AIC1550
ELECTRICAL CHARACTERISTICS
(V
IN
=+3.6V, T
A
=+25°C, SYNC/MODE =GND,
SHDN
=IN, unless otherwise specified.) (Note1)
PARAMETER
Input Voltage Range
Output Adjustment Range
Feedback Voltage
Line Regulation
Load Regulation
SYMBOL CONDITIONS
V
IN
V
OUT
V
FB
Duty Cycle = 100% to 23%
I
OUT
= 0 to 800mA
I
FB
V
FB
= 1.4V,
V
IN
= 3.6V
V
IN
= 2.5V
V
IN
= 3.6V
V
IN
= 2.5V
1
-50
MIN
2.5
V
REF
0.735
0.75
+1
-1.3
0.01
0.32
0.38
0.32
0.38
1.5
35
0.1
-20
400
500
duty
MAX
UVLO
V
IH
V
IL
V
IN
rising, typical hysteresis is
85mV
SHDN
, SYNC/MODE, LIM
SHDN
, SYNC/MODE, LIM
SHDN
, SYNC/MODE, LIM
TYP
MAX
6.5
V
IN
0.765
UNITS
V
V
V
%
%
FB Input Current
50
0.65
0.65
nA
Ω
Ω
A
µA
µA
µA
KHz
KHz
%
P-Channel On-Resistance P
RDS(ON)
I
LX
= 100mA
N-Channel On-Resistance N
RDS(ON)
I
LX
= 100mA
P-Channel Current-Limit
Threshold
Quiescent Current
Shutdown Supply Current
LX Leakage Current
Oscillator Frequency
SYNC Capture Range
Maximum Duty Cycle
Undervoltage Lockout
Threshold
Logic Input High
Logic Input Low
Logic Input Current
SYNC/MODE Minimum
Pulse Width
f
OSC
(Note 2)
2.1
70
1
20
600
1000
SYNC/MODE = GND,
V
FB
= 1.4V, LX unconnected
SHDN
= LX = GND, includes LX
leakage current
V
IN
= 5.5V, V
LX
= 0 or 5.5V
0.1
500
100
1.9
2
0.4
-1
500
0.1
1
2.0
2.1
V
V
V
µA
nS
High or low
Note 1:
Specifications are production tested at TA=25°C. Specifications over the -40°C to 85°C operating
temperature range are assured by design, characterization and correlation with Statistical
Quality Controls (SQC).
Note 2:
Maximum specification is guaranteed by design, not production tested.
4
AIC [ ANALOG INTERGRATIONS CORPORATION ]
