SE5218ALG-LF SEAWARD [Seaward Electronics Inc.], SE5218ALG-LF Datasheet - Page 3

• Manufacturer Part Number: SE5218ALG-LF
• Description: 500mA CMOS LDO Voltage Regulator
• Manufacturer: SEAWARD [Seaward Electronics Inc.]

Revision 12/5/2008
Electrical Characteristics
V
T
V
ΔV
IN
Symbol
PROTECTION
IN
PSRR
V
ΔV
ΔV
=5V; V
V
I
OUT
TH(EN)
LIMIT
– V
OUT
I
Q
OUT
OUT
/ΔT
OUT
EN
=V
IN
; C
Line Regulation
Output Voltage
Output Voltage
Regulation
Current Limit
Temperature
Enable Input
IN
Parameter
Coefficient
Protection
Quiescent
Voltage
Threshold
Rejection
Accuracy
= 2.2μF; C
Thermal
Dropout
Current
Voltage
Ripple
Load
Preliminary and all contents are subject to change without prior notice.
© Seaward Electronics, Inc., 2005. • www.seawardinc.com.cn • Page 3
(6)
OUT
(5)
= 2.2μF（
V
Voltage Decreasing, Output Turns Off,
Voltage Increasing, Output Turns On,
500mA CMOS LDO Voltage Regulator
IN
Thermal Protection Temperature
= (V
Electrolytic capacitor
or 2.5V
SE5218 – 1.5(V
SE5218 – 1.8(V
V
OUT
Protection Hysterisys
IN
+0.8)V
= (V
SE5218 – 2.5
SE5218 – 2.8
SE5218 – 3.0
SE5218 – 3.3
I
I
I
I
OUT
OUT
OUT
Conditions
OUT
V
Logic High
f = 120 Hz
Logic Low
V
OUT
EN
Note 4
EN
= 150mA
= 250mA
= 400mA
= 10mA
= 0.4V
+1)V to 5.5V
= V
(Preliminary)
I
I
IN
OUT
OUT
IN
IN
=3.3V)
=3.3V)
）; I
250mA
500mA
= 10mA to
= 10mA to
OUT
= 10mA; T
J
= 25°C; unless otherwise specified.
1.470
1.764
2.450
2.744
2.940
3.234
Min
1.6
--
--
--
--
--
--
--
--
--
--
--
0.025
Typ
175
320
600
150
800
1.5
1.8
2.5
2.8
3.0
3.3
1.0
1.0
1.5
0.3
15
20
59
65
--
--
1.530
1.836
2.550
2.856
3.060
3.366
Max
0.4
--
--
--
--
--
--
--
--
--
--
--
SE5218
mV/°C
Unit
%/V
mV
mA
dB
μA
°C
%
V
V