AT1366B
Preliminary Product Information
1MHz,800mA Synchronous Buck Converter
Electrical Characteristics
(VIN = 3.6V,Ta =+25℃ , unless otherwise noted. )
Parameter
Symbol
Condition
Min.
Values
Typ.
--
300
0.5
0.600
0.1
0.5
--
1.25
-
1.0
200
0.4
0.35
±0.1
1.0
±0.1
Max.
5.5
--
1
0.612
0.5
1.0
±200
1.50
800
1.2
--
0.5
0.45
±1
1.5
±1
Unit
Input Supply Range
Quiescent Current
*
Current in standby mode
Feedback Voltage
Feedback Voltage
line-regulation
Feedback Variation
with Temperature
Feedback current
Peak Inductor Current*
Maximum Output
Current*
Oscillator Frequency
RDS(ON) of P-Channel
MOSFET
RDS(ON) of N-Channel
MOSFET
SW Leakage Current
RUN Threshold
RUN leakage Current
V
IN
I
S
I
ST
V
FB
V
FB-Line
FB=0.6V, Iload=0A
Active Mode
RUN=0V, VIN=5.5V
Ta =-20℃ to +85℃
VCC=2.5V to 5.5V
Ta =-20℃ to +85℃
I
FB
I
PK
I
O
fosc1
fosc2
R
PFET
R
NFET
I
LSW
V
RUN
I
RUN
VIN=5V,VOUT=3.3V
VIN=5V±5%, VOUT=3.3V,
L=4.7µH
FB=0.6V
FB=0V
ISW=600mA
ISW=-600mA
RUN=0V,SW=0V or 5V,VIN=5V
2.5
--
--
0.588
--
--
--
1.10
-
0.8
--
--
--
--
0.3
--
V
µA
µA
V
%
%
nA
A
mA
MHz
KHz
Ω
Ω
µA
V
µA
*
I
PK
=
I
O
+
(
V
−
V
OUT
)
×
t
ON
∆
I
=
I
O
+
IN
2
2
×
L
7F, No.9, PARK AVENUE II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
Fax: 886-3-563-0879
WWW:
http://www.aimtron.com.tw
1/18/2006 REV:1.2
Email:service@aimtron.com.tw
4
AIMTRON [ AIMTRON TECHNOLOGY ]
