AT1367A/B/C/D
Preliminary Product Information
1MHz, 800mA Synchronous Buck Converter
With Power Good Detector & LDO
Electrical Characteristics
(VCC = 3.6V,Ta =+25℃ , unless otherwise noted. )
Parameter
DC/DC CONVERTER
VCC UVLO
UVLO Hysteresis width
Input Supply Range
Quiescent Current
Output1 Voltage Accuracy
Output1 Voltage
line-regulation
Output1 Variation
with Temperature
Feedback current
Current Limit
Maximum Output Current
Oscillator Frequency
RDS(ON) of P-Channel
MOSFET
RDS(ON) of N-Channel
MOSFET
SW Leakage Current
Symbol
Condition
Values
Unit
Min. Typ. Max.
-
-
2.5
2.4
100
-
500
-
0.1
0.5
6
1.25
-
1.0
200
0.3
0.25
±0.1
1.0
6
-
80
-
-
80
-
0.5
-
-
400
15
0.05
60
6
-
-
6.0
-
+2
0.5
1.0
-
1.50
800
1.2
--
0.4
0.35
±1
1.5
-
0.4
-
1
0.4
-
1
0.8
+2
-
600
50
0.25
-
-
V
mV
V
µA
%
%
%
uA
A
mA
MHz
KHz
Ω
Ω
µA
V
µA
V
mV
uA
V
mV
uA
uA
%
mA
mV
mV
%
dB
uA
V
UV
V
UVHY
V
CC
I
S
V
OUT1
VCC=3V→2V Sweep
Active Mode
-
-2
-
-
-
1.10
-
0.8
-
-
-
-
V
OUT1-Line
VCC=3.5V to 6.0V
Ta =-20℃ to +85℃
I
OUT1
I
CL1
I
O
fosc1
fosc2
R
PFET
R
NFET
I
SWL
V
OUT1
=3.3V
VIN=5V, V
OUT1
=3.3V
VIN=5V, V
OUT1
=3.3V, L=4.7uH
Vout1=3.3V
Vout1=0V
I
LX
= 600mA
I
LX
= -600mA
CONTROL BLOCK
CTL Threshold
V
CTL
CTL leakage Current
I
CTL
PG on voltage
V
PGON
PG Hysteresis width
V
PGTHYS
PG pin leak current
I
PGTLK
/PG on voltage
V
/PGON
/PG Hysteresis width
V
/PGTHYS
/PG pin leak current
I
/PGTLK
DELAY Pin Charge Current I
DELAY
（Metal
Option）
0.3
V
CTL
=0V~2V sweep
V
CTL
=5.0V（Metal
Option）
-
I
PG
=1mA
-
-
V
/PG
=5.0V
-
I
/PG
=1mA（Metal
Option）
-
（Metal
Option）
-
V
/PG
=5.0V（Metal
Option）
-
0.3
-2
450
-
-
-
-
-
LDO
Output2 Voltage Accuracy
Current Limit
Dropout Voltage
Load Regulation
Line Regulation
Ripple Rejection Rate
OUT2 Leakage Current
V
OUT2
I
CL2
V
DV
∆V
OUT2
LR
PSRR
I
OUT2LK
V
OUT1
=3.3V
I
OUT2
=400mA
I
OUT2
=1mA→ 100mA
I
OUT2
=100mA, V
OUT1
=3.5V→6.0V
I
OUT2
=100mA, f=1kHz
CTL=0V, V
OUT2
=2.5V/1.8V（Metal
Option）
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
3/2/2006 REV:1.2
Email:
service@aimtron.com.tw
4
AIMTRON [ AIMTRON TECHNOLOGY ]
