Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

FS8853-25CB Datasheet(PDF) 9 Page - List of Unclassifed Manufacturers

Part # FS8853-25CB
Description  300mA LDO Linear Regulator
Download  13 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  ETC [List of Unclassifed Manufacturers]
Direct Link  
Logo ETC - List of Unclassifed Manufacturers

FS8853-25CB Datasheet(HTML) 9 Page - List of Unclassifed Manufacturers

Back Button FS8853-25CB Datasheet HTML 5Page - List of Unclassifed Manufacturers FS8853-25CB Datasheet HTML 6Page - List of Unclassifed Manufacturers FS8853-25CB Datasheet HTML 7Page - List of Unclassifed Manufacturers FS8853-25CB Datasheet HTML 8Page - List of Unclassifed Manufacturers FS8853-25CB Datasheet HTML 9Page - List of Unclassifed Manufacturers FS8853-25CB Datasheet HTML 10Page - List of Unclassifed Manufacturers FS8853-25CB Datasheet HTML 11Page - List of Unclassifed Manufacturers FS8853-25CB Datasheet HTML 12Page - List of Unclassifed Manufacturers FS8853-25CB Datasheet HTML 13Page - List of Unclassifed Manufacturers  
Zoom Inzoom in Zoom Outzoom out
 9 / 13 page
background image
FS8853
300mA LDO Linear Regulator
Fortune Semiconductor Co.
TEL : +886-2-2809-4742
9/13
TD-0405006
Rev. 1.5
http://www.fsc.com.tw
FAX: +886-2-2809-4874
D
Deettaaiill D
Deessccrriip
pttiioon
n
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 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.
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.
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.
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.
Current Limit
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.
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.
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:
(
) ()
JA
A
J
CA
JC
A
J
MAX
T
T
T
T
P
θ
θ
θ
=
+
=
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.
If the FS8853 uses a SOT-89 package and this


Similar Part No. - FS8853-25CB

ManufacturerPart #DatasheetDescription
logo
Fortune Semiconductor C...
FS8853-25GC FORTUNE-FS8853-25GC Datasheet
889Kb / 15P
   300 mA LDO Linear Regulator
FS8853-25GI FORTUNE-FS8853-25GI Datasheet
889Kb / 15P
   300 mA LDO Linear Regulator
FS8853-25GL FORTUNE-FS8853-25GL Datasheet
889Kb / 15P
   300 mA LDO Linear Regulator
More results

Similar Description - FS8853-25CB

ManufacturerPart #DatasheetDescription
logo
Diodes Incorporated
AP130 DIODES-AP130_10 Datasheet
121Kb / 11P
   300mA LOW DROPOUT (LDO) LINEAR REGULATOR
DS31027 Rev. 7 - 2
logo
Anachip Corp
AP130 ANACHIP-AP130 Datasheet
161Kb / 9P
   300mA Low Dropout (LDO) Linear Regulator
logo
Semtech Corporation
SC563 SEMTECH-SC563 Datasheet
1Mb / 16P
   Dual Output 300mA LDO Linear Regulator
logo
Diodes Incorporated
AP130 DIODES-AP130_11 Datasheet
121Kb / 11P
   300mA LOW DROPOUT (LDO) LINEAR REGULATOR
AP130-15WL-7 DIODES-AP130-15WL-7 Datasheet
121Kb / 11P
   300mA LOW DROPOUT (LDO) LINEAR REGULATOR
AP130-25SAG-7 DIODES-AP130-25SAG-7 Datasheet
121Kb / 11P
   300mA LOW DROPOUT (LDO) LINEAR REGULATOR
AP130-33WL-7 DIODES-AP130-33WL-7 Datasheet
121Kb / 11P
   300mA LOW DROPOUT (LDO) LINEAR REGULATOR
AP130 DIODES-AP130 Datasheet
161Kb / 8P
   300mA LOW DROPOUT (LDO) LINEAR REGULATOR
DS31027 Rev. 7 - 2
logo
Advanced Analogic Techn...
AAT3258 ANALOGICTECH-AAT3258 Datasheet
251Kb / 17P
   300mA LDO Linear Regulator with UP Reset
AAT3242 ANALOGICTECH-AAT3242 Datasheet
512Kb / 16P
   300mA/150mA Dual CMOS LDO Linear Regulator
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com