LT8630
Info : RECOMMENDED FOR NEW DESIGNS
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LT8630

100V, 0.6A Synchronous Micropower Step-Down High Efficiency Switching Regulator

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 4
1ku List Price Starting From $4.31
Features
  • Ultrawide Input Voltage Range: 3V to 100V
  • Boundary Mode Switching for Highest Efficiency
  • Output Voltage Range: 0.8V to 60V
  • Internal Synchronous Switches
  • Burst Mode® Operation:
    • 16μA IQ at 12VIN to 5VOUT
    • 7μA IQ at 48VIN to 5VOUT
  • Low Dropout: 99% Maximum Duty Cycle
  • Peak Current Mode Control
  • Programmable Undervoltage Lockout
  • Power Good Flag
  • Flexible Output Voltage Tracking
  • Short-Circuit Protection
  • Low Shutdown Current: 5μA
  • Tolerates Pin Open/Short Faults
  • Thermally Enhanced 20-Lead TSSOP with High Voltage Lead Spacing
Additional Details
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The LT8630 is a current mode PWM step-down DC/DC converter with internal synchronous switches that provide current for output loads up to 0.6A. The wide input range of 3V to 100V makes the LT8630 suitable for regulating power from a wide variety of sources, including automotive and industrial systems and 36V to 72V telecom supplies. Variable frequency boundary mode switching maximizes efficiency across a wide range of input voltages. Low ripple Burst Mode operation enables high efficiency operation down to very low output currents while keeping the output ripple below 5mV. The soft-start feature controls the ramp rate of the output voltage, eliminating input current surge during start-up, while also providing output tracking. A power good flag signals when the output voltage is within ±7.5% of the regulated output. Undervoltage lockout can be programmed using the EN/UV pin. Shutdown mode reduces the total quiescent current to < 5μA. The LT8630 is available in a 20-lead TSSOP package with exposed pad for low thermal resistance and high voltage lead spacing.

APPLICATIONS

  • Telecom Supplies
  • Distributed Supply Regulation
Part Models 4
1ku List Price Starting From $4.31

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LT8630EFE#PBF
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LT8630EFE#TRPBF
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LT8630IFE#PBF
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LT8630IFE#TRPBF
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Product Lifecycle

PCN

Apr 6, 2022

- 22_0068

Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL

LT8630EFE#PBF

PRODUCTION

LT8630EFE#TRPBF

PRODUCTION

LT8630IFE#PBF

PRODUCTION

LT8630IFE#TRPBF

PRODUCTION

Filter by Model

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Part Models

Product Lifecycle

PCN

Apr 6, 2022

- 22_0068

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Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL

LT8630EFE#PBF

PRODUCTION

LT8630EFE#TRPBF

PRODUCTION

LT8630IFE#PBF

PRODUCTION

LT8630IFE#TRPBF

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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DC2504A

LT8630 Demo Board | Synchronous Buck, 13V ≤ VIN ≤ 100V, VOUT = 12V @ 600mA

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DC2504A

LT8630 Demo Board | Synchronous Buck, 13V ≤ VIN ≤ 100V, VOUT = 12V @ 600mA

LT8630 Demo Board | Synchronous Buck, 13V ≤ VIN ≤ 100V, VOUT = 12V @ 600mA

Product Detail

Demonstration circuit 2504A is a step-down converter featuring LT8630. The LT8630 is a monolithic, variable frequency, current mode synchronous step-down switching regulator. The demo board is designed for 12V output from a 13V to 100V input. The wide input range makes it suitable for regulating power from a variety of sources, including automotive, industrial systems and telecom supplies. The power switch, compensation and other necessary circuits are inside of the LT8630 to minimize external components and simplify design.

Tools & Simulations

Tools & Simulations 1

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.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

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