AOZ1031AI Alpha & Omega Semiconductor Inc, AOZ1031AI Datasheet - Page 6

• Manufacturer Part Number: AOZ1031AI
• Description: IC BUCK SYNC ADJ 3A SO8
• Manufacturer: Alpha & Omega Semiconductor Inc
• Series: EZBuck™r
• Type: Step-Down (Buck), PWM - Current Moder

Specifications of AOZ1031AI

• Featured Product: The AOZ103x Family Synchronous Buck Regulator
• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.8 V ~ 18 V
• Current - Output: 3A
• Frequency - Switching: 600kHz
• 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
• Other names: 785-1253-2

Efficiency
Thermal Derating
Rev. 1.6 March 2010
Thermal de-rating curves for SO-8 package part under typical input and output condition based on the evaluation board.
25°C ambient temperature and natural convection (air speed < 50LFM) unless otherwise specified.
100
90
80
70
60
50
40
30
20
10
5
4
3
2
1
0
0
25
0
Efficiency (V
0.5
35
Derating Curves at 5V/6V Input
Ambient Temperature (T
1.0
45
IN
= 12V) vs. Load Current
I
OUT
1.5
55
(A)
2.0
65
A
1.2V, 1.8V Output
)
V
V
V
V
3.3V Output
2.5
O
O
O
O
75
AOZ1031AI Efficiency
= 1.2V
= 1.8V
= 3.3V
= 5V
www.aosmd.com
85
3.0
100
90
80
70
60
50
40
30
20
10
0
0
5
4
3
2
1
0
25
Efficiency (V
0.5
35
Derating Curves at 12V Input
Ambient Temperature (T
1.0
45
IN
= 5V) vs. Load Current
I
OUT
1.5
(A)
55
1.2V, 1.8V, 3.3V, 5.0V Output
2.0
65
A
AOZ1031AI
)
V
V
V
2.5
O
O
O
= 1.2V
= 1.8V
= 3.3V
Page 6 of 15
75
3.0
85