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TPS71726DCKT Datasheet(PDF) 6 Page - Texas Instruments

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No. de Pieza. TPS71726DCKT
Descripción  Low-Noise, High-Bandwidth PSRR, Low-Dropout, 150-mA Linear Regulator
Descarga  43 Pages
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Fabricante  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
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TPS71726DCKT Datasheet(HTML) 6 Page - Texas Instruments

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6
TPS717
SBVS068I – FEBRUARY 2006 – REVISED JANUARY 2016
www.ti.com
Product Folder Links: TPS717
Submit Documentation Feedback
Copyright © 2006–2016, Texas Instruments Incorporated
(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 VIN is 2.5 V.
(4)
Maximum VEN(high) = VIN + 0.3 or 6.5 V, whichever is smaller.
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
Feedback pin voltage (TPS71701)
IOUT = 5 mA
–2%
0.793
2%
V
VOUT
Output voltage range
(TPS717xx)
0.9
5.0
V
(TPS71701)
0.9
6.5 – VDO
VOUT
Output accuracy
Nominal
TJ = 25°C
±2.5
mV
Output accuracy
(VOUT < 1.0 V)
Over VIN, IOUT,
temperature(2)
VOUT + 0.5 V ≤ VIN ≤ 6.5 V
0 mA
≤ IOUT ≤ 150 mA
–30
30
Output accuracy
(VOUT ≥ 1.0 V)
Over VIN, IOUT,
temperature(2)
VOUT + 0.5 V ≤ VIN ≤ 6.5 V
0 mA
≤ IOUT ≤ 150 mA
–3.0%
3.0%
ΔVOUT(ΔVIN)
Line regulation(1)
VOUT(nom) + 0.5 V ≤ VIN ≤ 6.5 V,
IOUT = 5 mA
125
µV/V
ΔVOUT(ΔIOUT)
Load regulation
0 mA
≤ IOUT ≤ 150 mA
70
µV/mA
VDO
Dropout voltage(3)
(VIN = VOUT(nom) – 0.1 V)
IOUT = 150 mA
170
300
mV
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
IGND
Ground pin current
IOUT = 0.1 mA
45
80
μA
IOUT = 150 mA
100
ISHDN
Shutdown current (IGND)
VEN ≤ 0.4 V,
TJ = –40°C to
85°C
2.5 V
≤ VIN < 4.5 V
0.20
1.5
μA
4.5 V
≤ VIN ≤ 6.5 V
0.90
IFB
Feedback pin current (TPS71701)
0.02
1.0
μA
PSRR
Power-supply rejection ratio
VIN = 3.8 V,
VOUT = 2.8 V,
IOUT = 150 mA
f = 100 Hz
70
dB
f = 1 kHz
70
f = 10 kHz
67
f = 100 kHz
67
f = 1 MHz
45
Vn
Output noise voltage
BW = 100 Hz to
100 kHz,
VIN = 3.8 V,
VOUT = 2.8 V,
IOUT = 10 mA
CNR = none
95 × VOUT
μVRMS/V
CNR = 0.001 μF
25 × VOUT
CNR = 0.01 μF
12.5 × VOUT
CNR = 0.1 μF
11.5 × VOUT
tSTR
Startup time
VOUT = 90%
VOUT(nom),
RL = 19 Ω,
COUT = 1 μF
0.9 V
≤ VOUT ≤ 1.6V, CNR
= 0.001
μF
0.700
ms
1.6 V < VOUT < VMAX,
CNR = 0.01 μF
0.160
VEN(high)
Enable high (enabled)
VIN ≤ 5.5 V
1.2
6.5(4)
V
5.5 V < VIN ≤ 6.5 V
1.25
6.5
VEN(low)
Enable low (shutdown)
0
0.4
V
IEN(high)
Enable pin current, enabled
EN = 6.5 V
0.02
1.0
μA
UVLO
Undervoltage lockout
VIN rising
2.45
2.49
V
Hysteresis
VIN falling
150
mV
Tsd
Thermal shutdown temperature
Shutdown, temperature increasing
160
°C
Reset, temperature decreasing
140
TJ
Operating junction temperature
–40
125
°C


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