Os motores de busca de Datasheet de Componentes eletrônicos
  Portuguese  ▼
ALLDATASHEETPT.COM

X  

CS5201-3GDPR3 Folha de dados(PDF) 4 Page - Cherry Semiconductor Corporation

Nome de Peças CS5201-3GDPR3
Descrição Electrónicos  1A, 3.3V Fixed Linear Regulator
Download  6 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrônico  CHERRY [Cherry Semiconductor Corporation]
Página de início  http://www.cherrycorp.com/
Logo CHERRY - Cherry Semiconductor Corporation

CS5201-3GDPR3 Folha de dados(HTML) 4 Page - Cherry Semiconductor Corporation

  CS5201-3GDPR3 Datasheet HTML 1Page - Cherry Semiconductor Corporation CS5201-3GDPR3 Datasheet HTML 2Page - Cherry Semiconductor Corporation CS5201-3GDPR3 Datasheet HTML 3Page - Cherry Semiconductor Corporation CS5201-3GDPR3 Datasheet HTML 4Page - Cherry Semiconductor Corporation CS5201-3GDPR3 Datasheet HTML 5Page - Cherry Semiconductor Corporation CS5201-3GDPR3 Datasheet HTML 6Page - Cherry Semiconductor Corporation  
Zoom Inzoom in Zoom Outzoom out
 4 / 6 page
background image
4
Applications Information
The CS5201-3 linear regulator provides a fixed 3.3V out-
put voltage at currents up to 1A. The regulator is protect-
ed against overcurrent conditions and includes thermal
shutdown.
The CS5201-3 has a composite PNP-NPN output transistor
and requires an output capacitor for stability. A detailed
procedure for selecting this capacitor is included in the
Stability Considerations section.
The output or compensation capacitor helps determine
three main characteristics of a linear regulator: start-up
delay, load transient response and loop stability.
The capacitor value and type are based on cost, availabili-
ty, size and temperature constraints. A tantalum or alu-
minum electrolytic capacitor is best, since a film or ceramic
capacitor with almost zero ESR can cause instability. The
aluminum electrolytic capacitor is the least expensive solu-
tion. However, when the circuit operates at low tempera-
tures, both the value and ESR of the capacitor will vary
considerably. The capacitor manufacturersÕ data sheet pro-
vides this information.
A 22µF tantalum capacitor will work for most applications,
but with high current regulators such as the CS5201-3 the
transient response and stability improve with higher val-
ues of capacitance. The majority of applications for this
regulator involve large changes in load current so the out-
put capacitor must supply the instantaneous load current.
The ESR of the output capacitor causes an immediate drop
in output voltage given by:
ÆV = ÆI
´ ESR
For microprocessor applications it is customary to use an
output capacitor network consisting of several tantalum
and ceramic capacitors in parallel. This reduces the overall
ESR and reduces the instantaneous output voltage drop
under load transient conditions. The output capacitor net-
work should be as close as possible to the load for the best
results.
When large external capacitors are used with a linear regu-
lator it is sometimes necessary to add protection diodes. If
the input voltage of the regulator gets shorted, the output
capacitor will discharge into the output of the regulator.
The discharge current depends on the value of the capaci-
tor, the output voltage and the rate at which VIN drops. In
the CS5201-3 linear regulator, the discharge path is
through a large junction and protection diodes are not
usually needed. If the regulator is used with large values
of output capacitance and the input voltage is instanta-
neously shorted to ground, damage can occur. In this case,
a diode connected as shown in Figure 1 is recommended.
Figure 1. Protection diode scheme for large output capacitors.
Since the CS5201-3 is a three terminal regulator, it is not
possible to provide true remote load sensing. Load regula-
tion is limited by the resistance of the conductors connect-
ing the regulator to the load. For best results, the regulator
should be connected as shown in figure 2.
Output Voltage Sensing
VOUT
VIN
CS5201-3
VIN
GND
C1
VOUT
C2
IN4002
(optional)
Protection Diodes
Stability Considerations
02
3
4
5
6
500
7
-100
0
100
200
Time
mS
10
9
8
1
1000
-200
0
COUT =CIN =22mF Tantalum
Transient Response
Typical Performance Characteristics: continued
1.5
2.5
3.0
3.5
1.5
VIN - VOUT (V)
1.7
1.9
2.1
2.3
3.1
3.3
1.0
4.0
2.5
2.7
2.9
3.5
2.0
Short Circuit Current vs. VIN - VOUT


Nº de peça semelhante - CS5201-3GDPR3

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
ON Semiconductor
CS5201-3GDPR3 ONSEMI-CS5201-3GDPR3 Datasheet
191Kb / 8P
   1.0 A, 3.3 V Fixed Linear Regulator
September, 2006 ??Rev. 8
CS5201-3GDPR3G ONSEMI-CS5201-3GDPR3G Datasheet
191Kb / 8P
   1.0 A, 3.3 V Fixed Linear Regulator
September, 2006 ??Rev. 8
More results

Descrição semelhante - CS5201-3GDPR3

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
Cherry Semiconductor Co...
CS5203-3 CHERRY-CS5203-3 Datasheet
143Kb / 6P
   3A, 3.3V Fixed Linear Regulator
CS5207-3 CHERRY-CS5207-3 Datasheet
150Kb / 5P
   7A, 3.3V Fixed Linear Regulator
CS52015-3 CHERRY-CS52015-3 Datasheet
159Kb / 6P
   1.5A, 3.3V Fixed Linear Regulator
logo
Fairchild Semiconductor
RC1117 FAIRCHILD-RC1117 Datasheet
48Kb / 9P
   1A Adjustable/Fixed Low Dropout Linear Regulator
logo
Advanced Monolithic Sys...
AMS1117 AMS-AMS1117 Datasheet
894Kb / 9P
   1A Adjustable/Fixed Low Dropout Linear Regulator
logo
Leshan Radio Company
LR1117A LRC-LR1117A Datasheet
148Kb / 9P
   1A Adjustable/Fixed Low Dropout Linear Regulator
logo
International Rectifier
IRU1010-33 IRF-IRU1010-33 Datasheet
76Kb / 8P
   1A LOW DROPOUT POSITIVE FIXED 3.3V REGULATOR
logo
E-CMOS Corporation
EC8811 E-CMOS-EC8811 Datasheet
687Kb / 16P
   1A Adjustable & Fixed Voltage LDO Linear Regulator
logo
Fairchild Semiconductor
FAN1117A FAIRCHILD-FAN1117A Datasheet
49Kb / 9P
   1A Adjustable/Fixed Low Dropout Linear Regulator
logo
List of Unclassifed Man...
L1117XG ETC1-L1117XG Datasheet
242Kb / 13P
   1A Fixed and Adjustable Low Dropout Linear Regulator (LDO)
More results


Html Pages

1 2 3 4 5 6


Folha de dados Download

Go To PDF Page


Ligação URL




Privacy Policy
ALLDATASHEETPT.COM
ALLDATASHEET é útil para você?  [ DONATE ] 

Sobre Alldatasheet   |   Publicidade   |   Contato conosco   |   Privacy Policy   |   roca de Link   |   Lista de Fabricantes
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