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TPS62122DRVR Datasheet(PDF) 4 Page - Texas Instruments |
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TPS62122DRVR Datasheet(HTML) 4 Page - Texas Instruments |
4 / 33 page TPS62120 TPS62122 SLVSAD5 – JULY 2010 www.ti.com ELECTRICAL CHARACTERISTICS (continued) VIN = 8V, VOUT = 1.8V, EN = VIN, TJ = –40°C to 85°C, typical values are at TJ = 25°C (unless otherwise noted), CIN = 4.7µF, L = 22µH, COUT = 4.7µF, see Parameter Measurement Information PARAMETER TEST CONDITIONS MIN TYP MAX UNIT REGULATOR tONmin Minimum ON time VIN = 3.6 V, VOUT = 1.8 V 700 ns tOFFmin Minimum OFF time VIN = 3.6 V, VOUT = 1.8 V 60 ns VREF Internal reference voltage 0.8 V Feedback FB voltage comparator Referred to 0.8V internal reference –2.5% 0% 2.5% threshold VFB Feedback FB voltage line regulation IOUT = 50 mA, (3) 0.04 %/V IIN Input bias current FB VFB = 0.8 V 0 50 nA Time from active EN to device starts switching, VIN tStart Regulator start-up time 50 150 = 2.6V µs tRamp Output voltage ramp time Time to ramp up VOUT = 1.8V, no load (4) 120 300 VOUT = VIN = VSW = 1.8 V, EN = GND, device in ILK_SW Leakage current into SW pin 1 1.5 µA shutdown mode POWER GOOD OUTPUT (TPS62120) Rising VFB feedback voltage 93% 95% 97% VTHPG Power Good threshold voltage Falling VFB feedback voltage 87% 90% 93% Current into PG pin I = 500 µA, VOUT > 1.5 V 165 VOL Output low voltage mV Current into PG pin I = 100 µA, 1.2 V < VOUT <1.5 V 50 VH Output high voltage Open drain output, external pull up resistor 5.5 V Leakage current into PG pin V(PG) = 1.8V, EN = high, FB = 0.85 V 0 50 nA ILKG Leakage into VOUT pin V(OUT) = 1.8 V 0 50 nA Internal power good comparator delay TPGDL VOUT = 1.8 V 2 5 µs time SGND OPEN DRAIN OUTPUT (TPS62120) RDSON NMOS drain source resistance SGND = 1.8 V, VIN = 2 V 370 Ω ILKG Leakage current into SGND pin EN = VIN, SGND = 1.8 V 0 50 nA (3) VOUT +1V ≤ VIN ; VOUT ≤ 5.5V (4) Maximum value not production tested 4 Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated Product Folder Link(s): TPS62120 TPS62122 |
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