FS8853
300 mA LDO Linear Regulator
General Description
The FS8853 is a low-dropout linear regulator that
operations in the input voltage range from +2.5V
to +9.0V and delivers 300mA 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 1.5V
to 5.0V with 100mV increment, except
FS8853-29Cx which has 2.85V output voltage.
The FS8853 consists 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 FS8853 devices are available in
TO-92, SOT-89 and SOT-23 packages.
Ordering Information
FS8853-xx x x
Package
A : SOT-23
B : SOT-23
C : SOT-23
E : TO-92
L : SOT-89
I : SOT-89
1.IN
1.GND
1.GND
1.GND
1.GND
1.OUT
Pin Out
2.GND
2.IN
2.OUT
2.IN
2.IN
2.GND
3.OUT
3.OUT
3.IN
3.OUT
3.OUT
3.IN
Temperature Range
C : Commercial Standard
P : Commercial Standard, Lead(Pb) Free and
Phosphorous(P) Free Package
Output Voltage
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 400mV at 300mA (Typ.)
Up to
±35mV
output voltage accuracy (V
IN
≦
7V)
Preset at 2.5V, 3.3V
Mask options from 1.5V to 5.0V
Quiescent current 30µA at 5V input (Typ.)
Small output capacitor
Output current limit
Thermal overload shutdown protection
TO-92, SOT-89 and SOT-23 Package
Note:
Mask option output types are
available by order only
Applications
Battery Powered Equipment
Palmtops
Portable Cameras and Video Recorders
Reference Voltage Sources
Post Regulator for Switching Power
Fortune Semiconductor Corp.
http://www.fsc.com.tw
TEL: +886-2-2809-4742
FAX: +886-2-2809-4874
1/13
FS8853-DS-20_EN
Rev. 2.0
May, 2005
FS8853
Pin Configurations
TO-92
SOT-89
Part No. Pin 1 Pin 2 Pin 3
FS8853
GND
-xxxE
1
2
3
Part No. Pin 1 Pin 2 Pin 3
FS8853
GND
-xxxL
IN
OUT
IN
FS8853
xxxxxxxx
1
2
3
IN
OUT
(BOTTOM VIEW)
FS8853
OUT GND
-xxxI
Part No. Pin 1 Pin 2 Pin 3
FS8853
-xxxA
IN
GND OUT
IN
OUT
IN
SOT-23
3
.....
....
3xxx
W
1
2
FS8853
GND
-xxxB
FS8853
GND OUT
-xxxC
Package Marking Information
SOT-23
EX：FS8853-33CC
.....
TO-92 & SOT-89
EX：FS8853-33CL
FS8853
33CLxxxx
xxxx：Date Code
333C
...
W
Top Point：Lot No.
Bottom Point：Year
w : week, A~Z & A ~ Z
EX：FS8853-33PC
.....
EX：FS8853-33PL
FS8853
33PLxxxx
xxxx：Date Code
333C
...
.
W
Top Point：Lot No.
Bottom Point：Year
w : week, A~Z & A ~ Z
A dot after marking : Pb/P Free
Fortune Semiconductor Corp.
2/13
Rev. 2.0
FS8853
Pin Description
Part NO.
FS8853-xxxA
FS8853-xxxB
FS8853-xxxC
FS8853-xxxE
FS8853-xxxL
FS8853-xxxI
Symbol
GND
IN
OUT
Description
Ground pin that provides the reference for all voltages.
Regulator input pin. Supply voltage can range from 2.5V to
9.0V. Bypass with a 1µF capacitor to GND.
Regulator output pin. Sources up to 300mA. Bypass with a
3.3µF capacitor to GND.
Functional Block Diagram
IN
Current Limit
Shutdown
Logic
Thermal
Protection
OUT
R1
1.25V
Bandgap
Reference
R2
GND
Typical Application Circuit
Fortune Semiconductor Corp.
3/13
Rev. 2.0
FS8853
Absolute Maximum Ratings
Input voltage V
IN
to GND ----------------------------------------------------------------------------------------------------10V
Output current limit, I
(LIMIT)
------------------------------------------------------------------------------------------------ 0.6A
Continuous power dissipation, P
D
(∆T= T
J
-T
A
= 100°C)
SOT-23
----------------------------------------------------------------------------------------------------------------------------------------
0.30W
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.
4/13
Rev. 2.0
FS8853
Electrical Characteristics
(T
A
=25°C, unless otherwise noted.)
Symbol
Parameter
Test Conditions
Min
Typ
Max
Unit
V
IN
V
OUT
Input Voltage
Output Voltage
2.5
V
OUT
-
V
IN
=V
OUT
+0.48V, I
OUT
=1mA, V
IN
≦
7V
0.035
V
IN
=V
OUT
+0.48V, I
OUT
=1mA, 7V
＜
V
IN
V
OUT
-
0.042
≦
9V
V
IN
>V
OUT
+0.48V, V
IN
≦
7V
V
IN
>V
OUT
+0.48V, 7V
＜
V
IN
≦
9V
-35
-42
300
9.0
V
OUT
+
0.035
V
OUT
+
V
OUT
0.042
V
OUT
+35
+42
0.6
V
V
V
mV
mV
mA
A
mA
µA
mV
mV
mV
%/V
%/mA
µV
RMS
dB
°C
°C
∆
V
OUT
I
MAX
I
LIMIT
I
SC
I
Q
V
DROP
∆V
LINE
∆V
LOAD
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
=5.0V
I
OUT
=0mA to 300mA, V
IN
=5.0V
I
OUT
=1mA
I
OUT
=100mA
I
OUT
=300mA
V
OUT
+0.48V<V
IN
<9V, I
OUT
=1mA
I
OUT
=0mA to 300mA
F=1Hz to 10KHz, C
OUT
=3.3µF,
I
OUT
=0mA
F=1KH
z
, C
OUT
=3.3µF
300
30
1.1
120
400
0.2
0.01
70
70
155
10
350
50
1.3
145
480
0.3
0.02
e
N
PSRR
T
SD
T
HYS
SOT-23
320
180
180
°C/W
°C/W
°C/W
θ
JA
SOT-89
TO-92
Fortune Semiconductor Corp.
5/13
Rev. 2.0
PCB Design
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