FS8853-14PF [ETC]
300mA LDO Linear Regulator; 300毫安LDO线性稳压器
| 型号： | FS8853-14PF |
| 厂家： | 
ETC |
| 描述： | 300mA LDO Linear Regulator |
| 文件： | 总13页 (文件大小：652K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
FS8853
300mA LDO Linear Regulator
General Description
Ordering Information
FS8853-xx x x
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.
Package
Pin Out
2.GND 3.OUT
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 4.5V with 100mV increment, except
FS8853-29Cx which has 2.85V output voltage.
A : SOT-23
B : SOT-23
C : SOT-23
V : SOT-23
D : TO-92
E : TO-92
F : TO-92
1.IN
1.GND 2.IN
3.OUT
1.GND 2.OUT 3.IN
1.OUT 2.GND 3.IN
1.IN
2.GND 3.OUT
1.GND 2.IN
3.OUT
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.
1.OUT 2.GND 3.IN
1.GND 2.OUT 3.IN
W : TO-92
K : SOT-89
L : SOT-89
I : SOT-89
Y : SOT-89
1.IN
2.GND 3.OUT
1.GND 2.IN
3.OUT
1.OUT 2.GND 3.IN
1.GND 2.OUT 3.IN
Temperature Range
C : Commercial Standard
Features
P : Commercial Standard, Lead(Pb) Free and
Phosphorous(P) Free Package
ꢀ
Low dropout voltage 400mV at 300mA (Typ.)
ꢀ
Up to ±35mV output voltage accuracy (VIN≦
Output Voltage
7V)
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
Preset at 2.5V, 3.3V
Mask options from 1.3V to 4.5V
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 Co.
http://www.fsc.com.tw
TEL: +886-2-2809-4742
FAX: +886-2-2809-4874
1/13
TD-0405006
Rev. 1.5
FS8853
300mA LDO Linear Regulator
Pin Configurations
SOT-89
TO-92
Part No. Pin 1 Pin 2 Pin 3
Part No. Pin 1 Pin 2 Pin 3
FS8853
FS8853
FS8853
-xxxK
IN GND OUT
-xxxD
IN GND OUT
GND IN OUT
OUT GND IN
1
2
3
xxxxxxxx
FS8853
1
2
3
GND IN
OUT
FS8853
-xxxL
-xxxE
(BOTTOM VIEW)
FS8853
-xxxF
FS8853
-xxxW
OUT GND IN
FS8853
-xxxI
GND OUT
IN
FS8853
-xxxY
GND OUT
IN
SOT-23
Part No. Pin 1 Pin 2 Pin 3
3
FS8853
IN GND OUT
-xxxA
. . . . .
3xxx W
. . . .
FS8853
1
2
GND IN
OUT
IN
-xxxB
FS8853
-xxxC
GND OUT
FS8853
-xxxV
OUT GND IN
Package Marking Information
SOT-23
TO-92 & SOT-89
EX：FS8853-33CC
EX：FS8853-33CL
. . . . .
FS8853
33CLxxxx
3 33 C W
. . . .
Top Point：Lot No.
Bottom Point：Year
w : week, A~Z & A ~ Z
xxxx：Date Code
EX：FS8853-33PC
EX：FS8853-33PL
. . . . .
FS8853
33PLxxxx
3 33 C W
. . . .
xxxx：Date Code
Top Point：Lot No.
Bottom Point：Year
w : week, A~Z & A ~ Z
4th Digit with Underline : Pb/P Free
Fortune Semiconductor Co.
http://www.fsc.com.tw
TEL: +886-2-2809-4742
FAX: +886-2-2809-4874
2/13
TD-0405006
Rev. 1.5
FS8853
300mA LDO Linear Regulator
Pin Description
Part NO.
Symbol
GND
Description
FS8853-xxCA
FS8853-xxCB
FS8853-xxCC
FS8853-xxCV
FS8853-xxCD
FS8853-xxCE
FS8853-xxCF
FS8853-xxCW
FS8853-xxCK
FS8853-xxCL
FS8853-xxCI
FS8853-xxCY
Ground pin.
IN
Regulator input pin.
Regulator output pin.
OUT
IN is the regulator input pin. Supply voltage can range from 2.5V to 9.0V. Bypass with a 1µF capacitor to
GND.
OUT is the output voltage pin. Sources up to 300mA. Bypass with a 3.3µF capacitor to GND.
