CM2576 Datasheet, PDF (1/12 Pages) Champion Microelectronic Corp. – 3A STEP DOWN VOLTAGE REGULATOR

CM2576
3A STEP DOWN VOLTAGE REGULATOR
GENERAL DESCRIPTION
FEATURES
The CM2576 series are step-down switching regulators with ! Guaranteed 3A output current
all required active functions. It is capable of driving 3A load
! 3.3V, 5V, and adjustable versions
with excellent line and load regulations. These devices are
! Wide input voltage range, up to 40V
available in fixed output voltages of 3.3V, 5V, and an
! Internal oscillator of 52KHz fixed frequency
adjustable output version.
! Wide adjustable version output voltage range, from
1.23V to 37V±4% max over line and load conditions
The CM2576 series offers a high-efficiency replacement for ! Low standby current, typ. 70µA, at shutdown mode
popular three-terminal linear regulators. Also it requires a
! Requires only 4 external components
minimum number of external components. It substantially not ! Thermal shutdown and current limit protection
only reduces the area of board size but also the size of the
! P+ product enhancement tested
heat sink, and in some cases no heat sink is required.
±4% tolerance on output voltage within specified input
voltages and output load conditions is guaranteed. Also, the
oscillator frequency accuracy is within ±10%. External
shutdown is included, featuring 70µA (typical) standby current.
The output switch includes cycle-by-cycle current limiting, as
well as thermal shutdown for full protection under fault
conditions.
APPLICATIONS
! LCD Monitors
! ADD-ON Cards Switching Regulators
! High Efficiency Step-Down Regulators
! Efficient Pre-regulator for Linear Regulators
ORDERING INFORMATION
Package Type
TO-220
TO-263
CM2576SCN220
CM2576SCN263
CM2576ZJCN220
CM2576ZJCN263
CM2576CN220
CM2576CN263
Temperature Range
-40℃ ~ +125℃
-40℃ ~ +125℃
-40℃ ~ +125℃
Output Voltage
3.3V
5.0V
ADJ.
2003/08/07 Preliminary Rev. 1.1
Champion Microelectronic Corporation
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