FS8854
350mA LDO Linear Regulator
General Description
The FS8854 is a low-dropout linear regulator that
operations in the input voltage range from +2.5V
to +6.5V and delivers 350mA output current.
The high-accuracy output voltage is preset at an
internally trimmed voltage 2.5V or 3.3V. Other
output voltages can be mask-optioned from 1.3V
to 5.0V with 100mV increment, except
FS8854-29Cx which has 2.85V output voltage.
The FS8854 consist of a 1.25V bandgap
reference, an error amplifier, and a P-channel
pass transistor. Other features include
short-circuit protection and thermal shutdown
protection. The FS8854 devices are available in
TO-92, SOT-89 and SOT-23 packages.
Ordering Information
FS8854-xx x x
Package
A : SOT-23
B : SOT-23
C : SOT-23
V : SOT-23
D : TO-92
E : TO-92
F : TO-92
W : TO-92
K : SOT-89
L : SOT-89
I : SOT-89
Y : SOT-89
Pin Out
1.IN
1.GND
1.GND
1.OUT
1.IN
1.GND
1.OUT
1.GND
1.IN
1.GND
1.OUT
1.GND
2.GND
2.IN
2.OUT
2.GND
2.GND
2.IN
2.GND
2.OUT
2.GND
2.IN
2.GND
2.OUT
3.OUT
3.OUT
3.IN
3.IN
3.OUT
3.OUT
3.IN
3.IN
3.OUT
3.OUT
3.IN
3.IN
Temperature Range
C : Commercial Standard
P : Commercial Standard, Lead(Pb) Free and
Phosphorous(P) Free Package
Output Voltage
13 : 1.3V
14 : 1.4V
15 : 1.5V
16 : 1.6V
17 : 1.7V
18 : 1.8V
19 : 1.9V
20 : 2.0V
21 : 2.1V
22 : 2.2V
23 : 2.3V
24 : 2.4V
25 : 2.5V
26 : 2.6V
27 : 2.7V
28 : 2.8V
29 : 2.85V
30 : 3.0V
31 : 3.1V
32 : 3.2V
33 : 3.3V
34 : 3.4V
35 : 3.5V
36 : 3.6V
37 : 3.7V
38 : 3.8V
39 : 3.9V
40 : 4.0V
41 : 4.1V
42 : 4.2V
43 : 4.3V
44 : 4.4V
45 : 4.5V
46 : 4.6V
47 : 4.7V
48 : 4.8V
49 : 4.9V
50 : 5.0V
Features
Low dropout voltage 500mV at 350mA
(Typ.)
Up to
±35mV
output voltage accuracy
Preset at 2.5V, 3.3V
Mask option from 1.3V to 5.0V
Small output capacitor
Output current limit
Thermal overload shutdown
protection
TO-92, SOT-89 and SOT-23 Package
Applications
Battery Powered Equipment
Palmtops
Portable Cameras and Video Recorders
Reference Voltage Sources
Post Regulator for Switching Power
Note :
Mask option output types are
available by order only.
Fortune Semiconductor Corp.
http://www.fsc.com.tw
TEL : +886-2-2809-4742
FAX: +886-2-2809-4874
1/13
TD-0410025
Rev. 1.4
FS8854
350mA LDO Linear Regulator
Pin Configurations
Part No. Pin 1 Pin 2 Pin 3
FS8854
-xxxD
IN
GND OUT
IN
OUT
IN
IN
1
TO-92
Part No. Pin 1 Pin 2 Pin 3
3
SOT-89
2
FS8854
-xxxK
IN
GND OUT
IN
OUT
IN
IN
FS8854
xxCxxxxx
1
2
3
FS8854
GND
-xxxE
(BOTTOM VIEW)
FS8854
OUT GND
-xxxF
FS8854
GND OUT
-xxxW
FS8854
GND
-xxxL
FS8854
OUT GND
-xxxI
FS8854
GND OUT
-xxxY
SOT-23
Part No. Pin 1 Pin 2 Pin 3
FS8854
-xxxA
IN
GND OUT
IN
OUT
IN
IN
FS8854
GND
-xxxB
.....
4xxx
W
....
1
2
3
FS8854
GND OUT
-xxxC
FS8854
OUT GND
-xxxV
Package Marking Information
SOT-23
EX：FS8854-33CC
.....
TO-92 & SOT-89
EX：FS8854-33CL
FS8854
33CLxxxx
xxxx：Date Code
433C
...
Top Point：Lot No.
Bottom Point：Year
w : week, A~Z & A ~ Z
W
EX：FS8854-33PC
.....
EX：FS8854-33PL
FS8854
33PLxxxx
xxxx：Date Code
433C
...
.
W
Top Point：Lot No.
