150mA CMOS Low Noise
LDO Voltage Regulator
(Preliminary)
Electrical Characteristics (Continued)
V
IN
= 5V; C
IN
= 2.2μF; C
OUT
= 2.2μF; I
OUT
= 10mA; T
J
= 25°C; unless otherwise noted
SE5508
Symbol
Parameter
Dropout Voltage
(6)
Conditions
I
OUT
= 10mA
Min
--
--
--
--
--
--
--
Typ
20
200
500
150
20
62
0.1
Max
--
--
--
--
--
--
--
Unit
V
IN
– V
OUT
I
OUT
= 75mA
I
OUT
= 150mA
mV
T
PROTECTION
PSRR
Thermal Protection
Ripple Rejection
Thermal Protection Temperature
Protection Hysterisys
f = 120 Hz
V
EN
= 0V
°C
dB
I
Q
Quiescent Current
(VOUT = 1.5V)
V
EN
= V
TH(EN)
; I
OUT
= 10mA
(VOUT = 1.5V)
μA
--
1.6
--
300
50
--
--
--
--
--
0.4
--
V
TH(EN)
I
LIMIT
Enable Input
Threshold Voltage
Current Limit
Voltage Increasing, Output Turns On, Logic High
Voltage Decreasing, Output Turns Off, Logic Low
V
mA
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
A
(ambient temperature) is calculated using: P
D(MAX)
=
(T
J(MAX)
– T
A
)/Θ
JA
. Exceeding the maximum allowable power dissipation will result in excessive die temperature,
and the regulator will go into thermal shutdown. See “Thermal Consideration” section for details
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
for load regulation in the load range from 0.1mA to 150mA.
covered by the thermal regulation specification.
Note 6:
Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its
nominal value measured at 1V differential.
Changes in output voltage due to heating effects are
Preliminary and all contents are subject to change without prior notice.
© Seaward Electronics, Inc., 2005. • www.seawardinc.com.cn • Page 3
SEAWARD [ Seaward Electronics Inc. ]
