Overview
The LMR16010PDDAR is a 60 V, 1 A SIMPLE SWITCHER step-down regulator produced by Texas Instruments. This device is designed to operate with a wide input voltage range from 4.3 V to 60 V, making it versatile for various applications. It integrates a high-side MOSFET, which simplifies the design and reduces the number of external components required. The regulator is suitable for use in industrial, automotive, and other systems that require efficient power conditioning from unregulated sources.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 4.3 V to 60 V |
| Output Current | Up to 1 A |
| Output Voltage Range | Adjustable from 0.8 V to 50 V |
| Switching Frequency | Programmable from 200 kHz to 2.5 MHz |
| Package Type | 8-Pin SOIC (0.154", 3.90mm Width) |
| Quiescent Current (No Load) | Typically 40 μA |
| Shutdown Current | Typically 1 μA |
| Operating Temperature Range | -40°C to +125°C |
| Protection Features | Cycle-by-cycle current limit, thermal shutdown, output overvoltage protection, undervoltage lockout |
Key Features
- Integrated high-side MOSFET with low on-resistance (typical 155 mΩ for LMR16030, similar performance expected for LMR16010)
- Wide adjustable switching frequency range for optimizing efficiency or external component size
- Internal loop compensation for stable operation with minimal external components
- Precision enable input for simplified regulator control and system power sequencing
- Ultra-low quiescent current in sleep mode (typically 40 μA) and shutdown mode (typically 1 μA)
- Protection features including cycle-by-cycle current limit, thermal shutdown, output overvoltage protection, and undervoltage lockout
- Programmable soft-start time to prevent inrush current
- Synchronization capability with an external clock from 250 kHz to 2.3 MHz
Applications
The LMR16010PDDAR is suitable for a wide range of applications, including:
- Industrial power systems requiring efficient DC-DC conversion
- Automotive systems where a wide input voltage range is necessary
- Battery-powered systems where low quiescent current is crucial for prolonging battery life
- General-purpose power supplies where adjustable output voltage and high efficiency are required
Q & A
- What is the input voltage range of the LMR16010PDDAR?
The input voltage range is from 4.3 V to 60 V. - What is the maximum output current of the LMR16010PDDAR?
The maximum output current is up to 1 A. - What is the output voltage range of the LMR16010PDDAR?
The output voltage is adjustable from 0.8 V to 50 V. - How can the switching frequency be adjusted?
The switching frequency can be programmed from 200 kHz to 2.5 MHz using an external resistor. - What are the key protection features of the LMR16010PDDAR?
The device includes cycle-by-cycle current limit, thermal shutdown, output overvoltage protection, and undervoltage lockout. - What is the quiescent current in sleep mode and shutdown mode?
In sleep mode, the quiescent current is typically 40 μA, and in shutdown mode, it is typically 1 μA. - Can the LMR16010PDDAR be synchronized with an external clock?
Yes, the device can be synchronized with an external clock from 250 kHz to 2.3 MHz. - What is the purpose of the precision enable input?
The precision enable input simplifies regulator control and system power sequencing. - How does the soft-start feature work?
The soft-start feature prevents inrush current by allowing the output voltage to ramp up gradually, programmable using an external capacitor. - What is the operating temperature range of the LMR16010PDDAR?
The operating temperature range is from -40°C to +125°C.
