MD1421N

Input Voltage :
Switching Frequency :
Output Voltage :
Output Current :
Number of Outputs :
Duty Cycle (Max) :
Maximum Operating Temperature :
Mounting Style : SMD/SMT
Package / Case : SSOP-32


Features:

·Input Voltage range 8-40V
·Maximum Output Current 3A
·Included main MOSFET switch and synchronous rectification MOSFET
·Output 3.3V / 5V (Selective with output switching terminal)
·High Efficiency typ. 95% (at:Vin=8V, Vout=5V, Iout=1A)
·Fixed Frequency 250kHz PWM Control
·Over Current Protection Function
·Low Input Voltage Protection Function (UVLO)
·Thermal Shut Down Function
·Remote control On / Off function


Pinout




Specifications

Item	Symbol	Rating	Unit
Line voltage	VIN	42	V
Output MOS input voltage	VDD	42	V
Output current ( A V E )	IOUTave	3	A
Output current ( P E A K )	OUTpeak	4	A
Remote control voltage	VRC	5.5	°C
Storage temperature	Tstg	-40~150	°C
Junction temperature	Tj	150	°C

Description

MD1421N is a non-isolated, PWM control stepping down DC to DC converter power IC including main MOSFET switch and synchronous rectification MOSFET inside. It has maximum 15W ( 5V, 3A ) output power and high efficiency in wide range. MD1421N also has wide input voltage range ( 8 - 40V ) and it is possible to get 3.3V or 5V output voltage by selecting terminal. Its package is new compact surface mount type (SSOP-32) and it is possible to design DC to DC converter with fewer external components and smaller mounting area.