VIPER25HN footprint, schematic symbol and 3D model by STMicroelectronics

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Part Number VIPER25HN
Manufacturer STMicroelectronics
Pin Count 16
Part Category Integrated Circuit
Package Category Small Outline Packages
Footprint Name Small Outline Packages - .SO16 package mechanical data
Released Date Apr 16, 2026
Last Modified Date Apr 16, 2026 11:43 AM UTC
Pinout / Pin List Click Here (Member Only)

VIPER25HN Details

Manufacturer Part Number:
VIPER25HN
Brand Name:
STMicroelectronics
Rohs Code:
Yes
Part Life Cycle Code:
Obsolete
Part Package Code:
DIP
Package Description:
DIP-8/7
Pin Count:
7
ECCN Code:
EAR99
HTS Code:
8542.39.00.60
Manufacturer:
STMicroelectronics
YTEOL:
0
Analog IC - Other Type:
SWITCHING REGULATOR
Control Mode:
CURRENT-MODE
Control Technique:
PULSE WIDTH MODULATION
Input Voltage-Max:
23.5 V
Input Voltage-Min:
8.5 V
Input Voltage-Nom:
14 V
JESD-30 Code:
R-PDIP-T7
JESD-609 Code:
e3
Length:
9.02 mm
Number of Functions:
1
Number of Terminals:
7
Operating Temperature-Max:
125 °C
Operating Temperature-Min:
-25 °C
Package Body Material:
PLASTIC/EPOXY
Package Code:
DIP
Package Equivalence Code:
DIP7/8,.3
Package Shape:
RECTANGULAR
Package Style:
IN-LINE
Qualification Status:
Not Qualified
Seated Height-Max:
5.33 mm
Supply Current-Max (Isup):
3.5 mA
Surface Mount:
NO
Switcher Configuration:
SINGLE
Switching Frequency-Max:
250 kHz
Terminal Finish:
MATTE TIN
Terminal Form:
THROUGH-HOLE
Terminal Pitch:
2.54 mm
Terminal Position:
DUAL
Width:
7.62 mm

VIPER25HN Frequently Asked Questions (FAQs)

STMicroelectronics provides a recommended PCB layout in the application note AN4571, which includes guidelines for component placement, thermal management, and routing to minimize electromagnetic interference (EMI) and ensure reliable operation.
The transformer selection depends on the input voltage, output voltage, and power rating of your design. STMicroelectronics provides a transformer selection guide in the application note AN4571, which includes a list of recommended transformers and their characteristics.
The VIPER25HN has a high power density, and thermal management is critical to ensure reliable operation. The device has an exposed pad for heat sinking, and STMicroelectronics recommends using a thermal interface material (TIM) and a heat sink to keep the junction temperature below 150°C.
To ensure EMC, follow the guidelines in the application note AN4571, which includes recommendations for component placement, routing, and shielding. Additionally, use a common-mode choke and a Y-capacitor to filter the input and output lines, and consider using a metal enclosure to reduce radiated emissions.
The VIPER25HN is a high-reliability device with a typical lifetime of 10-15 years, depending on the operating conditions. STMicroelectronics provides a reliability report and a failure-in-time (FIT) rate calculation in the datasheet, which can be used to estimate the device's reliability in your specific application.

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About STMicroelectronics

STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components. STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut

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