LTC3788-1
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LTC3788-1

2-Phase, Dual Output Synchronous Boost Controller

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LTspice LTC3788-1 - Step-Up (Boost) Regulators Download 5.21 KB LTspice LTC3788-1/LTC4440-5 Demo Circuit - Two-Stage High Voltage Boost Converter (3-36V to 140V @ 1A) Download 7.00KB LTspice LTC3788-1 Demo Circuit - High Efficiency Dual Boost Regulator with Independent Inputs (12-24V to 24V @ 5A & 5-12V to 12V @ 10A) Download 7.00KB LTspice LTC3788-1 Demo Circuit - High Efficiency Dual 12V/24V Boost Converter with Rsense Current Sensing (4.5-24V to 24V @ 5A & 12V @ 10A) Download 7.00KB
Part Models 4
1ku List Price Starting From $4.23
Features
  • Synchronous Operation for Highest Efficiency and Reduced Heat Dissipation
  • Wide Input Range: 4.5V to 38V (40V Abs Max) and Operates Down to 2.5V After Start-Up
  • Output Voltages Up to 60V
  • ±1% 1.2V Reference Voltage
  • RSENSE or Inductor DCR Current Sensing
  • 100% Duty Cycle Capability for Synchronous MOSFET
  • Low Quiescent Current: 125μA
  • Phase-Lockable Frequency (75kHz to 850kHz)
  • Programmable Fixed Frequency (50kHz to 900kHz)
  • Adjustable Output Voltage Soft-Start
  • Power Good Output Voltage Monitor
  • Low Shutdown Current IQ: <8μA
  • Internal LDO Powers Gate Drive from VBIAS or EXTVCC
  • Available in a Narrow SSOP Package
Additional Details
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The LTC3788-1 is a high performance 2-phase dual synchronous boost converter controller that drives all N-channel power MOSFETs. Synchronous rectification increases efficiency, reduces power losses and eases thermal requirements, allowing the LTC3788-1 to be used in high power boost applications.

A constant-frequency current mode architecture allows a phase-lockable frequency of up to 850kHz. OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The LTC3788-1 features a precision 1.2V reference and a power good output indicator. A 4.5V to 38V input supply range encompasses a wide range of system architectures and battery chemistries.

Independent SS pins for each controller ramp the output voltages during start-up. The PLLIN/MODE pin selects among Burst Mode operation, pulse-skipping mode or continuous inductor current mode at light loads.

For a leadless 32-pin QFN package with additional features of adjustable current limit, clock out, phase modulation and two PGOOD outputs, see the LTC3788 data sheet.

CLKOUT/PHASMD Adjustable Current Sense Power Good Package
LTC3788 Yes Yes 2 5 × 5 QFN-32
LTC3788-1 No No 1 SSOP-28

Applications

  • Industrial
  • Automotive
  • Medical
  • Military
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file View Data Sheet (Rev.D)
Documentation View All Documentation
LTspice LTC3788-1 - Step-Up (Boost) Regulators Download 5.21 KB LTspice LTC3788-1/LTC4440-5 Demo Circuit - Two-Stage High Voltage Boost Converter (3-36V to 140V @ 1A) Download 7.00KB LTspice LTC3788-1 Demo Circuit - High Efficiency Dual Boost Regulator with Independent Inputs (12-24V to 24V @ 5A & 5-12V to 12V @ 10A) Download 7.00KB LTspice LTC3788-1 Demo Circuit - High Efficiency Dual 12V/24V Boost Converter with Rsense Current Sensing (4.5-24V to 24V @ 5A & 12V @ 10A) Download 7.00KB
Part Models 4
1ku List Price Starting From $4.23
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LTC3788-1

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Data Sheet

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UPDATED 01/09/2012
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LTC3788-1: 2-Phase, Dual Output Synchronous Boost Controller Data Sheet (Rev.D)

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UPDATED 03/28/2012
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LTC3788-1: 2フェーズ、デュアル出力同期整流式昇圧コントローラ データシート

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UPDATED 03/26/2018
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2017-09-18

Synchronous PolyPhase Boost Converter for Cool and Powerful Applications

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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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LTC3788IGN-1#PBF 28-Lead SSOP (Narrow 0.15 Inch) external-link
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Notification of Wafer Fab Location Change for 0.6µm BICMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan)

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Laser Top Mark Conversion for QSOP20_24_28 Assembled in ADPG [PNG] and UTL

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LTC3788IGN-1#PBF

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PCN22_0177_Form

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Material_Report

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Delta Qualification Matrix

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Jul 31, 2020

- 20_0245

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Notification of Wafer Fab Location Change for 0.6µm BICMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan)

LTC3788EGN-1#PBF

PRODUCTION

LTC3788EGN-1#TRPBF

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LTC3788IGN-1#PBF

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LTC3788IGN-1#TRPBF

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pdf

PCN20_0245_Form

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xls

Material_Report

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Delta Qualification Matrix

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Software & Part Ecosystem

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.

spice tool Lt Spice

LTC3788-1 - Step-Up (Boost) Regulators Download

5.21 K

spice tool Lt Spice

LTC3788-1/LTC4440-5 Demo Circuit - Two-Stage High Voltage Boost Converter (3-36V to 140V @ 1A) Download

7.00K

spice tool Lt Spice

LTC3788-1 Demo Circuit - High Efficiency Dual Boost Regulator with Independent Inputs (12-24V to 24V @ 5A & 5-12V to 12V @ 10A) Download

7.00K

spice tool Lt Spice

LTC3788-1 Demo Circuit - High Efficiency Dual 12V/24V Boost Converter with Rsense Current Sensing (4.5-24V to 24V @ 5A & 12V @ 10A) Download

7.00K

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