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首页 > Products > Power Management > DC/DC Step-Down Converter > Buck Step-Down Converter >CXSD62621HF 18V/3A Sync. Step-Down Converter Monolithic Buck Switching Regulator Based on I2 Architecture 4.5V to 18V Operating Input Provides 3A Continuous Output Current Through Two Integrated N-Channel MOSFETs
CXSD62621HF 18V/3A Sync. Step-Down Converter Monolithic Buck Switching Regulator Based on I2 Architecture 4.5V to 18V Operating Input Provides 3A Continuous Output Current Through Two Integrated N-Channel MOSFETs

CXSD62621HF is a monolithic step-down switching regulator based on the I2 architecture for fast transient response. It operates in the input range of 4.5V ~ 18V, and provides 3A continuous output current through two integrated N-channel MOSFETs. The internal synchronous power switch provides high efficiency without the use of external Schottky diodes. 4.5V to 18V Operating Input Range
3A output current efficiency up to 95% 1MHz switching frequency 1% feedback voltage accuracy internal soft start input undervoltage lockout current out of control
Thermal protection Output short circuit protection

CXSD62621HF 18V/3A Sync. Step-Down Converter Monolithic Buck Switching Regulator Based on I2 Architecture 4.5V to 18V Operating Input Provides 3A Continuous Output Current Through Two Integrated N-Channel MOSFETs
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  1. 1.Product overview       2.Product Features     Mx6嘉泰姆

  2. 3.Scope of application       4.Technical Specification Download(PDF Document)Mx6嘉泰姆

  3. 5.Product packaging       6.Circuit schematic  Mx6嘉泰姆
    7.Related ProductsMx6嘉泰姆

Product overview

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The CXSD62621H and CXSD62621HF are monolithic buck switching regulator based on I2 architecture for fast transient response. Operating with an input range of 4.5V~18V, CXSD62621H and CXSD62621HF deliver 3A of continuous output current with two integrated N-Channel MOSFETs. The internal synchronous power switches provide high efficiency without the use of an external Schottky diode. At light loads, CXSD62621H operates in low frequency to maintain high efficiency. CXSD62621H and CXSD62621HF guarantee robustness with output short protection, thermal protection, current run-away protection and input under voltage lockout. CXSD62621H and CXSD62621HF are available in SOT563 package, which provide a compact solution with minimal external components.

   Product FeaturesReturn to TopMx6嘉泰姆

    4.5V to 18V operating input range 3A output currentMx6嘉泰姆
 Up to 95% efficiencyMx6嘉泰姆
 PFM mode (CXSD62621H) at light loadMx6嘉泰姆
 FCC mode (CXSD62621HF) at light loadMx6嘉泰姆
 1MHz switching frequencyMx6嘉泰姆
 1% feedback voltage accuracyMx6嘉泰姆
 Internal soft-startMx6嘉泰姆
 Input under voltage lockoutMx6嘉泰姆
 Current run-away protectionMx6嘉泰姆
 Output short protectionMx6嘉泰姆
 Thermal protectionMx6嘉泰姆
 Available in SOT563 packageMx6嘉泰姆

   Scope of applicationReturn to TopMx6嘉泰姆

    Distributed Power SystemsMx6嘉泰姆
 Networking SystemsMx6嘉泰姆
Ming FPGA, DSP, ASIC Power SuppliesMx6嘉泰姆
 Green Electronics/ AppliancesMx6嘉泰姆
 Notebook ComputersMx6嘉泰姆

   Technical Specification (Product PDF)Return to Top Mx6嘉泰姆

If you need detailed PDF specifications, please scan WeChat and contact us. You can also get free samples and technical support.!Mx6嘉泰姆

      QQ截图20160419174301.jpgMx6嘉泰姆

   Product packaging diagramReturn to TopMx6嘉泰姆

  Mx6嘉泰姆
   Circuit schematicReturn to TopMx6嘉泰姆

Mx6嘉泰姆

  Related Chip Selection GuideReturn to Top                More similar products......Mx6嘉泰姆

