APW7093
Electrical Characteristics
(V
IN
=V
CC
=3.3V, V
EXTREF
=+1.1V, T
A
=-45 to +85
o
C, unless otherwise noted, Typical values are at T
A
=+25
o
C.)
Symbol
Parameter
Test Conditions
APW7093
Min Typ Max
3.0
V
IN
=V
CC
=+3.0V to +5.5V,
I
LOAD
=0,V
EXTREF
=1.25V (Note2)
I
LOAD
=-3A to +3A, V
EXTREF
=+1.25V
V
REF
-
0.01
-12
20
V
IN
-
1.7
5.5
+12
Unit
V
mV
mV
V
V
mV
mΩ
m
Ω
A
MHz
mA
15
µA
°C
2.7
250
V
nA
µ
s
µs
µ
s
5
6
µ
A
mA
+1
0.8
SHDN Logic Levels
2.0
µA
V
V
IN
, V
CC
Input Voltage
Feedback Voltage Accuracy
(V
FB
–V
EXTREF
)
∆
V
FB
Feedback Load Regulation Error
V
EXTREF
External Reference Voltage Range V
IN
=V
CC
=+3.0 to +5.5V
V
REF
Reference Voltage
Reference Load Regulation
R
PMOS
R
NMOS
I
LIMIT
f
SW
I
CC
I
IN
I
SHDN
PMOS Switch On-Resistance
NMOS Switch On-Resistance
Current Limit Threshold
Switching Frequency
No Load Supply Current
Shutdown Supply Current
Thermal Shutdown Threshold
UVLO
I
FB
Under Voltage Lockout Threshold
FB Input Current
I
REF
= -1µA to +10µA
I
LX
=0.5A
I
LX
=0.5A
V
IN
> V
LX
(Note3)
V
IN
=+4.5V
V
IN
=+3.0V
V
IN
=+4.5V
V
IN
=+3.0V
1.07 1.10 1.12
8
0
2
0.3
70
90
50
60
3.5
4.1
2
140
180
100
120
4.7
1
1
32
<1
150
2.5
0
2.6
60
f
SW
=500kHz
f
SW
=500kHz
SHDN = GND, I
CC
+ I
IN
Hysteresis =15°C
V
CC
falling, hysteresis = 90mV
V
FB
=V
EXTREF
+0.1V
R
TOFF
=30.1k
Ω
0.40 0.44 0.48
1.10 1.20 1.30
4.3
4.8
4×TOFF
5.3
T
OFF
Off-Time
R
TOFF
=110kΩ
R
TOFF
=499kΩ
Startup Off-Time
T
ON
I
SS
I
SS
On-Time
SS Source Current
SS Sink Current
SHDN Input Current
V
IL
V
IH
I
OUT(RMS)
Maximum Output RMS Current
Copyright
©
ANPEC Electronics Corp.
Rev. A.5 - Jun., 2005
4
(Note3)
0.34
4
V
SS
=1V
V
SHDN
=0, V
CC
2
-1
3.1 A
RMS
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