Overview
The LM5017SD/NOPB is a 100-V, 600-mA synchronous stepdown regulator produced by Texas Instruments. It features integrated high-side and low-side MOSFETs and employs a constant on-time (COT) control scheme, which requires no loop compensation and provides excellent transient response. This regulator is designed to handle a wide input voltage range of 7.5 V to 100 V and can be used in various applications requiring efficient step-down regulation from higher input voltages.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 7.5 V to 100 V |
| Output Current | 600 mA |
| Output Voltage Range | Adjustable from 1.225 V |
| Operating Frequency | Adjustable up to 1 MHz |
| Operating Temperature Range | -40°C to 125°C |
| Package Types | WSON-8, SO PowerPAD-8 |
| Feedback Reference | Precision 2% |
| Protection Features | Thermal shutdown, Undervoltage Lockout (UVLO), Intelligent Peak Current Limit |
Key Features
- Wide 7.5-V to 100-V input range
- Integrated 100-V high-side and low-side switches
- No Schottky diode required
- Constant on-time control with no loop compensation required
- Ultra-fast transient response
- Nearly constant operating frequency
- Intelligent peak current limit
- Adjustable output voltage from 1.225 V
- Precision 2% feedback reference
- Frequency adjustable up to 1 MHz
- Adjustable undervoltage lockout (UVLO)
- Remote shutdown and thermal shutdown
Applications
- Industrial programmable logic controllers (PLC)
- Smart power meters
- Telecom primary and secondary side bias
- Low-power isolated DC/DC (Fly-Buck™)
- Automotive electronics
- Isolated bias supply
Q & A
- What is the input voltage range of the LM5017SD/NOPB?
The input voltage range is 7.5 V to 100 V. - What is the maximum output current of the LM5017SD/NOPB?
The maximum output current is 600 mA. - What control scheme does the LM5017SD/NOPB use?
The LM5017SD/NOPB uses a constant on-time (COT) control scheme. - Does the LM5017SD/NOPB require loop compensation?
No, it does not require loop compensation. - What are the available package types for the LM5017SD/NOPB?
The available package types are WSON-8 and SO PowerPAD-8. - What is the operating temperature range of the LM5017SD/NOPB?
The operating temperature range is -40°C to 125°C. - What protection features does the LM5017SD/NOPB have?
The protection features include thermal shutdown, undervoltage lockout (UVLO), and intelligent peak current limit. - Can the output voltage of the LM5017SD/NOPB be adjusted?
Yes, the output voltage can be adjusted from 1.225 V. - Is the operating frequency of the LM5017SD/NOPB adjustable?
Yes, the operating frequency can be adjusted up to 1 MHz. - What are some typical applications of the LM5017SD/NOPB?
Typical applications include industrial PLCs, smart power meters, telecom bias supplies, and automotive electronics.