DC/DC Buck Converter
Product model Encapsulation Input voltage (V) Feedback voltage.(V) Output current Quiescent current Soft Start Switching frequency (KHz) Working mode Protection mode control method
(A) (Smooth)
CXSD62560 SOT23-5,SOT23-6 2.5~5.5 0.6 1.5 50 Internal 1500 FCCM Auto-recovery PCM
CXSD62561 DFN2X3-8,DFN2X2-8 2.5~5.5 0.6 Dual-Channel 1.5A 100 Internal 1500 FCCM Auto-recovery PCM
CXSD62562 　 2.5~5.5 0.6 2 60 Internal 2200 PFM Auto-recovery PCM
CXSD62563 SOT23-5,SOT563 2.5~6 0.6 1 50 Internal 1500 PFM Auto-recovery COT
CXSD6201 SOT23-5,SOT23-6 2.5~6 0.6 1.2 40 Internal 1500 PFM Auto-recovery PCM
CXSD62564 SOT23-5,SOT23-6 2.5~6 0.6 2 40 Internal 1500 PFM Auto-recovery PCM
CXSD62566 SOT23-5,SOT23-6 2.5~6 0.6 2 60 Internal 1000 PFM Auto-recovery COT
CXSD62567 SOT23-5,SOT23-6 2.5~6 0.6 2.5 60 Internal 1000 PFM Auto-recovery PCM
CXSD62567R SOT23-5,SOT23-6 2.5~6 0.6 2.5 60 Internal 1000 PFM Latch-off PCM
CXSD62568 DFN2X2-8 2.5~6 0.6 3 60 Internal 1000 PFM Latch-off PCM
CXSD62569 DFN2X2-8 2.5~6 0.6 3 60 Internal 1000 PFM Auto-recovery PCM
CXSD6205T TSOT23-6 3.7~18 0.765 2 120 Internal 800 PFM Auto-recovery PCM
CXSD6205S TSOT23-6,SOT563-6 3.7~18 0.8 2 120 Internal 800 PFM Auto-recovery PCM
CXSD6206S TSOT23-6 3.7~18 0.6 2 120 Internal 800 PFM Auto-recovery PCM
CXSD6206C SOT23-6 4.5~18 0.6 2 100 Internal 750 PFM Auto-recovery PCM
CXSD62570T TSOT23-6,TSOT23-8 4~18 0.765 2 220 Internal 800 TSOT23-6: PFM Auto-recovery COT
CXSD62570TF TSOT23-6 4~18 0.765 2 220 Internal 800 PFM Auto-recovery COT
CXSD62571 SOT563-6 TSOT23-6 3.8~18 0.8 3 120 Internal 500 PFM Auto-recovery PCM
CXSD62572 TSOT23-6 4~18 0.8 3 220 Internal 800 PFM Auto-recovery COT
CXSD62572T TSOT23-6,TSOT23-8 4~24 0.765 3 220 Internal 800 TSOT23-6: PFM;TSOT23-8: Selectable Auto-recovery COT
CXSD62572TF TSOT23-6 4~18 0.765 3 220 Internal 800 FCCM Auto-recovery COT
CXSD62573 TSOT23-6 TSOT23-8 4~18 0.765 4 220 Internal 600 PFM Auto-recovery COT
CXSD62574 QFN3X3-20 4~20 0.6 6 60 Internal 500 PFM Auto-recovery COT
CXSD62575 QFN3X3-20 4~20 0.6 8 60 Internal 500 PFM Auto-recovery COT
CXSD62576 QFN3X3-20 4~20 0.6 10 60 Internal 500 PFM Auto-recovery COT
CXSD6203 ESOP8 4.6~20 0.923 3 55 Adjustable 340 PFM Auto-recovery PCM
CXSD6214 TSOT23-6 3.7~23 0.8 2 120 Internal 800 PFM Auto-recovery PCM
CXSD6212S SOP8 4.5~24 0.923 2 50 Internal 500 PFM Auto-recovery PCM
CXSD6213 TSOT23-6 4.7~24 0.8 2 100 Internal 570 FCCM Auto-recovery PCM
