LT8606
LT8606B

RECOMMENDED FOR NEW DESIGNS

42V, 350mA Synchronous Step-Down Regulator with 2.5μA Quiescent Current

Data Sheet (Rev. D) Product Selection Table
Part Models
34
1ku List Price
Starting From $1.41
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Part Details

  • Wide Input Voltage Range: 3.0V to 42V
  • Ultralow Quiescent Current Burst Mode® Operation:
    • <3μA IQ Regulating 12VIN to 3.3VOUT
    • Output Ripple <10mVP-P
  • High Efficiency 2MHz Synchronous Operation:
    • >92% Efficiency at 0.35A, 12VIN to 5VOUT
  • 350mA Maximum Continuous Output
  • Fast Minimum Switch-On Time: 35ns
  • Adjustable and Synchronizable: 200kHz to 2.2MHz
  • Spread Spectrum Frequency Modulation for Low EMI
  • Allows Use of Small Inductors
  • Low Dropout
  • Peak Current Mode Operation
  • Accurate 1V Enable Pin Threshold
  • Internal Compensation
  • Output Soft-Start and Tracking
  • Small Thermally Enhanced 10-Lead MSOP Package or 8-Pin 2mm × 2mm DFN Package
  • AEC-Q100 Qualified for Automotive Applications
LT8606
LT8606B
42V, 350mA Synchronous Step-Down Regulator with 2.5μA Quiescent Current
LT8606/LT8606B Application Circuit LT8606-8606B-pg LT8606/LT8606B Pin Configuration LT8606/LT8606B Pin Configuration
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Design Note 1

Technical Articles 2

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Hardware Ecosystem

Parts Product Life Cycle Description
High Voltage Hot Swap Controllers 1
LTC4380
RECOMMENDED FOR NEW DESIGNS Low Quiescent Current Surge Stopper
Low Voltage Hot Swap Controllers 1
LTC4231
RECOMMENDED FOR NEW DESIGNS Micropower Hot Swap Controller
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Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

  • LT8606

LTpowerCAD 1

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
DC2564A

LT8606EMSE Demo Board │ Synchronous Buck, 5.5V ≤ VIN ≤ 42V; VOUT = 5V @ 350mA, fSW = 2MHz

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Product Details

Demonstration Circuit 2564A is a 42V, 0.35A micropower synchronous step-down regulator featuring the LT8606. The demo board is designed for 5V output from a 5.5V to 42V input. The wide input range allows a variety of input sources, such as automotive batteries and industrial supplies. The LT8606 is a compact, high efficiency, high speed synchronous monolithic step-down switching regulator that consumes less than 3μA of quiescent current when output is regulated at 5V. Top and bottom power switches, compensation components and other necessary circuits are inside of the LT8606 to minimize external components and simplify design.
DC2564A
LT8606EMSE Demo Board │ Synchronous Buck, 5.5V ≤ VIN ≤ 42V; VOUT = 5V @ 350mA, fSW = 2MHz
DC2564A

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