Overview
The LMR16006YDDCR from Texas Instruments is a SIMPLE SWITCHER® 4V to 60V, 600mA step-down (buck) regulator. This device is designed to provide efficient power conditioning from an unregulated input source, making it suitable for a wide range of applications including industrial, automotive, battery-powered equipment, and portable handheld instruments. The regulator features a low standby current of 28 µA in ECO mode and an ultra-low 1 µA shutdown current, which helps in prolonging battery life. It operates at fixed switching frequencies of either 0.7 MHz or 2.1 MHz, depending on the version, allowing the use of small external components while maintaining low output ripple voltage.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage Range | 4 | - | 60 | V |
| Output Current | - | - | 600 | mA |
| Feedback Voltage (VFB) | 0.747 | 0.765 | 0.782 | V |
| Peak Current Limit (ILIMIT) | 1200 | - | 1700 | mA |
| Switching Frequency (fSW) | 595 (X version) | 700 (X version) | 805 (X version) | kHz |
| Switching Frequency (fSW) | 1785 (Y version) | 2100 (Y version) | 2415 (Y version) | kHz |
| Thermal Shutdown Threshold | - | 170 | - | °C |
| Thermal Shutdown Hysteresis | - | 10 | - | °C |
| Package Type | - | - | - | SOT-6L |
| Body Size | - | - | - | 2.90 mm × 1.60 mm |
Key Features
- Wide input voltage range of 4 V to 60 V
- Output current up to 600 mA
- Low standby current of 28 µA in ECO mode and ultra-low 1 µA shutdown current
- Fixed switching frequencies of 0.7 MHz (X version) and 2.1 MHz (Y version)
- Internal soft-start and compensation circuits to minimize external components
- Built-in protection features including pulse-by-pulse current limit, thermal sensing, and shutdown due to excessive power dissipation
- Small overall solution size with SOT-6L package
- High duty cycle operation supported
Applications
- Industrial distributed power systems
- Automotive systems
- Battery-powered equipment
- Portable handheld instruments
- Portable media players
Q & A
- What is the input voltage range of the LMR16006YDDCR?
The input voltage range is from 4 V to 60 V.
- What is the maximum output current of the LMR16006YDDCR?
The maximum output current is up to 600 mA.
- What are the switching frequencies for the LMR16006YDDCR?
The switching frequencies are 0.7 MHz for the X version and 2.1 MHz for the Y version.
- What is the standby current in ECO mode for the LMR16006YDDCR?
The standby current in ECO mode is 28 µA.
- What is the shutdown current for the LMR16006YDDCR?
The shutdown current is 1 µA.
- What protection features are built into the LMR16006YDDCR?
The device includes pulse-by-pulse current limit, thermal sensing, and shutdown due to excessive power dissipation.
- What is the package type and size of the LMR16006YDDCR?
The package type is SOT-6L with a body size of 2.90 mm × 1.60 mm.
- What are some typical applications for the LMR16006YDDCR?
Typical applications include industrial distributed power systems, automotive systems, battery-powered equipment, portable handheld instruments, and portable media players.
- How does the thermal shutdown feature work in the LMR16006YDDCR?
The device implements an internal thermal shutdown that stops switching when the junction temperature exceeds 170°C. It reinitiates the power-up sequence once the temperature drops below 160°C.
- Can the LMR16006YDDCR be used in high duty cycle operations?
