LP3991TL-1.8/NOPB National Semiconductor, LP3991TL-1.8/NOPB Datasheet - Page 3

• Manufacturer Part Number: LP3991TL-1.8/NOPB
• Description: IC REG 300MA 1.8V DGTL 4USMD
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LP3991TL-1.8/NOPB

• Regulator Topology: Positive Fixed
• Voltage - Output: 1.8V
• Voltage - Input: Up to 4V
• Voltage - Dropout (typical): 0.11V @ 300mA
• Number Of Regulators: 1
• Current - Output: 300mA (Min)
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 4-MicroSMD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Limit (min): -
• Other names: LP3991TL-1.8TR

V
ΔV
V
I
I
I
I
PSRR
e
T
LOAD
Q
SC
OUT
n
SHUTDOWN
IN
DO
Absolute Maximum Ratings
(Note
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics
Unless otherwise noted, V
Typical values and limits appearing in normal type apply for T
temperature range for operation, −40 to +125°C.
Symbol
V
V
Junction Temperature
Lead/Pad Temp.
Micro SMD
Storage Temperature
Continuous Power Dissipation
(Note
ESD
Human Body Model
Machine Model
OUT
IN
EN
, V
Pin: Voltage to GND
(Note
1,
OUT
4)
Note
, Pins: Voltage to GND
5)
Input Voltage
Output Voltage Tolerance
Line Regulation Error
Load Regulation Error
Dropout
Minimum Load Current
Quiescent Current
Short Circuit Current Limit
Maximum Output Current
Power Supply Rejection Ratio
(Note
Output noise Voltage
Thermal Shutdown
2)
(Note
14)
Voltage(Note
Parameter
3)
EN
=950mV, V
-0.3 to (V
(Note
11)
14)
IN
= V
IN
Internally Limited
+ 0.3V) to 6.5V
OUT
-65 to 150°C
(Note
(Note
V
I
V
I
0.8V
I
1.8
V
(Note
V
V
V
V
f = 1kHz, I
BW = 10Hz to 100kHz,
V
Temperature
Hysteresis
LOAD
OUT
OUT
-0.3 to 6.5V
IN
IN
OUT
EN
EN
EN
IN
IN
(Note
+ 0.5V, or 1.8V, whichever is higher. C
= V
= V
≤
= 3.6V
= 4.2V, C
= 950mV, I
= 950mV, I
= 0.4V
= 1mA
= 1mA to 300mA
≤
= 1 to 300mA
> 2.5V
V
10)
16)
12)
150°C
260°C
(max)
IN(NOM)
OUT(NOM)
200V
V
OUT
9)
2KV
OUT
OUT
(Note
≤
A
≤
OUT
2.5V
= 25°C. Limits appearing in boldface type apply over the full junction
Conditions
to 3.6V
= 1mA to 300mA
2.8V
OUT
OUT
+0.5V to 3.6V,
3
13)
= 4.7µF
= 0mA
= 300mA
Operating Ratings
Thermal Properties
Input Voltage Range
Recommended Load Current
Junction Temperature
Ambient Temperature T
(Note
Junction To Ambient Thermal
Resistance(Note
θ
(Note
θ
JA
JA
Temperature
(T
-25°C to +85°C
I
I
I
I
OUT
OUT
OUT
OUT
JEDEC Board
4 Layer Board
J
)=
6)
8)
= 150mA
= 300mA
= 150mA
= 300mA
7)
IN
0.001
0.05
Typ
110
120
550
280
160
= 1µF, I
10
55
40
75
50
65
20
A
Range
OUT
(Note
1.65
(Note
Min
-1.0
-3.0
-2.5
300
= 1.0mA, C
0
1)
Limit
1)
Max
180
160
100
225
900
3.6
4.0
1.0
3.0
2.5
1.0
-40°C to 125°C
60
90
80
1
-40°C to 85°C
OUT
1.65 to 4.0V
www.national.com
=4.7µF.
160°C/W
88°C/W
300mA
µV/mA
µV
Units
%/V
mV
mA
mA
mA
µA
dB
°C
%
V
RMS