LM5010SD/NOPB Power Regulator IC Switching Voltage Regulators HIGH VOLTAGE 1A STEP DOWN SWITCHING REG
1 Features
Valley Current Limit At 1.25 A
Switching Frequency Can Exceed 1 MHz
Integrated N-Channel Buck Switch
Integrated Start-Up Regulator
No Loop Compensation Required
Ultra-Fast Transient Response
Operating Frequency Remains Constant With Load and Line Variations
Maximum Duty Cycle Limited During Start-Up
Adjustable Output Voltage
Precision 2.5-V Feedback Reference
Thermal Shutdown
Exposed Thermal Pad for Improved Heat Dissipation
2 Applications
High Efficiency Point-of-Load (POL) Regulator
Non-Isolated Telecommunications Buck Regulator
Secondary High Voltage Post Regulator
Automotive Systems
3 Description
The LM5010 step-down switching regulator features all the functions needed to implement a low-cost, efficient, buck bias regulator capable of supplying in excess of 1-A load current. This high-voltage regulator contains an N-Channel Buck Switch, and is available in thermally enhanced 10-pin WSON and 14-pin HTSSOP packages. The hysteretic regulation scheme requires no loop compensation, resulting in fast load transient response, and simplifies circuit implementation. The operating frequency remains constant with line and load variations due to the inverse relationship between the input voltage and the ON-time. The valley current limit detection is set at 1.25 A. Additional features include: VCC undervoltage lockout, thermal shutdown, gate drive undervoltage lockout, and maximum duty cycle limiter.
Device Information
PART NUMBER |
PACKAGE |
BODY SIZE (NOM) |
LM5010 |
WSON (10) |
4.00 mm × 4.00 mm |
HTSSOP (14) |
4.40 mm × 5.00 mm |