AT1362A/B
Preliminary Product Information
Synchronous Buck Converter
With Power Good Detector & LDO
Electrical Characteristics
(VCC = 3.6V,T =+25℃ , unless otherwise noted. )
a
Values
Min. Typ. Max.
Parameter
Symbol
Condition
Unit
DC/DC CONVERTER
VCC UVLO
VUV
VUVHY
VCC
VCC=3V→2V Sweep
-
-
2.4
100
-
-
-
V
mV
V
UVLO Hysteresis width
Input Supply Range
Quiescent Current
2.5
-
6.0
-
IS
Active Mode
500
-
µA
%
Output1 Voltage Accuracy
VOUT1
-2
+2
Output1 Voltage
VOUT1-Line VCC=3.5V to 6.0V
-
-
0.1
0.5
0.5
1.0
%
%
line-regulation
Output1 Variation
with Temperature
T =-20℃ to +85℃
a
Feedback current
IOUT1
-
6
-
uA
A
Current Limit
ICL1
IO
VIN=5V, VOUT1=2.5V/1.8V
0.6
0.7
0.8
VIN=5V, VOUT1=2.5V/1.8V,
Maximum Output Current
Oscillator Frequency
400
-
-
mA
L=4.7uH
fosc1 Vout1=2.5V/1.8V
fosc2 Vout1=0V
0.8
-
1.0
1.2
--
MHz
KHz
200
R
DS(ON) of P-Channel
MOSFET
RPFET ILX= 300mA
-
0.3
0.4
Ω
R
DS(ON) of N-Channel
RNFET ILX= -300mA
ISWL
-
-
0.25 0.35
Ω
MOSFET
SW Leakage Current
±0.1
±1
µA
CONTROL BLOCK
PG on voltage
VPGON IPG=1mA
VPGTHYS
-
-
-
-
80
-
0.4
-
V
PG Hysteresis width
mV
uA
PG pin leak current
IPGTLK VPG=5.0V
1
LDO control on Hysteresis
width
DELAY Pin Charge Current IDELAY
VLDTHYS
-
80
-
mV
uA
0.8
1.0
1.2
LDO
Output2 Voltage Accuracy
VOUT2
ICL2
-2
-
-
+2
-
%
mA
mV
mV
%
Current Limit
450
Dropout Voltage
VDV
IOUT2=400mA
-
-
-
-
-
400
15
600
50
Load Regulation
∆VOUT2 IOUT2=1mA→ 100mA
Line Regulation
LR
IOUT2=100mA, VOUT1=3.6V→6.0V
0.05 0.25
Ripple Rejection Rate
OUT2 Leakage Current
PSRR IOUT2=100mA, f=1kHz
IOUT2LK
60
6
-
-
dB
uA
7F, No.9, Park Avenue II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
5/30/2006 REV:1.0
Fax: 886-3-563-0879
WWW: http://www.aimtron.com.tw
Email: service@aimtron.com.tw
4
AIMTRON [ AIMTRON TECHNOLOGY ]
