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參數(shù)資料
| 型號： | AT1367DN |
| 廠商： | Aimtron Technology Corp. |
| 英文描述： | 1MHz, 800mA Synchronous Buck Converter With Power Good Detector & LDO |
| 中文描述： | 1MHz的，800mA的同步降壓轉換器與電源良好探測器 |
| 文件頁數(shù)： | 4/14頁 |
| 文件大?。?/td> | 659K |
| 代理商： | AT1367DN |
AT1367A/B/C/D
Preliminary Product Information
1MHz, 800mA Synchronous Buck Converter
With Power Good Detector & LDO
Electrical Characteristics
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
(VCC = 3.6V,Ta =+25
℃
, unless otherwise noted. )
Values
Parameter
Symbol
Condition
Min. Typ. Max.
Unit
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
V
UV
V
UVHY
V
CC
I
S
V
OUT1
VCC=3V
→
2V Sweep
-
-
2.4
100
-
500
-
-
-
V
mV
V
μ
A
%
Active Mode
2.5
-
-2
6.0
-
+2
V
OUT1-Line
VCC=3.5V to 6.0V
-
0.1
0.5
%
Ta =-20
℃
to +85
℃
-
0.5
1.0
%
I
OUT1
I
CL1
I
O
fosc1
fosc2
V
OUT1
=3.3V
VIN=5V, V
OUT1
=3.3V
VIN=5V, V
OUT1
=3.3V, L=4.7uH
Vout1=3.3V
Vout1=0V
-
6
-
uA
A
mA
MHz
KHz
1.10
-
0.8
-
1.25
-
1.0
200
1.50
800
1.2
--
Oscillator Frequency
RDS(ON)
MOSFET
RDS(ON) of N-Channel
MOSFET
SW Leakage Current
of
P-Channel
R
PFET
I
LX
= 600mA
-
0.3
0.4
R
NFET
I
LX
= -600mA
-
0.25
0.35
I
SWL
-
±
0.1
±
1
μ
A
CONTROL BLOCK
CTL Threshold
CTL leakage Current
PG on voltage
PG Hysteresis width
PG pin leak current
/PG on voltage
/PG Hysteresis width
/PG pin leak current
DELAY Pin Charge Current I
DELAY
V
CTL
I
CTL
V
PGON
I
PG
=1mA
V
PGTHYS
I
PGTLK
V
/PG
=5.0V
V
/PGON
I
/PG
=1mA
（
Metal Option
）
V
/PGTHYS
（
Metal Option
）
I
/PGTLK
V
/PG
=5.0V
（
Metal Option
）
V
CTL
=0V~2V sweep
（
Metal Option
）
0.3
V
CTL
=5.0V
（
Metal Option
）
1.0
6
-
80
-
-
80
-
0.5
1.5
-
0.4
-
1
0.4
-
1
0.8
V
μ
A
V
mV
uA
V
mV
uA
uA
-
-
-
-
-
-
-
0.3
LDO
Output2 Voltage Accuracy
Current Limit
Dropout Voltage
Load Regulation
Line Regulation
Ripple Rejection Rate
V
OUT2
I
CL2
V
DV
V
OUT2
I
OUT2
=1mA
→
100mA
LR
I
OUT2
=100mA, V
OUT1
=3.5V
→
6.0V
PSRR I
OUT2
=100mA, f=1kHz
I
OUT2LK
CTL=0V, V
OUT2
=2.5V/1.8V
（
Metal
Option
）
-2
450
-
-
-
-
-
-
+2
-
600
50
0.25
-
%
mA
mV
mV
%
dB
V
OUT1
=3.3V
I
OUT2
=400mA
400
15
0.05
60
OUT2 Leakage Current
-
6
-
uA
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