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PDF HT3420 Data sheet ( Hoja de datos )
| Número de pieza | HT3420 | |
| Descripción | 2A 28V Synchronous Buck Converter | |
| Fabricantes | HOTCHIP | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de HT3420 (archivo pdf) en la parte inferior de esta página. Total 15 Páginas | ||
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Features
z 2A Output Current
Wide 4.5V to 28V Operating Input Range
z Integrated Power MOSFET switches
z Output Adjustable from 0.925V to 0.8Vin
z Up to 96% Efficiency
z Programmable Soft-Start
z Stable with Low ESR Ceramic Output
Capacitors
z Fixed 340KHZ Frequency
z Cycle-by-Cycle Over Current Protection
z Short Circuit Protection
z Input Under Voltage Lockout
z Package： SOP-8L
HT3420
2A 28V Synchronous Buck Converter
General Description
The HT3420 is a monolithic synchronous
buck regulator. The device integrates 95 mΩ
MOSFETS that provide 2A continuous load
current over a wide operating input voltage
of 4.5V to 28V. Current mode control
provides fast transient response and cycle-
by-cycle current limit. An adjustable soft-
start prevents inrush current at turn on.
Applications
z Distributed Power Systems
z Networking Systems
z FPGA, DSP, ASIC Power Supplies
z Green Electronics/ Appliances
z Notebook Computers
Typical Application Circuit
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1 page  
Application Description
HT3420
HT3420 Circuit, 5V/2A output
HT3420 Circuit, 5V/2A output with EN function
Note: C2 is required for separate EN signal.
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5 Page 
HT3420
Typical Performance Characteristics
(Vin=12V, Io=0 mA, Temperature = 25 degree C, unless otherwise specified)
Light Load Operation (No load)
Vin=12V, Iin=8.2 mA, Vout=3,3V
Heavy Load Operation (2A Load)
Vin=12V, Vout=3,3V
Startup Vin=12V, Vout=3.3V, Iout=1A
through Vin.
through Enable.
Short Circuit Protection Vin=12V
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11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet HT3420.PDF ] | |
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