
LM5116 Wide Range Synchronous Buck Controller IC - HTSSOP-20 Package
LM5116 Wide Range Synchronous Buck Controller IC (HTSSOP-20) is a high-voltage synchronous buck controller from Texas Instruments designed for efficient DC-DC step-down power supplies operating from a wide input voltage range of 6V to 100V. It uses emulated peak current mode control for excellent line regulation, cycle-by-cycle current limiting, and easy loop compensation. The controller drives external high-side and low-side N-channel MOSFETs, making it suitable for high-power industrial, automotive, and telecom applications. It supports switching frequencies from 50kHz to 1MHz and integrates programmable soft-start, programmable current limit, thermal shutdown, and undervoltage lockout for reliable operation.
LM5116 Wide Range Synchronous Buck Controller IC Datasheet
Features
- Wide Input Voltage Range: 6V to 100V
- Emulated Peak Current Mode Control
- Synchronous Buck Controller
- Drives External High-side and Low-side N-Channel MOSFETs
- 3.5A Peak Gate Drive Capability
- Adjustable Output Voltage from 1.215V to 80V
- Programmable Switching Frequency (50kHz to 1MHz)
- Precision 1.215V Feedback Reference (±1.5%)
- Programmable Soft-Start
- Programmable Current Limit
- Programmable Line Undervoltage Lockout (UVLO)
- Optional Diode Emulation Mode for Improved Light Load Efficiency
- Automatic Switch to External Bias Supply (VCCX)
- Frequency Synchronization Capability
- Low Shutdown Current (<10µA)
- Thermal Shutdown Protection
- HTSSOP-20 Package with Exposed Thermal Pad
Specifications
| Parameter | Specification |
|---|---|
| Product Type | Wide Range Synchronous Buck Controller |
| Manufacturer | Texas Instruments |
| Part Number | LM5116 |
| Topology | Synchronous Buck Controller |
| Input Voltage Range | 6V to 100V |
| Maximum Input Voltage | 100V |
| Output Voltage | 1.215V to 80V (Programmable) |
| Feedback Reference Voltage | 1.215V ±1.5% |
| Switching Frequency | 50kHz to 1MHz |
| Typical Oscillator Frequency | 200kHz (RT = 16kΩ) |
| Gate Drive Peak Source Current | 1A (High Side), 1.8A (Low Side) |
| Gate Drive Peak Sink Current | 2.2A (High Side), 3.5A (Low Side) |
| Shutdown Current | Less than 10µA |
| VCC Regulation | 7.4V Typical |
| Soft Start | Programmable |
| Current Limit | Programmable, Cycle-by-Cycle |
| Enable Threshold | 3.3V (Typical) |
| UVLO Threshold | 1.215V Typical |
| Operating Junction Temperature | -40°C to +125°C |
| Thermal Shutdown | 170°C Typical |
| Package | HTSSOP-20 with Exposed Pad |
| Mounting Type | Surface Mount (SMD) |
Applications
- Automotive Infotainment Systems
- Automotive USB Chargers
- Industrial DC-DC Converters
- Industrial Motor Drivers
- Telecom Servers
- High Voltage Buck Power Supplies
- Battery Powered Equipment
- Distributed Power Systems
- Embedded Power Modules
- Industrial Automation Equipment
Also Check These IC:-
AN7112 Audio Power Amplifier IC
TDA2822M Amplifier IC
HT12D (RF Decoder) IC
Package Includes
1 × LM5116 Wide Range Synchronous Buck Controller IC (HTSSOP-20)
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LM5116 Wide Range Synchronous Buck Controller IC - HTSSOP-20 Package
LM5116 Wide Range Synchronous Buck Controller IC (HTSSOP-20) is a high-voltage synchronous buck controller from Texas Instruments designed for efficient DC-DC step-down power supplies operating from a wide input voltage range of 6V to 100V. It uses emulated peak current mode control for excellent line regulation, cycle-by-cycle current limiting, and easy loop compensation. The controller drives external high-side and low-side N-channel MOSFETs, making it suitable for high-power industrial, automotive, and telecom applications. It supports switching frequencies from 50kHz to 1MHz and integrates programmable soft-start, programmable current limit, thermal shutdown, and undervoltage lockout for reliable operation.
