AOZ1017D Ver la hoja de datos (PDF) - Alpha and Omega Semiconductor
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AOZ1017D Datasheet PDF : 16 Pages
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AOZ1017D
Absolute Maximum Ratings
Exceeding the Absolute Maximum ratings may damage the
device.
Parameter
Supply Voltage (VIN)
LX to AGND
EN to AGND
FB to AGND
COMP to AGND
PGND to AGND
Junction Temperature (TJ)
Storage Temperature (TS)
Rating
18V
-0.7V to VIN+0.3V
-0.3V to VIN+0.3V
-0.3V to 6V
-0.3V to 6V
-0.3V to +0.3V
+150°C
-65°C to +150°C
Recommend Operating Ratings
The device is not guaranteed to operate beyond the Maximum
Operating Ratings.
Parameter
Rating
Supply Voltage (VIN)
Output Voltage Range
Ambient Temperature (TA)
Package Thermal Resistance (ΘJA)(2)
5x4 DFN-8
4.5V to 16V
0.8V to VIN
-40°C to +85°C
50°C/W
Package Thermal Resistance (ΘJC)
5x4 DFN-8
30°C/W
Package Power Dissipation (PD)
@ 25°C Ambient
5x4 DFN-8
1.15W
Note:
1. The value of ΘJA is measured with the device mounted on 1-in2 FR-4
board with 2oz. Copper, in a still air environment with TA = 25°C. The
value in any given application depends on the user's specific board
design.
Electrical Characteristics
TA = 25°C, VIN = VEN = 12V, VOUT = 3.3V unless otherwise specified(2)
Symbol
Parameter
Conditions
Min. Typ. Max. Units
VIN
Supply Voltage
4.5
16
V
VUVLO
Input Under-Voltage Lockout Threshold
VIN Rising
VIN Falling
4.00
3.70
V
IIN
Supply Current (Quiescent)
IOUT = 0, VFB = 1.2V, VEN >1.2V
2
3
mA
IOFF
Shutdown Supply Current
VEN = 0V
1
10
µA
VFB
Feedback Voltage
0.782 0.8 0.818
V
Load Regulation
0.5
%
Line Regulation
0.5
%
IFB
Feedback Voltage Input Current
VEN
EN Input threshold
Off Threshold
On Threshold
200
nA
2.0
0.6
V
VHYS
EN Input Hysteresis
MODULATOR
100
mV
fO
DMAX
DMIN
Frequency
Maximum Duty Cycle
Minimum Duty Cycle
Error Amplifier Voltage Gain
400 500
600
kHz
100
%
6
%
500
V/ V
Error Amplifier Transconductance
200
µA / V
PROTECTION
ILIM
Current Limit
VPR
Over-Voltage Protection Threshold
Off Threshold
On Threshold
4
5
A
960
840
mV
TJ
Over-Temperature Shutdown Limit
tSS
Soft Start Interval
OUTPUT STAGE
150
°C
2.2
ms
High-Side Switch On-Resistance
VIN = 12V
VIN = 5V
40
65
50
85
mΩ
Note:
2. Specification in BOLD indicate an ambient temperature range of -40°C to +85°C. These specifications are guaranteed by design.
Rev. 1.1 April 2009
www.aosmd.com
Page 4 of 16
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