550mA Linear Regulator FS8856 low-dropout linear regulator that o

The Datasheet Archive - 100 Million Datasheets from 7500 Manufacturers.

550mA Linear Regulator FS8856 low-dropout linear regulator that o

Datasheet Thumbnail

Top Searches for this datasheet

FS8856
550mA Linear Regulator
FS8856 low-dropout linear regulator that operations input voltage range from +2.5V +6.5V delivers 550mA output current. high-accuracy output voltage preset internally trimmed voltage 2.5V 3.3V. Other output voltages mask-optioned from 1.3V 5.0V with 100mV increment, except FS8856-29Cx which 2.85V output voltage. FS8856 consist 1.25V reference compare amplifier, P-channel pass transistor. Other features include short-circuit protection thermal shutdown protection. FS8856 devices available TO-92, SOT-89 SOT-223 packages.
Ordering Information
FS8856-xx
Package TO-92 TO-92 TO-92 TO-92 SOT-223 SOT-223 SOT-223 SOT-223 SOT-89 SOT-89 SOT-89 SOT-89 1.IN 1.GND 1.OUT 1.GND 1.IN 1.GND 1.GND 1.OUT 1.IN 1.GND 1.OUT 1.GND 2.GND 2.IN 2.GND 2.OUT 2.GND 2.IN 2.OUT 2.GND 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 Commercial Standard Commercial Standard, Lead(Pb) Free Phosphorous(P) Free Package Output Voltage 1.3V 1.4V 1.5V 1.6V 1.7V 1.8V 1.9V 2.0V 2.1V 2.2V 2.3V 2.4V 2.5V 2.6V 2.7V 2.8V 2.85V 3.0V 3.1V 3.2V 3.3V 3.4V 3.5V 3.6V 3.7V 3.8V 3.9V 4.0V 4.1V 4.2V 4.3V 4.4V 4.5V 4.6V 4.7V 4.8V 4.9V 5.0V
Features
dropout voltage 750mV 550mA (Typ.) ±35mV output voltage accuracy Preset 2.5V, 3.3V Mask option from 1.3V 5.0V Small output capacitor Output current limit Thermal overload shutdown protection TO-92, SOT-89 SOT-223 Packages
Applications
CD-ROM Drivers DVD-ROM Drivers Portable Consumer Equipment Radio Control Systems Wireless Communication Systems
Note Mask option output types available order only.
Fortune Semiconductor
http://www.fsc.com.tw
+886-2-2809-4742 FAX: +886-2-2809-4874
1/13
TD-0405008
Rev.
FS8856
550mA Linear Regulator
Configurations
Part FS8856 -xxxD
TO-92
Part
SOT-89
FS8856 -xxxK
FS8856 xxxxxxxx
FS8856 -xxxE
(BOTTOM VIEW)
FS8856 -xxxF FS8856 -xxxW
FS8856 -xxxL
FS8856 -xxxI FS8856 -xxxY
SOT-223
Part FS8856 -xxxG
FS8856 -xxxH
FS8856 xxxxxxxx
FS8856 -xxxJ FS8856 -xxxX
Package Marking Information
EXFS8856-33CL
FS8856 33CLxxxx
xxxxDate Code
EXFS8856-33PL
FS8856 33PLxxxx
xxxxDate Code
Fortune Semiconductor
http://www.fsc.com.tw
+886-2-2809-4742 FAX: +886-2-2809-4874
2/13
TD-0405008
Rev.
FS8856
550mA Linear Regulator
Description
Part FS8856-xxCD FS8856-xxCE FS8856-xxCF FS8856-xxCW FS8856-xxCG FS8856-xxCH FS8856-xxCJ FS8856-xxCX FS8856-xxCK FS8856-xxCL FS8856-xxCI FS8856-xxCY Symbol Ground pin. Description
Regulator input pin.
Regulator output pin.
regulator input pin. Supply voltage range from 2.5V 6.5V. Bypass with capacitor GND. output voltage pin. Sources 550mA. Bypass with 3.3µF capacitor GND. provides reference voltages.
Functional Block Diagram
Current Limit
Shutdown Logic
Thermal Protection
1.25V Bandgap Reference
Fortune Semiconductor
http://www.fsc.com.tw
+886-2-2809-4742 FAX: +886-2-2809-4874
3/13
TD-0405008
Rev.
FS8856
550mA Linear Regulator
Typical Application Circuit
FS8856
Absolute Maximum Ratings
Input voltage Output current limit, I(LIMIT) 0.8A Continuous power dissipation, SOT-223 0.65W SOT-89 0.55W 0.55W TO-92 power dissipation values based condition that junction temperature ambient temperature difference 100°C. Junction Temperature, +155°C Storage temperature range, TSTG -55°C +150°C Operating junction temperature range -40°C +125°C Lead temperature (soldering, 10sec) 260°C
