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LP2989_15 Datasheet, PDF (6/34 Pages) Texas Instruments – LP2989 Micropower and Low-Noise, 500-mA Ultra Low-Dropout Regulator for Use With Ceramic Output Capacitors | |||
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LP2989
SNVS083O â FEBRUARY 2005 â REVISED MARCH 2015
www.ti.com
Electrical Characteristics (continued)
Unless otherwise specified: TJ = 25°C, VIN = VOUT(NOM) + 1 V, IOUT = 1 mA, COUT = 4.7 µF, CIN = 2.2 µF, VSD = 2 V.
PARAMETER
TEST CONDITIONS
LP2989AI-X.X (1)
MIN TYP MAX
LP2989I-X.X (1)
MIN TYP MAX
UNIT
IOUT = 100 µA
IOUT = 100 µA, â40°C ⤠TJ â¤
125°C
110
175
110
200
110
175
µA
110
200
IGND
Ground pin current
IOUT= 200 mA
IOUT = 200 mA, â40°C ⤠TJ
⤠125°C
IOUT = 500 mA
IOUT = 500 mA, â40°C ⤠TJ
⤠125°C
1
2
1
3.5
3
6
3
9
1
2
mA
1
3.5
3
6
mA
3
9
IOUT(PK)
IOUT(MAX)
en
Peak output current
Short circuit current
Output noise voltage
(RMS)
ÎVOUT/ÎVIN
ÎVOUT/ÎTD
Ripple Rejection
Output voltage
temperature coefficient
VSD < 0.18 V, â40°C ⤠TJ â¤
125°C
VSD < 0.4 V
VOUT ⥠VOUT(NOM) â 5%
RL = 0 (Steady State)(3)
BW = 100 Hz to 100 kHz,
COUT = 10 µF, CBYPASS =
.01 µF, VOUT = 2.5 V
f = 1 kHz, COUT = 10 µF
See(4), â40°C ⤠TJ ⤠125°C
0.5
0.05
600
800
1000
18
60
20
2
0.5
0.8
0.05
600
800
1000
18
60
20
2
µA
0.8
mA
mA
µV(RMS)
dB
ppm/°C
SHUTDOWN INPUT
VH = Output ON
1.4
1.4
VH = Output ON, â40°C ⤠TJ
⤠125°C
1.6
VSD
SD Input voltage
VL = Output OFF
0.5
1.6
V
0.5
VL = Output OFF, IIN ⤠2 µA,
â40°C ⤠TJ ⤠125°C
0.18
0.18
VSD = 0
0.001
0.001
VSD = 0, â40°C ⤠TJ â¤
125°C
ISD
SD Input current
VSD = 5 V
â1
5
â1
µA
5
VSD = 5 V, â40°C ⤠TJ â¤
125°C
15
15
ERROR COMPARATOR
VOH = 16 V
IOH
Output âHIGHâ leakage VOH = 16 V, â40°C ⤠TJ â¤
125°C
0.001
1
0.001
2
0.001
0.001
1
µA
2
VOL
VTHR(MAX)
VTHR(MIN)
HYST
Output âLOWâ voltage
Upper threshold voltage
Lower threshold voltage
Hysteresis
VIN = VOUT(NOM) â 0.5 V,
IOUT(COMP) = 150 µA
VIN = VOUT(NOM) â 0.5 V,
IOUT(COMP) = 150 µA, â40°C
⤠TJ ⤠125°C
â40°C ⤠TJ ⤠125°C
â40°C ⤠TJ ⤠125°C
â6
â8.3
â8.9
â13
150
150
â4.8
â4.8
â6.6
â6.6
2
220
350
â3.5
â2.5
â4.9
â3
â6
â8.3
â8.9
â13
150
150
â4.8
â4.8
â6.6
â6.6
220
mV
350
â3.5
â2.5 %VOUT
â4.9
â3 %VOUT
(3) See the Typical Characteristics section.
(4) Temperature coefficient is defined as the maximum (worst-case) change divided by the total temperature range.
6
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