AIC1550
ꢀELECTRICAL CHARACTERISTICS
(VIN=+3.6V, TA=+25°C, SYNC/MODE =GND, SHDN =IN, unless otherwise specified.) (Note1)
PARAMETER
SYMBOL CONDITIONS
MIN
2.5
TYP
MAX UNITS
Input Voltage Range
Output Adjustment Range
VIN
6.5
VIN
V
V
VOUT
VREF
Feedback Voltage
VFB
0.735 0.75 0.765
+1
V
Line Regulation
Load Regulation
Duty Cycle = 100% to 23%
OUT = 0 to 800mA
%
I
-1.3
%
FB Input Current
IFB
VFB = 1.4V,
-50
0.01
50
nA
VIN = 3.6V
VIN = 2.5V
VIN = 3.6V
VIN = 2.5V
0.32
0.38
0.32
0.38
0.65
P-Channel On-Resistance PRDS(ON) ILX = 100mA
N-Channel On-Resistance NRDS(ON) ILX = 100mA
Ω
Ω
0.65
P-Channel Current-Limit
(Note 2)
1
1.5
35
2.1
70
1
A
Threshold
SYNC/MODE = GND,
Quiescent Current
µA
µA
VFB = 1.4V, LX unconnected
SHDN = LX = GND, includes LX
leakage current
Shutdown Supply Current
0.1
LX Leakage Current
Oscillator Frequency
SYNC Capture Range
Maximum Duty Cycle
Undervoltage Lockout
Threshold
VIN = 5.5V, VLX = 0 or 5.5V
-20
400
500
100
0.1
20
µA
KHz
KHz
%
fOSC
500
600
1000
dutyMAX
UVLO
VIN rising, typical hysteresis is
85mV
1.9
2
2.0
0.1
2.1
V
Logic Input High
VIH
VIL
SHDN , SYNC/MODE, LIM
SHDN , SYNC/MODE, LIM
SHDN , SYNC/MODE, LIM
V
V
Logic Input Low
0.4
1
Logic Input Current
SYNC/MODE Minimum
Pulse Width
-1
µA
High or low
500
nS
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 ]
