LM5116MHX/NOPB
DC DC Switching Controllers
Technical Specifications
| Type | Description |
|---|---|
| Output Type | Adjustable |
| Output Voltage | 40.608 V |
| Function | Step-down type |
| Working Voltage V | 53 V |
| Switching Freq Hz | 367.5 kHz |
| Channels | 1 |
| Iq A | 0.005 A |
| Type | Description |
|---|---|
| Synchronous Rectifier | Yes |
| Switch tube (built-in/external) | External |
| Operating Temp | -40°C ~ +125°C @(TJ) |
| Features | - |
| Output Current | - |
| Topology | Buck |
| Package / Case | HTSSOP-20-EP |
Product Introduction
The LM5116 is a synchronous buck controller intended for step-down regulator applications from a high-voltage or widely varying input supply. The control method is based upon current mode control utilizing an emulated current ramp. Current mode control provides inherent line feed-forward, cycle-bycycle current limiting, and ease-of-loop compensation. The use of an emulated control ramp reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of very small duty cycles necessary in high-input voltage applications.
The operating frequency is programmable from 50 kHz to 1 MHz. The LM5116 drives external high-side and low-side NMOS power switches with adaptive dead-time control. A user-selectable diode emulation mode enables discontinuous mode operation, for improved efficiency at light load conditions. A low quiescent current shutdown disables the controller and consumes less than 10 μA of total input current.
Additional features include a high-voltage bias regulator, automatic switch-over to external bias for improved efficiency, thermal shutdown, frequency synchronization, cycle-by-cycle current limit, and adjustable line undervoltage lockout. The device is available in a power enhanced HTSSOP-20 package featuring an exposed die attach pad to aid thermal dissipation.
Features
- Emulated Peak Current Mode
- Wide Operating Range Up to 100 V
- Low IQ Shutdown (<10 μA)
- Drives Standard or Logic Level MOSFETs
- Robust 3.5-A Peak Gate Drive
- Free-run or Synchronous Operation to 1 MHz
- Optional Diode Emulation Mode
- Programmable Output from 1.215 V to 80 V
- Precision 1.5% Voltage Reference
- Programmable Current Limit
- Programmable Soft-Start
- Programmable Line Undervoltage Lockout
- Automatic Switch to External Bias Supply
- HTSSOP-20 Exposed Pad
- Thermal Shutdown
- Create a Custom Design Using the LM5116 with the WEBENCH Power Designer
Applications
- - Automotive Infotainment - Industrial DC-DC Motor Drivers - Automotive USB Adapters - Telecom Servers
Datasheet
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
Sourcing Information
Need LM5116MHX/NOPB from Texas Instruments for your next order? SZ Procure provides local sourcing support in Shenzhen — we help buyers check supplier availability, compare quotations, and coordinate procurement for China-sourced components.
Our Shenzhen sourcing team can help with supplier sourcing, availability checks and quotation comparison for LM5116MHX/NOPB, then coordinate procurement, supplier screening, inspection and international shipping based on what you need.
Ready to source LM5116MHX/NOPB? Send your requirement through Request a Quote and we'll help check sourcing options and procurement costs.