GND provides the reference for all voltages.
Functional Block Diagram
IN
Current Limit
Thermal
Protection
Shutdown
Logic
OUT
GND
R1
R2
1.25V
Bandgap
Reference
Fortune Semiconductor Co.
http://www.fsc.com.tw
TEL: +886-2-2809-4742
FAX: +886-2-2809-4874
3/13
TD-0405006
Rev. 1.5
FS8853
300mA LDO Linear Regulator
Typical Application Circuit
Absolute Maximum Ratings
Input voltage VIN to GND ----------------------------------------------------------------------------------------------------10V
Output current limit, I(LIMIT) ------------------------------------------------------------------------------------------------ 0.6A
Continuous power dissipation, PD (∆T= TJ -TA = 100°C)
SOT-23 ---------------------------------------------------------------------------------------------------------------------------------------- 0.31W
SOT-89
TO-92
---------------------------------------------------------------------------------------------------------------------------------------- 0.55W
---------------------------------------------------------------------------------------------------------------------------------------- 0.55W
* The power dissipation values are based on the condition that junction temperature TJ and ambient
temperature TA difference is 100°C.
Junction Temperature, TJ ------------------------------------------------------------------------------------------------ +155°C
Storage temperature range, TSTG ---------------------------------------------------------------------- -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 Co.
http://www.fsc.com.tw
TEL: +886-2-2809-4742
FAX: +886-2-2809-4874
4/13
TD-0405006
Rev. 1.5
FS8853
300mA LDO Linear Regulator
Electrical Characteristics
(TA=25℃, unless otherwise noted.)
Symbol
Parameter
Input Voltage
Test Conditions
Min
Typ
Max
Unit
V
VIN
2.5
9.0
VOUT-
VOUT+
VIN=VOUT+0.48V, IOUT=1mA, VIN≦7V
VOUT
VOUT
V
0.035
0.035
VOUT
Output Voltage
VIN=VOUT+0.48V, IOUT=1mA, 7V＜VIN
≦9V
VOUT-
0.042
VOUT+
0.042
V
VIN>VOUT+0.48V, VIN≦7V
VIN>VOUT+0.48V, 7V＜VIN≦9V
-35
-42
300
+35
+42
mV
mV
mA
A
ꢀ VOUT Output Voltage Accuracy
IMAX
ILIMIT
ISC
Maximum Load Current
Current Limit
Short-Circuit Current
0.6
160
VOUT=0V, VIN>VOUT+0.48V
140
65
mA
ILOAD=0mA to 300mA,
IQ
Ground Pin Current
120
µA
VIN=VOUT+0.48V
IOUT=1mA
IOUT=100mA
IOUT=300mA
1.1
120
400
0.2
1.3
145
480
0.3
mV
mV
mV
%/V
VDROP
Dropout Voltage
Line Regulation
ꢀVLINE
VOUT+0.48V<VIN<9V, ILOAD=1mA
ꢀVLOAD Load Regulation
IOUT=0mA to 300mA
0.01
70
75
0.02 %/mA
Output Noise
F=1Hz to 10KHz, COUT=3.3µF
F=10KHz, COUT=3.3µF
µVRMS
dB
eN
PSRR
Ripple Rejection
Thermal Shutdown
TSD
155
20
°C
°C
Temperature
Thermal Shutdown
Hysteresis
THYS
SOT-23
SOT-89
TO-92
320
180
180
°C/W
°C/W
°C/W
Thermal Resistance
θJA
Fortune Semiconductor Co.
http://www.fsc.com.tw
TEL: +886-2-2809-4742
FAX: +886-2-2809-4874
5/13
TD-0405006
Rev. 1.5
FS8853
300mA LDO Linear Regulator
Typical Operating Characteristics
(CIN=1µF , COUT=3.3µF, TA=+25℃, unless otherwise noted.)
