LM2574-3.3YN Micrel Inc, LM2574-3.3YN Datasheet - Page 6

• Manufacturer Part Number: LM2574-3.3YN
• Description: IC REG SMPS 0.5A STEP-DOWN 8DIP
• Manufacturer: Micrel Inc
• Type: Step-Down (Buck)r

Specifications of LM2574-3.3YN

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 3.3V
• Current - Output: 500mA
• Frequency - Switching: 52kHz
• Voltage - Input: 4.75 V ~ 40 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 576-3855-5

LM2574
Typical Performance Characteristics (continued)
M9999-072805
-10
-15
-20
-25
25
20
15
10
-5
5
0
-75 -50 -25 0
J U N C TI O N TEM PER ATU R E ( ˚ C )
Feedback Voltage*
* Adjustable version only
Normalized
Normalized toT J = 25˚ C
I LO AD = 100mA
25 50 75 100125150
V IN = 12V
6
-10
-15
-20
20
15
10
-5
5
0
0
Feedback Voltage
vs Duty Cycle*
20
D U TY C YC LE ( % )
40
I LO AD = 100 mA
V IN = 7V
60
V IN = 40V
80
100
Micrel, Inc.
July 2005