LM3478MMX

LM3478MMX, High Efficiency Low-Side N-Channel Controller, MSOP, 45V, 1A, National Semiconductor

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Price:: US $4.50~5.00 / piece [Get Latest Price]

Reference price:

Qty (lots)	Price/lot
1 ~ 300 :	5.00 / Piece
301 ~ 600 :	4.80 / Piece
601 ~ 1000 :	4.50 / Piece

PartNumber:: LM3478MMX

Brand:: National Semiconductor - NS | Pack: MSOP | D/C: 11+

Availability:: Supply Ability: 1000/Day Can Ship Immediately
Delivery: 10-15 Business Days (ships out within 3 Business days)

Quantity:: piece

Total Price:: US $0

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Products Upload time: 2013-04-22

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Part Number:LM3478MMX
US $4.50 - 5.00
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Product Summary

The LM3478MMX is a versatile Low-Side N-FET switching regulator controller. It is suitable for use in topologies requiring low side FET, such as boost, flyback, SEPIC, etc. Moreover, the LM3478MMX can be operated at extremely high switching frequency in order to reduce the overall solution size. The switching frequency of the LM3478MMX 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. The applications of the LM3478MMX include Distributed Power Systems, Battery Chargers, Offline Power Supplies, Telecom Power Supplies, Automotive Power Systems.

Parametrics

LM3478MMX absolute maximum ratings: (1)Input Voltage: 45V; (2)FB Pin Voltage: -0.4V < VFB < 7V; (3)FA/SD Pin Voltage: -0.4V < VFA/SD <7V; (4)Peak Driver Output Current (<10μs): 1.0A; (5)Power Dissipation: Internally Limited; (6)Storage Temperature Range: -65℃ to +150℃; (7)Junction Temperature: +150℃; (8)ESD Susceptibilty, Human Body Model (Note 2): 2kV.

Features

LM3478MMX features: (1)8-lead Mini-SO8 (MSOP-8) package; (2)Internal push-pull driver with 1A peak current capability; (3)Current limit and thermal shutdown; (4)Frequency compensation optimized with a capacitor and a resistor; (5)Internal softstart; (6)Current Mode Operation; (7)Undervoltage Lockout with hysteresis.