NCP3170ADR2G ON Semiconductor, NCP3170ADR2G Datasheet - Page 8

• Manufacturer Part Number: NCP3170ADR2G
• Description: IC BUCK SYNC/ASYNC ADJ 3A 8SOIC
• Manufacturer: ON Semiconductor
• Series: -r
• Type: Step-Down (Buck), PWM - Current Moder

Specifications of NCP3170ADR2G

• Internal Switch(s): Yes
• Synchronous Rectifier: Both
• Number Of Outputs: 1
• Voltage - Output: 0.8 V ~ 12.8 V
• Current - Output: 3A
• Frequency - Switching: 500kHz
• Voltage - Input: 4.5 V ~ 18 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

NCP3170A Efficiency and Thermal Derating
Thermal derating curves for the SOIC−8 package part under typical input and output conditions based on the evaluation board.
The ambient temperature is 25°C with natural convection (air speed < 50LFM) unless otherwise specified.
100
5
4
3
2
1
0
90
80
70
60
50
40
30
20
10
25
0
0
Figure 22. 500 kHz Derating Curves at 5 V
Figure 20. Efficiency (V
V
35
o
= 1.2 V
T
A
, AMBIENT TEMPERATURE (°C)
1.2 V, 1.8 V,
V
OUTPUT CURRENT (A)
3.3 V
45
o
1
= 1.8 V
Current
55
V
o
= 3.3 V
IN
= 12 V) vs. Load
65
2
12 V, 500 kHz
Efficiency
V
o
75
= 5 V
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85
3
8
100
90
80
70
60
50
40
30
20
10
5
4
3
2
1
0
0
25
0
Figure 21. Efficiency (V
Figure 23. 500 kHz Derating Curves at 12 V
V
o
35
= 1.2 V
T
A
, AMBIENT TEMPERATURE (°C)
OUTPUT CURRENT (A)
1.2 V, 1.8 V,
3.3 V, 5.0 V
45
1
V
55
o
IN
= 1.8 V
= 5 V) vs. Load Current
65
2
5 V, 500 kHz
V
Efficiency
o
= 3.3 V
75
85
3