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TPS73625DBVT Fiches technique(PDF) 3 Page - Texas Instruments

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No de pièce TPS73625DBVT
Description  Cap-Free, NMOS, 400mA Low-Dropout Regulator
Download  27 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

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ELECTRICAL CHARACTERISTICS
TPS736xx
SBVS038K – SEPTEMBER 2003 – REVISED SEPTEMBER 2005
Over operating temperature range (T
J = -40°C to +125°C), VIN = VOUT(nom) + 0.5V
(1), I
OUT = 10mA, VEN = 1.7V, and
C
OUT = 0.1µF, unless otherwise noted. Typical values are at TJ = 25°C.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIN
Input voltage range(1)(2)
1.7
5.5
V
VFB
Internal reference (TPS73601)
TJ = 25°C
1.198
1.20
1.210
V
Output voltage range
VFB
5.5 - VDO
V
(TPS73601)
VOUT
Nominal
TJ = 25°C
-0.5
+0.5
Accuracy(1)
%
over VIN, IOUT,
VOUT + 0.5V ≤ VIN≤ 5.5V;
-1.0
±0.5
+1.0
and T
10mA
≤ I
OUT≤ 400mA
∆V
OUT%/∆VIN
Line regulation(1)
VO(nom) + 0.5V≤ VIN≤ 5.5V
0.01
%/V
1mA
≤ I
OUT≤ 400mA
0.002
∆V
OUT%/∆IOUT
Load regulation
%/mA
10mA
≤ I
OUT≤ 400mA
0.0005
Dropout voltage(3)
VDO
IOUT = 400mA
75
200
mV
(VIN = VOUT(nom) - 0.1V)
ZO(DO)
Output impedance in dropout
1.7V
≤ V
IN≤ VOUT + VDO
0.25
VOUT = 0.9 × VOUT(nom)
400
650
800
mA
ICL
Output current limit
3.6V
≤ V
IN≤ 4.2V, 0°C ≤ TJ≤ 70°C
500
800
mA
ISC
Short-circuit current
VOUT = 0V
450
mA
IREV
Reverse leakage current(4) (-IIN)
VEN ≤ 0.5V, 0V≤ VIN≤ VOUT
0.1
10
µA
IOUT = 10mA (IQ)
400
550
IGND
Ground pin current
µA
IOUT = 400mA
800
1000
ISHDN
Shutdown current (IGND)
VEN ≤ 0.5V, VOUT≤ VIN≤ 5.5
0.02
1
µA
IFB
FB pin current (TPS73601)
0.1
0.3
µA
f = 100Hz, IOUT = 400mA
58
Power-supply rejection ratio
PSRR
dB
(ripple rejection)
f = 10KHz, IOUT = 400mA
37
COUT = 10µF, No CNR
27 × VOUT
Output noise voltage
VN
µVRMS
BW = 10Hz - 100KHz
COUT = 10µF, CNR = 0.01µF
8.5 × VOUT
VOUT = 3V, RL = 30Ω COUT = 1µF,
tSTR
Startup time
600
µs
CNR = 0.01µF
VEN(HI)
Enable high (enabled)
1.7
VIN
V
VEN(LO)
Enable low (shutdown)
0
0.5
V
IEN(HI)
Enable pin current (enabled)
VEN = 5.5V
0.02
0.1
µA
Shutdown, temperature increasing
160
TSD
Thermal shutdown temperature
°C
Reset, temperature decreasing
140
TJ
Operating junction temperature
-40
125
°C
(1)
Minimum VIN = VOUT +VDO or 1.7V, whichever is greater.
(2)
For VOUT(nom) <1.6V, when VIN≤ 1.6V, the output will lock to VIN and may result in a damaging over-voltage level on the output. To avoid
this situation, disable the device before powering down the VIN.
(3)
VDO is not measured for the TPS73615 (VOUT(nom) = 1.5V) since minimum VIN = 1.7V.
(4)
Refer to Applications section for more information.
3


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