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TPS78228DRVT Datasheet(PDF) 3 Page - Texas Instruments

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Part # TPS78228DRVT
Description  500nA, IQ 150mA, Ultra-Low Quiescent Current
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS78228DRVT Datasheet(HTML) 3 Page - Texas Instruments

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TPS782xx
www.ti.com
SBVS115B – AUGUST 2008 – REVISED MAY 2010
ELECTRICAL CHARACTERISTICS
Over operating temperature range (TJ = –40°C to +125°C), VIN = VOUT(NOM) + 0.5V or 2.2V, whichever is greater;
IOUT = 100mA, VEN = VIN, COUT = 1.0mF, fixed VOUT test conditions, unless otherwise noted. Typical values at TJ = +25°C.
TPS782xx
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIN
Input voltage range
2.2
5.5
V
Nominal
TJ = +25°C
–2
±1
+2
%
VOUT
DC output accuracy
Over VIN, IOUT, VOUT + 0.5V ≤ VIN ≤ 5.5V,
–3.0
±2.0
+3.0
%
temperature
0mA
≤ IOUT ≤ 150mA
ΔVOUT/ΔVIN
Line regulation
VOUT(NOM) + 0.5V ≤ VIN ≤ 5.5V, IOUT = 5mA
±1.0
%
ΔVOUT/ΔIOUT Load regulation
0mA
≤ IOUT ≤ 150mA
±2.0
%
VDO
Dropout voltage(1)
VIN = 95% VOUT(NOM), IOUT = 150mA
130
250
mV
BW = 100Hz to 100kHz, VIN = 2.2V,
VN
Output noise voltage
86
mVRMS
VOUT = 1.2V, IOUT = 1mA
ICL
Output current limit
VOUT = 0.90 × VOUT(NOM)
150
230
400
mA
IOUT = 0mA
0.42
1.3
mA
IGND
Ground pin current
IOUT = 150mA
8
mA
VEN ≤ 0.4V, 2.2V ≤ VIN < 5.5V,
ISHDN
Shutdown current (IGND)
18
130
nA
TJ = –40°C to +100°C
IEN
EN pin current
VEN = 5.5V
40
nA
f = 10Hz
40
dB
VIN = 4.3V,
PSRR
Power-supply rejection ratio
VOUT = 3.3V,
f = 100Hz
20
dB
IOUT = 150mA
f = 1kHz
15
dB
COUT = 1.0mF, VOUT = 10% VOUT(NOM) to
tSTR
Startup time(2)
500
ms
VOUT = 90% VOUT(NOM)
IOUT = 150mA, COUT = 1.0mF, VOUT = 2.8V,
tSHDN
Shutdown time(3)
VOUT = 90% VOUT(NOM) to VOUT = 10%
500(4)
ms
VOUT(NOM)
Shutdown, temperature increasing
+160
°C
TSD
Thermal shutdown temperature
Reset, temperature decreasing
+140
°C
TJ
Operating junction temperature
–40
+125
°C
(1)
VDO is not measured for devices with VOUT(NOM) ≤ 2.3V because minimum VIN = 2.2V.
(2)
Time from VEN = 1.2V to VOUT = 90% (VOUT(NOM)).
(3)
Time from VEN = 0.4V to VOUT = 10% (VOUT(NOM)).
(4)
See Shutdown in the Application Information section for more details.
Copyright © 2008–2010, Texas Instruments Incorporated
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