AMC2576 Datasheet, PDF (1/14 Pages) ADDtek Corp – 3A STEP DOWN VOLTAGE REGULATOR

AMC2576
www.addmtek.com
3A STEP DOWN VOLTAGE REGULATOR
DESCRIPTION
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.
APPLICATIONS
FEATURES
„ 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
PACKAGE PIN OUT
„ LCD Monitors
„ ADD-ON Cards Switching Regulators
„ High Efficiency Step-Down Regulators
„ Efficient Pre-regulator for Linear
Regulators
VOLTAGE OPTIONS
AMC2576-3.3 – 3.3V Fixed
AMC2576-5.0 – 5.0V Fixed
AMC2576-ADJ – Adjustable Output
5. Enable
4. FB
3. GND
2. VOUT
1. VIN
5-Pin Plastic TO-220
(Top View)
5. Enable
4. FB
3. GND
2. VOUT
1. VIN
5. Enable
4. FB
3. GND
2. VOUT
1. VIN
5-Pin Plastic TO-263
Surface Mount
(Top View)
5-Pin Plastic TO-220B
(Top View)
(Side View)
VIN 1
VOUT 2
FB 3
Enable 4
8 GND
7 GND
6 GND
5 GND
SO-8
(Top View)
ORDER INFORMATION
Temperature
Range
Plastic
P ^TO-220
5-pin
AMC2576-ADJP
Plastic
PB TO-220B
5-pin
AMC2576-ADJPB
Plastic
DD ^TO-263
5-pin
AMC2576-ADJDD
DM ^{Plastic SO}
8pin
AMC2576-ADJDMF
-40°C≤ T_J ≤ 125°C
AMC2576-ADJPF
AMC2576-X.XP
AMC2576-ADJPBF AMC2576-ADJDDF AMC2576-X.XDMF
AMC2576-X.XPB AMC2576-X.XDD
AMC2576-X.XPF AMC2576-X.XPBF 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