AOZ1110QI Alpha & Omega Semiconductor Inc, AOZ1110QI Datasheet - Page 6

• Manufacturer Part Number: AOZ1110QI
• Description: IC BUCK SYNC ADJ 4A 24QFN
• Manufacturer: Alpha & Omega Semiconductor Inc
• Series: EZBuck™r
• Type: Step-Down (Buck), PWM - Current Moder

Specifications of AOZ1110QI

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.8 V ~ 5.5 V
• Current - Output: 4A
• Frequency - Switching: 500kHz, 1MHz
• Voltage - Input: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-WFQFN Exposed Pad
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 785-1257-2

Typical Performance Characteristics
Circuit of Figure 1 with internal soft-start. T
Rev. 1.0 October 2010
Switching Waveforms at Light Load
Load Transient Waveforms
Start Up Waveforms
200us/div
400ns/div
1ms/div
A
= 25°C, V
Vo ripple
10mV/div
Vin ripple
0.1V/div
VLX
5V/div
IL
1A/div
Enable
5V/div
Pgood
2V/div
Vo
0.5V/div
IIN
2A/div
www.aosmd.com
Vo
50mV/div
Io
2A/div
IN
= V
EN
= 3.3V, V
Switching Waveforms at Heavy Load
Short-Circuit Protection Waveforms
Short-Circuit Recovery Waveforms
OUT
= 1.2V unless otherwise specified.
400ns/div
1ms/div
1ms/div
AOZ1110
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LX
5V/div
Pgood
2V/div
Vo
1V/div
IL
5A/div
Vo ripple
10mV/div
Vin ripple
0.1V/div
VLX
5V/div
IL
1A/div
LX
5V/div
Pgood
2V/div
Vo
1V/div
IL
5A/div