OUTPUT VOLTAGE vs. INPUT VOLTAGE
GROUND PIN CURRENT vs. AMBIENT
TEMPERATURE
1mA
80
70
60
50
40
30
20
10
0
3.5
3
100mA
200mA
300mA
2.5
2
1.5
1
0.5
0
0
1
2
3
4
5
6
7
8
9
-40 -30 -20 -10
0
10
20
30
40
50
60
70
80
INPUT VOLTAGE (V)
*EX：Model FS8853-33Cx
AMBIENT TEMPERATURE (℃)
DROPOUT VOLTAGE vs. LOAD CURRENT
Ron vs. LOAD CURRENT
600
1.50
1.40
1.30
1.20
1.10
1.00
0.90
0.80
500
400
300
200
100
0
50
100
150
200
250
300
350
400
50
150
200
250
300
350
400
100 LOAD CURRENT (mA)
LOAD CURRENT (mA)
POWER SUPPLY REJECTION RATIO v.s
FREQUENCY
GND PIN CURRENT vs. LOAD CURRENT
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
70
60
50
40
30
20
10
0
0.01
0.1
1
10
100
1000
FREQUENCY (KHz)
0
1
50
100
150
200
250
300
350
400
LOAD CURRENT (mA)
Fortune Semiconductor Co.
http://www.fsc.com.tw
TEL: +886-2-2809-4742
FAX: +886-2-2809-4874
6/13
TD-0405006
Rev. 1.5
FS8853
300mA LDO Linear Regulator
OUTPUT VOLTAGE vs. AMBIENT
TEMPERATURE
GROUND PIN CURRENT vs. INPUT VOLTAGE
3.36
3.34
3.32
3.3
140
120
100
80
60
40
3.28
3.26
20
0
0
1
2
3
4
5
6
7
8
9
10
-40 -30 -20 -10
0
10
20
30
40
50
60
70
80
INPUT VOLTAGE (V)
AMBIENT TEMPERATURE (℃)
OUTPUT NOISE DC to 1MHz (37uVRMS)
OUTPUT NOISE to 1MHz (67uVRMS)
Iload
Iload
LINE TRANSIENT (IOUT=10mA)
LINE TRANSIENT (IOUT=0mA)
5.0V
5.0V
4.0V
VIN
4.0V
VIN
VOUT
CIN
CIN
VOUT
1µF
1µF
COUT
3.3µF
50mV/div
COUT
3.3µF
50mV/div
Fortune Semiconductor Co.
http://www.fsc.com.tw
TEL: +886-2-2809-4742
FAX: +886-2-2809-4874
7/13
TD-0405006
Rev. 1.5
FS8853
300mA LDO Linear Regulator
LINE TRANSIENT (IOUT=100mA)
LINE TRANSIENT (IOUT=200mA)
5.0V
4.0V
5.0V
4.0V
VIN
VIN
CIN
CIN
VOUT
VOUT
1µF
1µF
COUT
3.3µF
COUT
3.3µF
50mV/div
50mV/div
LOAD TRANSIENT
LOAD TRANSIENT
100mA
0mA
200mA
100mA
IOUT
IOUT
VOUT
VOUT
CIN
1µF
COUT
3.3µF
100mV/div
CIN
1µF
COUT
3.3µF
50mV/div
LOAD TRANSIENT
LOAD TRANSIENT
300mA
200mA
300mA
0mA
IOUT
IOUT
VOUT
VOUT
CIN
CIN
1µF
1µF
COUT
3.3µF
50mV/div
COUT
3.3µF
100mV/div
Fortune Semiconductor Co.
http://www.fsc.com.tw
TEL: +886-2-2809-4742
FAX: +886-2-2809-4874
8/13
TD-0405006
Rev. 1.5
FS8853
300mA LDO Linear Regulator
Detail Description
Current Limit
The FS8853 is a low-dropout linear regulator. The
device provides preset 2.5V and 3.3V output
voltages for output current up to 300mA. Other
mask options for special output voltages from 1.3V
to 4.5V with 100mV increment are also available.
As illustrated in function block diagram, it consists
of a 1.25V reference, error amplifier, P-channel
pass transistor and an internal feedback voltage
divider.
The FS8853 also include a fold back current limiter.
It monitors and controls the pass transistor’s gate
voltage, estimates the output current, and limits the
output current within 0.6A.
Thermal Overload Protection
Thermal overload protection limits total power
dissipation in the FS8853. When the junction
temperature exceeds TJ = +155°C, a thermal
sensor turns off the pass transistor, allowing the IC
to cool down. The thermal sensor turns the pass
transistor on again after the junction temperature
cools down by 20°C, resulting in a pulsed output
during continuous thermal overload conditions.
The 1.25V bandgap reference is connected to the
error amplifier, which compares this reference with
the feedback voltage and amplifies the voltage
difference. If the feedback voltage is lower than the
reference voltage, the pass-transistor gate is
pulled lower, which allows more current to pass to
the output pin and increases the output voltage. If
the feedback voltage is too high, the
pass-transistor gate is pulled up to decrease the
output voltage.
