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TPS73618DCQG4 Fiches technique(PDF) 3 Page - Texas Instruments

No de pièce TPS73618DCQG4
Description  Cap-Free, NMOS, 400mA Low-Dropout Regulator with Reverse Current Protection
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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
www.ti.com .................................................................................................................................................. SBVS038R – SEPTEMBER 2003 – REVISED MAY 2008
Over operating temperature range (TJ = –40°C to +125°C), VIN = VOUT(nom) + 0.5V
(1), I
OUT = 10mA, VEN = 1.7V, and
COUT = 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)(3)
VOUT
Nominal
TJ = +25°C
–0.5
+0.5
Accuracy(1)
%
over VIN, IOUT,
VOUT + 0.5V ≤ VIN ≤ 5.5V;
(4)
–1.0
±0.5
+1.0
and T
10mA
≤ IOUT ≤ 400mA
ΔVOUT%/ΔVIN
Line regulation(1)
VO(nom) + 0.5V ≤ VIN ≤ 5.5V
0.01
%/V
1mA
≤ IOUT ≤ 400mA
0.002
ΔVOUT%/ΔIOUT Load regulation
%/mA
10mA
≤ IOUT ≤ 400mA
0.0005
Dropout voltage(5)
VDO
IOUT = 400mA
75
200
mV
(VIN = VOUT(nom) – 0.1V)
ZO(DO)
Output impedance in dropout
1.7V
≤ VIN ≤ VOUT + VDO
0.25
VOUT = 0.9 × VOUT(nom)
400
650
800
mA
ICL
Output current limit
3.6V
≤ VIN ≤ 4.2V, 0°C ≤ TJ ≤ +70°C
500
800
mA
ISC
Short-circuit current
VOUT = 0V
450
mA
IREV
Reverse leakage current(6) (–IIN)
VEN ≤ 0.5V, 0V ≤ VIN ≤ VOUT
0.1
10
µA
IOUT = 10mA (IQ)
400
550
IGND
GND pin current
µA
IOUT = 400mA
800
1000
VEN ≤ 0.5V, VOUT ≤ VIN ≤ 5.5,
ISHDN
Shutdown current (IGND)
0.02
1
µA
–40
°C ≤ T
J ≤ +100°C
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
× V
OUT
Output noise voltage
VN
µV
RMS
BW = 10Hz – 100KHz
COUT = 10µF, CNR = 0.01µF
8.5
× V
OUT
VOUT = 3V, RL = 30Ω COUT = 1µF,
tSTR
Startup time
600
µs
CNR = 0.01µF
VEN(HI)
EN pin high (enabled)
1.7
VIN
V
VEN(LO)
EN pin low (shutdown)
0
0.5
V
IEN(HI)
EN 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)
TPS73601 is tested at VOUT = 2.5V.
(4)
Tolerance of external resistors not included in this specification.
(5)
VDO is not measured for fixed output versions with VOUT(nom) < 1.8V.
(6)
Fixed-voltage versions only; refer to Applications section for more information.
Copyright © 2003–2008, Texas Instruments Incorporated
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