Stresses beyond those listed under "absolute maximum ratings" cause permanent damage device. These stress ratings only, function operation device these other conditions beyond those indicated under "recommended operating conditions" implied. Exposure absolute-maximum-rated conditions extended periods affect device reliability.
Fortune Semiconductor
http://www.fsc.com.tw
+886-2-2809-4742 FAX: +886-2-2809-4874
4/13
TD-0405008
Rev.
FS8856
550mA Linear Regulator
Electrical Characteristics
(TA=25, unless otherwise noted.) Symbol VOUT VOUT IMAX ILIMIT Parameter Input Voltage Output Voltage Output Voltage Accuracy Maximum Load Current Current Limit Short-Circuit Current Ground Current VOUT=0V, VIN>VOUT+0.9V ILOAD=0mA 550mA, VIN=VOUT+0.9V IOUT=100mA VDROP Dropout Voltage IOUT=300mA IOUT=500mA IOUT=550mA VLINE VLOAD PSRR THYS Line Regulation Load Regulation Ripple Rejection Thermal Shutdown Temperature Thermal Shutdown Hysteresis SOT-223 Thermal Resistance SOT-89 TO-92 VOUT+0.9V<VIN<6.5V, ILOAD=1mA IOUT=0mA 550mA 0.02 VIN=VOUT+0.9V, IOUT=1mA VIN>VOUT+0.9V, VIN6.5V Test Conditions VOUT0.035 0.03 VOUT VOUT+ 0.035 Unit %/mA °C/W °C/W °C/W
Fortune Semiconductor
http://www.fsc.com.tw
+886-2-2809-4742 FAX: +886-2-2809-4874
5/13
TD-0405008
Rev.
FS8856
550mA Linear Regulator
Typical Operating Characteristics
(CIN=1.0µF, COUT=3.3µF, TA=+25, unless otherwise noted.)
OUTPUT VOLTAGE INPUT VOLTAGE
GROUND CURRENT AMBIENT TEMPERATURE
100mA 550mA
OUTPUT VOLTAGE
GROUND CURRENT (µA)
INPUT VOLTAGE *EXModel FS8856-33Cx
AMBIENT TEMPERATURE
DROPOUT VOLTAGE LOAD CURRENT
1.40
LOAD CURRENT
DROPOUT VOLTAGE
1.30
0.15 0.25 0.35 0.45 0.55
1.20
1.10
1.00
0.90
0.80
LOAD CURRENT
LOAD CURRENT (mA)
POWER SUPPLY REJECTION RATIO FREQUENCY
-100
CURRENT LOAD CURRENT
GROUND CURRENT (µA)
PSRR (dB)
0.01 1000
FREQUENCY (KHz)
LOAD CURRENT (mA)
Fortune Semiconductor
http://www.fsc.com.tw
+886-2-2809-4742 FAX: +886-2-2809-4874
6/13
TD-0405008
Rev.
FS8856
550mA Linear Regulator
OUTPUT VOLTAGE AMBIENT TEMPERATURE GROUND CURRENT (uA)
GROUND CURRENT INPUT VOLTAGE
3.36
OUTPUT VOLTAGE
3.34
3.32
3.28
3.26
AMBIENT TEMPERATURE
INPUT VOLTAGE
LINE TRANSIENT (IOUT=0mA)
LINE TRANSIENT (IOUT=10mA)
5.0V 4.0V
5.0V 4.0V
VOUT
COUT 3.3µF 50mV/div
VOUT
COUT 3.3µF 50mV/div LINE TRANSIENT (IOUT=550mA)
LINE TRANSIENT (IOUT=250mA) 5.0V 5.0V 4.0V 4.0V
VOUT
COUT 3.3µF 50mV/div
VOUT
COUT 3.3µF 50mV/div LOAD TRANSIENT
Fortune Semiconductor
http://www.fsc.com.tw
+886-2-2809-4742 FAX: +886-2-2809-4874
7/13
TD-0405008
Rev.
FS8856
550mA Linear Regulator
100mA IOUT IOUT
250mA 100mA
VOUT
COUT 3.3µF 50mV/div LOAD TRANSIENT
VOUT
COUT 3.3µF 50mV/div LOAD TRANSIENT
550mA IOUT 250mA IOUT
500mA
VOUT
COUT 3.3µF 50mV/div
VOUT
COUT 3.3µF 100mV/div
LOAD TRANSIENT Fortune Semiconductor
http://www.fsc.com.tw
+886-2-2809-4742 FAX: +886-2-2809-4874
8/13
TD-0405008
Rev.
FS8856
550mA Linear Regulator
Detail Description
FS8856 low-dropout linear regulator. device provides preset 2.5V 3.3V output voltages output current 550mA. Other mask options special output voltages from 1.3V 5.0V with 100mV increment also available. illustrated function block diagram, consists 1.25V reference, error amplifier, P-channel pass transistor internal feedback voltage divider. 