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TPS717 Datasheet(PDF) 5 Page - Texas Instruments

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No. de pieza TPS717
Descripción Electrónicos  TPS717xx Low-Noise, High-Bandwidth PSRR,Low-Dropout, 150-mA Linear Regulator
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI - Texas Instruments

TPS717 Datasheet(HTML) 5 Page - Texas Instruments

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TPS717
www.ti.com
SBVS068H – FEBRUARY 2006 – REVISED JANUARY 2015
6.5 Electrical Characteristics
Over operating temperature range (TJ = –40°C to 125°C), VIN = VOUT(nom) + 0.5 V or 2.5 V, whichever is greater;
IOUT = 0.5 mA, VEN = VIN, COUT = 1.0 μF, CNR = 0.01 μF, unless otherwise noted. For TPS71701, VOUT = 2.8 V.
Typical values are at TJ = 25°C.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIN
Input voltage range(1)
2.5
6.5
V
VFB
Internal reference (TPS71701)
0.790
0.800
0.810
V
(TPS717xx)
0.9
5.0
V
VOUT
Output voltage range
(TPS71701)
0.9
6.5 – VDO
V
Output accuracy
Nominal
TJ = 25°C
±2.5
mV
Output accuracy
Over VIN, IOUT,
VOUT + 0.5 V ≤ VIN ≤ 6.5 V
–30
+30
mV
VOUT
(VOUT < 1.0 V)
Temp(2)
0 mA
≤ IOUT ≤ 150 mA
Output accuracy
Over VIN, IOUT,
VOUT + 0.5 V ≤ VIN ≤ 6.5 V
–3.0%
+3.0%
(VOUT ≥ 1.0 V)
Temp(2)
0 mA
≤ IOUT ≤ 150 mA
VOUT(nom) + 0.5 V ≤ VIN ≤ 6.5 V,
ΔVOUT(ΔVIN)
Line regulation (1)
125
µV/V
IOUT = 5 mA
ΔVOUT(ΔIOUT)
Load regulation
0 mA
≤ IOUT ≤ 150 mA
70
µV/mA
Dropout voltage(3)
VDO
IOUT = 150 mA
170
300
mV
(VIN = VOUT(nom) – 0.1 V)
ILIM (fixed)
Output current limit (fixed output)
VOUT = 0.9 × VOUT(nom)
200
325
575
mA
ILIM (adjustable)
Output current limit (TPS71701)
VOUT = 0.9 × VOUT(nom)
200
325
575
mA
IOUT = 0.1 mA
45
80
μA
IGND
Ground pin current
IOUT = 150 mA
100
μA
VEN ≤ 0.4 V,
2.5 V
≤ VIN < 4.5 V
0.20
1.5
μA
ISHDN
Shutdown current (IGND)
TJ = –40°C to
4.5 V
≤ VIN ≤ 6.5 V
0.90
μA
85°C
IFB
Feedback pin current (TPS71701)
0.02
1.0
μA
f = 100 Hz
70
dB
f = 1 kHz
70
dB
VIN = 3.8 V,
PSRR
Power-supply rejection ratio
VOUT = 2.8 V,
f = 10 kHz
67
dB
IOUT = 150 mA
f = 100 kHz
67
dB
f = 1 MHz
45
dB
CNR = none
95 × VOUT
μVRMS
BW = 100 Hz to
100 kHz,
CNR = 0.001 μF
25 × VOUT
μVRMS
Vn
Output noise voltage
VIN = 3.8 V,
CNR = 0.01 μF
12.5 × VOUT
μVRMS
VOUT = 2.8 V,
IOUT = 10 mA
CNR = 0.1 μF
11.5 × VOUT
μVRMS
0.9 V
≤ VOUT ≤ 1.6V, CNR
VOUT = 90%
0.700
ms
= 0.001
μF
VOUT(nom),
tSTR
Startup time
RL = 19 Ω,
1.6 V < VOUT < VMAX,
0.160
ms
COUT = 1 μF
CNR = 0.01 μF
VIN ≤ 5.5 V
1.2
6.5(4)
V
VEN(high)
Enable high (enabled)
5.5 V < VIN ≤ 6.5 V
1.25
6.5
V
VEN(low)
Enable low (shutdown)
0
0.4
V
IEN(high)
Enable pin current, enabled
EN = 6.5 V
0.02
1.0
μA
Undervoltage lockout
VIN rising
2.41
2.45
2.49
V
UVLO
Hysteresis
VIN falling
150
mV
Shutdown, temperature increasing
160
°C
Tsd
Thermal shutdown temperature
Reset, temperature decreasing
140
°C
TJ
Operating junction temperature
–40
125
°C
(1)
Minimum VIN = VOUT + VDO or 2.5 V, whichever is greater.
(2)
Does not include external resistor tolerances.
(3)
VDO is not measured for devices with VOUT(nom) < 2.6 V because the minimum VINis 2.5 V.
(4)
Maximum VEN(high) = VIN + 0.3 or 6.5 V, whichever is smaller.
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