CM2596SCN263 CHAMP [Champion Microelectronic Corp.], CM2596SCN263 Datasheet - Page 4

• Manufacturer Part Number: CM2596SCN263
• Description: 3A STEP DOWN VOLTAGE REGULATOR
• Manufacturer: CHAMP [Champion Microelectronic Corp.]

Note 1: External components such as the catch diode, inductor, input and output capacitors can affect switching regulator system
performance. Refer to Application Information for details.
Note 2: The oscillator frequency reduces to approximately 11KHz in the event of fault conditions, such as output short or
overload. And the regulated output voltage will drop approximately 40% from the nominal output voltage. This self-protection
feature lowers the average power dissipation by lowering the minimum duty cycle from 5% down to approximately 2%.
Note 3: For these parameters, FB is removed from V
Note 4: V
Note 5: FB is removed from V
BLOCK DIAGRAM
2006/11/27 Rev 1.0
GND
Vin
FB
1
4
3
OUT
pin sourcing current. No diode, inductor or capacitor connect to V
R2*
R1*
Reference
1.23V
+
-
OUT
Error Amplifier
and connected to 0V.
.
150KHz
Oscillator
Champion Microelectronic Corporation
-
+
Comparator
.
Reset
OUT
and connected to +12V to force the output transistor OFF.
3A S
TEP
Thermal Shutdown
Current Limit
OUT
Driver
D
&
.
OWN
.
V
.
.
.
.
OLTAGE
Requlator
Enable
With
CM2596S
R
EGULATOR
Page 4
5
2
ENABLE
Vout