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TPS728330185DRVT Datasheet(PDF) 3 Page - Texas Instruments |
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TPS728330185DRVT Datasheet(HTML) 3 Page - Texas Instruments |
3 / 26 page www.ti.com ELECTRICAL CHARACTERISTICS TPS728xx Series SBVS095 – AUGUST 2007 Over operating temperature range (TJ = –40°C to +125°C), VIN = VOUT(TYP) + 0.5V or 2.7V, whichever is greater; IOUT = 0.5mA, VSET = VEN = VIN, COUT = 1.0μF, unless otherwise noted. Typical values are at TJ = +25°C. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIN Input voltage range 2.7 6.5 V Nominal TJ = +25°C, VSET = high/low –2.5 +2.5 mV VOUT (1) DC output accuracy Over VIN, IOUT, VOUT + 0.5V ≤ VIN ≤ 6.5V, –3.0 +3.0 % temperature 0mA ≤ IOUT ≤ 200mA, VSET = high/low 100 μA to 200mA in 1μs, ΔVOUT Load transient ±60.0 mV 200mA to 100 μA in 1μs, COUT = 1μF VO Output voltage range 0.9 3.6 V VOUT(NOM) + 0.5V ≤ VIN ≤ 6.5V, ΔVO/ΔVIN Line regulation 130 μV/V IOUT = 5mA ΔVO/ΔIOUT Load regulation 0mA ≤ IOUT ≤ 200mA 75 μV/mA VDO Dropout voltage(2) VIN = VOUT(NOM) – 0.1V, IOUT = 200mA 230 400 mV ICL Output current limit VOUT = 0.9 × VOUT(NOM) 240 340 575 mA IOUT = 0mA 50 80 μA IGND Ground pin current IOUT = 200mA 120 μA VEN ≤ 0.4V, 2.7V ≤ VIN < 4.5V, ISHDN Shutdown current (IGND) 0.10 1.0 μA TJ = –40°C to +85°C f = 100Hz 65 dB VIN = 3.8V, f = 1kHz 65 dB PSRR Power-supply rejection ratio VOUT = 2.8V, f = 10kHz 55 dB IOUT = 200mA f = 100kHz 40 dB BW = 100Hz to 100kHz, VIN = 3.3V, VN Output noise voltage 75 × V OUT μVRMS VOUT = 2.8V, IOUT = 10mA Transition time (low-to-high) VOUT_LOW = 1.8V, VOUT_HIGH = 3.15V, tTR VOUT = VOUT_LOW to VOUT_HIGH 60 μs IOUT = 10mA VOUT = 97% × VOUT_HIGH tSTR Startup time(3) COUT = 1.0μF 160 μs tSHUT Shutdown time(4) RL = ∞, COUT = 1.0μF, VOUT = 2.8V 180(5) μs VSET high (output VOUT2 selected), VHI 1.2 VIN V or enable pin high (enabled) VSET low (output VOUT1 selected), VLO 0 0.4 V or enable pin low (disabled) IEN, IVSET Enable and select pin currents EN = VSET = 6.5V 0.04 1.0 μA Undervoltage lockout VIN rising, VSET = high/low 2.38 2.51 2.65 V UVLO Hysteresis VIN falling, VSET = high/low 230 mV Shutdown, temperature increasing +160 °C TSD Thermal shutdown temperature Reset, temperature decreasing +140 °C TJ Operating junction temperature –40 +125 °C (1) The output voltage for VSET = low/high is programmed at the factory. (2) VDO is not measured for devices with VOUT(NOM) < 2.8V because minimum VIN = 2.7V. (3) Time from VEN = 1.2V to VOUT = 97% (VOUT(NOM)). (4) Time from VEN = 0.4V to VOUT = 5% (VOUT(NOM)). (5) See Shutdown in the Application Information section for more details. Copyright © 2007, Texas Instruments Incorporated Submit Documentation Feedback 3 |
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