 TPS70402 SLVS307F – SEPTEMBER 2000 – REVISED APRIL 2010 DUAL-OUTPUT, LOW DROPOUT VOLTAGE REGULATORS WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS Check for Samples: TPS70445, TPS70448, TPS70451, TPS70458, TPS70402 FEATURES 1 •23 Dual Output Voltages for Split-Supply Applications • Independent Enable Functions (See Part Number TPS703xx for Sequenced Outputs) • Output Current Range of 1 A on Regulator 1 and 2 A on Regulator 2 • Fast Transient Response • Voltage Options: 3.
3-V/2.
5-V, 3.
3-V/1.
8-V, 3.
3-V/1.
5-V, 3.
3-V/1.
2-V, and Dual Adjustable Outputs • Open Drain Power-On Reset with 120-ms Delay • Open Drain Power Good for Regulator 1 and Regulator 2 • Ultralow 185mA (typ) Quiescent Current • 2mA Input Current During Standby • Low Noise: 78mVRMS Without Bypass Capacitor • Quick Output Capacitor Discharge Feature • One Manual Reset Input • 2% Accuracy Over Load and Temperature • Undervoltage Lockout (UVLO) Feature • 24-Pin PowerPAD™ TSSOP Package • Thermal Shutdown Protection DESCRIPTION The TPS704xx family of devices consists of dual-output, low-dropout voltage regulators with integrated SVS (RESET, POR, or power on reset) and power good (PG) functions.
These devices are capable of supplying 1 A and 2 A by regulator 1 and regulator 2 respectively.
Quiescent current is typically 185 mA at full load.
Differentiated features, such as accuracy, fast transient response, SVS supervisory circuit (power on reset), manual reset input, and independent enable functions provide a complete system solution.
PWP PACKAGE (TOP VIEW) GND/HEATSINK VIN1 VIN1 NC MR EN1 EN2 RESET GND VIN2 VIN2 GND/HEATSINK 1 2 3 4 5 6 7 8 9 10 11 12 24 GND/HEATSINK 23 VOUT1 22 VOUT1 21 VSENSE1/FB1 20 NC 19 PG1 18 PG2 17 NC 16 VSENSE2/FB2 15 VOUT2 14 VOUT2 13 GND/HEATSINK NC = No internal connection 5V >2 V <0.
7 V >2 V <0.
7 V TPS70451 PWP VIN1 VOUT1 0.
22 mF VSENSE1 VIN2 0.
22 mF PG1 MR RESET EN1 EN1 EN2 EN2 PG2 VSENSE2 VOUT2 3.
3 V 22 mF 250 k...


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