Thermal overload protection is designed to protect
the FS8853 in the event of fault conditions. For
continuous operation, the maximum operating
junction temperature rating of TJ = +125°C should
not be exceeded.
The output voltage is feedback through an internal
resistive divider connected to OUT pin. Additional
blocks include an output current limiter, thermal
sensor, and shutdown logic.
Operating Region and Power Dissipation
Maximum power dissipation of the FS8853
depends on the thermal resistance of the case and
circuit board, the temperature difference between
the die junction and ambient air, and the rate of
airflow. The power dissipation across the devices
is P = IOUT x (VIN-VOUT). The resulting maximum
power dissipation is:
Internal P-channel Pass Transistor
The FS8853 features a P-channel MOSFET pass
transistor. Unlike similar designs using PNP pass
transistors, P-channel MOSFETs require no base
drive, which reduces ground pin current.
PNP-based regulators also waste considerable
current in dropout when the pass transistor
saturates, and use high base-drive currents under
large loads. The FS8853 does not suffer from
these problems and consumes only 65µA (Typ.) of
ground pin current under heavy loads as well as in
dropout conditions.
TJ −TA
)
TJ −TA
( )
=
PMAX
=
θJC +θCA
θJA
Where (TJ-TA) is the temperature difference
between the FS8853 die junction and the
surrounding air, θJC is the thermal resistance of the
package chosen, and θCA is the thermal resistance
through the printed circuit board, copper traces
and other materials to the surrounding air. For
better heat-sinking, the copper area should be
equally shared between the IN, OUT, and GND
pins.
Output Voltage Selection
The FS8853 output voltage is preset at an
internally trimmed voltage 2.5V, 3.3V or can be
mask-optioned from 1.3V to 4.5V with 100mV
increment. The first two digits of part number suffix
identify the output voltage (see Ordering
Information). For example, the FS8853-33CL has
a preset 3.3V output voltage.
If the FS8853 uses a SOT-89 package and this
Fortune Semiconductor Co.
http://www.fsc.com.tw
TEL: +886-2-2809-4742
FAX: +886-2-2809-4874
9/13
TD-0405006
Rev. 1.5
FS8853
300mA LDO Linear Regulator
package is mounted on a double sided printed
circuit board with two square inches of copper
allocated for “heat spreading”, the resulting θJA is
180 °C/W.
spreading”.
Input-Output Voltage
regulator’s minimum input-output voltage
A
Based on
a
maximum operating junction
differential, or dropout voltage, determines the
lowest usable supply voltage. In battery-powered
systems, this will determine the useful end-of-life
battery voltage. The FS8853 uses a P-channel
MOSFET pass transistor, its dropout voltage is a
function of drain-to-source on-resistance (RDS(ON))
multiplied by the load current.
temperature 125 °C with an ambient of 25°C, the
maximum power dissipation will be:
(
TJ −TA
)
(
125 − 25
)
PMAX
=
=
= 0.555W
θJC +θCA
180
VDROPOUT = VIN-VOUT = RDS(ON) x IOUT
Thermal characteristics were measured using a
double sided board with 1” x 2” square inches of
copper area connected to the GND pin for “heat
Fortune Semiconductor Co.
http://www.fsc.com.tw
TEL: +886-2-2809-4742
FAX: +886-2-2809-4874
10/13
TD-0405006
Rev. 1.5
FS8853
300mA LDO Linear Regulator
Package Outline
SOT-23
Fortune Semiconductor Co.
http://www.fsc.com.tw
TEL: +886-2-2809-4742
FAX: +886-2-2809-4874
11/13
TD-0405006
Rev. 1.5
FS8853
300mA LDO Linear Regulator
SOT-89
Fortune Semiconductor Co.
http://www.fsc.com.tw
TEL: +886-2-2809-4742
FAX: +886-2-2809-4874
12/13
TD-0405006
Rev. 1.5
FS8853
300mA LDO Linear Regulator
TO-92
Fortune Semiconductor Co.
http://www.fsc.com.tw
TEL: +886-2-2809-4742
FAX: +886-2-2809-4874
13/13
TD-0405006
Rev. 1.5
相关型号：
©2020 ICPDF网 联系我们和版权申明