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LM3000 Datasheet Dual Synchronous Emulated Current-mode Controller

Manufacturer: Texas Instruments

Overview: LM3000 www.ti.com SNVS612B – JULY 2009 – REVISED APRIL 2013 LM3000 Dual Synchronous Emulated Current-Mode Controller Check for Samples:.

General Description

The LM3000 is a dual output synchronous buck controller which is designed to convert input voltages ranging from 3.3V to 18.5V down to output voltages as low as 0.6V.

The two outputs switch at a constant programmable frequency of 200 kHz to 1.5 MHz, with the second output 180 degrees out of phase from the first to minimize the input filter requirements.

The switching frequency can also be phase locked to an external frequency.

Key Features

  • 1.
  • 2 VIN Range FROM 3.3V to 18.5V.
  • Output Voltage From 0.6V to 80% of VIN.
  • Remote Differential Output Voltage Sensing.
  • 1% Accuracy at FB Pin.
  • Interleaved Operation Reduces Input Capacitors.
  • Frequency Sync/Adjust From 200 kHz to 1.5 MHz.
  • Startup With Pre-Bias Load.
  • Independent Power Good, Enable, Soft-Start and Track.
  • Programmable Current Limit Without External Sense Resistor.
  • Hiccup Mode Short Circuit Protec.

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