CM2596S_06 Datasheet, PDF (1/13 Pages) Champion Microelectronic Corp. – 3A STEP DOWN VOLTAGE REGULATOR

CM2596S
3A STEP DOWN VOLTAGE REGULATOR
GENERAL DESCRIPTION
The CM2596S series are step-down switching regulators with
all 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 CM2596S series offers a high-efficiency replacement for
popular three-terminal linear regulators. Also it requires a
minimum number of external components. It substantially not
only reduces the area of board size but also the size of the
heat sink, and in some cases no heat sink is required.
FEATURES
‹ Guaranteed 3A output current
‹ 3.3V, 5V, and adjustable versions
‹ Wide input voltage range, up to 40V
‹ Internal oscillator of 150KHz fixed frequency
‹ Wide adjustable version output voltage range, from
1.23V to 37V±4% max over line and load conditions
‹ Low standby current, typ. 150μA, at shutdown mode
‹ Requires only 4 external components
‹ Thermal shutdown and current limit protection
‹ Requires only 4 external components
‹ Excellent line and load regulation specifications
‹ TTL shutdown capability
±4% tolerance on output voltage within specified input
voltages and output load conditions is guaranteed. Also, the
oscillator frequency accuracy is within ±15%. External
shutdown is included, featuring 150μA (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
CM2596SSCN220
CM2596SZJCN220
CM2596SCN220
CM2596SGSCN220
CM2596SGZJCN220
CM2596SGCN220
CM2596SGCN220B
TO-263
CM2596SSCN263
CM2596SZJCN263
CM2596SCN263
CM2596SGSCN263
CM2596SGZJCN263
CM2596SGCN263
CM2596S X X X X
Output Voltage
3.3V
5.0V
ADJ.
3.3V
5.0V
ADJ.
ADJ
Lead Free
Blank: Normal
G: Lead Free package
Output Voltage
C: Adjustable
SC: 3.3V
ZJC: 5V
Package Type
N: TO package
Package
220:TO-220
263:TO-263
2006/11/27 Rev 1.0
Champion Microelectronic Corporation
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