CM2576 Datasheet, PDF (2/12 Pages) Champion Microelectronic Corp. – 3A STEP DOWN VOLTAGE REGULATOR

PIN CONFIGURATION
TO-220
Top View
CM2576
3A STEP DOWN VOLTAGE REGULATOR
TO-263
Top View
ENABLE
5
FB
4
GND
3
VOUT
2
V IN
1
12 3 4 5
ABSOLUTE MAXIMUM RATINGS
Input Voltage (VPOWER) …….………………………………………….……. +45V
ENABLE Pin Input Voltage ….…………………………………. –0.3V ≦V≦VIN
Operating Junction Temperature Range, TJ ……………...… 0℃ to +150℃
Storage Temperature ………………………………….….…... -65℃ to +150℃
Lead Temperature (10 sec.) ……..……………………..….…………….... 260℃
POWER DISSIPATION TABLE
Package
TO-220
TO-263
Note:
ΘJA (℃/W)
45
45
Derating factor (mW/℃)
TA >= 25℃
22.2
22.2
TA <= 25℃
Power rating (mW)
2775
2775
TA = 70℃
TA = 85℃
Power rating (mW) Power rating (mW)
1776
1443
1776
1443
1. ΘJA : Thermal Resistance-Junction to Ambient, DF: Derating factor, PO: Power consumption.
Junction Temperature Calculation: TJ = TA + (PD x ΘJA ), PO = DF x (TJ – TA)
The ΘJA numbers are guidelines for the thermal performance of the device/PC-board system.
All of the above assume no ambient airflow.
2. ΘJT : Thermal Resistance-Junction to Ambient, TC: case (Tab) temperature, TJ = TC + (PD x ΘJA )
RESOMMENDED OPERATING CONDITIONS
Input Voltage (VIN)
Temperature Range
Parameter
Symbol
VIN
TJ
Min.
-40
Typ.
Max
Units
40
V
125
℃
2003/08/07 Preliminary Rev. 1.1
Champion Microelectronic Corporation
Page 2