Texas Instruments TPS65020 Power Management IC - Toradex

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TPS65020SLVS607C –SEPTEMBER 2005–REVISED SEPTEMBER 2011www.ti.comELECTRICAL CHARACTERISTICSVINDCDC1 = VINDCDC2 = VINDCDC3 = VCC = VINLDO = 3.6 V, VBACKUP = 3 V, T A = –40°C to 85°C, typical values areat T A = 25°C (unless otherwise noted)PARAMETER TEST CONDITIONS MIN TYP MAX UNITVLDO1 and VLDO2 LOW DROPOUT REGULATORSV I Input voltage range for LDO1, 2 1.5 6.5 VV O LDO1 output voltage range 1 3.3 VV O LDO2 output voltage range 1 3.3 VMaximum output current for LDO1,I O 200 mALDO2LDO1 and LDO2 short-circuitI (SC) VLDO1 = GND, VLDO2 = GND 400 mAcurrent limitMinimum voltage drop at LDO1,LDO2Output voltage accuracy for LDO1,LDO2I O = 50 mA, VINLDO = 1.8 V 120I O = 50 mA, VINLDO = 1.5 V 65 150 mVI O = 200 mA, VINLDO = 1.8 V 300I O = 10 mA –2% 1%VINLDO1,2 = VLDO1, 2 + 0.5 VLine regulation for LDO1, LDO2 –1% 1%(min. 2.5 V) to 6.5 V, I O = 10 mALoad regulation for LDO1, LDO2 I O = 0 mA to 50 mA –1% 1%Regulation time for LDO1, LDO2 Load change from 10% to 90% 10 μsANALOGIC SIGNALS DEFDCDC1, DEFDCDC2, DEFDCDC3V IH High level input voltage 1.3 VCC VV IL Low level input voltage 0 0.1 VI H Input bias current 0.001 0.05 μALOGIC SIGNALS PB_IN; PB_OUTV OL Low level output voltage at PB_OUT I OL = 20 mA 0.5 VV OH High level output voltage PB_OUT 6 VV IL Low level input voltage PB_IN 0.4 VV IH High level input voltage PB_IN 1.3 V CC(1) VTHERMAL SHUTDOWNII Input leakage current PB_IN 1 μAT (SD) Thermal shutdown Increasing junction temperature 160 °CThermal shutdown hysteresis Decreasing junction temperature 20 °CINTERNAL UNDERVOLTAGE LOCK OUTUVLO Internal UVLO VCC falling –2% 2.35 2% VV (UVLO_HYST) Internal UVLO comparator hysteresis 120 mVVOLTAGE DETECTOR COMPARATORSPOWER GOODComparator threshold(PWRFAIL_SNS, LOWBAT_SNS)Falling threshold –1% 1.0 1% VHysteresis 40 50 60 mVPropagation delay 25 mV overdrive 10 μsVDCDC1, VDCDC2, VDCDC3, VLDO1,V (PGOODF) –12% –10% –8%VLDO2, decreasingVDCDC1, VDCDC2, VDCDC3, VLDO1,V (PGOODR) –7% –5% –3%VLDO2, increasing(1) The input voltage can go as high as 6 V. If the input voltage exceeds VCC, an input current of (V (PB_IN) - 0.7 V - VCC) / 10 kΩ flows.10 Submit Documentation Feedback Copyright © 2005–2011, Texas Instruments IncorporatedProduct Folder Link(s) : TPS65020
TPS65020www.ti.com SLVS607C –SEPTEMBER 2005–REVISED SEPTEMBER 2011PIN ASSIGNMENT(TOP VIEW)AGND1LOWBAT_SNSPWRFAIL_SNSVCCVINDCDC2L2PGND2VDCDC2DEFDCDC2PWRFAILDEFDCDC3VDCDC3PGND3L3VINDCDC3VINDCDC1L1PGND1VDCDC1DEFDCDC140 39 38 37 36 35 34 33 32 31130229328427526625724823922102111 12 13 14 15 16 17 18 19 20SCLKSDATINTRESPWRONTRESPWRONDCDC1_ENDCDC2_ENDCDC3_ENLDO_ENLOWBATHOT_RESETPB_INPB_OUTVSYSINVBACKUPVRTCAGND2VLDO2VINLDOVLDO1TERMINAL FUNCTIONSTERMINALNAMENO.I/ODESCRIPTIONSWITCHING REGULATOR SECTIONAGND1 40 Analog ground connection. All analog ground pins are connected internally on the chip.AGND2 17 Analog ground connection. All analog ground pins are connected internally on the chip.PowerPAD – Connect the power pad to analog ground.VINDCDC1 6 IInput voltage for VDCDC1 step-down converter. This must be connected to the same voltage supplyas VINDCDC2, VINDCDC3, and VCC.L1 7 Switch pin of VDCDC1 converter. The VDCDC1 inductor is connected here.VDCDC1 9 I VDCDC1 feedback voltage sense input, connect directly to VDCDC1PGND1 8 Power ground for VDCDC1 converterVINDCDC2 36 IInput voltage for VDCDC2 step-down converter. This must be connected to the same voltage supplyas VINDCDC1, VINDCDC3, and VCC.L2 35 Switch pin of VDCDC2 converter. The VDCDC2 inductor is connected here.VDCDC2 33 I VDCDC2 feedback voltage sense input, connect directly to VDCDC2PGND2 34 Power ground for VDCDC2 converterVINDCDC3 5 IInput voltage for VDCDC3 step-down converter. This must be connected to the same voltage supplyas VINDCDC1, VINDCDC2, and VCC.L3 4 Switch pin of VDCDC3 converter. The VDCDC3 inductor is connected here.VDCDC3 2 I VDCDC3 feedback voltage sense input, connect directly to VDCDC3PGND3 3 Power ground for VDCDC3 converterCopyright © 2005–2011, Texas Instruments Incorporated Submit Documentation Feedback 11Product Folder Link(s) : TPS65020
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Texas Instruments TPS65020 Power Management IC - Toradex

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