LP3990MF-0.8 National Semiconductor, LP3990MF-0.8 Datasheet - Page 6

• Manufacturer Part Number: LP3990MF-0.8
• Description: 150mA Linear Voltage Regulator for Digital Applications
• Manufacturer: National Semiconductor

www.national.com
e
T
Enable Control Characteristics
I
(Note 12)
V
V
Timing Characteristics
T
Transient
Response
C
EN
n
SHUTDOWN
ON
IL
IH
OUT
Electrical Characteristics
Unless otherwise noted, V
µF. Typical values and limits appearing in normal type apply for T
full junction temperature range for operation, −40 to +125˚C. (Note 13)
Note 1: Absolute Maximum Ratings are limits beyond which damage can occur. Operating Ratings are conditions under which operation of the device is
guaranteed. Operating Ratings do not imply guaranteed performance limits. For guaranteed performance limits and associated test conditions, see the Electrical
Characteristics tables.
Note 2: All Voltages are with respect to the potential at the GND pin.
Note 3: For further information on these packages please refer to the following application notes;AN-1112 Micro SMD Package Wafer Level Chip Scale
Package,AN-1187 Leadless Leadframe Package.
Note 4: Internal thermal shutdown circuitry protects the device from permanent damage.
Note 5: The human body model is 100pF discharged through a 1.5kΩ resistor into each pin. The machine model is a 200pF capacitor discharged directly into each
pin.
Note 6: The maximum ambient temperature (T
dissipation of the device in the application (P
following equation: T
Note 7: Dropout voltage is voltage difference between input and output at which the output voltage drops to 100mV below its nominal value. This parameter only
for output voltages above 2.0V.
Note 8: Junction to ambient thermal resistance is dependant on the application and board layout. In applications where high maximum power dissipation is possible,
special care must be paid to thermal dissipation issues in board design.
Note 9: The device maintains the regulated output voltage without the load.
Note 10: This electrical specification is guaranteed by design.
Note 11: Short circuit current is measured with V
Note 12: Enable Pin has 1MΩ typical, resistor connected to GND.
Note 13: All limits are guaranteed. All electrical characteristics having room-temperature limits are tested during production at T
Statistical Quality Control methods. Operation over the temperature specification is guaranteed by correlating the electrical characteristics to process and
temperature variations and applying statistical process control.
Note 14: V
Output Capacitor, Recommended Specifications
Symbol
Symbol
IN(MIN)
Output noise Voltage (Note 10)
Thermal Shutdown
Maximum Input Current at
V
Low Input Threshold
High Input Threshold
Turn On Time (Note 10)
Line Transient Response |δV
Load Transient Response
|δV
Output Capacitor
EN
= V
OUT
A(max)
Input
OUT(NOM)
|
= T
Parameter
Parameter
J(max-op)
+ 0.5V, or 2.0V, whichever is higher.
EN
=950mV, V
- (θ
JA
D(max)
x P
A(max)
D(max)
OUT
), and the junction to ambient thermal resistance of the part/package in the application (θ
OUT
IN
) is dependant on the maximum operating junction temperature (T
pulled to 0V and V
).
= V
(Continued)
| T
BW = 10Hz to
100kHz,
Temperature
Hysteresis
V
V
V
V
To 95% Level
V
δV
T
to 150mA
C
Capacitance
(Note 15)
ESR
OUT
EN
EN
IN
IN
IN(MIN)
rise
rise
OUT
IN
= 2V to 6V
= 2V to 6V
= 0.0V
= 6V
= T
= T
= 600mV
+ 1.0V, or 2.0V, whichever is higher. C
= 1µF
to 6.0V
fall
fall
IN
= 30µs (Note 10)
= 1µs (Note 10)I
worst case = 6.0V.
Conditions
Conditions
-40˚C to +125˚C
0˚C to +125˚C
6
V
V
V
V
V
V
OUT
OUT
OUT
OUT
OUT
OUT
J
= 27˚C. Limits appearing in boldface type apply over the
= 0.8
= 1.5
= 3.3
= 0.8
= 1.5
= 3.3
OUT
= 1mA
1.0
0.47
0.001
Typ
125
180
155
105
175
Typ
60
15
80
55
IN
6
8
= 1 µF, I
J(max-op)
0.95
0.68
0.33
Min
Min
2.5
5
OUT
= 125˚C), the maximum power
J
Limit
Limit
= 25˚C or correlated using
= 1 mA, C
Max
Max
150
200
250
500
0.1
0.4
JA
10
16
80
), as given by the
OUT
(pk - pk)
µV
Units
Units
=0.47
mΩ
mV
mV
µA
µF
˚C
µs
V
V
RMS