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| LP2985AIM5X-2.0 Datasheet, PDF (4/22 Pages) Texas Instruments – LP2985LV-N Micropower 150 mA Low-Noise Low-Dropout Regulator in SOT-23 and DSBGA packages for Applications with Output Voltages 2.0V | |||
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LP2985LV-N
SNOS510P â NOVEMBER 1999 â REVISED APRIL 2013
www.ti.com
ELECTRICAL CHARACTERISTICS(1)
Limits in standard typeface are for TJ = 25°C. and limits in boldface type apply over the full operating temperature range.
Unless otherwise specified: VIN = VO(NOM) + 1V, IL = 1 mA, CIN = 1 µF, COUT = 4.7 µF, VON/OFF = 2V.
Symbol
Parameter
Conditions
LP2985AI-X.X (2)
LP2985I-X.X (2)
Typ
Units
Min
Max
Min
Max
ÎVO
Output Voltage
Tolerance
IL = 1 mA
1 mA ⤠IL ⤠50 mA
1 mA ⤠IL ⤠150 mA
â1.0
1.0
â1.5
1.5
â1.5
1.5
â2.5
2.5
â2.5
2.5
â3.5
3.5
%VNOM
â2.5
2.5
â3.0
3.0
â3.5
3.5
â4.0
4.0
Output Voltage
Line Regulation
VO(NOM)+1V ⤠VIN ⤠16V
0.007
0.014
0.032
0.014
0.032
%/V
IL = 0
65
95
95
125
125
IL = 1 mA
75
110
110
170
170
IGND
Ground Pin Current
IL = 10 mA
IL = 50 mA
120
220
400
220
400
300
500
900
500
µA
900
IL = 150 mA
825
1200
2000
1200
2000
VIN(min)
VON/OFF < 0.3V
VON/OFF < 0.15V
Minimum Input Voltage
Required To maintain Output
Regulation (3)
0.01
0.05
2.05
0.8
2
2.20
0.8
2
2.20
V
VIN - VOUT Dropout Voltage(3)
IL = 50mA
IL = 150mA
120
150
250
150
250
mV
280
350
600
350
600
VON/OFF
ON/OFF Input Voltage(4)
High = O/P ON
Low = O/P OFF
1.4
1.6
1.6
V
0.55
0.15
0.15
ION/OFF
ON/OFF Input Current
VON/OFF = 0
VON/OFF = 5V
0.01
â2
5
15
BW = 300 Hz to 50 kHz,
en
Output Noise Voltage (RMS)
COUT = 10 µF
CBYPASS = 10 nF
30
VOUT = 1.8V
Ripple Rejection
f = 1 kHz, CBYPASS = 10 nF
COUT = 10 µF
45
â2
µA
15
µV
dB
IO(SC)
Short Circuit Current
RL = 0 (Steady State)(5)
400
mA
IO(PK)
Peak Output Current
VOUT ⥠Vo(NOM) â5%
350
mA
(1) Exposing the DSBGA device to direct sunlight will cause misoperation. See APPLICATION HINTS for additional information.
(2) Limits are 100% production tested at 25°C. Limits over the operating temperature range are ensured through correlation using Statistical
Quality Control (SQC) methods. The limits are used to calculate Average Outgoing Quality Level (AOQL).
(3) VIN must be the greater of 2.2V or VOUT(NOM) + Dropout Voltage to maintain output regulation. Dropout Voltage is defined as the input to
output differential at which the output voltage drops 2% below ther value measured with a 1V differential.
(4) The ON/OFF input must be properly driven to prevent possible misoperation. For details, refer to APPLICATION HINTS.
(5) The LP2985LV-N has foldback current limiting which allows a high peak current when VOUT > 0.5V, and then reduces the maximum
output current as VOUT is forced to ground (see TYPICAL PERFORMANCE CHARACTERISTICS curves).
4
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Copyright © 1999â2013, Texas Instruments Incorporated
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