LM2576BM TGS [Tiger Electronic Co.,Ltd], LM2576BM Datasheet - Page 5

• Manufacturer Part Number: LM2576BM
• Description: 3A Step-Down Voltage Regulator
• Manufacturer: TGS [Tiger Electronic Co.,Ltd]

LM2576BM
functional, but specific performance is not guaranteed. For guaranteed specifications and
the best conditions, see the Electrical Characteristics.
* 2 All limi ts guaranteed at room te mperature (standard type face) and at temperature
extremes(bold type face). All room temperature limits are 100% production tested. All
li mits at temp erature extre mes are guaranteed via co rrelation using standard Statistical
Quality Control (SQC) methods.
* 3 External components such as th e catch diode, inductor, input and output capacitors, and
voltage programming resistors can affect switching regulator system performance.
* 4 Outp ut pin sourcing current. No diode, inductor or capacitor connected to output pin.
* 5 Feedback pin removed fro m output and connected to 0V.
* 6 Feedback pin removed fro m output and connected to +12V for the 3.3V, 5V, and the
ADJ version, to force the output transistor switch OFF.
* 7 V
= 40V
I N
* 8 Th e oscillato r frequency reduces to approximately 11 KHz in the even t of an output
short or an overload wh ich causes the regulated output voltage to drop approximately 40%
fro m the nominal output voltage. The self-pro tection feature lo wers the av erag e power
dissipation of the minimu m duty cycle fro m 5 % down to approximately 2%.
TEST CIRCUIT
LM2576BM
LM2576BM-ADJ
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