LM5122QMH/NOPB Part Information
Details for LM5122QMH/NOPB by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management

Part Description
The LM5122 is a multiphase capable synchronous boost controller intended for high-efficiency synchronous boost regulator applications. The control method is based upon peak current mode control. Current mode control provides inherent line feedforward, cycle-by-cycle current limiting and ease of loop compensation. The switching frequency is programmable up to 1 MHz. Higher efficiency is achieved by two robust Nchannel MOSFET gate drivers with adaptive deadtime control. A user-selectable diode emulation mode also enables discontinuous mode operation for improved efficiency at light load conditions. An internal charge pump allows 100% duty cycle for high-side synchronous switch (Bypass operation). A 180º phase shifted clock output enables easy multiphase interleaved configuration. Additional features include thermal shutdown, frequency synchronization, hiccup mode current limit and adjustable line undervoltage lockout.
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Part Specifications
Supply Voltage Min | 4.5V |
Supply Voltage Max | 65V |
No. of Outputs | 1 Output, 1Outputs |
Duty Cycle (%) | 100% |
Controller IC Case Style | HTSSOP |
No. of Pins | 20Pins |
Switching Frequency | 975kHz |
Topology | Synchronous Boost (Step Up) |
Operating Temperature Min | -40°C |
Operating Temperature Max | 125°C |
Product Range | - |
Automotive Qualification Standard | - |
RoHS Phthalates Compliant | Yes |
MSL | MSL 1 - Unlimited |
SVHC | No SVHC (27-Jun-2018) |
Output Current | 15A |
Primary Input Voltage | 65V |
Alternative Part Descriptions
- Automotive, 3-V to 65-V wide VIN, current mode synchronous boost controller with multiphase | Texas Instruments