LM2574N-ADJG ON Semiconductor, LM2574N-ADJG Datasheet - Page 22

• Manufacturer Part Number: LM2574N-ADJG
• Description: IC REG SW 0.5A ADJ OUTPUT 8-DIP
• Manufacturer: ON Semiconductor
• Type: Step-Down (Buck)r

Specifications of LM2574N-ADJG

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1.23 ~ 37 V
• Current - Output: 500mA
• Frequency - Switching: 52kHz
• Voltage - Input: 4.75 ~ 40 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Output Voltage: 1.23 V to 37 V
• Output Current: 0.5 A
• Input Voltage: 4.75 V to 40 V
• Switching Frequency: 52 KHz
• Operating Temperature Range: - 40 C to + 125 C
• Mounting Style: Through Hole
• Duty Cycle (max): 98 %
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Gnd
+V
in
Figure 37. PC Board Layout Component Side
The LM2574−5 Step−Down Voltage Regulator with 5.0 V @ 0.5 A Output Power Capability.
+
C1
+V
in
= 7.0 to 40 V
Unregulated
DC Input
D1
NOTE: Not to scale.
Gnd
Figure 36. Schematic Diagram of the LM2574−5 Step−Down Converter
22 mF
LM2574−5.0
C1
Typical Application With Through−Hole PC Board Layout
U1
+V
in
L1
5
4
(12)
C1
C2
D1
L1
C2
Pwr
Gnd
(6)
LM2574−5
−
−
−
−
+
2
22 mF, 63 V, Aluminium Electrolytic
220 mF, 16 V, Aluminium Electrolytic
1.0 A, 40 V, Schottky Rectifier, 1N5819
330 mH, RL−1284−330, Renco Electronics
LM2574, NCV2574
Sig
Gnd
http://onsemi.com
(4)
Gnd
V
out
3
(14)
(3)
ON/OFF
(5)
22
1
Output
7
Feedback
D1
1N5819
Figure 38. PC Board Layout Copper Side
330 mH
L1
NOTE: Not to scale.
C2
220 mF
Regulated Output
+V
Gnd
out
= 5.0 V @ 0.5 A