LTC3788-1

PRODUCTION

2-Phase, Dual Output Synchronous Boost Controller

Data Sheet (Rev. D) Product Selection Table

Part Models: 4
1ku List Price: Starting From $4.23

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Part Details

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
R_SENSE 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 I_Q: <8μA
Internal LDO Powers Gate Drive from VBIAS or EXTV_CC
Available in a Narrow SSOP Package

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

Part Models: 4
1ku List Price: Starting From $4.23

Documentation

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
LTC3788EGN-1#PBF	28-Lead SSOP (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3788EGN-1#TRPBF	28-Lead SSOP (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3788IGN-1#PBF	28-Lead SSOP (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3788IGN-1#TRPBF	28-Lead SSOP (Narrow 0.15 Inch)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Oct 3, 2024 - 24_0235 (QSOP/SSOP PKG) Migrating Bottom Trace Code Marking to Top Side Laser Marking
		PCN24_0235_Form Material_Report Other Delta Qualification Matrix
LTC3788EGN-1#PBF	PRODUCTION
LTC3788EGN-1#TRPBF	PRODUCTION
LTC3788IGN-1#PBF	PRODUCTION
LTC3788IGN-1#TRPBF	PRODUCTION
Aug 10, 2022 - 22_0177 Laser Top Mark Conversion for QSOP20_24_28 Assembled in ADPG [PNG] and UTL
		PCN22_0177_Form Material_Report Delta Qualification Matrix
LTC3788EGN-1#PBF	PRODUCTION
LTC3788EGN-1#TRPBF	PRODUCTION
LTC3788IGN-1#PBF	PRODUCTION
LTC3788IGN-1#TRPBF	PRODUCTION
Jul 31, 2020 - 20_0245 Notification of Wafer Fab Location Change for 0.6µm BICMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan)
		PCN20_0245_Form Material_Report Delta Qualification Matrix Other Qualification Results Summary
LTC3788EGN-1#PBF	PRODUCTION
LTC3788EGN-1#TRPBF	PRODUCTION
LTC3788IGN-1#PBF	PRODUCTION
LTC3788IGN-1#TRPBF	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Tools & Simulations

LTspice 4

Models for the following parts are available in LTspice:

LTC3788
LTC3788-1

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.

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LTC3788-1

Part Details

Documentation

Data Sheet 1

Reliability Data 1

Technical Articles 3

Video 1

Tools & Simulations

LTspice 4

Models for the following parts are available in LTspice:

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