LT8610
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LT8610

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

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 12
1ku List Price Starting From $4.25
Features
  • Wide Input Voltage Range: 3.4V to 42V
  • Ultralow Quiescent Current Burst Mode® Operation:
    • 2.5μA IQ Regulating 12VIN to 3.3VOUT
    • Output Ripple < 10mVP-P
  • High Efficiency Synchronous Operation:
    • 96% Efficiency at 1A, 5VOUT from 12VIN
    • 94% Efficiency at 1A, 3.3VOUT from 12VIN
  • Fast Minimum Switch-On Time: 50ns
  • Low Dropout Under All Conditions: 200mV at 1A
  • Allows Use Of Small Inductors
  • Low EMI
  • Adjustable and Synchronizable: 200kHz to 2.2MHz
  • Current Mode Operation
  • Accurate 1V Enable Pin Threshold
  • Internal Compensation
  • Output Soft-Start and Tracking
  • Small Thermally Enhanced 16-Lead MSOP Package
  • AEC-Q100 Qualified for Automotive Applications
Additional Details
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The LT8610 is a compact, high efficiency, high speed synchronous monolithic step-down switching regulator that consumes only 2.5μA of quiescent current. Top and bottom power switches are included with all necessary circuitry to minimize the need for external components. Low ripple Burst Mode operation enables high efficiency down to very low output currents while keeping the output ripple below 10mVP-P. A SYNC pin allows synchronization to an external clock. Internal compensation with peak current mode topology allows the use of small inductors and results in fast transient response and good loop stability. The EN/UV pin has an accurate 1V threshold and can be used to program VIN undervoltage lockout or to shut down the LT8610 reducing the input supply current to 1μA. A capacitor on the TR/SS pin programs the output voltage ramp rate during start-up. The PG flag signals when VOUT is within ±9% of the programmed output voltage as well as fault conditions. The LT8610 is available in a small 16-lead MSOP package with exposed pad for low thermal resistance.

Feedback Voltage Min VIN Output Current Notes
LT8610AC-1 0.80V 3.0V 3.5A Fsw = 1.5MHz to 2.2MHz, Optimized Transient Response
LT8610AC 0.80V 3.0V 3.5A Fsw = 200kHz to 2.2MHz
LT8610AB 0.97V 3.4V 3.5A Improved Burst Mode Efficiency
LT8610AX 0.97V 3.4V 3.5A 175°C Max Junction Temp
LT8610A 0.97V 3.4V 3.5A Higher Iout, 30ns Min On Time
LT8610 0.97V 3.4V 2.5A -

APPLICATIONS

  • Automotive and Industrial Supplies
  • General Purpose Step-Down
  • GSM Power Supplies
Part Models 12
1ku List Price Starting From $4.25

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Documentation

Documentation

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Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Product Lifecycle

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Feb 4, 2020

- 20_0132

Laser Top Mark for 16-Lead MSOP Packages Assembled in ADPG and UTAC

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Apr 11, 2019

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Notification of Wafer Fab Location Change for 0.35 BCD Process

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Jul 12, 2022

- 22_0157

UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages [With Modification in BOM]

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Jun 21, 2022

- 22_0050

UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices

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Filter by Model

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Feb 4, 2020

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Laser Top Mark for 16-Lead MSOP Packages Assembled in ADPG and UTAC

LT8610EMSE#PBF

PRODUCTION

LT8610EMSE#TRPBF

PRODUCTION

LT8610EMSE#WPBF

PRODUCTION

LT8610EMSE#WTRPBF

PRODUCTION

LT8610HMSE#PBF

PRODUCTION

LT8610HMSE#TRPBF

PRODUCTION

LT8610HMSE#WPBF

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LT8610HMSE#WTRPBF

PRODUCTION

LT8610IMSE#PBF

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LT8610IMSE#TRPBF

PRODUCTION

LT8610IMSE#WPBF

PRODUCTION

LT8610IMSE#WTRPBF

PRODUCTION

Apr 11, 2019

- 19_0067

arrow down

Notification of Wafer Fab Location Change for 0.35 BCD Process

LT8610EMSE#PBF

PRODUCTION

LT8610EMSE#TRPBF

PRODUCTION

LT8610HMSE#PBF

PRODUCTION

LT8610HMSE#TRPBF

PRODUCTION

LT8610IMSE#PBF

PRODUCTION

LT8610IMSE#TRPBF

PRODUCTION

Jul 12, 2022

- 22_0157

arrow down

UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages [With Modification in BOM]

LT8610HMSE#PBF

PRODUCTION

LT8610HMSE#TRPBF

PRODUCTION

LT8610HMSE#WPBF

PRODUCTION

LT8610HMSE#WTRPBF

PRODUCTION

LT8610IMSE#PBF

PRODUCTION

LT8610IMSE#TRPBF

PRODUCTION

Jun 21, 2022

- 22_0050

arrow down

UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices

LT8610HMSE#PBF

PRODUCTION

LT8610HMSE#TRPBF

PRODUCTION

LT8610IMSE#PBF

PRODUCTION

LT8610IMSE#TRPBF

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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DC1749B

LT8610 Demo Board | Synchronous Step-Down Converter: 3.4V to 42V Input, 5VOUT at 2.5A

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DC1749B

LT8610 Demo Board | Synchronous Step-Down Converter: 3.4V to 42V Input, 5VOUT at 2.5A

LT8610 Demo Board | Synchronous Step-Down Converter: 3.4V to 42V Input, 5VOUT at 2.5A

Product Detail

Demonstration circuit 1749B is a 42V, 2.5A micropower synchronous step-down regulator featuring the LT8610. The LT8610 is a compact, high efficiency, high speed synchronous monolithic step-down switching regulator that consumes only 2.5μA of quiescent current when output is regulated at 5V. Top and bottom power switches, compensation  components and other necessary circuits are inside of the LT8610 to minimize external components and simplify design.

Tools & Simulations

Tools & Simulations 2

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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