1.25V bandgap reference connected error amplifier, which compares this reference with feedback voltage amplifies voltage difference. feedback voltage lower than reference voltage, pass-transistor gate pulled lower, which allows more current pass output increases output voltage. feedback voltage high, pass-transistor gate pulled decrease output voltage. output voltage feedback through internal resistive divider connected pin. Additional blocks include output current limiter, thermal sensor, shutdown logic. Internal P-channel Pass Transistor FS8856 features P-channel MOSFET pass transistor. Unlike similar designs using pass transistors, P-channel MOSFETs require base drive, which reduces ground current. PNP-based regulators also waste considerable current dropout when pass transistor saturates, high base-drive currents under large loads. FS8856 does suffer from these problems consumes only 65µA (Typ.) ground current under heavy loads well dropout conditions. Output Voltage Selection FS8856 output voltage preset internally trimmed voltage 2.5V, 3.3V mask-optioned from 1.3V 5.0V with 100mV increment. first digits part number suffix identify output voltage (see Ordering Information). example, FS8856-33CL preset 3.3V output voltage.
Current Limit FS8856 also includes fold back current limiter. monitors controls pass transistor's gate voltage, estimates output current, limits output current within 0.8A. Thermal Overload Protection Thermal overload protection limits total power dissipation FS8856. When junction temperature exceeds +155°C, thermal sensor turns pass transistor, allowing cool down. thermal sensor turns pass transistor again after junction temperature cools down 20°C, resulting pulsed output during continuous thermal overload conditions. Thermal overload protection designed protect FS8856 event fault conditions. continuous operation, maximum operating junction temperature rating +125°C should exceeded. Operating Region Power Dissipation Maximum power dissipation FS8856 depends thermal resistance case circuit board, temperature difference between junction ambient air, rate airflow. power dissipation across devices IOUT (VIN-VOUT). resulting maximum power dissipation
PMAX
Where (TJ-TA) temperature difference between FS8856 junction surrounding air, thermal resistance package chosen, thermal resistance through printed circuit board, copper traces other materials surrounding air. better heat-sinking, copper area should equally shared between OUT, pins. FS8856 uses SOT-89 package this package mounted double sided printed
9/13 TD-0405008 Rev.
Fortune Semiconductor
http://www.fsc.com.tw
+886-2-2809-4742 FAX: +886-2-2809-4874
FS8856
550mA Linear Regulator
circuit board with square inches copper allocated "heat spreading", resulting 180°C/W. Based maximum operating junction temperature 125°C with ambient 25°C, maximum power dissipation will spreading". Input-Output Voltage regulator's minimum input-output voltage differential, dropout voltage, determines lowest usable supply voltage. battery-powered systems, this will determine useful end-of-life battery voltage. FS8856 uses P-channel MOSFET pass transistor, dropout voltage function drain-to-source on-resistance (RDS(ON)) multiplied load current. VDROPOUT VIN-VOUT RDS(ON) IOUT
PMAX
(125 0.555W
Thermal characteristics were measured using double sided board with square inches copper area connected "heat
Fortune Semiconductor
http://www.fsc.com.tw
+886-2-2809-4742 FAX: +886-2-2809-4874
10/13
TD-0405008
Rev.
FS8856
550mA Linear Regulator
Package Outline SOT-223
Fortune Semiconductor
http://www.fsc.com.tw
+886-2-2809-4742 FAX: +886-2-2809-4874
11/13
TD-0405008
Rev.
FS8856
550mA Linear Regulator
SOT-89
Fortune Semiconductor
http://www.fsc.com.tw
+886-2-2809-4742 FAX: +886-2-2809-4874
12/13
TD-0405008
Rev.
FS8856
550mA Linear Regulator
TO-92
Fortune Semiconductor
http://www.fsc.com.tw
+886-2-2809-4742 FAX: +886-2-2809-4874
13/13
TD-0405008
Rev.

550mA Linear Regulator FS8856 low-dropout linear regulator that o

Top Searches for this datasheet

Other recent searches