L5983TR STMicroelectronics, L5983TR Datasheet - Page 31

• Manufacturer Part Number: L5983TR
• Description: IC REG SW 1.5A STEPDOWN 8-VFQFPN
• Manufacturer: STMicroelectronics
• Type: Step-Down (Buck)r

Specifications of L5983TR

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 0.6 ~ 18 V
• Current - Output: 1.5A
• Frequency - Switching: 250kHz ~ 1MHz
• Voltage - Input: 2.9 ~ 18 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-VFQFN, 8-VFQFPN
• Power - Output: 1.5W
• For Use With: 497-6386 - BOARD EVAL FOR L5983
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-6860-2; L5983TR

L5983
Figure 22. Junction temperature vs output
Figure 24. Junction temperature vs output
Figure 26. Efficiency vs output current
94
92
90
88
86
84
82
80
78
76
0
0.2
current
current
0.4
VCC=5V,
F
SW
0.6
=250kHz
0.8
Io [A]
1
1.2
Vo=3.3V
Vo=2.5V
Vo=1.8V
1.4
1.6
Doc ID 13005 Rev 6
1.8
Figure 23. Junction temperature vs output
Figure 25. Efficiency vs output current
Figure 27. Efficiency vs output current
95
90
85
80
75
70
95
90
85
80
75
70
0.0
0
0.2
0.2
current
0.4
0.4
VCC=12V,
F
VCC=3.3V,
F
SW
SW
0.6
0.6
=250kHz
=250kHz
0.8
0.8
Io [A]
Io [A]
Application information
1.0
1
1.2
1.2
Vo=5V
Vo=3.3V
Vo=2.5V
1.4
1.4
Vo=2.5V
Vo=1.8V
Vo=1.2V
1.6
1.6
1.8
1.8
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