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LM5116MHX
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Category:Microcontrollers
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Product Name:Wide range of synchronous buck controllers
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Manufacturers:NSC
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Production Batch Number:09+
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Encapsulation:TSSOP
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Stock Status:There is stock
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Stock Quantity:6850
- Minimum order quantity: 1
- Details:
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peculiarity
- Simulate peak current mode
- Wide operating range up to 100V
- Off lowIQ(
- Standard or logic level MOSFETs for the driver
- Robex 3.5A peak gate drive
- Free operation or synchronous operation up to 1MHz
- Selectable diode emulation mode
- Programmable outputs from 1.215V to 80V
- Precision voltage reference 1.5%
- Programmable current limit
- Programmable soft-start
- Programmable line undervoltage lockout
- Automatic switching to an external bias supply
- TSSOP - 20EP Bare Pad
- Thermal shutdown
illustrate
The LM5116 is a synchronous buck controller from high voltage buck regulator applications or a wide range of input power sources. The control method is based on the current mode using an analog current ramp. Current mode control provides line-intrinsic feed-forward, compensated by periodic current limiting and loops that are easy to cycle. A simulated control ramp uses noise-reducing pulse-width modulation circuitry for sensitivity, allowing very small duty cycles necessary for reliable control in high input voltage applications. Programmable operating frequency from 50kHz to 1MHz. The LM5116 driver has external high-side and low-side NMOS with adaptive dead-time control power switches. User-selectable diode emulation modes improve efficiency in light load continuous operation. Low quiescent current shutdown disables the controller and consumes less than 10μA of total input current. Other features include a high voltage bias regulator, automatic external bias transfer switch for efficiency, thermal shutdown, frequency synchronization, periodic current limiting, and regulation of line undervoltage lockout periods. The device is available in a power supply enhanced TSSOP-20 package with an exposed pad connection chip to help dissipate heat.
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