Document
AMC DOC. #: AMC7585_E (LF) Feb 2005 ®
ADD MICROTECH CORP.
DESCRIPTION
AMC7585
5A LOW DROPOUT REGULATOR
FEATURES
The AMC7585 is a high performance low dropout regulator rated for 5A output current with fixed 2.5V/3.3V/5.0V and adjustable output. It is designed for use in applications requiring low dropout characteristics over the rated current range. On chip trimming adjusts the reference voltage to 1%. These features are ideal for low voltage microprocessor applications requiring a regulated 2.5V to 3.6V power supply. In addition, the AMC7585 provides the device protections including over current and thermal shutdown. Also, reverse battery protection scheme limits the reverse current when the input voltage falls below the output.
Input-Output differential of typical 1.1V at 5A and low quiescent current Output current is excess of 5A Fast transient response Reverse battery protection Short circuit protection Internal thermal overload protection Available in 3L plastic TO-220 and surface mount 3L TO-263/252 packages Pin assignment identical to EZ1585B and LT1585A series.
APPLICATIONS
PACKAGE PIN OUT
3.VIN 2.VOUT 1.ADJ/GND 3.VIN 2.VOUT 1.ADJ/GND
Pentium® Processor Supplies PowerPCTM Supplies Computer Add-On Cards Other Applications Requiring Low Dropout Voltage Over Rated Current. AMC7585-2.5 – 2.5V Fixed AMC7585-3.3 – 3.3V Fixed AMC7585-5.0 – 5.0V Fixed AMC7585-ADJ – Adjustable
3-Pin Plastic TO-220 (Top View)
3-Pin Plastic TO-252 Surface Mount (Top View)
3.VIN 2.VOUT 1.ADJ/GND
3.VIN 2.VOUT 1.ADJ
3-Pin Plastic TO-263 (ST) Surface Mount (Top View) ORDER INFORMATION TO-263 TO-263-3 ST3 3-pin 3-pin
AMC7585-ADJST3
3-Pin Plastic TO-263-3 (ST3) Surface Mount (Top View)
TA (OC)
0 to 70 0 to 70 0 to 70 0 to 70
T
TO-220 3-pin
ST
SJ 3-pin
TO-252
AMC7585-X.XT AMC7585-X.XTF(Lead Free) AMC7585-ADJT
AMC7585-X.XST AMC7585-X.XSTF(Lead Free) AMC7585-ADJST
AMC7585-X.XSJ AMC7585-X.XSJF(Lead Free) AMC7585-ADJSJ
AMC7585-ADJTF(Lead Free) AMC7585-ADJSTF(Lead Free) AMC7585-ADJST3F(Lead Free) AMC7585-ADJSJF(Lead Free)
Note:
1.All surface-mount packages are available in Tape & Reel. Append the letter “T” to part number (i.e., AMC7585-X.XSTT, AMC7585-X.XST3T, AMC7585-X.XSJT ). 2.The letter ”F” is marked for Lead Free process.
1 www.addmtek.com
Copyright © 2002, ADD Microtech Corp.
AMC DOC. #: AMC7585_E (LF) Feb 2005
AMC7585
5A LOW DROPOUT REGULATOR
TYPICAL APPLICATION
VIN ≥ 4V
AMC7585 -X.X
VOUT 2.5V/3.3V/5V C2 22µF
C1 10µF
AMC7585-X.X application schematic
VIN
AMC7585 ADJ ADJ *C1 10µF R1 1% R2 1%
VOUT
**C2 22µF
VOUT = VREF (1+(R2/R1)) + IADJR2
* REQUIRED IF REGULATOR IS LOCATED FAR FROM POWER SUPPLY FILTER ** DESIGN C2 AS CLOSE TO VOUT PIN AS POSSIBLE
AMC7585-ADJ application schematic
Copyright © 2002, ADD Microtech Corp.
2
www.addmtek.com
AMC DOC. #: AMC7585_E (LF) Feb 2005
AMC7585
5A LOW DROPOUT REGULATOR
(Note) 7V 150 OC -65 OC to 150 OC 300 OC
ABSOLUTE MAXIMUM RATINGS Input Voltage (VIN) Operating Junction temperature Storage .