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TPS79927DRVT Datasheet(PDF) 3 Page - Texas Instruments

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Part # TPS79927DRVT
Description  200mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low Dropout Linear Regulator
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS79927DRVT Datasheet(HTML) 3 Page - Texas Instruments

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ELECTRICAL CHARACTERISTICS
TPS799xx
SBVS056G – JANUARY 2005 – REVISED AUGUST 2006
Over operating temperature range (T
J = –40°C to +125°C), VIN = VOUT(TYP) + 0.3V or 2.7V, whichever is greater; IOUT = 1mA,
V
EN = VIN, COUT = 2.2µF, CNR = 0.01µF, unless otherwise noted. For TPS79901, VOUT = 3.0V.
Typical values are at T
J = +25°C.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIN
Input voltage range(1)
2.7
6.5
V
VFB
Internal reference (TPS79901)
1.169
1.193
1.217
V
VOUT
Output voltage range (TPS79901)
VFB
6.5 – VDO
V
VOUT
Output accuracy
Nominal
TJ = +25°C
–1.0
+1.0
%
Over VIN,
VOUT + 0.3V ≤ VIN ≤ 6.5V
VOUT
Output accuracy(1)
–2.0
±1.0
+2.0
%
IOUT, Temp
500
µA ≤ I
OUT ≤ 200mA
∆V
OUT%/ ∆VIN
Line regulation(1)
VOUT(NOM) + 0.3V ≤ VIN ≤ 6.5V
0.02
%/V
∆V
OUT%/ ∆IOUT
Load regulation
500
µA ≤ I
OUT ≤ 200mA
0.002
%/mA
Dropout voltage(2)
VDO
VOUT < 3.3V IOUT = 200mA
100
175
mV
(VIN = VOUT(NOM) – 0.1V)
Dropout voltage
VDO
VOUT ≥ 3.3V IOUT = 200mA
90
160
mV
(VIN = VOUT(NOM) – 0.1V)
ICL
Output current limit
VOUT = 0.9 × VOUT(NOM)
200
400
600
mA
IGND
Ground pin current
500
µA ≤ I
OUT ≤ 200mA
40
60
µA
ISHDN
Shutdown current (IGND)
VEN ≤ 0.4V, 2.7V ≤ VIN ≤ 6.5V
0.15
1.0
µA
IFB
Feedback pin current (TPS79901)
–0.5
0.5
µA
f = 100Hz
70
dB
Power-supply rejection ratio
f = 1kHz
66
dB
PSRR
VIN = 3.85V, VOUT = 2.85V,
f = 10kHz
51
dB
CNR = 0.01µF, IOUT = 100mA
f = 100kHz
38
dB
CNR = 0.01µF
10.5 x VOUT
µV
RMS
Output noise voltage
VN
BW = 10Hz to 100kHz, VOUT = 2.8V
CNR = none
94 x VOUT
µV
RMS
CNR = 0.001µF
45
µs
Startup time
CNR = 0.047µF
45
µs
TSTR
VOUT = 2.85V,
CNR = 0.01µF
50
µs
RL = 14Ω, COUT = 2.2µF
CNR = none
50
µs
VEN(HI)
Enable high (enabled)
1.2
VIN
V
VEN(LO)
Enable low (shutdown)
0
0.4
V
IEN(HI)
Enable pin current, enabled
VEN = VIN = 6.5V
0.03
1.0
µA
Shutdown, temperature
165
°C
increasing
TSD
Thermal shutdown temperature
Reset, temperature decreasing
145
°C
TJ
Operating junction temperature
–40
+125
°C
Under-voltage lock-out
VIN rising
1.90
2.20
2.65
V
UVLO
Hysteresis
VIN falling
70
mV
(1)
Minimum VIN = VOUT + VDO or 2.7V, whichever is greater.
(2)
VDO is not measured for devices with VOUT(NOM) < 2.8V because minimum VIN = 2.7V.
3
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