Advanced Analog Technology, Inc.
ELECTRICAL CHARACTERISTICS
( VDD = SHDN = 3V , FREQ = GND, TC =0o C to 85o C , unless otherwise specified. Typical values are
atTC = +25oC )
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Input Supply Voltage
Range
VDD
2.6
5.5
V
V
When VDD is rising, typical
VDD Under Voltage
Lockout
UVLO
2.25 2.38
2.52
hysteresis is 40mV; SW
remains off below this level
VIN = 1.3V, not switching
0.21
1.2
0.35
5.0
IDD
ISC
Quiescent Current
Shutdown Current
mA
VIN = 1.0V, switching
μA
SHDN = GND
0.1
10.0
ERROR AMPLIFIER
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Level to produce VEO
1.24V
VIN= 1.24V
=
=
VIN
Feedback Voltage
1.228 1.240 1.254
V
IIN
VDD Input Bias Current
0
40
nA
Level to produce VEO
1.24V,
2.6V < VDD < 5.5V
Feedback-Voltage Line
Regulation
0.05
0.15
240
%/V
g
ΔI = 5 μA
μA /V
Transconductance
Voltage Gain
70
105
m
AV
1,500
V/V
OSCILLATOR
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
FREQ = GND
FREQ = VDD
FREQ = GND
FREQ = VDD
540
640
740
fOSC
Frequency
kHz
%
1,100 1,320 1,600
79
85
85
92
DMAX
Maximum Duty Cycle
– 台灣類比科技股份有限公司 –
– Advanced Analog Technology, Inc. –
Page 3 of 18
V5.0
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
