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LT8390 Controller: Datasheet, CAD Models and Applications [Video&FAQ]

Author: Irene
Date: 13 Oct 2021
 52
Datasheet

Catalog

Description

CAD Models

Pin Configuration

Block Diagram

Features

Applications

Datasheet

Product Attributes

Manufacturer

Using Warning

FAQ

Description

The LT8390 is a synchronous 4-switch buck-boost DC/DC controller that regulates output voltage, input or output current from an input voltage above, below, or equal to the output voltage. The proprietary peak-buck/peak-boost current mode control scheme allows adjustable and synchronizable 150kHz to 650kHz fixed frequency operation, or internal ±15% triangle spread spectrum frequency modulation for low EMI. With a 4V to 60V input voltage range, 0V to 60V output voltage capability, and seamless low-noise transitions between operation regions, the LT8390 is ideal for voltage regulator, battery and supercapacitor charger applications in automotive, industrial, telecom, and even battery-powered systems.

 

The LT8390 provides input or output current monitor and power good flag. Fault protection is also provided to detect output short-circuit condition, during which the LT8390 retries, latches off, or keeps running.

 

CAD Models

LT8390-PCB-Symbol

 

Figure:  PCB Symbol

 

LT8390-Footprint

 

Figure:  Footprint

 

LT8390-3D-Model

 

Figure:  3D Model

 

Pin Configuration

LT8390-Pin-Configuration

 

Figure:  Pin Configuration

 

Block Diagram

LT8390-Block-Diagram

 

Figure:  Block Diagram

 

Features

  • 4-Switch Single Inductor Architecture Allows VIN Above, Below or Equal to VOUT
  • Synchronous Switching: Up to 98% Efficiency
  • Proprietary Peak-Buck Peak-Boost Current Mode
  • Wide VIN Range: 4V to 60V
  • ±1.5% Output Voltage Accuracy: 1V ≤ VOUT ≤ 60V
  • ±3% Input or Output Current Accuracy with Monitor
  • Spread Spectrum Frequency Modulation for Low EMI
  • High Side PMOS Load Switch Driver
  • Integrated Bootstrap Diodes
  • No Top MOSFET Refresh Noise in Buck or Boost
  • Adjustable and Synchronizable: 150kHz to 650kHz
  • VOUT Disconnected from VIN During Shutdown
  • Available in 28-Lead TSSOP with Exposed Pad and 28-Lead QFN (4mm × 5mm)

 

Applications

  • Automotive, Industrial, Telecom Systems
  • High Power Battery-Powered System

 

Datasheet

You can download the datasheet from the link given below:

LT8390-Datasheet

 

Product Attributes

Manufacturer: Analog Devices Inc.
Product Category: Switching Voltage Regulators
Mounting Style: SMD/SMT
Package / Case: TSSOP-28
Topology: Buck-Boost
Output Voltage: 0 V to 60 V
Output Current: 40 uA
Number of Outputs: 1 Output
Input Voltage MAX: 60 V
Input Voltage MIN: 4 V
Quiescent Current: 2.1 mA
Switching Frequency: 600 kHz to 2 MHz
Minimum Operating Temperature: - 40 ℃
Maximum Operating Temperature: + 125 ℃
Series: LT8390
Packaging: Tube
Input Voltage: 4 V to 60 V
Type: Synchronous Buck-Boost DC/DC Controller
Brand: Analog Devices
Shutdown: Shutdown
Load Regulation: 0.01
Product Type: Switching Voltage Regulators
Factory Pack Quantity: 50
Subcategory: PMIC - Power Management ICs
Supply Voltage - Min: 4 V

 

Manufacturer

Analog Devices, Inc. (ADI), also known simply as Analog, is an American multinational semiconductor company specializing in data conversion, signal processing and power management technology, headquartered in Wilmington, Massachusetts. In 2012, Analog Devices led the worldwide data converter market with a 48.5% share, according to analyst firm Databeans.

 

Using Warning

Note: Please check their parameters and pin configuration before replacing them in your circuit.

 

FAQ

What kind of DC controller does the lt8390 have?

The LT8390 is a synchronous 4-switch buck-boost DC/DC controller that regulates output voltage, input or output current from an input voltage above, below, or equal to the output voltage.

 

What kind of applications can the lt8390 be used for?

The LT8390 is ideal for voltage regulator, battery, and supercapacitor charger applications in automotive, industrial, telecom, and even battery-powered systems.

 

What is the maximum current of the lt8390?

Demonstration circuit 2825A is a 4-switch synchronous buck-boost regulator that demonstrates the medium power capability of the LT8390. The output is 12V and the maximum output current is 10A for up to 120W power delivery. The switching frequency is 300kHz and efficiency can exceed 96%.

 

Ordering & Quality

Photo Mfr. Part # Company Description Package PDF Qty Pricing
(USD)
LT8390EUFD-WPBF LT8390EUFD-WPBF Company:Analog Devices Inc. Remark:Buck-Boost Regulator Positive Output Step-Up/Step-Down - DC-DC Controller IC 28-QFN (4x5) Package:28-WFQFN Exposed Pad
DataSheet
In Stock:On Order
Inquiry
Price:
1+: $11.86000
10+: $10.71100
25+: $10.21320
100+: $8.86800
250+: $8.46940
500+: $7.72210
1000+: $7.05000
Inquiry
LT8390EUFD-WTRPBF LT8390EUFD-WTRPBF Company:Analog Devices Inc. Remark:Buck-Boost Regulator Positive Output Step-Up/Step-Down - DC-DC Controller IC 28-QFN (4x5) Package:28-WFQFN Exposed Pad
DataSheet
In Stock:On Order
Inquiry
Price:
2500+: $7.05000
Inquiry

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