AOZ1021(2007) Ver la hoja de datos (PDF) - Alpha and Omega Semiconductor
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AOZ1021 Datasheet PDF : 15 Pages
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AOZ1021
Electrical Characteristics
TA = 25°C, VIN = VEN = 12V, VOUT = 3.3V unless otherwise specified.(3)
Symbol
Parameter
Conditions
Min. Typ. Max.
VIN
VUVLO
Supply Voltage
Input Under-Voltage Lockout Threshold
IIN
Supply Current (Quiescent)
IOFF Shutdown Supply Current
VFB
Feedback Voltage
Load Regulation
4.5
16
VIN Rising
4.1
VIN Falling
3.7
IOUT = 0, VFB = 1.2V, VEN > 1.2V
1.6
2.5
VEN = 0V
3
20
TA = 25°C
0.788 0.8 0.812
0.5
Line Regulation
1
IFB
Feedback Voltage Input Current
200
ENABLE
VEN
EN Input Threshold
Off Threshold
On Threshold
0.6
2
VHYS EN Input Hysteresis
100
MODULATOR
fO
Frequency
DMAX Maximum Duty Cycle
DMIN Minimum Duty Cycle
GVEA Error Amplifier Voltage Gain
GEA Error Amplifier Transconductance
PROTECTION
350 500 600
100
6
500
200
ILIM
Current Limit
Over-Temperature Shutdown Limit
tSS
Soft Start Interval
PWM OUTPUT STAGE
TJ Rising
TJ Falling
3.5
5.0
150
100
3
5
6.5
High-Side Switch On-Resistance
Low-Side Switch On-Resistance
VIN = 12V
VIN = 5V
VIN = 12V
VIN = 5V
97
130
166 200
18
23
30
36
Note:
3. Specifications in BOLD indicate an ambient temperature range of -40°C to +85°C. These specifications are guaranteed by design.
Units
V
V
mA
µA
V
%
%
nA
V
mV
kHz
%
%
V/V
µA / V
A
°C
ms
mΩ
mΩ
Rev. 1.1 November 2007
www.aosmd.com
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