DataSheet26.com

S5U2179 PDF даташит

Спецификация S5U2179 изготовлена ​​​​«SeCoS» и имеет функцию, называемую «CMOS Low Dropout Voltage Regulator».

Детали детали

Номер произв S5U2179
Описание CMOS Low Dropout Voltage Regulator
Производители SeCoS
логотип SeCoS логотип 

6 Pages
scroll

No Preview Available !

S5U2179 Даташит, Описание, Даташиты
www.DataSheet4U.com
Elektronische Bauelemente
RoHS Compliant Product
S5U2179
CMOS Low Dropout
Voltage Regulator
Description
The S5U2179 series positive,linear regulators feature low quiescent
current (45µA typ.) with low dropout voltage, making them ideal
for battery applications. Output voltage are set at the factory and
trimmed to 1.5% accuracy.These rugged devices have both
Thermal Shutdown and Current Fold-back to prevent device failure
under the "Worst" of operating conditions. In applications requiring a
low noise, regulated supply, place a 1000pF capacitor between
Bypass and Ground.The S5U2179 is stable with an output capacitance
of 4.7µF or greater.
Features
* Low Temperature Coefficient
* Over-Temperature Shutdown
* Highly Accurate ± 1.5%
* Very Low Dropout Voltage
* Noise Reduction Bypass Capacitor
* Guaranteed 1.55 A output
* Current Limiting
* Power-Saving Shutdown Mode
REF.
A
b
L4
c
L1
E
Millimeter
Min. Max.
REF.
4.40 4.80 c2
0.66 0.91 L2
0.00 0.30 B D
0.36 0.5
e
2.29 2.79 L
9.80 10.4
Millimeter
Min. Max.
1.25 1.45
1.27 REF.
8.6 9.0
1.70 REF.
14.6 15.8
0˚ 8˚
Applications
* PC Peripherals
* Wireless Devices
* Portable Electronics
* Battery Powered Widgets
* Instrumentation
Functional Block Diagram
Typical Application Circuit
S5U2179
http://www.SeCoSGmbH.com/
01-Jun-2002 Rev. A
Any changing of specification will not be informed individual
Page 1 of 6









No Preview Available !

S5U2179 Даташит, Описание, Даташиты
www.DataSheet4U.com
Elektronische Bauelemente
S5U2179
CMOS Low Dropout
Voltage Regulator
Absolute Maximum Ratings
Parameter
Input Max Voltage
Output Current
Output Voltage
Operating Ambient Temperature
Symbol
VIN
IOUT
VOUT
Topr
Ratings
8
PD/( VIN- VO)
1.5~5.0
-40 ~ +85
Junction Temperature
Tj -40 ~ +125
Maximum Junction Temperature
Thermal Resistance
Internal Power Dissipation( T=100
)*
Tj Max
jc
PD
150
5
3.0
EDS Classification
B
*Assuming a heat sink capable of twice times (θjc)
Electrical Characteristics VIN=VOUT(T)+2V, VEN=VIN, TA=25 unless otherwise
Parameter
Output Voltage
Output Current
Symbol
VOUT(E)
(Note1)
IO
Condition
IO=1mA
VOUT>1.2V
Min
-1.5%
1.55
TYP
VOUT(T)
(Note2)
-
Current Limit
ILIM
VOUT>1.2V
1.55 2.0
Load Regulation
Dropout Voltage
REGLOAD
VDROPOUT
IO=1mA to 1.5A
IO=1.55A
1.5V<VOUT(T)
VO=VOUT(E)-2% 2.0V<VOUT(T)
2.0V
2.8V
-1
-
-
0.2
-
-
2.8V<VOUT(T) - -
Quiescent Current
IQ
IO=0mA
- 45
Ground Pin Current
Line Regulation
IGND
REGLINE
IO=1mA~1.5A
IO=(1Tm)+A1 to
VIN=VVOOU((UTTT(T)T()+T+)1+1)+2tt1oo to
VOUT(T)<2.0V
2.0V VOUT(T)
- 45
--
- 0.02
Input Voltage
Over Temperature Shutdown
VIN
OTS
Note3
-
-
150
Over Temperature Hysterisis
Output Voltage
Temperature Coefficient
Power Supply Rejection
Power Supply Rejection
Output Voltage Noise
Output Voltage Noise
EN Input Threshold
EN Input Bias Current
OTH
TC
PSRR
PSRR
eN
eN
VEH
VEL
IEH
IEL
Io=100mA
Co=4.7 F ceramic
f=1kHz
f=10kHz
f=100kHz
Io=100mA
Co=4.7 F ceramic
CBYP=0.01 F
f=1kHz
F=10kHz
f=100kHz
f=10Hz~100kHz
Io=10mA,
CBYP=0 F
f=10Hz~100kHz
Io=10mA,
CBYP=0.01 F
Co=4.7 F
Co=4.7 F
VIN=2.7V to 7V
VIN=2.7V to 7V
VEN=VIN, VIN=2.7V to 7V
VEN= 0V, VIN=2.7V to 7V
- 30
- 30
- 50
- 20
- 15
- 75
- 55
- 30
- 30
- 30
2.0 -
0-
--
--
Shutdown Supply Current
ISD
VIN=5.0V, VO=0, VEN<VEL
VIN=2.5V, VO=0, VEN<VEL
- 30
- 0.5
Unit
V
A
V
/W
W
Max
1.5%
-
-
1
1000
800
600
70
-
0.15
0.1
7
-
-
-
-
-
-
-
-
-
Unit
V
A
A
%
mV
A
A
%
V
ppm/
dB
dB
- Vrms
- Vrms
VIN V
0.4 V
0.1 A
0.5 A
-A
2A
http://www.SeCoSGmbH.com/
01-Jun-2002 Rev. A
Any changing of specification will not be informed individual
Page 2 of 6









