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LP2960IMX-33 Datasheet, PDF (3/24 Pages) Texas Instruments – LP2960 Adjustable Micropower 0.5A Low-Dropout Regulators
◁
LP2960
www.ti.com
SNVS112C – APRIL 1999 – REVISED APRIL 2013
Electrical Characteristics (continued)
Limits in standard typeface are for TJ = 25°C, and limits in boldface type apply over the full operating temperature range.
Unless otherwise specified: CIN = 4.7 μF, VIN = VO(NOM) + 1V, IL = 1 mA, COUT = 10 μF for 5V parts or COUT = 22 μF for 3.3V
parts, Feedback pin is tied to VTAP pin, Output pin is tied to Sense pin, VS/D = 2V.
Symbol
Parameter
Conditions
LP2960AI (1)
Typ
Min
Max
LP2960I (1)
Min
Max
Units
VIN − VO
IL = 1 mA
12
30
50
30
50
Dropout Voltage(4)
IL = 100 mA
IL = 200 mA
180
250
350
260
350
450
250
350
mV
350
450
IL = 500 mA
470
600
800
600
800
IGND
IL = 1 mA
450
600
750
600
750
μA
Ground Pin Current(5)
IL = 100 mA
IL = 200 mA
2.6
4.0
5.0
2.5
8
10
4.0
5.0
8
10
mA
IL = 500 mA
21
35
40
35
40
IGND
Ground Pin Current at
Dropout (5)
VIN = VO(NOM) − 0.5V
IL = 100 μA
1.8
3
5
Ground Pin Current at
Shutdown (5)
VSD ≤ 1.1V
300
400
3
5
mA
400
μA
ILIMIT
Current Limit
RL = 0.5Ω
1000
1500
1600
1500
1600
mA
Thermal Regulation
See (6)
0.05
0.2
0.2
%/W
en
VREF
Output Noise Voltage
@ IL = 100 mA
(10 Hz–100kHz)
Reference Voltage
Reference Voltage
Line Regulation
COUT = 10 μF
COUT = 47 μF
COUT = 47 μF (7)
See (8)
300
210
130
1.235
1.220
1.210
0.05
1.250
1.265
0.1
0.30
1.210
1.195
1.260
1.275
0.2
0.4
μV
RMS
V
%
Reference Voltage
Load Regulation
IREF = 0–200 μA
0.45
0.6
0.9
1.2
1.5
%
Reference Voltage
Temperature Coefficient
See (9)
20
ppm/°C
IB(FB)
Feedback Pin Bias
Current
−20
−50
−70
−50
−70
nA
(4) Dropout voltage is defined as the input to output differential at which the output voltage drops 100 mV below the value measured with a
1V differential. At very low values of programmed output voltage, the input voltage minimum of 2V (2.3V over temperature) must be
observed.
(5) Ground pin current is the regulator quiescent current. The total current drawn from the source is the sum of the ground pin current,
output load current, and current through the external resistive divider (if used).
(6) Thermal regulation is the change in output voltage at a time T after a change in power dissipation, excluding load or line regulation
effects. Specifications are for a 400 mA load pulse at VIN = VO(NOM) + 15V (6W pulse) for T = 10 ms.
(7) Connect a 0.1 μF capacitor from the output to the feedback pin.
(8) Two separate tests are performed for reference voltage line regulation, one covering 2.5V ≤ VIN ≤ VO(NOM) + 1V and the other test for
VO(NOM) + 1V ≤ VIN ≤ 30V.
(9) Output or reference voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range.
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