Electrical Characteristic
V
IN,MAX
≤
8V, V
IN,MIN
– V
OUT
= 1.5V, I
OUT
= 10mA, C
IN
= 10µF, C
OUT
= 22µF, T
A
= 25°C, unless otherwise
specified.
Symbol
Parameter
Test Condition
SE8117BT15
SE8117BT18
V
O
Output Voltage
(1)
Min
1.470
1.764
2.450
3.234
4.900
(-2%)
--
--
--
--
Typ
1.5
1.8
2.5
3.3
5.0
Max
1.530
1.836
2.550
3.366
5.100
Units
SE8117BT25
SE8117BT33
SE8117BT50
V
V
REF
V
SR
V
LR
I
Q
I
ADJ
∆I
ADJ
V
D
I
O
I
CL
T
C
OTP
V
N
R
A
Notes:
Reference Voltage
(1)
(Adj. Voltage Version)
Line Regulation
(1)
Load Regulation
(1)
Quiescent Current
(2)
Adjust Pin Current
Adjust Pin Current
Change
Dropout Voltage
(3)
Minimum Load Current
Current Limit
Temperature Coefficient
Thermal Protection
RMS Output Noise
Ripple Rejection Ratio
(V
IN
- V
OUT
) = 1.5V
I
OUT
= 10mA
V
OUT
+ 1.5V < V
IN
< 8V
I
OUT
= 10mA
(V
IN
- V
OUT
) = 1.5V
10mA
≤
I
OUT
≤
1A
Fixed Output Version
1.250 (+2%)
0.3
0.5
3
65
14
1.3
0.4
1.8
0.07
175
0.003
57
--
--
--
--
--
--
--
--
--
--
--
--
V
%
%
mA
μA
μA
V
mA
A
%/°C
°C
%V
O
dB
V
OUT
+ 1.5V < V
IN
< 8V
10mA
≤
I
OUT
≤
1A
I
OUT
= 1A
--
--
--
--
--
--
T
A
= 25°C, 10Hz
≤
f
≤
10kHz
f = 120Hz,
C
OUT
= 22μF (Tantalum),
(V
IN
- V
OUT
) = 3V, I
OUT
= 100mA
--
--
1. Low duty cycle pulse testing with which T
J
remains unchanged.
2. The I
Q
of SE8117BT15 is 1.2mA(Typ.)
3.
The dropout voltage is the input/output differential at which the circuit ceases to regulate against further
reduction in input voltage. It is measured when the output voltage has dropped 98% from the nominal
value obtained at V
IN
= V
OUT
+1.5V.
Revision 7/28/2008
Preliminary and all contents are subject to change without prior notice.
© Seaward Electronics, Inc., 2006. • www.seawardinc.com • Page 2
SEAWARD [ Seaward Electronics Inc. ]
