se5509b seawardinc, se5509b Datasheet - Page 3

• Manufacturer Part Number: se5509b
• Description: 300ma Low Power Low Noise Ldo Cmos Voltage Regulator
• Manufacturer: seawardinc

Revision 4/30/2008
Electrical Characteristics (Continued)
V
T
Note 1: Exceeding the absolute maximum rating may damage the device.
Note 2: The device is not guaranteed to function outside its operating rating.
Note 3: The maximum allowable power dissipation at any T
Note 4: Output voltage temperature coefficient is the worst case voltage change divided by the total temperature range.
Note 5: Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested
Note 6: Dropout voltage is defined as the input to output differential at which the output voltage drops 100mV below its
Note 7: The Cin or Cout should be chosen carefully. Please refer to the Application Hints
V
ΔV
IN
PROTECTION
Symbol
IN
V
PSRR
= 5V; C
I
OUT
TH(EN)
LIMIT
– V
I
Q
(T
and the regulator will go into thermal shutdown. See “Thermal Consideration” section for details
for load regulation in the load range from 0.1mA to 300mA. Changes in output voltage due to heating effects are
covered by the thermal regulation specification.
nominal value measured at 0.8V differential.
/ΔT
J(MAX)
OUT
IN
= 2.2μF; C
– T
Dropout Voltage
Thermal Protection
Quiescent Current
Threshold Voltage
Ripple Rejection
A
Output Voltage
)/Θ
Current Limit
Temperature
Enable Input
(V
Parameter
Coefficient
OUT
JA
Preliminary and all contents are subject to change without prior notice
OUT
. Exceeding the maximum allowable power dissipation will result in excessive die temperature,
= 2.2μF（
>3.0V)
© Seaward Electronics Inc., 2006. • www.seawardinc.com • Page 3
Electrolytic capacitor
(6)
Voltage Raising, Output Turns On, Logic High
Voltage Falling, Output Turns Off, Logic Low
f =10kHz,I
LDO CMOS Voltage Regulator
300mA Low Power Low Noise
Thermal Protection Temperature
Protection Hysterisys
OUT
I
I
I
OUT
OUT
Conditions
OUT
V
V
=50mA,C
EN
Note 4
）; I
EN
= 150mA
= 300mA
= 10mA
= 0.4V
= V
A
OUT
(ambient temperature) is calculated using: P
= 10mA; T
IN
bypass
=0.1μF
J
= 25°C; unless otherwise noted
Min
1.6
--
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0.01
Typ
110
250
150
600
0.1
20
70
35
--
--
8
SE5509B
Max
0.4
--
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--
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--
--
D(MAX)
mV/°C
=
Unit
mV
mA
dB
μA
°C
V