Dual 200mA CMOS
LDO Voltage Regulator
(Preliminary)
Electrical Characteristics (Continued)
V
IN
=Vout+1V; V
EN1
=V
EN2
=V
IN
; I
OUT
= 10mA, C
IN
= 2.2μF; C
OUT
= 2.2μF; T
J
= 25°C; unless otherwise specified
SE5221
Symbol
ΔV
OUT
/ΔT
Parameter
Output Voltage
Temperature
Coefficient
(4)
Conditions
Channel 1
Channel 2
Channel 1
I
OUT
= 100mA
I
OUT
= 200mA
I
OUT
= 100mA
I
OUT
= 200mA
Min
--
--
--
--
--
--
--
--
--
--
--
1.6
--
--
Typ
-0.025
-0.63
128
256
237
427
180
30
60
110
125
--
--
Max
--
--
--
--
--
--
--
--
--
--
--
--
Unit
mV/°C
V
IN
– V
OUT
Dropout Voltage
(6)
Channel 2
mV
T
PROTECTION
PSRR
I
Q
Thermal Protection
Ripple Rejection
Quiescent Current
Enable Input
Threshold Voltage
Shutdown Supply
Current
Current Limit
Thermal Protection Temperature
Protection Hysterisys
f = 100 Hz,
Vin=4.5V,Vp-p=1V,Iout=100mA
No Load
I
OUT
= 100mA (Both Channel)
Voltage Increasing, Output Turns
On, Logic High
Voltage Decreasing, Output Turns
Off, Logic Low
°C
dB
μA
V
TH(EN)
V
0.4
5
--
--
uA
mA
I
leak
I
MAX
Channel 1
Channel 2
200
200
Note 1:
Exceeding the absolute maximum rating may damage the device.
Note 2:
The device is not guaranteed to function outside its operating range.
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 10mA to 200mA.
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
Revision 9/4/2008
Preliminary and all contents are subject to change without prior notice
© Seaward Electronics Inc., 2007. • www.seawardinc.com • Page 4
SEAWARD [ Seaward Electronics Inc. ]
