參數(shù)資料
型號: LX8221DIDU
廠商: MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection
中文描述: DUAL OUTPUT, FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, PDSO10
封裝: ROHS COMPLIANT, PLASTIC, MSOP-10
文件頁數(shù): 3/9頁
文件大?。?/td> 218K
代理商: LX8221DIDU
Microsemi
Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 3
Copyright
2000
Rev. 1.0a, 2005-03-03
W
M
.
C
LX8221
Dual 150mA CMOS Low Dropout Regulator
P
RODUCTION
D
ATA
S
HEET
TM
B L O C K D I A G R A M
VOUT1
CB1
GND
+
-
CONTROL
LOGIC
THERMAL
SENSOR
CURRENT
LIMIT
VREF
VIN1
EN1
+
-
CONTROL
LOGIC
THERMAL
SENSOR
CURRENT
LIMIT
VREF
VIN2
EN2
ADJ
VOUT2
R E C O M M E N D E D O P E R A T I N G C O N D I T I O N S
LX8221
Typ
150
2.2
Parameter
Symbol
Min
2.5
1.0*
1.0*
Max
6
V
IN
+ 0.3V
Units
Input Operating Voltage Range (Note 1)
Enable Input Voltage Range
Continuous Output Current Range
Input Capacitor (V
IN
to GND)
Output Capacitor (V
OUT
to GND)
VIN1, VIN2
EN1/2
I
OUT
1,
I
OUT
1
C
IN
C
OUT
V
V
mA
μF
μF
Note 1: The minimum V
IN
has to meet two conditions V
IN
> 2.5V and V
IN
> V
OUT
+ V
DROPOUT
.
* Size your output capacitor to meet the transient loading requirement. If you have a very dynamic load, a lower ESR and larger value capacitor will improve the response to
these load steps.
E L E C T R I C A L C H A R A C T E R I S T I C S
Unless otherwise specified, the following specifications apply over the operating ambient temperature -40
°
C
T
A
125
°
C except
where otherwise noted. Test conditions:
V
IN
= V
OUT
+ 0.5V
;
I
OUT
=10mA
;
C
IN
= 1
μ
F; C
OUT
= 1
μ
F; T
J
= T
A
using low duty cycle pulse
testing methods.
LX1742
Typ
Parameter
Symbol
Test Conditions
Min
Max
Units
T
J
= 25°C
0mA
I
OUT1/2
150mA, (V
OUT1/2
+ 0.5V)
V
IN
6V
T
J
= 25°C
0mA
I
OUT1/2
150mA, 2.85V
V
IN
6V
-1
-2.5
1.163
1.140
1
2.5
1.187
1.210
Output Voltage (2.5, 2.7, 3.0, ADJ)
VOUT1/2
%
Adjust Reference Voltage
V
ADJ
1.175
V
Line Regulation
IN
O
V
V
V
RV
(V
OUT1/2
+ 0.5V)
V
IN
6V, I
OUT1/2
= 0.1mA
0.04
0.15
%/V
T
J
= 25°C, 0.5mA
I
OUT1/2
150mA
0.5mA
I
OUT1/2
100mA
I
LOAD1/2
= 1mA,
VO
= -1%
I
LOAD1/2
= 50mA,
VO
= -1%
I
LOAD1/2
= 100mA,
VO
= -1%
I
LOAD1/2
= 150mA,
VO
= -1%
EN1
= High, EN2
= High
EN1
= Low, EN2
= Low
0.5
Load Regulation
O
O
I
V
V
RI
1.5
%V
NOM
0.050
0.175
0.3
0.4
440
1
0.175
0.25
280
Dropout Voltage
(
(Note 2)
)
O
IN
V
V
V
DO
V
I
GND
I
STBY
Ground Pin Current
μA
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