|
|
PDF AP3503E Data sheet ( Hoja de datos )
| Número de pieza | AP3503E | |
| Descripción | 3A Synchronous DC-DC Buck Converter | |
| Fabricantes | BCD | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de AP3503E (archivo pdf) en la parte inferior de esta página. Total 11 Páginas | ||
|
No Preview Available !
Preliminary Datasheet
340kHz, 3A Synchronous DC-DC Buck Converter
AP3503E
General Description
The AP3503E is a 340kHz fixed frequency, current
mode, PWM synchronous buck (step-down) DC-DC
converter, capable of driving a 3A load with high
efficiency, excellent line and load regulation. The
AP3503E exhibits high efficiency at light load. The
device integrates N-channel power MOSFET
switches with low on-resistance. Current mode
control provides fast transient response and
cycle-by-cycle current limit.
The AP3503E employs complete protection to ensure
system security. Including output Over Voltage
Protection, input Under Voltage Lock Out,
programmable Soft Start, Over Temperature
Protection and hiccup mode Short Circuit Protection.
This IC is available in PSOP-8 package.
Features
• Input Voltage Range: 4.5V to 18V
• Fixed 340kHz Frequency
• High Efficiency at Light Load
• High Efficiency: up to 95%
• Output Current: 3A
• Current Mode Control
• Built-in Over Current Protection
• Built-in Thermal Shutdown Function
• Built-in UVLO Function
• Built-in Over Voltage Protection
• Programmable Soft-start
• Hiccup Mode SCP
Applications
• LCD TV
• Set Top Box
• Portable DVD
• Digital Photo Frame
May. 2012 Rev. 1. 6
PSOP-8
Figure 1. Package Type of AP3503E
BCD Semiconductor Manufacturing Limited
1
1 page  
Preliminary Datasheet
340kHz, 3A Synchronous DC-DC Buck Converter
AP3503E
Electrical Characteristics
TA=25ºC, VIN=VEN=12V, VOUT=3.3V, unless otherwise specified.
Parameter
Symbol
Conditions
SUPPLY VOLTAGE (IN PIN)
Input Voltage
Quiescent Current
Shutdown Supply Current
UNDER VOLTAGE LOCKOUT
Input UVLO Threshold
Input UVLO Hysteresis
ENABLE (EN PIN)
EN Shutdown Threshold Voltage
VIN
IQ
ISHDN
VFB=1V, VEN=3V
VEN=0V
VUVLO
VHYS
VIN Rising
EN1Shutdown1Threshold1Voltage1Hystere-
sis (Note 3)
EN Lockout Threshold Voltage
EN Lockout Hysteresis
VOLTAGE REFERENCE (FB PIN)
Feedback Voltage
Feedback Over Voltage Threshold
Feedback Bias Current
MOSFET
High-side Switch On-resistance(Note 2)
Low-side Switch On-resistance(Note 2)
CURRENT LIMIT
High-side Switch Leakage Current
High-side Switch Current Limit
Low-side Switch Current Limit
SWITCHING REGULATOR
Oscillator Frequency
Short Circuit Oscillator Frequency
Max. Duty Cycle
Min. Duty Cycle
ERROR AMPLIFIER
Error Amplifier Voltage Gain (Note 3)
Error Amplifier Transconductance
COMP to Current Sense Transconductance
THERMAL SHUTDOWN
Thermal Shutdown (Note 3)
Thermal Shutdown Hysteresis (Note 3)
SOFT START (SS PIN)
Soft-start Time (Note 3)
Soft-start Current
VFB
VFBOV
IFB
RDSONH
RDSONL
ILEAKH
ILIMH
ILIML
fOSC1
fOSC2
DMAX
DMIN
AEA
GEA
GCS
TOTSD
THYS
tSS
VFB=1V
ISW=0.2A/0.7A
ISW=-0.2A/-0.7A
VIN=18V, VEN=VSW=0V
Drain to Source
VFB=0.85V
VFB=1V
C4=0.1µF,IOUT=500mA
Min
4.5
3.65
1.1
2.2
0.907
-0.1
4.3
280
Typ
1.2
0.1
4.00
200
1.5
350
2.5
210
0.925
1.1
100
100
0.1
5.6
0
340
90
90
400
800
5.2
160
20
15
5
VSW1 - VSW2
Note 2: RDSON= ISW1 - ISW2
Note 3: Not tested, guaranteed by design.