Bottom Point：Year
w : week, A~Z & A ~ Z
A dot after marking : Pb/P Free
Fortune Semiconductor Corp.
http://www.fsc.com.tw
TEL : +886-2-2809-4742
FAX: +886-2-2809-4874
2/13
TD-0410025
Rev. 1.4
FS8854
350mA LDO Linear Regulator
Pin Description
Part NO.
FS8854-xxCA
FS8854-xxCB
FS8854-xxCC
FS8854-xxCV
FS8854-xxCD
FS8854-xxCE
FS8854-xxCF
FS8854-xxCW
FS8854-xxCK
FS8854-xxCL
FS8854-xxCI
FS8854-xxCY
Symbol
GND
Ground pin.
Description
IN
Regulator input pin.
OUT
Regulator output pin.
IN
is the regulator input pin. Supply voltage can range from 2.5V to 6.5V. Bypass with a 1µF capacitor to
GND.
OUT
is the output voltage pin. Sources up to 350mA. Bypass with a 3.3µF capacitor to GND.
GND
provides the reference for all voltages.
Functional Block Diagram
IN
Current Limit
Shutdown
Logic
Thermal
Protection
OUT
R1
1.25V
Bandgap
Reference
R2
GND
Fortune Semiconductor Corp.
http://www.fsc.com.tw
TEL : +886-2-2809-4742
FAX: +886-2-2809-4874
3/13
TD-0410025
Rev. 1.4
FS8854
350mA LDO Linear Regulator
Typical Application Circuit
FS8854
Absolute Maximum Ratings
Input voltage V
IN
to GND ------------------------------------------------------------------------------------------------------7V
Output current limit, I
(LIMIT)
------------------------------------------------------------------------------------------------ 0.6A
Continuous power dissipation, P
D
(∆T= T
J
-T
A
= 100°C)
SOT-23
----------------------------------------------------------------------------------------------------------------------------------------
0.31W
SOT-89
----------------------------------------------------------------------------------------------------------------------------------------
0.55W
TO-92
----------------------------------------------------------------------------------------------------------------------------------------
0.55W
* The power dissipation values are based on the condition that junction temperature T
J
and ambient
temperature T
A
difference is 100°C.
Junction Temperature, T
J
----------------------------------------------------------------------------------------------- +155°C
Storage temperature range, T
STG
---------------------------------------------------------------------- -55°C to +150°C
Operating junction temperature range ---------------------------------------------------------------- -40°C to +125°C
Lead temperature (soldering, 10sec) ------------------------------------------------------------------------------- 260°C
* Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device.
These are stress ratings only, and function operation of the device at these or any other conditions beyond those
indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated
conditions for extended periods may affect device reliability.
Fortune Semiconductor Corp.
http://www.fsc.com.tw
TEL : +886-2-2809-4742
FAX: +886-2-2809-4874
4/13
TD-0410025
Rev. 1.4
FS8854
350mA LDO Linear Regulator
Electrical Characteristics
(T
A
=25℃, unless otherwise noted.)
Symbol
V
IN
V
OUT
∆
V
OUT
I
MAX
I
LIMIT
I
SC
I
Q
V
DROP
∆V
LINE
∆V
LOAD
Parameter
Input Voltage
Output Voltage
Output Voltage Accuracy
Maximum Load Current
Current Limit
Short-Circuit Current
Ground Pin Current
Dropout Voltage
Line Regulation
Load Regulation
Output Noise
Ripple Rejection
Thermal Shutdown
Temperature
Thermal Shutdown
Hysteresis
Thermal Resistance
V
OUT
=0V, V
IN
>V
OUT
+0.6V
I
LOAD
=0mA to 350mA, V
IN
=V
OUT
+0.6V
I
OUT
=100mA
I
OUT
=300mA
I
OUT
=350mA
V
OUT
+0.6V<V
IN
<6.5V, I
LOAD
=1mA
I
OUT
=0mA to 350mA
F=1Hz to 10KHz, C
OUT
=3.3µF
F=10KH
z
, C
OUT
=3.3µF
140
65
120
400
500
0.2
0.02
70
75
155
20
SOT-23
320
180
180
SOT-89
TO-92
V
IN
=V
OUT
+0.6V, I
OUT
=1mA
V
IN
>V
OUT
+0.6V, V
IN
≦6.5V
Test Conditions
Min
2.5
V
OUT
-
0.035
-35
350
0.6
160
90
145
480
600
0.3
0.03
Typ
V
OUT
Max
6.5
V
OUT
+
0.035
+35
Unit
V
V
mV
mA
A
mA
µA
mV
mV
mV
%/V
%/mA
µV
RMS
dB
°C
°C
°C/W
°C/W
°C/W
e
N
PSRR
T
SD
T
HYS
θ
JA
Fortune Semiconductor Corp.
http://www.fsc.com.tw
TEL : +886-2-2809-4742
FAX: +886-2-2809-4874
5/13
TD-0410025
Rev. 1.4
PCB Design
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