L4972AD STMicroelectronics, L4972AD Datasheet - Page 13

• Manufacturer Part Number: L4972AD
• Description: IC REG SW 2A 5.1-40V STDN 20SOIC
• Manufacturer: STMicroelectronics
• Type: Step-Down (Buck)r

Specifications of L4972AD

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 5.1 ~ 40 V
• Current - Output: 2A
• Frequency - Switching: 100kHz
• Voltage - Input: 15 ~ 50 V
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: 20-SOIC (7.5mm Width)
• Power - Output: 3.75W
• Output Voltage: 40 V
• Output Current: 2 A
• Input Voltage: 15 V to 50 V
• Switching Frequency: 90 KHz to 110 KHz
• Operating Temperature Range: - 40 C to + 150 C
• Mounting Style: SMD/SMT
• Duty Cycle (max): 90 %
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-4206-5; 497-4206-5; 497-4207-5

Figure 24. Switching Frequency vs. Input
Voltage (see fig. 8).
Figure 25. Switching Frequency vs. Junction
Temperature (see fig. 8).
Figure 26. Switching Frequency vs. R4 (see
fig.8).
Figure 27. Maximum Duty Cycle vs. Frequency.
Figure 28. Supply Voltage Ripple Rejection vs.
Frequency (see fig. 8).
Figure 29. Efficiency vs. Output Voltage.
L4972A
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