LM5122MHX/NOPB Texas Instruments Spare Part

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The LM5122MHX/NOPB device is a multiphase synchronous boost controller for high efficiency synchronous boost regulators. The peak current mode is used for control.
The switching frequency is programmable up to 1MHz. For higher efficiency, the device features two robust N-channel MOSFET gate drivers that support adaptive dead-time control.
An internal charge pump enables 100% duty cycle (bypass operation) of the high-side synchronous switch. Using a clock output with a 180-degree phase offset enables a simple multi-phase interleaved configuration. Additional features include discontinuous mode current limit, adjustable line undervoltage lockout, penghentian termal, and frequency synchronization.

• Maximum Input Voltage: 65 V
• Minimum Input Voltage: 3 V (4.5 V for Start-Up)
• Output Voltage up to 100 V
• Bypass (VOUT = VIN) Operation
• 1.2-V Reference with ±1% Accuracy
• Free-Run and Synchronizable Switching to 1 MHz
• Peak-Current-Mode Control
• Robust 3-A Integrated Gate Drivers
• Adaptive Dead-Time Control
• Optional Diode-Emulation Mode
• Programmable Cycle-by-Cycle Current Limit
• Hiccup-Mode Overload Protection
• Programmable Line UVLO
• Programmable Soft Start
• Thermal Shutdown Protection
• Low Shutdown Quiescent Current: 9 μA
• Programmable Slope Compensation
• Programmable Skip-Cycle Mode Reduces Standby Power
• Allows External VCC Supply
• Inductor DCR Current Sensing Capability
• Multi-phase Capability