AP7176BMP-13 Diodes Inc., AP7176BMP-13 Datasheet - Page 12

• Manufacturer Part Number: AP7176BMP-13
• Description: Low Dropout Controllers - LDO 3A ULTRA LDO LINEAR REG
• Manufacturer: Diodes Inc.

Specifications of AP7176BMP-13

• Rohs: yes

Layout Consideration
For good ground loop and stability, the input and output capacitors should be located close to the input, output, and ground pins of the device.
No other application circuit is connected within the loop. Avoid using vias within ground loop. If vias must be used, multiple vias should be used
to reduce via inductance.
The regulator ground pin should be connected to the external circuit ground to reduce voltage drop caused by trace impedance. Ground plane is
generally used to reduce trace impedance.
Wide trace should be used for large current paths from V
Place the R1, R2, and C1 (optional) near the LDO as close as possible to avoid noise coupling.
R2 is placed close to device ground. Connect the ground of the R2 to the GND pin by using a dedicated trace.
Connect the pin of the R1 directly to the load for Kelvin sensing.
No high current should flow through the ground trace of feedback loop and affect reference voltage stability.
For the packages with exposed pads, heat sinking is accomplished using the heat spreading capability of the PCB and its copper traces.
Suitable PCB area on the top layer and thermal vias (0.3mm drill size with 1mm spacing, 4 to 8 vias at least) to the V
reduce device temperature greatly.
Reference Layout Plots:
Ordering Information
AP7176B
Document number: DS35818 Rev. 2 - 2
AP7176BMP-13
AP7176BSP-13
Part Number
Vin
Cin
Vcntl
PG
EN
Package
Top Layer
Ccntl
1
Code
MP
GND
GND
SP
R2
C1
FB
R1
Cout
MSOP-8EP
Packaging
SO-8EP
Vout
IN
to V
OUT
www.diodes.com
, and load circuit.
12 of 15
2500/Tape & Reel
2500/Tape & Reel
Quantity
13” Tape and Reel
Vcntl
Bottom Layer
GND
Part Number Suffix
IN
power plane can help to
-13
-13
AP7176B
© Diodes Incorporated
December 2012