LP2985AIM5X-2.8 National Semiconductor, LP2985AIM5X-2.8 Datasheet - Page 7
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LP2985AIM5X-2.8
Manufacturer Part Number
LP2985AIM5X-2.8
Description
Manufacturer
National Semiconductor
Datasheet
1.LP2985AIM5X-2.8.pdf
(20 pages)
Specifications of LP2985AIM5X-2.8
Voltage Regulator Type
Linear
Topology
LDO
Regulator Output Type
Fixed
Polarity Type
Positive
Number Of Outputs
Single
Input Voltage (min)
2.5V
Input Voltage (max)
16V
Output Voltage
2.8V
Package Type
SOT-23
Output Current
150mA
Line Regulation
0.014%/V
Output Voltage Accuracy
±2.5%
Operating Temp Range
-40C to 125C
Operating Temperature Classification
Automotive
Pin Count
5
Mounting
Surface Mount
Lead Free Status / Rohs Status
Not Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LP2985AIM5X-2.8
Manufacturer:
NS
Quantity:
1 580
Company:
Part Number:
LP2985AIM5X-2.8
Manufacturer:
NSC
Quantity:
3 150
Part Number:
LP2985AIM5X-2.8
Manufacturer:
NS/国半
Quantity:
20 000
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(SC)
(PK)
Note 1: “Absolute Maximum Ratings” indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating
the device outside of its rated operating conditions.
Note 2: The ESD rating of pins 3 and 4 for the SOT-23 package, or pins 5 and 2 for the micro SMD package, is 1 kV.
Note 3: The maximum allowable power dissipation is a function of the maximum junction temperature, T
A
Where the value of θ
allowable dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown.
Note 4: For 12V option, output voltage survival: -0.3 to +16V. If used in a dual-supply system where the regulator load is returned to a negative supply, the LP2985
output must be diode-clamped to ground.
Note 5: The output PNP structure contains a diode between the V
will turn on this diode.
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: The ON/OFF input must be properly driven to prevent possible misoperation. For details, refer to Application Hints.
Note 9: The LP2985 has foldback current limiting which allows a high peak current when V
forced to ground (see Typical Performance Characteristics curves).
Note 10: Exposing the micro SMD device to direct sunlight will cause misoperation. See Application Hints for additional information.
, and the ambient temperature, T
Symbol
Output Noise
Voltage (RMS)
Ripple Rejection
Short Circuit Current
Peak Output Current
J-A
for the SOT-23 package is 220°C/W in a typical PC board mounting and the micro SMD package is 225°C/W. Exceeding the maximum
Parameter
A
. The maximum allowable power dissipation at any ambient temperture is calculated using:
BW = 300 Hz to 50 kHz,
C
C
f = 1 kHz, C
C
R
(Note
V
OUT
OUT
BYPASS
OUT
L
= 0 (Steady State)
≥
= 10 µF
= 10 µF
9)
V
= 10 nF
Conditions
o
(NOM) −5%
BYPASS
IN
to V
OUT
= 10 nF
terminals that is normally reverse-biased. Reversing the polarity from V
7
OUT
Typ
400
350
30
45
> 0.5V, and then reduces the maximum output current as V
LP2985AI-X.X
Min
J
(MAX), the junction-to-ambient thermal resistance, θ
(Note
6)
Max
Min
LP2985I-X.X
(Note
6)
Max
www.national.com
IN
to V
Units
OUT
OUT
mA
mA
µV
dB
J-
is