ADP120-AUJZ33R7 Analog Devices Inc, ADP120-AUJZ33R7 Datasheet - Page 17

• Manufacturer Part Number: ADP120-AUJZ33R7
• Description: IC REG LDO 100MA 3.3V SOT23-5
• Manufacturer: Analog Devices Inc

Specifications of ADP120-AUJZ33R7

• Regulator Topology: Positive Fixed
• Voltage - Output: 3.3V
• Voltage - Input: Up to 5.5V
• Voltage - Dropout (typical): 0.08V @ 100mA
• Number Of Regulators: 1
• Current - Output: 100mA
• Current - Limit (min): 110mA
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: TSOT-23-5, TSOT-5, TSOP-5
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

In cases where the board temperature is known, use the thermal
characterization parameter, Ψ
temperature rise. Maximum junction temperature (T
calculated from the board temperature (T
dissipation (P
T
J
140
120
100
140
120
100
= T
80
60
40
20
80
60
40
20
0
0
0.5
0.5
B
MAX JUNCTION TEMPERATURE
MAX JUNCTION TEMPERATURE
+ (P
D
) using the formula
1.0
1.0
D
× Ψ
Figure 47. WLCSP, T
1.5
1.5
Figure 46. TSOT, T
JB
)
I
I
L
L
= 100mA
= 100mA
2.0
2.0
I
L
I
= 25mA
V
L
V
IN
IN
JB
= 25mA
, to estimate the junction
– V
– V
2.5
2.5
OUT
OUT
B
I
I
(V)
I
(V)
B
= 85°C
L
L
L
= 85°C
3.0
3.0
= 75mA
= 10mA
= 75mA
I
L
= 10mA
B
) and power
3.5
3.5
I
I
L
L
= 50mA
= 50mA
I
I
L
4.0
L
4.0
= 1mA
= 1mA
J
) is
4.5
4.5
Rev. A | Page 17 of 20
(5)
PCB LAYOUT CONSIDERATIONS
Improve heat dissipation from the package by increasing the
amount of copper attached to the pins of the ADP120. However,
as listed in Table 6, a point of diminishing returns is eventually
reached, beyond which an increase in the copper size does not
yield significant heat dissipation benefits.
Place the input capacitor as close as possible to the VIN and
GND pins. Place the output capacitor 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 area is limited.
ADP120CB-xx-EVALZ
GND
GND
VIN
J1
Figure 49. WLCSP PCB Layout
Figure 48. TSOT PCB Layout
EN
ANALOG DEVICES
ADP120-xx-EVALZ
C1
GND
VIN
U1
C2
C1
EN
J1
U1
WLC
SP
C2
GND
VOUT
VOUT
GND
GND
ADP120