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TPS79230DBVT Fiches technique(PDF) 3 Page - Texas Instruments

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No de pièce TPS79230DBVT
Description  ULTRALOW-NOISE, HIGH PSRR, FAST RF 100-mA LOW-DROPOUT LINEAR REGULATORS
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

TPS79230DBVT Fiches technique(HTML) 3 Page - Texas Instruments

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TPS79201, TPS79225
TPS79228, TPS79230
SLVS337B – MARCH 2001 – REVISED MAY 2002
www.ti.com
3
ELECTRICAL CHARACTERISTICS
over recommended operating free-air temperature range, (TJ = –40 to 125°C), VI = VO(typ) + 1 V, IO = 1 mA, EN = VI, Co = 10 µF,
C(byp) = 0.01 µF (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
TPS79201
TJ = 25°C,
1.22 V
≤ VO ≤ 5.2
VO
TPS79201
0
µA < IO < 100 mA,
1.22 V
≤ VO ≤ 5.2 V (1) 0.98 VO
1.02 VO
TPS79225
TJ = 25°C
2.5
Output voltage
TPS79225
0
µA < IO < 100 mA,
3.5 V < VI < 5.5 V
2.45
2.55
V
Output voltage
TPS79228
TJ = 25°C
2.8
V
TPS79228
0
µA < IO < 100 mA,
3.8 V < VI < 5.5 V
2.744
2.856
TPS79230
TJ = 25°C
3
TPS79230
0
µA < IO < 100 mA,
4 V < VI < 5.5 V
2.94
3.06
Quiescent current (GND current)
0
µA < IO < 100 mA,
TJ = 25°C
170
µA
Quiescent current (GND current)
0
µA < IO < 100 mA
250
µA
Loadregulation
0
µA < IO < 100 mA,
TJ = 25°C
5
mV
Output voltage line regulation (
∆VO/VO)(2)
VO + 1 V < VI ≤ 5.5 V,
TJ = 25°C
0.05
%/V
Output voltage line regulation (
∆VO/VO)(2)
VO + 1 V < VI ≤ 5.5 V,
0.12
%/V
C(byp) = 0.001 µF
50
Output noise voltage (TPS79228)
BW = 100 Hz to 100 kHz,
C(byp) = 0.0047 µF
33
µVRMS
Output noise voltage (TPS79228)
BW = 100 Hz to 100 kHz,
IO = 100 mA, TJ = 25°C
C(byp) = 0.01 µF
31
µVRMS
O
,
J
C(byp) = 0.1 µF
27
R28
C1 F
C(byp) = 0.001 µF
50
Time, start-up (TPS79228)
RL = 28 Ω,
Co = 1 µF,
TJ =25°C
C(byp) = 0.0047 µF
70
µs
Time, start u (TPS79228)
TJ = 25°C
C(byp) = 0.01 µF
90
µs
Output current limit
VO = 0 V (1)
285
600
mA
UVLO threshold
VCC rising
2.25
2.65
V
UVLO hysteresis
TJ = 25°C
VCC rising
100
mV
Standby current
EN = 0 V,
2.7 V < VI < 5.5 V
0.7
1
µA
High level enable input voltage
2.7 V < VI < 5.5 V
2
V
Low level enable input voltage
2.7 V < VI < 5.5 V
0.7
V
Input current (EN)
EN = 0 V
–1
1
µA
f = 100 Hz,
TJ = 25°C,
IO = 10 mA
70
Power supply ripple rejection
TPS79228
f = 100 Hz,
TJ = 25°C,
IO = 100 mA
72
dB
Power supply ripple rejection
TPS79228
f = 10 kHz,
TJ = 25°C,
IO = 100 mA
75
dB
f = 100 kHz, TJ = 25°C,
IO = 100 mA
47
TPS79228
IO = 100 mA,
TJ = 25°C
60
Dt
lt
(3)
TPS79228
IO = 100 mA
110
V
Dropout voltag(3)
TPS79230
IO = 100 mA,
TJ = 25°C
55
mV
TPS79230
IO = 100 mA
100
(1) The minimum IN operating voltage is 2.7 V or VO(typ) + 1 V, whichever is greater. The maximum IN voltage is 5.5 V.Themaximumoutputcurrent
is 100 mA.
(2) If VO ≤ 2.5 V then VImin = 2.7 V, VImax = 5.5 V:
Line regulation (mV)
+ % V
V
O
V
Imax *
2.7 V
100
1000
If VO ≥ 2.5 V then VImin = VO + 1 V, VImax = 5.5 V:
(3) IN voltage equals VO(typ) – 100 mV; The TPS79225 dropout voltage is limited by the input voltage range limitations.


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