3.1-75V Wide Vin, 1A Current Mode Non-Synchronous Switch Mode Regulator
Product details
Parameters
Package | Pins | Size
Features
- AEC-Q100 Qualified (TJ = –40°C to 125°C)
- Integrated 75-V N-Channel MOSFET
- Ultra-Wide Input Voltage Range from
3.1 V to 75 V - Integrated High Voltage Bias Regulator
- Adjustable Output Voltage
- 1.5% Output Voltage Accuracy
- Current Mode Control with Selectable
Compensation - Wide Bandwidth Error Amplifier
- Integrated Current Sensing and Limiting
- Integrated Slope Compensation
- 85% Maximum Duty Cycle Limit
- Single Resistor Oscillator Programming
- Oscillator Synchronization Capability
- Enable / Undervoltage Lockout (UVLO) Pin
- Thermal Shutdown
Description
The LM5001 high-voltage switch-mode regulator features all of the functions necessary to implement efficient high-voltage Boost, Flyback, SEPIC and Forward converters, using few external components. This easy-to-use regulator integrates a 75-V N-Channel MOSFET with a 1-A peak current limit. Current mode control provides inherently simple loop compensation and line-voltage feed-forward for superior rejection of input transients. The switching frequency is set with a single resistor and is programmable up to 1.5 MHz. The oscillator can also be synchronized to an external clock. Additional protection features include: current limit, thermal shutdown, undervoltage lockout and remote shutdown capability.
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The LM5001 boost evaluation board is designed to provide the design engineer with a fully functional power converter based on the boost topology to evaluate the LM5001 high voltage switch mode regulator. The performance of the evaluation board is as follows:
Features
- Input operating range: 16 to 36V
- Output Voltage: 48V
- Output Current: 0 to 150 mA
- Measured Efficiency: 91% @ 150 mA, 86% @ 75 mA
- Frequency of Operation: 240 kHz
- Board Size: 1.75 X 1.75 inches
- Load Regulation: 1%
- Line Regulation: 0.1%
Description
LM5001 High Voltage Switch Mode Regulator
Features
- Integrated 75 volt N-Channel MOSFET
- Ultra-wide input voltage range from 3.1V to 75V
- Integrated high voltage bias regulator
- Adjustable output voltage
- 1.5% output voltage accuracy
- Current mode control with selectable compensation
- Wide bandwidth error amplifier
- Integrated current sensing and limiting
- (...)
Description
The LM5001 non-isolated flyback evaluation board is designed to provide the design engineer with a fully functional non-isolated flyback power converter based on Current Mode Control to evaluate the LM5001 switching regulator IC. The evaluation board provides a 5V output with 1A current capability (...)
Features
Refer to the LM5001 datasheet for complete circuit design information.
- Input Range: 16 to 42V
- Output Voltage: 5V, 2%
- Output Current: 0 to 1A
- Frequency of Operation: 250 kHz
- Board Size: 2.75 X 1.75 X 0.6 inches
- Load Regulation: 0.1%
- Line Regulation: 0.1%
- Over Current Limiting
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
Features
- Features isolated topologies like Fly-Buck™, Fly-Buck-Boost, DCM and CCM Flyback
- Capability to design up to 6 isolated outputs
- Recommends ICs for desired application design
- Incorporates loop compensation in designs
- Compares efficiency, external component count and transformer currents for every topology (...)
Reference designs
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| SOIC (D) | 8 | View options |
| WSON (NGT) | 8 | View options |
Ordering & quality
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