VIPER114HSTR STMicroelectronics Integrated Circuit (Small Outline Packages) In Stock
The VIPER114HSTR is an energy-saving off-line high-voltage PWM switching regulator from STMicroelectronics, operating from 4.5 V to 30 V input with current-mode control in a 10-lead SO package. Designed for flyback and forward converter topologies in standby power supplies. Available from stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Small Outline Packages
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- VIPER114HSTR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.2524(MOQ 100)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of VIPER114HSTR?
- Current-mode PWM control with 4.5 V to 30 V input range enables robust off-line power conversion with built-in overcurrent protection
- Energy-saving off-line topology reduces standby power consumption below regulatory limits in adapters and auxiliary power supplies
- 10-lead SOIC package with integrated high-voltage start-up simplifies external component count in compact flyback converter designs
What is VIPER114HSTR used for?
The VIPER114HSTR is targeted at energy-efficient off-line power supplies such as AC adapters, standby power sections in home appliances, and auxiliary converters in industrial equipment. Its current-mode PWM architecture supports flyback and forward converter designs where input voltages up to 30 V DC must be regulated to lower output rails with high efficiency. The integrated startup circuit and protection features reduce external component count, simplifying compliance with energy efficiency standards.
What are the specifications of VIPER114HSTR?
| YTEOL | 7 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 30V |
| Input Voltage-Min | 4.5V |
| Input Voltage-Nom | 9V |
| JESD-30 Code | R-PDSO-G10 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Voltage-Nom | 5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP10,.24,40 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Current-Max (Isup) | 1.8mA |
| Surface Mount | YES |
| Switcher Configuration | BUCK-BOOST |
| Switching Frequency-Max | 132kHz |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 1mm |
| Terminal Position | DUAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Mainland China |
Where can I find the VIPER114HSTR datasheet?
VIPER114HSTR Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for VIPER114HSTR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does VIPER114HSTR support and which AC mains rectification scenarios does it handle?
The VIPER114HSTR operates from 4.5 V to 30 V input, which covers rectified voltages from low-voltage DC bus rails and auxiliary windings in flyback converters. Its nominal 9 V input makes it well-suited for auxiliary supply stages where the main transformer provides a low-voltage winding to power the control IC while the high-voltage bulk capacitor supplies the primary switch.
How does current-mode control in VIPER114HSTR improve transient response in off-line power supplies?
Current-mode PWM control in the VIPER114HSTR senses inductor current cycle-by-cycle, allowing the regulator to immediately respond to load steps by adjusting pulse width within the same switching period. Compared to voltage-mode control, this reduces output voltage undershoot during load transients in flyback converters operating across the 4.5 V to 30 V input range, improving stability without complex external compensation networks.
For a compact adapter design, how many external components does VIPER114HSTR require compared to a discrete PWM controller solution?
The VIPER114HSTR integrates startup circuitry, current sensing, and oscillator components within its 10-pin SOIC package, typically reducing the external BOM to fewer than 10 passive components for a complete flyback converter stage. A discrete solution using a separate PWM controller, gate driver, and startup resistors would require 15 or more components occupying significantly more than the 6 mm x 4.9 mm SOIC footprint.
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Why Buy from FindMyChip
About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $1.6500 | $165.00 |
| 250+ | $1.5600 | $390.00 |
| 500+ | $1.5300 | $765.00 |
| 2500+ | $1.4382 | $3595.40 |
| 5000+ | $1.4092 | $7046.00 |
| 10000+ | $1.2524 | $12523.50 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
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