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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - DC DC Switching RegulatorsLT3688IUF#PBF
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LT3688IUF#PBF - Linear Technology

Manufacturer Part Number
LT3688IUF#PBF
Manufacturer
Linear Technology
Allelco Part Number
32D-LT3688IUF#PBF
ECAD Model
Parts Description
DUAL 800MA STEP-DOWN SWITCHING R
Detailed Description
Package
24-WFQFN Exposed Pad
Data sheet
LT3688IUF#PBF.pdf
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In stock: 16440

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Specifications

LT3688IUF#PBF Tech Specifications
Linear Technology - LT3688IUF#PBF technical specifications, attributes, parameters and parts with similar specifications to Linear Technology - LT3688IUF#PBF

Product Attribute Attribute Value  
Manufacturer Linear Technology  
Voltage - Output (Min/Fixed) 0.8V  
Voltage - Output (Max) 36V  
Voltage - Input (Min) 3.8V  
Voltage - Input (Max) 36V  
Topology Buck  
Synchronous Rectifier No  
Supplier Device Package 24-QFN (4x4)  
Series -  
Package / Case 24-WFQFN Exposed Pad  
Product Attribute Attribute Value  
Package Bulk  
Output Type Adjustable  
Output Configuration Positive  
Operating Temperature -40°C ~ 125°C (TJ)  
Number of Outputs 2  
Mounting Type Surface Mount  
Function Step-Down  
Frequency - Switching 500kHz ~ 2.1MHz  
Current - Output 800mA  

Parts Introduction

Manufacturer Part Number

LT3688IUF#PBF

Manufacturer

Analog Devices

Introduction

The LT3688 is a DC-DC switching regulator designed for power management applications.

Product Features and Performance

Step-Down (Buck) Regulator with Adjustable Output

Dual Output Channels

Wide Input Voltage Range: 3.8V to 36V

Adjustable Output Voltage Range: 0.8V to 36V

Maximum Output Current: 800mA

Adjustable Switching Frequency: 500kHz to 2.1MHz

Thermal Shutdown and Overcurrent Protection

Product Advantages

High Efficiency at Various Loads

Stable with Ceramic Capacitors

Robust Thermal Performance due to Exposed Pad Package

Key Technical Parameters

Input Voltage: Min 3.8V, Max 36V

Output Voltage: Min 0.8V, Max 36V

Output Current: up to 800mA

Switching Frequency: 500kHz to 2.1MHz

Quality and Safety Features

Overcurrent Protection

Thermal Shutdown Circuitry

Wide Operating Temperature Range: -40°C to 125°C

Compatibility

Surface Mount 24-QFN (4x4) Package

Can be Used with a Variety of Inductors and Capacitors

Application Areas

Automotive Systems

Industrial Power Supplies

Telecommunications Equipment

Product Lifecycle

Active Status

Continued Manufacturer Support

Several Key Reasons to Choose This Product

Versatile Input Voltage Range Suitable for Various Applications

Flexible Design Options with Adjustable Switching Frequency

Proven Manufacturer with a Reputation for Reliability

Thermal and Overcurrent Protections Increase System Safety

Exposed Pad for Enhanced Thermal Dissipation

Dual Outputs for Multi-Point Regulation

Parts with Similar Specifications

The three parts on the right have similar specifications to Linear Technology LT3688IUF#PBF

Product Attribute LT3688IUF#PBF LT3688EUF#PBF LT3688IUF#PBF LT3688EFE#PBF
Part Number LT3688IUF#PBF LT3688EUF#PBF LT3688IUF#PBF LT3688EFE#PBF
Manufacturer Linear Technology Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Package Bulk Tube Tube Tube
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Supplier Device Package 24-QFN (4x4) 24-QFN (4x4) 24-QFN (4x4) 24-TSSOP
Voltage - Input (Max) 36V 36V 36V 36V
Operating Temperature -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ)
Number of Outputs 2 2 2 2
Synchronous Rectifier No No No No
Voltage - Input (Min) 3.8V 3.8V 3.8V 3.8V
Voltage - Output (Max) 36V 36V 36V 36V
Voltage - Output (Min/Fixed) 0.8V 0.8V 0.8V 0.8V
Current - Output 800mA 800mA 800mA 800mA
Output Type Adjustable Adjustable Adjustable Adjustable
Frequency - Switching 500kHz ~ 2.1MHz 500kHz ~ 2.1MHz 500kHz ~ 2.1MHz 500kHz ~ 2.1MHz
Series - - - -
Output Configuration Positive Positive Positive Positive
Package / Case 24-WFQFN Exposed Pad 24-WFQFN Exposed Pad 24-WFQFN Exposed Pad 24-TSSOP (0.173', 4.40mm Width) Exposed Pad
Topology Buck Buck Buck Buck
Function Step-Down Step-Down Step-Down Step-Down

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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LT3688IUF#PBF Image

LT3688IUF#PBF

Linear Technology
32D-LT3688IUF#PBF

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