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TPS74301KTWRG3 Datasheet(PDF) 3 Page - Texas Instruments

Part # TPS74301KTWRG3
Description  1.5A Ultra-LDO with Programmable Sequencing
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS74301KTWRG3 Datasheet(HTML) 3 Page - Texas Instruments

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ELECTRICAL CHARACTERISTICS
TPS74301
SBVS065E – DECEMBER 2005 – REVISED MAY 2007
At V
EN = 1.1V, VIN = VOUT + 0.3V, CIN = CBIAS = 0.1µF, COUT = 10µF, IOUT = 50mA, VBIAS = 5.0V, and TJ = –40°C to +125°C,
unless otherwise noted. Typical values are at T
J = +25°C.
TPS74301
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIN Input voltage range
VOUT + VDO
5.5
V
VBIAS Bias pin voltage range
2.375
5.25
V
VREF Internal reference (Adj.)
TJ = +25°C
0.796
0.8
0.804
V
Output voltage range
VIN = 5V, IOUT = 1.5A, VBIAS = 5V
VREF
3.6
V
VOUT
Accuracy(1)
2.375V
≤ V
BIAS ≤ 5.25V, 50mA ≤ IOUT ≤ 1.5A
–1
±0.2
1
%
VOUT (NOM) + 0.3 ≤ VIN ≤ 5.5V, QFN
0.0005
0.05
VOUT/VIN Line regulation
%/V
VOUT (NOM) + 0.3 ≤ VIN ≤ 5.5V, DDPAK
0.0005
0.06
0mA
≤ I
OUT ≤ 50mA
0.013
%/mA
VOUT/IOUT Load regulation
50mA
≤ I
OUT ≤ 1.5A
0.04
%/A
IOUT = 1.5A, VBIAS – VOUT (NOM) ≥ 1.62V, QFN
55
100
VIN dropout voltage(2)
mV
VDO
IOUT = 1.5A, VBIAS – VOUT (NOM) ≥ 1.62V, DDPAK
60
120
VBIAS dropout voltage(2)
IOUT = 1.5A, VIN = VBIAS
1.4
V
ICL Current limit
VOUT = 80% × VOUT (NOM)
1.8
4
A
IBIAS Bias pin current
IOUT = 0mA to 1.5A
2
4
mA
Shutdown supply current
ISHDN
VEN ≤ 0.4V
1
100
µA
(VIN)
IFB Feedback pin current(3)
IOUT = 50mA to 1.5A
–250
68
250
nA
1kHz, IOUT = 1.5A, VIN = 1.8V, VOUT = 1.5V
73
Power-supply rejection
dB
(VIN to VOUT)
800kHz, IOUT = 1.5A, VIN = 1.8V, VOUT = 1.5V
42
PSRR
1kHz, IOUT = 1.5A, VIN = 1.8V, VOUT = 1.5V
67
Power-supply rejection
dB
(VBIAS to VOUT)
800kHz, IOUT = 1.5A, VIN = 1.8V, VOUT = 1.5V
50
Noise Output noise voltage
100Hz to 100kHz, IOUT = 1.5A
25
× V
OUT
µV
RMS
%VOUT droop during load
VTRAN
IOUT = 50mA to 1.5A at 1A/µs, COUT = none
3.5
%VOUT
transient
tSTR Minimum startup time
VTRACK > 0.8V
40
µs
TACC Track pin accuracy
0.2V
≤ V
TRACK≤ 0.7V, VOUT = 0.8V
–60
60
mV
ITR Track pin current
VTRACK = 0.4V
0.1
1
µA
VEN, HI Enable input high level
1.1
5.5
V
VEN, LO Enable input low level
0
0.4
V
VEN, HYS Enable pin hysteresis
50
mV
VEN, DG Enable pin deglitch time
20
µs
IEN Enable pin current
VEN = 5V
0.1
1
µA
VIT PG trip threshold
VOUT decreasing
86.5
90
93.5
%VOUT
VHYS PG trip hysteresis
3
%VOUT
VPG, LO PG output low voltage
IPG = 1mA (sinking), VOUT < VIT
0.3
V
IPG, LKG PG leakage current
VPG = 5.25V, VOUT > VIT
0.3
1
µA
Operating junction
TJ
–40
+125
°C
temperature
Shutdown, temperature increasing
+155
Thermal shutdown
TSD
°C
temperature
Reset, temperature decreasing
+140
(1)
Adjustable devices tested at 0.8V; external resistor tolerance is not taken into account.
(2)
Dropout is defined as the voltage from the input to VOUT when VOUT is 2% below nominal.
(3)
IFB current flow is out of the device.
3
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