Varnitronics
LM3478MAX/NOPB TI
TI

LM3478MAX/NOPB

1 Adjustable Boost SOIC-8 DC DC Switching Controllers RoHS

SOIC-8ROHS3 CompliantActive

High-Efficiency Low-Side N-Channel Controller

Manufacturer
TI
Manufacturer part #
LM3478MAX/NOPB
Store part #
C115907
Package / case
SOIC-8
Packaging
Tape & Reel (TR)
Datasheet (PDF)

Every Order Guarantee

100% Authentic · 30-Day Return or Replacement · policy

8,788 in stock

#C115907

Stock & price checked 6 days ago

QuantityUnit pricePack price
1+₹158.88₹158.88
10+₹131.07₹1,310.70
30+₹117.15₹3,514.50
100+₹103.25₹10,325.00
500+₹85.64₹42,820.00
1,000+₹81.30₹81,300.00

1 × ₹158.88

₹158.88

excl. GST

₹187.48 incl. 18% GST

Need volume or a scheduled delivery? Request a quote
  • Dispatch in 7–10 working days
  • GST invoice with every order
  • Standard pack: 2,500 per reel

LM3478MAX/NOPB

₹158.88 for 1 + GST

Specifications

Synchronous Rectifier
No
Features
Adjustable current limiting;Cycle-by-cycle current limiting;Overcurrent Protection;Built-in LDO regulator
Number of Channels
1
Topology
Boost;SEPIC;Flyback
Operating Voltage
2.97V~40V
Switch tube (built-in/external)
External
Operating Temperature
-40℃~+125℃@(TJ)
Frequency - Switching
1MHz
Output Type
Adjustable
Function
Boost
Quiescent Current
2.7mA

Packaging & compliance

RoHS
ROHS3 Compliant
Lifecycle
Active
ECCN
EAR99
Packaging
Tape & Reel (TR)
Standard pack
2,500 / Reel
Sold per
Piece
Minimum order
1
Unit weight
0.18 g

Overview

The LM3478 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 100 kHz and 1 MHz 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 LM3478 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 5 μA and allows power supply sequencing. Internal soft-start limits the inrush current at start-up.

Applications

  • Distributed Power Systems
  • Battery Chargers
  • Offline Power Supplies
  • Telecom Power Supplies
  • Automotive Power Systems

Key features

  • 8-lead VSSOP-8 and SOIC-8 packages
  • Internal Push-Pull Driver With 1-A Peak Current Capability
  • Current Limit and Thermal Shutdown
  • Frequency Compensation Optimized With a Capacitor and a Resistor
  • Internal Soft Start
  • Current Mode Operation
  • Undervoltage Lockout With Hysteresis
  • Create a Custom Design Using the LM3478 with the WEBENCH Power Designer

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