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TEXAS INSTRUMENTS LM3478MM/NOPB
MOSFET Controller Low Side, N-Channel, 2.97V-40V supply, 1A peak out, VSSOP-8
- Manufacturer:
- TEXAS INSTRUMENTS TEXAS INSTRUMENTS
- Manufacturer Part No:
- LM3478MM/NOPB
- Order Code:
- 3118816
-
- ECAD / MCAD
-
Product Overview
The LM3478MM/NOPB is a versatile Low-side N-channel MOSFET Controller for switching regulators. It is suitable for use in topologies requiring a low side MOSFET, such as boost, flyback, SEPIC, etc. Moreover, the LM3478 can be operated at extremely high switching frequency in order to reduce the overall solution size. The switching frequency of the LM3478 can be adjusted to any value between 100kHz and 1MHz by using a single external resistor. Current mode control provides superior bandwidth and transient response, besides cycle-by-cycle current limiting. Output current can be programmed with a single external resistor. It has built in features such as thermal shutdown, short-circuit protection, over voltage protection, etc. Power saving shutdown mode reduces the total supply current to 5µA and allows power supply sequencing. Internal soft-start limits the inrush current at start-up.
- Internal push-pull driver with 1A peak current capability
- Current limit and thermal shutdown
- Frequency compensation optimized with a capacitor and a resistor
- Internal soft-start
- Current mode operation under-voltage lockout with hysteresis
- 100kHz to 1MHz Adjustable clock frequency
- ±2.5% (over-temperature) Internal reference
- 10μA Shutdown current (over-temperature)
- Green product and no Sb/Br
Applications
Power Management, Communications & Networking, Automotive
Product Information
Technical Documents (1)
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Rs.237.96
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