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
RoHS Compliant

Alternative Part Descriptions

  • SWITCHING CONTROLLER, 1MHZ, HTSSOP-20; Supply Voltage Min:4.5V; Supply Voltage Max:65V; No. of Outputs:1 Output; Duty Cycle (%):100%; Controller IC Case Style:HTSSOP; No. of Pins:20Pins; Switching Frequency:975kHz; RoHS Compliant: Yes | Newark Electronics
  • Automotive, 3-V to 65-V wide VIN, current mode synchronous boost controller with multiphase | Texas Instruments

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