L6728 STMicroelectronics, L6728 Datasheet - Page 21

• Manufacturer Part Number: L6728
• Description: IC PWM CTLR 1PH PWRGOOD 10-DFN
• Manufacturer: STMicroelectronics

Specifications of L6728

• Pwm Type: Voltage Mode
• Number Of Outputs: 1
• Frequency - Max: 330kHz
• Duty Cycle: 80%
• Voltage - Supply: 4.5 V ~ 12 V
• Buck: Yes
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: No
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 10-DFN
• Frequency-max: 330kHz
• Output Voltage: 0.8 V
• Output Current: 30 A
• Input Voltage: 1.5 V to 13.2 V
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• For Use With: 497-8228 - BOARD EVALUATION W/L6728497-6418 - BOARD EVAL BASED ON L6728
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

L6728
12
20 A demonstration board
L6728 demonstration board realizes in a four-layer PCB a step-down DC/DC converter and
shows the operation of the device in a general purpose application. The input voltage can
range from 5 V to 12 V buses and the output voltage is fixed at 1.25 V. The application can
deliver an output current up to 30 A. The switching frequency is 300 kHz.
Figure 10. 20 A demonstration board (left) and components placement (right)
Figure 11. L6728 - 20 A demonstration board top (left) and bottom (right) layers
Figure 12. L6728 - 20 A demonstration board inner layers
20 A demonstration board
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