Max Unit
18 V
1.4 mA
10 µA
4.25 V
mV
2V
mV
2.7 V
mV
0.943
0.1
V
V
µA
mΩ
mΩ
10 µA
A
mA
400 kHz
kHz
%
0%
V/V
µA/V
A/V
ºC
ºC
ms
µA
May. 2012 Rev. 1. 6
BCD Semiconductor Manufacturing Limited
5
5 Page 
BCD Semiconductor Manufacturing Limited
http://www.bcdsemi.com
IIMMPPOORRTTAANNTT NNOOTTIICCEE
BBCCDD SSeemmiiccoonndduuccttoorr MMaannuuffaaccttuurriinngg LLiimmiitteedd rreesseerrvveess tthhee rriigghhtt ttoo mmaakkee cchhaannggeess wwiitthhoouutt ffuurrtthheerr nnoottiiccee ttoo aannyy pprroodduuccttss oorr ssppeecciiffii--
ccaattiioonnss hheerreeiinn.. BBCCDD SSeemmiiccoonndduuccttoorr MMaannuuffaaccttuurriinngg LLiimmiitteedd ddooeess nnoott aassssuummee aannyy rreessppoonnssiibbiilliittyy ffoorr uussee ooff aannyy iittss pprroodduuccttss ffoorr aannyy
ppaarrttiiccuullaarr ppuurrppoossee,, nnoorr ddooeess BBCCDD SSeemmiiccoonndduuccttoorr MMaannuuffaaccttuurriinngg LLiimmiitteedd aassssuummee aannyy lliiaabbiilliittyy aarriissiinngg oouutt ooff tthhee aapppplliiccaattiioonn oorr uussee
ooff aannyy iittss pprroodduuccttss oorr cciirrccuuiittss.. BBCCDD SSeemmiiccoonndduuccttoorr MMaannuuffaaccttuurriinngg LLiimmiitteedd ddooeess nnoott ccoonnvveeyy aannyy lliicceennssee uunnddeerr iittss ppaatteenntt rriigghhttss oorr
ootthheerr rriigghhttss nnoorr tthhee rriigghhttss ooff ootthheerrss..
MMAAIINN SSIITTEE
B- HCeDadSqeumaritcerosnductor Manufacturing Limited
BNT-S8e0hWCol0a.:D,an1+Yf6gS8e0hi6re0Sam-F2,ih1aiZSacb-niIo2MXnR4d1io-n6uBag2cdC2tR,oD6Sor6haS,MadeFn,maagSnxhihc:uaao+ifnan28gcd06htu0-ua22cir1t3Zio-n32irgZ,4MCh1Luh6iami2Snn2caiu7tifee7adnccteu-rbiansgedLIinmdiutestdrial Park, 200241, China
- WaBfeCr FDabSemiconductor Manufacturing Limited
S8T0ehl0a:nY+-A8g8iFhId6S,Ca-vhZ2iaaD1oSnn-neIc6MRese4idogB8-anB5,Ad9CG1,n04SDar09hol,o1SauYg,nepiFgmCShaiixahcri:acon2+un08idRt06suo2-c(a23Std13oh,-,r5aSCM4nhh5gaia0hnnngaa0uhi0)fa0aCi8c2ot0ur0pr2ion3rg3a,tCiCoohn.,inLatd.
RTeEl:G+8I6O-2N1A-6L485SA14L91E,SFaOx:F+F86IC-2E1-5450 0008
Tel: +86-21-6495 9539, Fax: +86-21-6485 9673
RShEeGnzIhOenNOAffLiceSALES OFFICE
Taiwan Office
SShhaennzghheani SOIfMfic-Be CD Semiconductor Manufacturing Co., Ltd., Shenzhen Office
BCDTSaeimwiacnonOdfuficcteor (Taiwan) Company Limited
SARUCTehohndlaoii:vntnma+aAgn8hEc6Rae,-o7id5o5SFAm5,IM-nN81ao8-2lBb2o0l6gC3e,7CDCS9iek5Srnyc1etuwmeirot,iscrNto(hoSn.Bhd1alu0dnc0ggt6.oh,,rGa3Mira)doCaFxnoiunurzpfhAaoovcrnteagu.1trRi.ioSnon.ga, SdNC,haoFen.nu,stzhLihaatnnedn.DDSOiishsfttefrriiniccczett,h, SSenhheeOnnzzfhfhieecnne,518026, Chin4TTaFea,li:w2+9aB4T8n8Fa8C-,i16wD2,-9a2RSn8-u2e-i16mG,5iR6cuoua2nin8gdG0u8uRcaotnoagdr,R(NToaeaiidw-,HaNune)Di-CHisoturmiDcpti,asTtnrayiciptL,eiTim,aiipteedi,
TFealx::++8866--775555--8888226677985615
Fax: +T8e8l:6+-28-8266-526-226850662808
USA Office
UBSCADOSeffmicieconductor Corp.
B3C3CT00eACA9l9D22:9900+44S515HHe4-4mu5u44n1n,i,ct0tUUwwo-3.nSooS2doAo.4Adud-c2AAt9ovv8ree8..CHHoaaryypwwoarararddt,i,on
TFealx:: ++11--551100--332244--22978888
Fax: +86-755-8826 7865
Fax: +886-2-2656 2806
Fax: +1-510-324-2788
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet AP3503E.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| AP3503 | 3A Synchronous DC-DC Buck Converter | BCD |
| AP3503E | 3A Synchronous DC-DC Buck Converter | BCD |
| AP3503F | 3A Synchronous DC-DC Buck Converter | BCD |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |