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TPS74201KTWR Fiches technique(PDF) 6 Page - Texas Instruments

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No de pièce TPS74201KTWR
Description  Ultra-LDO With Programmable Soft-Start
Download  34 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

TPS74201KTWR Fiches technique(HTML) 6 Page - Texas Instruments

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TPS74201
SBVS064M – DECEMBER 2005 – REVISED OCTOBER 2015
www.ti.com
6.5
Electrical Characteristics
At VEN = 1.1 V, VIN = VOUT + 0.3 V, CIN = CBIAS = 0.1 μF, COUT = 10 μF, IOUT = 50 mA, VBIAS = 5 V, and TJ = –40°C to 125°C,
unless otherwise noted. Typical values are at TJ = 25°C.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIN
Input voltage
VOUT + VDO
5.5
V
VBIAS
Bias pin voltage
2.375
5.25
V
Internal reference
VREF
TJ = 25°C
0.796
0.8
0.804
V
(Adjustable)
Output voltage
VIN = 5 V, IOUT = 1.5 A, VBIAS = 5 V
VREF
3.6
V
VOUT
2.375 V
≤ VBIAS ≤ 5.25 V, VOUT + 1.62 V ≤ VBIAS
Accuracy(1)
–1%
±0.2%
1%
50 mA
≤ IOUT ≤ 1.5 A
VOUT (NOM) + 0.3 ≤ VIN ≤ 5.5 V, VQFN
0.0005
0.05
VOUT/VIN
Line regulation
%/V
VOUT (NOM) + 0.3 ≤ VIN ≤ 5.5 V, DDPAK/TO-263
0.0005
0.06
0 mA
≤ IOUT ≤ 50 mA
0.013
%/mA
VOUT/IOUT
Load regulation
50 mA
≤ IOUT ≤ 1.5 A
0.04
%/A
IOUT = 1.5 A, VBIAS – VOUT (NOM) ≥ 1.62 V, VQFN
55
100
mV
VIN dropout voltage
(2)
IOUT = 1.5 A, VBIAS – VOUT (NOM) ≥ 1.62 V, DDPAK/TO-
VDO
60
120
mV
263
VBIAS dropout voltage
(2)
IOUT = 1.5 A, VIN = VBIAS
1.4
V
ICL
Current limit
VOUT = 80% × VOUT (NOM)
1.8
4
A
IBIAS
Bias pin current
IOUT = 0 mA to 1.5 A
2
4
mA
ISHDN
Shutdown supply current (VIN) VEN ≤ 0.4 V
1
100
μA
Feedback, Sense pin
IFB, ISNS
IOUT = 50 mA to 1.5 A
–250
68
250
nA
current(3)
1 kHz, IOUT = 1.5 A, VIN = 1.8 V, VOUT = 1.5 V
73
Power-supply rejection
dB
(VIN to VOUT)
300 kHz, IOUT = 1.5 A, VIN = 1.8 V, VOUT = 1.5 V
42
PSRR
1 kHz, IOUT = 1.5 A, VIN = 1.8 V, VOUT = 1.5 V
62
Power-supply rejection
dB
(VBIAS to VOUT)
300 kHz, IOUT = 1.5 A, VIN = 1.8 V, VOUT = 1.5 V
50
Noise
Output noise voltage
100 Hz to 100 kHz, IOUT = 1.5 A, CSS = 0.001 μF
16 × VOUT
μVRMS
%VOUT droop during load
VTRAN
IOUT = 50 mA to 1.5 A at 1 A/μs, COUT = none
3.5
%VOUT
transient
tSTR
Minimum start-up time
IOUT = 1.5 A, CSS = open
100
μs
ISS
Soft-start charging current
VSS = 0.4 V
0.5
0.73
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 = 5 V
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 = 1 mA (sinking), VOUT < VIT
0.3
V
IPG, LKG
PG leakage current
VPG = 5.25 V, VOUT > VIT
0.03
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; 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, ISNS current flow is out of the device.
6
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