ADP123-EVALZ Analog Devices Inc, ADP123-EVALZ Datasheet - Page 16

• Manufacturer Part Number: ADP123-EVALZ
• Description: Linear Regulator Eval. Board
• Manufacturer: Analog Devices Inc

Specifications of ADP123-EVALZ

• Silicon Manufacturer: Analog Devices
• Application Sub Type: LDO
• Kit Application Type: Power Management - Voltage Regulator
• Silicon Core Number: ADP123
• Kit Contents: Board, Starter Guide
• Channels Per Ic: 1 - Single
• Voltage - Output: 0.8 ~ 5 V
• Current - Output: 350mA
• Voltage - Input: 2.3 ~ 5.5 V
• Regulator Type: Positive Adjustable
• Operating Temperature: -40°C ~ 85°C
• Board Type: Fully Populated
• Utilized Ic / Part: ADP123
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ADP122/ADP123
140
120
100
80
60
40
20
0
0.4
Figure 40. Junction Temperature vs. Power Dissipation,
I
I
I
I
LOAD
LOAD
LOAD
LOAD
0.8
= 1mA
= 10mA
= 50mA
= 100mA
Board Temperature = 85°C
1.2
I
I
I
T
LOAD
LOAD
LOAD
V
J
IN
MAX
– V
1.6
= 150mA
= 250mA
= 300mA
OUT
(V)
2.0
2.4
2.8
Rev. 0 | Page 16 of 20
PRINTED CIRCUIT BOARD LAYOUT
CONSIDERATIONS
Heat dissipation from the package can be improved by increasing
the amount of copper attached to the pins of the ADP122/ADP123.
However, as shown in Table 6, a point of diminishing returns
eventually is reached, beyond which an increase in the copper
size does not yield significant heat dissipation benefits.
The input capacitor should be placed as close as possible to the
VIN and GND pins, and the output capacitor should be placed
as close as possible to the VOUT and GND pins. Use of 0402 or
0603 size capacitors and resistors achieves the smallest possible
footprint solution on boards where the area is limited.