CM2576CN220 CHAMP [Champion Microelectronic Corp.], CM2576CN220 Datasheet - Page 4

• Manufacturer Part Number: CM2576CN220
• Description: 3A STEP DOWN VOLTAGE REGULATOR
• Manufacturer: CHAMP [Champion Microelectronic Corp.]

CM2576
3A S
D
V
R
TEP
OWN
OLTAGE
EGULATOR
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
and connected to +12V to force the output transistor OFF.
OUT
Note 4: V
pin sourcing current. No diode, inductor or capacitor connect to V
.
OUT
OUT
Note 5: FB is removed from V
and connected to 0V.
OUT
BLOCK DIAGRAM
Preliminary
2003/08/07
Champion Microelectronic Corporation
Page 4
Rev. 1.1