LP2989IM-2.5 National Semiconductor, LP2989IM-2.5 Datasheet - Page 4

• Manufacturer Part Number: LP2989IM-2.5
• Description: IC,VOLT REGULATOR,FIXED,+2.5V,BIPOLAR,SOP,8PIN,PLASTIC
• Manufacturer: National Semiconductor

Specifications of LP2989IM-2.5

• Rohs Compliant: NO

www.national.com
SHUTDOWN INPUT
V
I
ERROR COMPARATOR
I
V
V
(MAX)
V
(MIN)
HYST
S/D
OH
Limits in standard typeface are for T
less otherwise specified: V
S/D
OL
THR
THR
Electrical Characteristics
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating the de-
vice outside of its rated operating conditions.
Note 2: ESD testing was performed using Human Body Model, a 100 pF capacitor discharged through a 1.5 k
Note 3: The maximum allowable power dissipation is a function of the maximum junction temperature, T
and the ambient temperature, T
The value of
will go into thermal shutdown.
Note 4: If used in a dual-supply system where the regulator load is returned to a negative supply, the LP2989 output must be diode-clamped to ground.
Note 5: The output PNP structure contains a diode between the V
on this diode and may induce a latch-up mode which can damage the part (see Application Hints).
Note 6: Limits are 100% production tested at 25˚C. Limits over the operating temperature range are guaranteed through correlation using Statistical Quality Control
(SQC) methods. The limits are used to calculate National’s Average Outgoing Quality Level (AOQL).
Note 7: 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.
Note 8: Temperature coefficient is defined as the maximum (worst-case) change divided by the total temperature range.
Note 9: See Typical Performance Characteristics curves.
Symbol
J−A
Output Voltage
Temperature Coefficient
S/D Input Voltage
S/D Input Current
Output “HIGH” Leakage
Output “LOW” Voltage
Upper Threshold
Voltage
Lower Threshold
Voltage
Hysteresis
for the SO-8 (M) package is 160˚C. Exceeding the maximum allowable power dissipation will cause excessive die temperature, and the regulator
Parameter
A
. The maximum allowable power dissipation at any ambient temperature is calculated using:
IN
= V
O
(NOM) + 1V, I
J
= 25˚C, and limits in boldface type apply over the full operating temperature range. Un-
(Note 8)
V
V
I
V
V
V
V
I
IN
O
H
L
S/D
S/D
OH
IN
(COMP) = 150 µA
(Continued)
= O/P OFF
= O/P ON
= V
= 16V
2 µA
= 0
= 5V
Conditions
L
O
(NOM) − 0.5V,
= 1 mA, C
IN
and V
OUT
OUT
terminals that is normally reverse-biased. Forcing the output above the input will turn
4
= 4.7 µF, C
Typical
0.001
0.001
0.50
−4.8
−6.6
150
1.4
2.0
20
5
IN
= 1 µF, V
−13.0
−6.0
−8.9
−8.3
LP2989AI-X.X
Min
1.6
J
(MAX), the junction-to-ambient thermal resistance,
(Note 6)
S/D
resistor.
Max
0.18
−3.5
−2.5
−4.9
−3.0
220
350
−1
15
= 2V.
1
2
−13.0
−6.0
−8.3
−8.9
Min
1.6
LP2989I-X.X
(Note 6)
Max
0.18
−3.5
−2.5
−4.9
−3.0
220
350
−1
15
1
2
ppm/˚C
%V
Units
mV
µA
µA
V
J−A
OUT
,