Advanced Analog Technology, Inc.
October 2007
AAT7301
ELECTRICAL CHARACTERISTICS
( V
DD
= 4V~15V, T
C
=
–40
C
to 85
C
, Tested at T
C
= 25
C
,V
DD
= 12V, unless otherwise specified.)
General Item
PARAMETER
Input Voltage Range
Under Voltage Lockout
Under Voltage Lockout Hysteresis
Input Current into VDD
Shutdown Current into VDD
OSC Frequency
Short Detection Voltage
EN Low Level
EN High Level
Thermal Shutdown
SYMBOL
V
DD
V
UVLO
V
UHYS
I
DD-OFF
I
DD-ON
I
SHDN
Normal Operation
f
OSC
V
SHORT
V
IL
V
IH
T
SHDN
1.6
160
Short-Circuit
V
IN
Falling
0.67
V
IN
= 1.5V
V
IN
= 0.85V
V
DD
Falling
TEST CONDITION
MIN
4
3.33
3.48
150
1
5.5
1.70
380
47.5
0.70
0.73
0.4
10.00
TYP
MAX
15
3.63
UNIT
V
V
mV
mA
mA
µA
kHz
kHz
V
V
V
C
Buck PWM
PARAMETER
IN Regulation Voltage
IN to EO Transconductance
Maximum Duty Cycle
IN Input Leakage Current
Current-Sense Amplifier
Transresistance
SW Leakage Current
Switch On-Resistance
SW Current Limit
Soft-Start Time
I
L
R
CS
I
LSW
R
ON
I
LIMIT
t
SS
2.5
V
SW
= 15V
IN = 0V to 1.5V
−100.00
SYMBOL
V
IN
G
m
TEST CONDITION
IN = EO
IN = EO
MIN
0.88
35
TYP
0.90
80
90
0.01
0.2
0.1
200
3.7
700
5.0
+100.00
MAX
0.92
125
UNIT
V
µS
%
nA
V/A
µA
m
A
µs
–
Advanced Analog Technology, Inc. –
Version 1.00
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AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
