AOZ1015
Rev. 1.4 April 2011 www.aosmd.com Page 4 of 15
Electrical Characteristics
T
A
= 25°C, V
IN
= V
EN
= 12V, V
OUT
= 3.3V unless otherwise specified.
(3
)
Note:
3. Specification in BOLD indicate an ambient temperature range of -40°C to +85°C. These specifications are guaranteed by design.
Symbol Parameter Conditions Min. Typ. Max. Units
V
IN
Supply Voltage 4.5 16 V
V
UVLO
Input Under-Voltage Lockout Threshold V
IN
Rising
V
IN
Falling
4.00
3.70
V
I
IN
Supply Current (Quiescent) I
OUT
= 0, V
FB
= 1.2V, V
EN
> 1.2V 23mA
I
OFF
Shutdown Supply Current V
EN
= 0V 110µA
V
FB
Feedback Voltage 0.782 0.8 0.818 V
Load Regulation 0.5 %
Line Regulation 0.5 %
I
FB
Feedback Voltage Input Current 200 nA
ENABLE
V
EN
EN Input Threshold Off Threshold
On Threshold 2.0
0.6
V
V
HYS
EN Input Hysteresis 100 mV
I
EN
EN Input Current 1µA
MODULATOR
f
O
Frequency 400 500 600 kHz
D
MAX
Maximum Duty Cycle 100 %
D
MIN
Minimum Duty Cycle 6%
Error Amplifier Voltage Gain 500 V
/ V
Error Amplifier Transconductance 200 µA
/ V
PROTECTION
I
LIM
Current Limit 2 3.6 A
V
PR
Output Over-Voltage Protection
Threshold
Off threshold
On threshold
960
860
mV
T
J
Over-Temperature Shutdown Limit 150 °C
t
SS
Soft Start Interval 2.2 ms
OUTPUT STAGE
High-Side Switch On-Resistance V
IN
= 12V
V
IN
= 5V
97
166
130
200
mΩ