LM5116 Wide Range Synchronous Buck Controller IC Datasheet
Features
- Wide Input Voltage Range: 6V to 100V
- Emulated Peak Current Mode Control
- Synchronous Buck Controller
- Drives External High-side and Low-side N-Channel MOSFETs
- 3.5A Peak Gate Drive Capability
- Adjustable Output Voltage from 1.215V to 80V
- Programmable Switching Frequency (50kHz to 1MHz)
- Precision 1.215V Feedback Reference (±1.5%)
- Programmable Soft-Start
- Programmable Current Limit
- Programmable Line Undervoltage Lockout (UVLO)
- Optional Diode Emulation Mode for Improved Light Load Efficiency
- Automatic Switch to External Bias Supply (VCCX)
- Frequency Synchronization Capability
- Low Shutdown Current (<10µA)
- Thermal Shutdown Protection
- HTSSOP-20 Package with Exposed Thermal Pad
Specifications
| Parameter | Specification |
|---|---|
| Product Type | Wide Range Synchronous Buck Controller |
| Manufacturer | Texas Instruments |
| Part Number | LM5116 |
| Topology | Synchronous Buck Controller |
| Input Voltage Range | 6V to 100V |
| Maximum Input Voltage | 100V |
| Output Voltage | 1.215V to 80V (Programmable) |
| Feedback Reference Voltage | 1.215V ±1.5% |
| Switching Frequency | 50kHz to 1MHz |
| Typical Oscillator Frequency | 200kHz (RT = 16kΩ) |
| Gate Drive Peak Source Current | 1A (High Side), 1.8A (Low Side) |
| Gate Drive Peak Sink Current | 2.2A (High Side), 3.5A (Low Side) |
| Shutdown Current | Less than 10µA |
| VCC Regulation | 7.4V Typical |
| Soft Start | Programmable |
| Current Limit | Programmable, Cycle-by-Cycle |
| Enable Threshold | 3.3V (Typical) |
| UVLO Threshold | 1.215V Typical |
| Operating Junction Temperature | -40°C to +125°C |
| Thermal Shutdown | 170°C Typical |
| Package | HTSSOP-20 with Exposed Pad |
| Mounting Type | Surface Mount (SMD) |
Applications
- Automotive Infotainment Systems
- Automotive USB Chargers
- Industrial DC-DC Converters
- Industrial Motor Drivers
- Telecom Servers
- High Voltage Buck Power Supplies
- Battery Powered Equipment
- Distributed Power Systems
- Embedded Power Modules
- Industrial Automation Equipment
Also Check These IC:-
AN7112 Audio Power Amplifier IC
TDA2822M Amplifier IC
HT12D (RF Decoder) IC
Package Includes
1 × LM5116 Wide Range Synchronous Buck Controller IC (HTSSOP-20)
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
LM5116 Wide Range Synchronous Buck Controller IC (HTSSOP-20) is a high-voltage synchronous buck controller from Texas Instruments designed for efficient DC-DC step-down power supplies operating from a wide input voltage range of 6V to 100V. It uses emulated peak current mode control for excellent line regulation, cycle-by-cycle current limiting, and easy loop compensation. The controller drives external high-side and low-side N-channel MOSFETs, making it suitable for high-power industrial, automotive, and telecom applications. It supports switching frequencies from 50kHz to 1MHz and integrates programmable soft-start, programmable current limit, thermal shutdown, and undervoltage lockout for reliable operation.
LM5116 Wide Range Synchronous Buck Controller IC Datasheet
Features
- Wide Input Voltage Range: 6V to 100V
- Emulated Peak Current Mode Control
- Synchronous Buck Controller
- Drives External High-side and Low-side N-Channel MOSFETs
- 3.5A Peak Gate Drive Capability
- Adjustable Output Voltage from 1.215V to 80V
- Programmable Switching Frequency (50kHz to 1MHz)
- Precision 1.215V Feedback Reference (±1.5%)
- Programmable Soft-Start
- Programmable Current Limit
- Programmable Line Undervoltage Lockout (UVLO)
- Optional Diode Emulation Mode for Improved Light Load Efficiency
- Automatic Switch to External Bias Supply (VCCX)
- Frequency Synchronization Capability
- Low Shutdown Current (<10µA)
- Thermal Shutdown Protection
- HTSSOP-20 Package with Exposed Thermal Pad
Specifications
| Parameter | Specification |
|---|---|
| Product Type | Wide Range Synchronous Buck Controller |
| Manufacturer | Texas Instruments |
| Part Number | LM5116 |
| Topology | Synchronous Buck Controller |
| Input Voltage Range | 6V to 100V |
| Maximum Input Voltage | 100V |
| Output Voltage | 1.215V to 80V (Programmable) |
| Feedback Reference Voltage | 1.215V ±1.5% |
| Switching Frequency | 50kHz to 1MHz |
| Typical Oscillator Frequency | 200kHz (RT = 16kΩ) |
| Gate Drive Peak Source Current | 1A (High Side), 1.8A (Low Side) |
| Gate Drive Peak Sink Current | 2.2A (High Side), 3.5A (Low Side) |
| Shutdown Current | Less than 10µA |
| VCC Regulation | 7.4V Typical |
| Soft Start | Programmable |
| Current Limit | Programmable, Cycle-by-Cycle |
| Enable Threshold | 3.3V (Typical) |
| UVLO Threshold | 1.215V Typical |
| Operating Junction Temperature | -40°C to +125°C |
| Thermal Shutdown | 170°C Typical |
| Package | HTSSOP-20 with Exposed Pad |
| Mounting Type | Surface Mount (SMD) |
Applications
- Automotive Infotainment Systems
- Automotive USB Chargers
- Industrial DC-DC Converters
- Industrial Motor Drivers
- Telecom Servers
- High Voltage Buck Power Supplies
- Battery Powered Equipment
- Distributed Power Systems
- Embedded Power Modules
- Industrial Automation Equipment
Also Check These IC:-
AN7112 Audio Power Amplifier IC
TDA2822M Amplifier IC
HT12D (RF Decoder) IC
Package Includes
1 × LM5116 Wide Range Synchronous Buck Controller IC (HTSSOP-20)






















