LP38512MR-ADJEV/NOPB National Semiconductor, LP38512MR-ADJEV/NOPB Datasheet - Page 2

BOARD EVALUATION FOR LP38512

LP38512MR-ADJEV/NOPB

Manufacturer Part Number
LP38512MR-ADJEV/NOPB
Description
BOARD EVALUATION FOR LP38512
Manufacturer
National Semiconductor

Specifications of LP38512MR-ADJEV/NOPB

Channels Per Ic
1 - Single
Voltage - Output
1.2V
Current - Output
1.5A
Voltage - Input
2.25 ~ 5.5V
Regulator Type
Positive Adjustable
Operating Temperature
-40°C ~ 125°C
Board Type
Fully Populated
Utilized Ic / Part
LP38512
Silicon Manufacturer
National
Silicon Core Number
LP38512MR-ADJ
Kit Application Type
Power Management - Voltage Regulator
Application Sub Type
LDO
Kit Contents
Board, Doc
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
LP38512MR-ADJEV
www.national.com
Enable Function
ON/OFF control is provided by supplying a logic level signal
to the Enable pin. A minimum V
required at this pin to enable the LDO output. The LDO output
will be shutdown when the V
The V
hysteresis.
FIGURE 2. 500 mA to 1.5A Load Transient Response
FIGURE 1. 10 mA to 1.5A Load Transient Response
EN
threshold incorporates approximately 100 mV of
EN
value is typically 0.6V or less.
EN
value of 1.2V is typically
30066408
30066407
2
In applications where the LP38512MR-ADJ is operated con-
tinuously the Enable pin can be connected directly to V
Enable pin has no default bias and must not be left floating.
The Enable pin must be actively driven to the appropriate
voltage level.
Power Dissipation
The PSOP-8 package alone has a junction to ambient thermal
resistance (θ
imum land area (EIA/JESD51-3). When mounted on the
LP38512MR-ADJ Evaluation Board the θ
mately 40°C/W.
The exposed DAP is soldered to the copper area immediately
under the package. The top copper surface area is extended
to additional copper area on the bottom of the board by five
thermal vias placed inside the DAP land area.
With the 40°C/W thermal rating the LP38512MR-ADJ evalu-
ation board will dissipate a maximum of 2.5W with T
JA
FIGURE 4. Enable Thresholds
) rating of 168°C/W when mounted to the min-
FIGURE 3. V
OUT
vs V
EN
JA
rating is approxi-
30066404
30066405
A
= 25°C.
IN
. The

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