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LM3478MMX/NOPB +BOM

2.97~40V Wide Input Range Boost/SEPIC/Flyback DC-DC Controller

LM3478MMX/NOPB General Description

In addition, the LM3478 features a power-saving shutdown mode that reduces the total supply current to just 5µA, allowing for efficient power supply sequencing. The internal soft-start function helps limit inrush current during start-up, ensuring smooth operation

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

Specifications

Topology Boost, Flyback, Forward, SEPIC Vin (min) (V) 2.97
Vin (max) (V) 40 Vout (min) (V) 1.26
Vout (max) (V) 500 Regulated outputs (#) 1
Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 1000
Iq (typ) (mA) 2.7 Features Adjustable current limit, Enable, Frequency synchronization, Light Load Efficiency, Nonsynchronous rectification, Pre-Bias Start-Up
Duty cycle (max) (%) 100 Rating Catalog
Operating temperature range (°C) -40 to 125 Type Controller

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In Stock: 5,000

Minimum Order: 1

Qty. Unit Price Ext. Price
1+ $1.160 $1.16
10+ $0.988 $9.88
30+ $0.893 $26.79
100+ $0.719 $71.90
500+ $0.671 $335.50
1000+ $0.649 $649.00

The prices below are for reference only.