LTM4609

RECOMMENDED FOR NEW DESIGNS

36VIN, 34VOUT High Efficiency Buck-Boost DC/DC μModule (Power Module) Regulator

Data Sheet (Rev. G) Product Selection Table
Part Models
8
1ku List Price
Starting From $26.55
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Part Details

  • Single Inductor Architecture Allows VIN Above, Below or Equal to VOUT
  • Wide VIN Range: 4.5V to 36V
  • Wide VOUT Range: 0.8V to 34V
  • IOUT: 4A DC (10A DC in Buck Mode)
  • Up to 98% Efficiency
  • Current Mode Control
  • Power Good Output Signal
  • Phase-Lockable Fixed Frequency: 200kHz to 400kHz
  • Ultrafast Transient Response
  • Current Foldback Protection
  • Output Overvoltage Protection
  • Small Surface Mount Footprint, Low Profile
    (15mm × 15mm × 2.82mm) LGA and
    (15mm × 15mm × 3.42mm) BGA Packages
  • SnPb (BGA) or RoHS Compliant (LGA and BGA) Finish
LTM4609
36VIN, 34VOUT High Efficiency Buck-Boost DC/DC μModule (Power Module) Regulator
30V/2A Buck-Boost DC/DC μModule Regulator with 6.5V to 36V Input Product Package 1 Product Package 2 Efficiency and Power Loss vs Input Voltage
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Application Note 1

Technical Articles 3

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Hardware Ecosystem

Parts Product Life Cycle Description
Dual-Supply Monitors 1
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RECOMMENDED FOR NEW DESIGNS 36V Nano-Current Two-Input Voltage Monitor
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LTC4364
RECOMMENDED FOR NEW DESIGNS Surge Stopper with Ideal Diode
Silicon Oscillators 2
LTC6908
Resistor Set SOT-23 Oscillator with Spread Spectrum Modulation
LTC6909
PRODUCTION 1 to 8 Output, Multiphase Silicon Oscillator with Spread Spectrum Modulation
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Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

  • LTM4609

LTpowerCAD 2

LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

LTpowerCAD

LTpowerCAD® is a power supply design program which selects power stage components, provides detailed power efficiency, shows quick loop Bode plot stability and load transient analysis, and can export to LTspice for simulation.

Evaluation Kits

eval board
schematic 1
schematic 2
schematic 3
schematic 4
schematic 5
schematic 6
DC1477B

LTM4609EV Demo Board | 34VOUT, 4A Buck-Boost µModule Regulator

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Product Details

Demonstration circuit DC1477B features the LTM4609EV, the high voltage, high efficiency, high density switch mode buck-boost power module. The LTM4609EV regulates an output voltage above, below, or equal to the input voltage. DC1477B accepts an input voltage from 10V to 36V with a preset output voltage of 30V at up to 3A. Derating may be necessary for certain VIN, VOUT, and thermal conditions. An optional input π filter is added on the DC1477B to minimize the input ripple. The switching frequency may be synchronized to an external clock from 200kHz to 400kHz to reduce undesirable frequency harmonics and/or parallel multiple modules for even higher output current.
DC1477B
LTM4609EV Demo Board | 34VOUT, 4A Buck-Boost µModule Regulator
DC1477B Demo Board DC1477B Demo Board DC1477B Demo Board DC1477B Demo Board DC1477B Demo Board DC1477B - Schematic

Latest Discussions

4 Years Ago
RE: LTM4609 sudden death issues - any possible causes?
5 Years Ago
RE: How to use LTM4609 and DAC such as AD5696 to establish a Programmable Buck-Boost DC/DC?
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