Rev1.0

Preliminary and all contents are subject to change without prior notice.

© Seaward Electronics, Inc., • www.seawardinc.com.cn • Page

1

9/4/2012

SE8803

Dual-Output Low Quiescent Current LDO

General Description

The SE8803 is a regulator with very low dropout

and dual-output. It specifically designed for today’s

electricity meter applications.

The SE8803 has two voltage inputs and two

voltage

outputs.

Output1

has

two

distinct

requirements for the power supplies for the electricity

meters.

The

first

requirement

is

low

power

consumption. The second is low noise.

Output1

uses a very unique design to achieve very low power

consumption while providing a very low noise power

output for electricity meter applications.

The second output is capable of delivering

150mA output current at a very low dropout voltage of

0.82V (Typical). The high precision output at 2%

ensures that the accurate power supply requirement

is

met

with

enough

margins

in

many

tough

applications.

Both of Outputs also provides Over Current

Protection (OCP) and Over Temperature Protection

(OTP), these features will ensure a safe operating

environment for electricity meter applications.

The SE8803 is available in

SOP and

PSOP8

package.

Features

Output 1



Output voltage of 5.0V (Typ.)



Low quiescent Current



Over-current/Over-temperature Protection.



Minimum external components.



Output voltage tolerances of ±2%



ESD rating is 2KV (Per MIL-STD-883D)

Output 2



Output voltage of 11.6V (Typ.)



Output current up to 150mA (Typ.)



Current limiting Over thermal Protection.



Minimum external components.



Output voltage tolerances of ±2%



Input Voltage up to 30V



Operating Junction Temperature Range

-40 to +125°C



ESD rating is 2KV (Per MIL-STD-883D)

Applications



Electricity meter.



Networking Equipments where low noise and

low power consumption is required.

Pin Configuration