300mA Low Power Low Noise
LDO CMOS Voltage Regulator
SE5509
Ordering/Marking Information
Package
Ordering Information
Marking Information
Starting with 9, a bar on top of 9 is for production
year 2005, and underlined 9 is for year 2006. The
naming pattern continues with consecutive
characters for later years.
3.3V SE5509ALG-LF 509Alz
2.8V SE5509BLG-LF 509BLz
2.5V SE5509CLG-LF 509CLz
1.8V SE5509DLG-LF 509DLz
1.5V SE5509ELG-LF 509ELz
SOT-23-5L / TSOP-5
(Top View)
VIN
GND
1
2
3
5
VOUT
The last character is the week code. (A-Z: 1-26,
a-z: 27-52)
ENABLE
4
BYPASS
A dot on top right corner is for lead-free process.
LF: lead free.
3.0V SE5509FLG-LF 509FLz
Absolute Maximum Rating (1)
Parameter
Symbol
VIN
Value
6
Units
Input Voltage
V
V
V
Enable Voltage
VEN
-0.3 to VIN
-0.3 to 4.6
Internally Limited (3)
Infinite
Output Voltage
VOUT
PD
Power Dissipation
Output Short Circuit Duration
Thermal Resistance, Junction-to-Ambient
Lead Temperature (Soldering, 5 sec.)
Junction Temperature
Storage Temperature
ΘJA
230
°C/W
°C
260
TJ
0 to +150
-40 to +150
°C
TS
°C
Operating Rating (2)
Parameter
Symbol
VIN
Value
5.5
Units
Supply Input Voltage Range
Junction Temperature Range
V
TJ
0 to +125
°C
Electrical Characteristics
VIN = 5V; VEN=VIN; CIN = 2.2μF; COUT = 2.2μF; IOUT = 10mA; TJ = 25°C; unless otherwise noted
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
SE5509 – 1.5 (VIN=1.8V)
SE5509 – 1.8 (VIN=3.3V)
SE5509 – 2.5
1.470
1.764
2.450
2.744
2.940
3.234
1.5
1.8
2.5
2.8
3.0
3.3
1.530
1.836
2.550
2.856
3.060
3.366
Output Voltage
Accuracy
VOUT
V
SE5509 – 2.8
SE5509 – 3.0
SE5509 – 3.3
ΔVOUT
ΔVOUT
Line Regulation
--
0.2
--
%/V
%
VIN = (VOUT + 0.8)V to 5.5V
VIN = (VOUT + 0.8)V or 2.5V
IOUT = 10mA to 300mA
Load Regulation (5)
--
2.0
--
Revision 12/5/2008
Preliminary and all contents are subject to change without prior notice
© Seaward Electronics Inc., 2006. • www.seawardinc.com.cn • Page 2
SEAWARD [ Seaward Electronics Inc. ]
