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TPS22949AYZPR Datasheet(PDF) 7 Page - Texas Instruments |
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TPS22949AYZPR Datasheet(HTML) 7 Page - Texas Instruments |
7 / 24 page TPS22949 TPS22949A www.ti.com SLVS908C – FEBRUARY 2009 – REVISED JANUARY 2010 LOW-NOISE LDO REGULATOR ELECTRICAL CHARACTERISTICS over operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VOUTLDO Output voltage(1) 1.76 1.8 1.84 V VIN line regulation VIN = VOUTLDO + 0.5 V to 4.5 V, IOUT = 1 mA ±0.1 %/V ΔVOUTLDO/ΔVIN VIN line transient ΔVIN = 400 mV, tr = tf = 1 μs ±2 mV VIN = VOUTLDO + 1.4 V or 2.5 V, whichever is > 5.5 V, V+ line regulation ±0.1 %/V IOUT = 1 mA ΔVOUTLDO/ΔV+ V+ line transient ΔVIN = 600 mV, tr = tf = 1 μs ±5 mV Load regulation IOUT2 = 0 to 100 mA (no load to full load) ±0.01 %/V ΔVOUTLDO/ΔIOUT2 Load transient IOUT2 = 0 to 100 mA, tr = tf = 1 μs ±35 mV Dropout voltage VIN = VOUTLDO(NOM) – 0.1 V, V+ – VOUTLDO(NOM) = 1.4 V, VDO 110 200 mV (VDO = VIN – VOUTLDO) IOUT = 100 mA f = 10 Hz 75 f = 100 Hz 75 VOUTCL – VOUTLDO ≥ 0.5 V, f = 1 kHz 80 Power-supply VIN PSRR V+ = VOUTLDO + 1.4 V, dB rejection ratio f = 10 kHz 80 IOUT = 100 mA, f = 100 kHz 85 f = 1 MHz 85 f = 10 Hz 80 f = 100 Hz 80 VOUTCL – VOUTLDO ≥ 0.5 V, f = 1 kHz 75 Power-supply V+ PSRR V+ = VOUTLDO + 1.4 V, dB rejection ratio f = 10 kHz 65 IOUT = 100 mA, f = 100 kHz 55 f = 1 MHz 35 V+ ≥2.5 V, VN Output noise voltage BW = 10 Hz to 100 kHz 50 μVrms VOUTLDO = VOUTCL + 0.5 V VOUT = 95%, tSTR Startup time 130 250 μs VOUT(NOM), IOUT = 100 mA, COUT = 2.2 μF Undervoltage lockout V+ rising 2.3 2.45 2.55 V UVLO-V+ Hysteresis V+ falling 150 mV (1) LDO output voltage is fixed at 1.8 V. However, output voltages from 0.9 V to 3.6 V in 50 mV increments are available through the use of innovative factory EEPROM programming; minimum order quantities may apply. Contact factory for details and availability. Copyright © 2009–2010, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Link(s): TPS22949 TPS22949A |
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