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TPS79625DCQR Datasheet(PDF) 4 Page - Texas Instruments

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Part # TPS79625DCQR
Description  ULTRALOW-NOISE, HIGH PSRR, FAST RF 1-A LOW-DROPOUT LINEAR REGULATORS
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

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ELECTRICAL CHARACTERISTICS
TPS79601, TPS79618, TPS79625
TPS79628, TPS79630, TPS79633
SLVS351D – SEPTEMBER 2002 – REVISED OCTOBER 2004
over recommended operating temperature range (T
J = -40 to 125°C), VEN = VIN,, VIN = VOUT(nom) + 1 V, IOUT = 1 mA,
C
OUT = 10 µF, CNR = 0.01 µF (unless otherwise noted). Typical values are at +25°C.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIN Input voltage(1)
2.7
5.5
V
IOUT Continuous output current(1)
0
1
A
TPS79618
0 µA < IOUT < 1 A
2.8 V < VIN < 5.5 V
1.764
1.8
1.836
V
TPS79625
0 µA < IOUT < 1 A
3.5 V < VIN < 5.5 V
2.45
2.5
2.55
Output voltage
TPS79628
0 µA < IOUT < 1 A
3.8 V < VIN < 5.5 V
2.744
2.8
2.856
V
TPS79630
0 µA < IOUT < 1 A
4 V < VIN < 5.5 V
2.94
3.0
3.06
TPS79633
0 µA < IOUT < 1 A
4.3 V < VIN < 5.5 V
3.234
3.3
3.366
Output voltage line regulation (
∆V
OUT%/VIN)
(1)
VOUT + 1 V < VIN ≤ 5.5 V
0.05
0.12
%/V
Load regulation (
∆V
OUT%/∆IOUT)
0 µA < IOUT < 1 A
TJ = 25°C
5
mV
IOUT = 1 A
270
365
TPS79628
IOUT = 250 mA
67
90
Dropout voltage (2)
mV
(VIN = VOUT (nom) - 0.1V)
TPS79630
IOUT = 1 A
250
345
TPS79633
IOUT = 1 A
220
325
Output current limit
VOUT = 0 V
2.4
4.2
A
Ground pin current
0 µA < IOUT < 1 A
265
385
µA
Shutdown current(3)
VEN = 0 V, 2.7 V < VIN < 5.5 V
0.07
1
µA
FB pin current
FB = 1.8 V
1
µA
f = 100 Hz
IOUT = 10 mA
59
f = 100 Hz
IOUT = 1 A
54
Power-supply ripple rejection
TPS79630
dB
f = 10 Hz
IOUT = 1 A
53
f = 100 Hz
IOUT = 1 A
42
CNR = 0.001 µF
54
CNR = 0.0047 µF
46
BW = 100 Hz to 100 kHz,
Output noise voltage (TPS79630)
µVRMS
IOUT = 1 A
CNR = 0.01 µF
41
CNR = 0.1 µF
40
CNR = 0.001 µF
50
Time, start-up (TPS79630)
RL = 3 Ω, COUT = 1 µF
CNR = 0.0047 µF
75
µs
CNR = 0.01 µF
110
EN pin current
VEN = 0V
-1
1
µA
High-level enable input voltage
2.7 V < VIN < 5.5 V
1.7
VIN
V
Low-level enable input voltage
2.7 V < VIN < 5.5 V
0
0.7
V
(1)
Minimum VIN = VOUT + VDO or 2.7V, whichever is greater.
(2)
VDO is not measured for TPS79618 and TPS79625 because minimum VIN = 2.7V.
(3)
For adjustable version, this applies only after VIN is applied; then VEN transitions high to low.
4


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