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TPS74012 Datasheet(PDF) 4 Page - Texas Instruments |
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TPS74012 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 26 page TPS740xx SBVS091C – JUNE 2011 – REVISED DECEMBER 2011 www.ti.com ELECTRICAL CHARACTERISTICS Over operating temperature range (TJ = –40°C to +125°C), VBIAS = VOUT + 2.0 V, VIN = VOUT + 1 V, COUT = 10 μF, following Recommended Resistor Values, and VEN = 1.1 V, unless otherwise noted. Typical values are at TJ = +25°C. TPS74001 (adjustable output voltage) is tested at VOUT = 0.9 V. TPS740xx PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIN Input voltage range 1.2 6.0 V VBIAS Bias pin voltage range 2.9 6.0 V TJ = 25°C –1 1 % VOUT Accuracy (1) TJ = –40°C to +125°C –2 2 % VOUT/VIN Line regulation VIN = VOUT + 1 V to 6.0 V –0.1 0.01 0.1 %/V VOUT/IOUT Load regulation ILOAD = 0 mA to 1.5 A (2) 1.5 % VIN dropout voltage (3) ILOAD = 1.5 A 100 300 mV VDO VBIAS dropout voltage (3) ILOAD = 1.5 A, VIN = VBIAS 1.3 1.6 V IGND Ground pin current (4) ILOAD = 1.5 A 2 3 mA Shutdown supply current Fixed output version only. VEN ≤ 0.4 V, ISHDN 1 5 μA (IGND) TJ = –40°C to +85°C, VOUT = 0 V IBIAS Bias pin current ILOAD = 1.5 A 2 mA ICL Current limit VOUT = 80% × VOUT (NOM) 1.6 6.0 A VEN, HI Enable input high level 1.1 6.0 V VEN, LO Enable input low level RLOAD = 1 kΩ to GND 0 0.4 V IEN Enable pin current VEN = 1.5 V 0.1 1 μA Operating junction TJ –40 +125 °C temperature Shutdown, temperature increasing +165 Thermal shutdown TSD °C temperature Reset, temperature decreasing +140 VREF Reference voltage 0.882 0.9 0.918 V (1) Adjustable output voltage devices: resistor tolerance is not taken into account. (2) With a fixed output device, this test condition is ILOAD = 50 mA to 1.5 A. (3) Dropout is defined as the voltage from the input voltage to VOUT when VOUT is 3% below nominal. (4) IGND(MAX) = 3 mA includes the maximum 2 mA of IBIAS. 4 Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated Product Folder Link(s): TPS740xx |
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