AMC2576
3A STEP DOWN VOLTAGE REGULATOR
www.addmtek.com
DESCRIPTION
FEATURES
The AMC2576 series is a step-down switching regulator with
all the required active functions. It is capable of driving 3A load
with excellent line and load regulations. These devices are
available in fixed output voltages of 3.3V, 5V, and an adjustable
output version.
The AMC2576 series offers a high-efficiency replacement for
popular three-terminal linear regulators. It requires only a
minimum number of external components. Substantially, it reduces
not only the area of board size but also the size of the heat sink. In
some cases, no heat sink is required.
The ± 4% tolerance on output voltage within specified input
voltages and output load conditions is guaranteed. The oscillator
frequency accuracy is within ±10%. External shutdown is included,
featuring 70µA(typical) standby current. The output switch
includes cycle-by-cycle current limitation, as well as thermal
shutdown for full protection under fault conditions.
Guaranteed 3A output current
3.3V, 5V and adjustable output versions
Wide input voltage range, up to 40V
Internal oscillator of 52 KHz fixed
frequency
Wide adjustable version output voltage
range, from 1.23V to 37V ±4% max over
line and load conditions
Low standby current, typ. 70µA, at
shutdown mode
Requires only 4 external components
Thermal shut down and current limit
protection
P+ Product enhancement tested
APPLICATIONS
PACKAGE PIN OUT
5. Enable
5. Enable
LCD Monitors
4. FB
4. FB
3. GND
2. VOUT
3. GND
2. VOUT
1. VIN
ADD-ON Cards Switching Regulators
High Efficiency Step-Down Regulators
1. VIN
5-Pin Plastic TO-263
Surface Mount
(Top View)
Efficient Pre-regulator for Linear
Regulators
5-Pin Plastic TO-220
(Top View)
5. Enable
4. FB
3. GND
2. VOUT
VOLTAGE OPTIONS
1. VIN
AMC2576-3.3
AMC2576-5.0
AMC2576-ADJ – Adjustable Output
–
–
3.3V Fixed
5.0V Fixed
5-Pin Plastic TO-220B
(Top View)
(Side View)
1
2
3
4
8
7
6
5
VIN
VOUT
GND
GND
GND
GND
FB
Enable
SO-8
(Top View)
ORDER INFORMATION
Plastic
TO-220
Plastic
TO-263
Plastic
TO-220B
Plastic SO
8pin
AMC2576-ADJDMF
AMC2576-ADJPBF AMC2576-ADJDDF AMC2576-X.XDMF
Temperature
P
PB
DD
DM
Range
5-pin
5-pin
5-pin
AMC2576-ADJPB
AMC2576-ADJP
AMC2576-ADJPF
AMC2576-ADJDD
-40°C≤ TJ ≤ 125°C
AMC2576-X.XP
AMC2576-X.XPF
AMC2576-X.XPB
AMC2576-X.XPBF
AMC2576-X.XDD
AMC2576-X.XDDF
Note: 1.All surface-mount packages are available in Tape & Reel. Append the letter “T” to part number (i.e.AMC2576-X.XDMFT,
AMC2576-X.XDDT).
2.The letter “F” is marked for Lead Free process.
Copyright © 2006 ADDtek Corp.
1
DD007_E -- DECEMBER 2006
ADDTEK [ ADDTEK CORP ]
