SE5509ALG-LF SEAWARD [Seaward Electronics Inc.], SE5509ALG-LF Datasheet

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SE5509ALG-LF

Manufacturer Part Number
SE5509ALG-LF
Description
300mA Low Power Low Noise LDO CMOS Voltage Regulator
Manufacturer
SEAWARD [Seaward Electronics Inc.]
Datasheet
1.SE5509ALG-LF.pdf (7 pages)

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Part Number
Manufacturer
Quantity
Price
Company:
Meier Automation Equipment Co., Limited Meier Automation Equipment Co., Limited
Part Number:
SE5509ALG-LF
Manufacturer:
SEAWARD
Quantity:
20 000
Company:
Meier Automation Equipment Co., Limited Meier Automation Equipment Co., Limited
Part Number:
SE5509ALG-LF-3.3
Manufacturer:
SEI
Quantity:
20 000
Revision 12/5/2008
Description
linear regulators are designed for portable battery
powered applications, which require low power
consumption, low noise environment, and low
dropout voltage. Each device contains a bandgap
voltage reference, an error amplifier, a PMOS
power transistor, and resistors for setting output
voltage, and current limit and temperature limit
protection circuits.
with low cost capacitors and requires a minimum
output capacitor of 1.0μF. The output voltages
range from 1.3V to 4.4V in 100mV increments.
Standard voltage versions are 1.5, 1.8, 2.5, 2.8, 3.0,
and 3.3V.
Pin Configuration
Block Diagram
The SE5509 has been designed to be used
The SE5509 series of fixed output low dropout
Preliminary and all contents are subject to change without prior notice
© Seaward Electronics Inc., 2006. • www.seawardinc.com.cn • Page 1
LDO CMOS Voltage Regulator
300mA Low Power Low Noise
Features
Application
Ordering Information
SE5509
Typical 200mV Dropout Voltage at 150mA.
Fast Enable Turn-On Time of 20μs (Typ.)
Excellent Line and Load Regulation.
High Accuracy Output Voltage of 2%.
Ultra-Low Ground Current at 20μA (Typ.)
Disable Current Less than 0.1μA (Typ.)
Over Current and thermal Protection.
No Reverse Current.
Standard SOT-23-5L and TSOP-5 Package.
USB removable devices
MPEG4 devices
Wireless LAN’s
Hand-Held Instrumentation.
Portable DVD players
Digital camera
_ _ _
Pin (1=>5):
Output Voltage: A: V
G: V
IN
Package:
L: SOT-23-5L / TSOP-5
/GND/EN/BYPASS/V
C: V
D: V
B: V
E: V
F: V
SE5509
OUT
OUT
OUT
OUT
OUT
OUT
= 2.8V
= 1.5V
= 3.3V
= 2.5V
= 1.8V
= 3.0V
OUT

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SE5509ALG-LF Summary of contents

Page 1

Description The SE5509 series of fixed output low dropout linear regulators are designed for portable battery powered applications, which require low power consumption, low noise environment, and low dropout voltage. Each device contains a bandgap voltage reference, an error amplifier, ...

Page 2

... Load Regulation OUT 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 300mA Low Power Low Noise LDO CMOS Voltage Regulator Ordering Information 3.3V SE5509ALG-LF 509Alz 2.8V SE5509BLG-LF 509BLz 2.5V SE5509CLG-LF 509CLz 1.8V ...

Page 3

Electrical Characteristics (Continued 5V 2.2μ 2.2μ OUT Symbol Parameter Output Voltage ΔV /ΔT Temperature OUT Coefficient Dropout Voltage V – OUT (V >3.0V) OUT T Thermal Protection PROTECTION PSRR ...

Page 4

Line Regulation (IOUT=10mA) 3.40 3.35 3.30 3.25 3.20 3.15 3.60 4.10 VIN (V) IQ VS. IOUT(VOUT=3.3V 100 150 IOUT (mA) Load Transient Response (VOUT = 3.3V) (IOUT=10mA to 300mA) PSRR (VIN=VOUT+1V+0.5Vp-pAC，IOUT=50mA，Cbypass=0.1μF) ...

Page 5

Application Hints Like any low dropout regulator, SE5509 requires external capacitors to ensure stability. external capacitors must be carefully selected to ensure performance. Input Capacitor An input capacitor of at least 1μF is required. Ceramic or Tantalum can be used. ...

Page 6

OUTLINE DRAWING SOT-23- OUTLINE DRAWING TSOP Revision 12/5/2008 Preliminary and all contents are subject to change without prior notice © Seaward Electronics Inc., 2006. • ...

Page 7

Customer Support Seaward Electronics Incorporated – China Section B, 2nd Floor, ShangDi Scientific Office Complex, #22 XinXi Road Haidian District, Beijing 100085, China Tel: 86-10-8289-5700/01/05 Fax: 86-10-8289-5706 Seaward Electronics Corporation – Taiwan 2F, #181, Sec. 3, Minquan East Rd, Taipei, ...

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