Datasheet

TPS65020
SLVS607C –SEPTEMBER 2005– REVISED SEPTEMBER 2011 www.ti.com
ELECTRICAL CHARACTERISTICS
VINDCDC1 = VINDCDC2 = VINDCDC3 = VCC = VINLDO = 3.6 V, VBACKUP = 3 V, T
A
= –40°C to 85°C, typical values are
at T
A
= 25°C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
VLDO1 and VLDO2 LOW DROPOUT REGULATORS
V
I
Input voltage range for LDO1, 2 1.5 6.5 V
V
O
LDO1 output voltage range 1 3.3 V
V
O
LDO2 output voltage range 1 3.3 V
Maximum output current for LDO1,
I
O
200 mA
LDO2
LDO1 and LDO2 short-circuit
I
(SC)
VLDO1 = GND, VLDO2 = GND 400 mA
current limit
I
O
= 50 mA, VINLDO = 1.8 V 120
Minimum voltage drop at LDO1,
I
O
= 50 mA, VINLDO = 1.5 V 65 150 mV
LDO2
I
O
= 200 mA, VINLDO = 1.8 V 300
Output voltage accuracy for LDO1,
I
O
= 10 mA –2% 1%
LDO2
VINLDO1,2 = VLDO1, 2 + 0.5 V
Line regulation for LDO1, LDO2 –1% 1%
(min. 2.5 V) to 6.5 V, I
O
= 10 mA
Load 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 μs
ANALOGIC SIGNALS DEFDCDC1, DEFDCDC2, DEFDCDC3
V
IH
High level input voltage 1.3 VCC V
V
IL
Low level input voltage 0 0.1 V
I
H
Input bias current 0.001 0.05 μA
LOGIC SIGNALS PB_IN; PB_OUT
V
OL
Low level output voltage at PB_OUT I
OL
= 20 mA 0.5 V
V
OH
High level output voltage PB_OUT 6 V
V
IL
Low level input voltage PB_IN 0.4 V
V
IH
High level input voltage PB_IN 1.3 V
CC
(1)
V
II Input leakage current PB_IN 1 μA
THERMAL SHUTDOWN
T
(SD)
Thermal shutdown Increasing junction temperature 160 °C
Thermal shutdown hysteresis Decreasing junction temperature 20 °C
INTERNAL UNDERVOLTAGE LOCK OUT
UVLO Internal UVLO VCC falling –2% 2.35 2% V
V
(UVLO_HYST)
Internal UVLO comparator hysteresis 120 mV
VOLTAGE DETECTOR COMPARATORS
Comparator threshold
Falling threshold –1% 1.0 1% V
(PWRFAIL_SNS, LOWBAT_SNS)
Hysteresis 40 50 60 mV
Propagation delay 25 mV overdrive 10 μs
POWER GOOD
VDCDC1, VDCDC2, VDCDC3, VLDO1,
V
(PGOODF)
–12% –10% –8%
VLDO2, decreasing
VDCDC1, 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.
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