LT8705AHFE#TRPBF footprint, schematic symbol and 3D model by Analog Devices

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PCB Footprints

LT8705AHFE#TRPBF - Analog Devices PCB footprint - Other - Other - FE Package Package Variation: FE38 (31) 38-Lead Plastic TSSOP (4.4mm) (Reference LTC DWG #

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Part Number LT8705AHFE#TRPBF
Manufacturer Analog Devices
Pin Count 32
Part Category Integrated Circuit
Package Category Other
Footprint Name Other - FE Package Package Variation: FE38 (31) 38-Lead Plastic TSSOP (4.4mm) (Reference LTC DWG #
Released Date Jun 19, 2025
Last Modified Date Dec 4, 2025 1:04 AM UTC
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LT8705AHFE#TRPBF Details

Manufacturer Part Number:
LT8705AHFE#TRPBF
Brand Name:
Analog Devices Inc
Pbfree Code:
No
Rohs Code:
Yes
Part Life Cycle Code:
Active
Package Description:
TSSOP-38/31
Pin Count:
31
Manufacturer Package Code:
05-08-1865
Country Of Origin:
Thailand
ECCN Code:
EAR99
HTS Code:
8542.39.00.01
Manufacturer:
Analog Devices Inc
YTEOL:
9
Analog IC - Other Type:
SWITCHING CONTROLLER
Control Mode:
VOLTAGE-MODE
Control Technique:
BURST MODE
Input Voltage-Max:
80 V
Input Voltage-Min:
2.8 V
Input Voltage-Nom:
12 V
JESD-30 Code:
R-PDSO-G31
JESD-609 Code:
e3
Length:
9.7 mm
Moisture Sensitivity Level:
1
Number of Functions:
1
Number of Terminals:
31
Operating Temperature-Max:
150 °C
Operating Temperature-Min:
-40 °C
Output Voltage-Max:
80 V
Output Voltage-Min:
1.3 V
Package Body Material:
PLASTIC/EPOXY
Package Code:
HTSSOP
Package Equivalence Code:
TSSOP31/38,.25,20
Package Shape:
RECTANGULAR
Package Style:
SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel):
260
Seated Height-Max:
1.2 mm
Surface Mount:
YES
Switcher Configuration:
BUCK-BOOST
Switching Frequency-Max:
400 kHz
Technology:
BIPOLAR
Temperature Grade:
AUTOMOTIVE
Terminal Finish:
Matte Tin (Sn)
Terminal Form:
GULL WING
Terminal Pitch:
0.5 mm
Terminal Position:
DUAL
Time@Peak Reflow Temperature-Max (s):
30
Width:
4.4 mm

LT8705AHFE#TRPBF Frequently Asked Questions (FAQs)

A good PCB layout for the LT8705AHFE involves keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing the length of the traces between the IC and the capacitors. Additionally, it's recommended to use a separate analog and digital ground plane to reduce noise coupling.
To ensure stability, it's essential to follow the recommended component values and layout guidelines in the datasheet. Additionally, make sure to decouple the input and output with suitable capacitors, and use a compensation network if necessary. It's also recommended to simulate the design using a tool like LTspice to verify stability.
The LT8705AHFE is rated for operation from -40°C to 125°C, but the maximum ambient temperature range depends on the specific application and the thermal design of the system. It's essential to ensure that the junction temperature of the IC does not exceed 150°C to prevent damage or malfunction.
Yes, the LT8705AHFE is suitable for high-reliability and automotive applications. It's manufactured using a high-reliability process, and it's qualified to AEC-Q100 Grade 1, which means it can operate from -40°C to 125°C. However, it's essential to follow the recommended design and testing guidelines to ensure the required level of reliability.
To troubleshoot issues with the LT8705AHFE, start by verifying the input and output voltages, and checking for any signs of overheating or damage. Use an oscilloscope to check the waveforms and look for any signs of oscillation or instability. Also, check the layout and component values to ensure they match the recommended design. If the issue persists, consult the datasheet and application notes, or contact Analog Devices' technical support for further assistance.

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LT8705AHFE#TRPBF Overview

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About Analog Devices

Analog Devices Inc. is a global leader in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits and software solutions for the industrial, automotive, healthcare, communications industries. Analog Devices serves a diverse range of markets including industrial, automotive, healthcare, energy, aerospace, defense, and consumer electronics industries. Analog Devices’ product portfolio includes a wide range of ICs, modules, and subsystems.

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