L4995K STMicroelectronics, L4995K Datasheet - Page 23

• Manufacturer Part Number: L4995K
• Description: IC REG LDO 5V 500MA POWERSSO-24
• Manufacturer: STMicroelectronics

Specifications of L4995K

• Regulator Topology: Positive Fixed
• Voltage - Output: 5V
• Voltage - Input: 5.6 ~ 31 V
• Voltage - Dropout (typical): 0.27V @ 400mA
• Number Of Regulators: 1
• Current - Output: 500mA
• Current - Limit (min): 600mA
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: PowerSSO-24
• Number Of Outputs: 1
• Polarity: Positive
• Output Voltage: 5 V
• Output Type: Fixed
• Dropout Voltage (max): 0.5 V at 400 mA
• Output Current: 500 mA
• Line Regulation: 25 mV
• Load Regulation: 25 mV
• Voltage Regulation Accuracy: 2 %
• Maximum Operating Temperature: + 150 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

L4995
Figure 36. PowerSSO-24 thermal impedance junction ambient single pulse
Equation 5: pulse calculation formula
where δ = t
Figure 37. Thermal fitting model of V
Table 10.
Z
THδ
100
ZTH ( ° C/ W)
0,1
10
1
0,0001
=
Area/island (cm
R
P
TH
R1 (°C/W)
R2 (°C/W)
R3 (°C/W)
R4 (°C/W)
/T
PowerSSO-24 thermal parameter
⋅
0,001
δ
+
Z
THtp
2
)
(
0,01
1 δ
–
Doc ID 13103 Rev 10
)
0,1
Time ( s)
reg
Footprint
0.45
1.79
7.7
in in PowerSSO-24
6
1
Package and PCB thermal data
10
2
100
1000
8
Footprint
2 cm
23/34
8 cm
2
2