CXSD6202S TSOT23-6 4~24 0.6 3 220 Internal 500 PFM Auto-recovery COT
CXSD62577 TSOT23-8 4~24 0.8 3 220 Internal 450 Selectable Auto-recovery COT
CXSD6208S SOT23-6 4.5~26 0.8 1.2 40 Internal 1200 PFM Auto-recovery PCM
CXSD6208F SOT23-6 4.5~26 0.8 1.2 40 Internal 1200 FCCM Auto-recovery PCM
CXSD6208A SOT23-6 4.5~26 0.8 1.2 40 Internal 750/1100 FCCM Auto-recovery PCM
CXSD62578A QFN3X3-20 4~23 0.6 8 60 Internal 500 PFM Latch-off COT
CXSD62578B QFN3X3-20 4~23 3.3 8 60 Internal 750 PFM Latch-off COT
CXSD62578C QFN3X3-20 5.5~23 5.1 8 60 Internal 750 PFM Latch-off COT
CXSD62579A QFN3X3-20 4~23 0.6 6 60 Internal 500 PFM Latch-off COT
CXSD62579B QFN3X3-20 4~23 3.3 6 60 Internal 750 PFM Latch-off COT
CXSD62579C QFN3X3-20 5.5~23 5.1 6 60 Internal 750 PFM Latch-off COT
CXSD62580A QFN3X3-20 4~23 0.6 10 60 Internal 500 PFM Latch-off COT
CXSD62580B QFN3X3-20 4~23 3.3 10 60 Internal 750 PFM Latch-off COT
CXSD62580C QFN3X3-20 5.5~23 5.1 10 60 Internal 750 PFM Latch-off COT
CXSD6210 SOT23-6 4.7~40 0.8 0.6 40 Internal 2000 PFM Auto-recovery PCM
CXSD6215B SOT23-6 4.7~40 0.8 0.6 40 Internal 800 PFM Auto-recovery PCM
CXSD6216 SOT23-6 4.7~40 0.8 1 40 Internal 1100 FCCM Auto-recovery PCM
CXSD6209A ESOP8 3.6~40 0.8 2 65 Internal 440 PFM Auto-recovery PCM
CXSD6211 ESOP8 4.5~40 0.8 3 65 Internal Adjustable PFM Auto-recovery PCM
CXSD62614 SOT23-6 3.8~27 0.8 2 120 Internal 1400 PFM Auto-recovery PCM
CXSD62615 TSOT23-6 4.5~18 0.76 5 130 Internal 560 PFM Auto-recovery COT
CXSD62616S SOT23-6 4.5~18 0.6 3 150 Internal 1000 PFM Auto-recovery COT
CXSD62617TF SOT23-6 4.5~18 0.765 2 150 Internal 600 FCCM Auto-recovery COT
CXSD62618TF SOT23-6 4.5~18 0.765 3 150 Internal 600 FCCM Auto-recovery COT
CXSD62619 SOT23-6 4.5~28 0.6 2 120 Internal 600 PFM Auto-recovery PCM
CXSD62620AF SOT563 4.5~18 0.8 2 140 Internal 600 FCCM Auto-recovery COT
CXSD62621F SOT563 4.5~18 0.8 3 140 Internal 600 FCCM Auto-recovery COT
CXSD62621HF SOT563 4.5~18 0.8 3 140 Internal 1000 FCCM Auto-recovery COT
CXSD62622 DFN42x4-10 4.5~45 0.8 5 180 Adjustable 100~2000 PFM Auto-recovery PCM
CXSD62623 ESOP8/EMSOP10 4.5~60 0.8 2 130 Internal 200~2000 PFM Auto-recovery PCM
CXSD62624 DFN2x2-8 2.5~6 0.45 2 30 Internal 2000 PFM Auto-recovery COT
CXSD62625 ESOP8 4.5~18 0.765 5 130 Internal 580 PFM Auto-recovery COT
CXSD62626 ESOP8 4.5~18 0.765 6 130 Internal 580 PFM Auto-recovery COT

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