AMC2576
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Voltage, VIN
45V
ENABLE Pin Input Voltage
-0.3V ≤ V ≤ VIN
150°C
Operating Junction Temperature, TJ
Storage Temperature Range
-65°C to 150°C
260°C
Lead Temperature (soldiering, 10 seconds)
Note 1:
Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground. Currents are positive into,
negative out of the specified terminal.
RECOMMENDED OPERATING RATINGS
Temperature Range
Input Voltage, VIN
-40°C ≤ TJ ≤ 125°C
40V(Max.)
THERMAL DATA
P,PB, DD PACKAGE:
3.0°C /W
45°C /W
Thermal Resistance-Junction to Tab, θJT
Thermal Resistance-Junction to Ambient, θJA
Junction Temperature Calculation: TJ = TA+ (PD × θJA).
The θJA numbers are guidelines for the thermal performance of the device/pc-board system.
All of the above assume no ambient airflow.
BLOCK DIAGRAM
VIN
1
Regulator
With
Enable
Thermal Shutdown
52KHz
Oscillator
ENABLE
5
&
FB
Current Limit
4
R2*
R1*
Comparator
Driver
Error
Amplifier
VOUT
2
1.23V
Reference
Reset
GND
3
VOUT = 3.3V
VOUT = 5.0V
: R2/R1 = 1.7
: R2/R1 = 3.1
: R2 = 0
VOUT = Adjustable
R1 = Open
Copyright © 2006 ADDtek Corp.
3
DD007_E -- DECEMBER 2006
ADDTEK [ ADDTEK CORP ]
