LM2825N-ADJ

Duty Cycle (Max) :
Number of Outputs : 1
Maximum Operating Temperature : + 85 C
Mounting Style : Through Hole
Output Current : 1 A
Input Voltage : 40 V
Switching Frequency : 150 KHz
Package / Case : PDIP-24
Output Voltage : 1.23 V to 15 V


Features:

` Minimum design time required
 `3.3V,5V and 12V fixed output versions
 `Two adjustable versions allow1.23Vto15V output
`Wide input voltage range,up to 40V
`Low-power standby mode,I<sub>Q</sub> typically 65 A
` High efficiency,typically 80%
`±4% outputv oltage tolerance
` Excellent line and load regulation
` TTL shutdown capability/programmable Soft-start
` Thermal shutdown and currentl imit protection
` -40to+85 ambient temperature range


Application

·Simple high-efficiency step-down (buck) regulator
·On-card switching regulators
·Efficientpre-regulator for linear regulators
·Distributed power systems
·DC/DC module replacement


Pinout




Specifications

`Maximum Input Supply(V<sub>IN</sub>)........+45V
`SD/SS Pin Input Voltage(Note₂)......6V
`OutputPinVoltage
   (3.3V,5.0V and ADJ) ............-1VV9V
   (12V and H-ADJ) ..............-1V  V16V
`ADJ Pin Voltage(ADJ,H-ADJ only).......0.3VV 25V
`Power Dissipation ..............Internally  Limited
`Storage Temperature Range.........-40 to +125


Description

The LM2825N-ADJ is a complete 1A DC-DC Buck converter pack- aged in a 24-lead molded Dual-In-Line integrated circuit package.

Contained within the package are all the active and passive components for a  high efficiency step-down(buck) switching regulator.Available in fixed output voltages of 3.3V,5Vand 12V,as well as two adjustable versions,these devices can provide up to 1A of load current with fully guarante edelectri- cal specifications.

Self-contained,this converter is also fully protected from out- put fault conditions,such as excessive load current,short ircuits,or excessive temperatures.