No Preview Available !

S5U2179 Даташит, Описание, Даташиты
www.DataSheet4U.com
Elektronische Bauelemente
S5U2179
CMOS Low Dropout
Voltage Regulator
Note 1: VOUT (E) =Effective Output Voltage (i.e. the output voltage when “VOUT (T) + 2.0V” is provided at the VIN pin while maintaining a
certain IOUT value).
2: VOUT (T) =Specified Output Voltage
3: VIN (MIN) =VOUT+VDROPOUT
Ordering Information(contd.)
Part Number
S5U2179-15
S5U2179-25
S5U2179-47
Marking
9G152
XXXX
9G252
XXXX
9G472
XXXX
Output Voltage
1.5V
2.5V
4.7V
Part Number
S5U2179-18
S5U2179-33
S5U2179-50
Marking
9G182
XXXX
9G332
XXXX
9G502
XXXX
Output Voltage
1.8V
3.3V
5.0V
Detailed Description
The S5U 2179 of COMS regulators contain a PMOS pass transistor,voltage reference, error amplifier,over-current protection and thermal
shutdown.The P-channel pass transistor receives data from the error amplifier, over-current shutdown, and thermal protection circuits.
During normal operation, the error amplifier compares the output voltage to a precision reference. Over-current and Thermal shutdown circuits
become active when the junction temperature exceeds140oC, or the current exceeds 2.2A.During thermal shutdown, the output voltage
remains low. Normal operation is restored when the junction temperature drops below 120oC.
External Capacitors
The S5U 2179 is stable with an output capacitance to ground of 4.7uF or greater. Ceramic capacitors have the lowest ESR, and will
offer the best AC performance. Conversely, Aluminum Electrolytic capacitors exhibit the highest ESR, resulting in the poorest AC
response. Unfortunately, large value ceramic capacitors are comparatively expensive. One option is to parallel a 0.1uF ceramic
capacitor with a 10uF Aluminum Electrolytic. The benefit is low ESR, high capacitance, and low overall cost. A second capacitor is
recommended between the input and ground to stabilize VIN. The input capacitor should be at least 0.1uF to have a beneficial
effect. A third capacitor can be connected between the BY-PASS pin and GND. This capacitor can be a low cost Polyester
Film variety between the value of 0.001~0.01uF. A large capacitor improves the AC ripple rejection, but also makes the output
come up slowly. This "Soft" turn-on is desirable in some applications to limit turn-on surges.All capacitors should be placed
in closed proximity to the pins. A "Quiet" ground termination is desirable. This can be achieved with a "Star" connection.
Enable
When EN pin is pulled low, the PMOS pass transistor shuts off, and all internal circuits are powered down. In this state, the quiescent
current is less than 1uA. This pin behaves much like an electronic switch.
ht tp://www.SeCoSGmbH.com/
01-Jun-2002 Rev. A
Any changing of specification will not be informed individual
Page 3 of 6










Скачать PDF:

[ S5U2179.PDF Даташит ]

Номер в каталогеОписаниеПроизводители
S5U2178CMOS Low Dropout Voltage RegulatorSeCoS
SeCoS
S5U2179CMOS Low Dropout Voltage RegulatorSeCoS
SeCoS

Номер в каталоге Описание Производители
TL431

100 мА, регулируемый прецизионный шунтирующий регулятор

Unisonic Technologies
Unisonic Technologies
IRF840

8 А, 500 В, N-канальный МОП-транзистор

Vishay
Vishay
LM317

Линейный стабилизатор напряжения, 1,5 А

STMicroelectronics
STMicroelectronics

DataSheet26.com    |    2020    |

  Контакты    |    Поиск