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TEXAS INSTRUMENTS LM5122MHE/NOPB
DC/DC Controller, Poly Phase, 4.5V to 65V, 1 Output, Synchronous Boost, 875kHz, HTSSOP-20
- Manufacturer:
- TEXAS INSTRUMENTS TEXAS INSTRUMENTS
- Manufacturer Part No:
- LM5122MHE/NOPB
- Order Code:
- 3008667
-
- ECAD / MCAD
-
Product Overview
The LM5122MHE/NOPB 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 feed-forward, cycle-by-cycle current limiting and ease of loop compensation. The switching frequency is programmable up to 1MHz. Higher efficiency is achieved by two robust N-channel MOSFET gate drivers with adaptive dead-time control. 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 180° phase shifted clock output enables easy multi-phase interleaved configuration. Additional features include thermal shutdown, frequency synchronization, hiccup mode current limit and adjustable line undervoltage lockout.
- Peak current mode control
- Robust 3A 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
- Programmable slope compensation
- Programmable skip cycle mode reduces standby power
- Allows external VCC supply
- Inductor DCR current sensing capability
- Multiphase capability
- Green product and no Sb/Br
Applications
Automotive, Audio, Power Management
Warnings
Device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
Product Information
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- :
- 4.5V
- :
- 65V
- :
- 1 Output
- :
- 100%
- :
- HTSSOP
- :
- 20Pins
- :
- 875kHz
- :
- Synchronous Boost (Step Up)
- :
- -40°C
- :
- 125°C
- :
- -
- :
- AEC-Q100
- :
- MSL 1 - Unlimited
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Extra stock is available upon order to the Supplier Lead Time which is approximately 22/12/25
911 UK stock available for 5-8 business days delivery
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