Overview
The LM73606RNPR is a high-efficiency synchronous step-down DC/DC converter produced by Texas Instruments. This device is part of the LM73605 and LM73606 family, which are designed to be easy-to-use and capable of driving up to 6 A of load current from a supply voltage ranging from 3.5 V to 36 V. These converters offer exceptional efficiency and output accuracy in a compact solution size, making them suitable for a wide range of applications. The LM73606 employs peak current-mode control and features adjustable switching frequency, synchronization to an external clock, and various protection mechanisms such as thermal shutdown and cycle-by-cycle current limiting.
Key Specifications
| Parameter | Value |
|---|---|
| Package | WQFN (RNP) with 30 pins |
| Operating Temperature Range | -40°C to 125°C |
| Input Voltage Range | 3.5 V to 36 V |
| Output Current Capability | Up to 6 A |
| Output Voltage Range | 1 V to 34.2 V |
| Switching Frequency Range | 350 kHz to 2.2 MHz |
| Quiescent Current | 0.8 µA in shutdown, 15 µA in active mode with no load (typical) |
| MOSFET ON-Resistance | RDS_ON_HS = 53 mΩ, RDS_ON_LS = 31 mΩ (typical) |
| Minimum On-Time and Off-Time | tON-MIN = 60 ns, tOFF-MIN = 70 ns (typical) |
Key Features
- Synchronous rectification
- Wettable flanks QFN package (WQFN)
- Low quiescent current: 0.8 µA in shutdown, 15 µA in active mode with no load (typical)
- External bias input to improve efficiency
- Pin-selectable auto mode or forced PWM operation
- Adjustable frequency range: 350 kHz to 2.2 MHz
- Synchronizable to external clock
- Internal compensation
- Power-good flag
- Precision enable to program system UVLO
- Flexible soft-start features: start-up into pre-biased load, fixed or adjustable soft-start time, output voltage tracking
- Cycle-by-cycle current limiting and short-circuit protection with hiccup mode
Applications
The LM73606RNPR is suitable for a variety of applications that require high-efficiency DC/DC conversion, including but not limited to:
- Industrial power systems
- Automotive systems
- Consumer electronics
- Telecommunications equipment
- Medical devices
Q & A
- What is the input voltage range of the LM73606RNPR?
The input voltage range is from 3.5 V to 36 V. - What is the maximum output current of the LM73606RNPR?
The maximum output current is up to 6 A. - What is the switching frequency range of the LM73606RNPR?
The switching frequency range is from 350 kHz to 2.2 MHz. - Does the LM73606RNPR support synchronization to an external clock?
Yes, it supports synchronization to an external clock. - What are the key protection features of the LM73606RNPR?
The key protection features include thermal shutdown, cycle-by-cycle current limiting, and short-circuit protection with hiccup mode. - What is the package type and pin count of the LM73606RNPR?
The package type is WQFN (RNP) with 30 pins. - How does the LM73606RNPR manage quiescent current?
The device has a low quiescent current of 0.8 µA in shutdown and 15 µA in active mode with no load (typical). - Can the LM73606RNPR operate in different modes?
Yes, it supports pin-selectable auto mode or forced PWM operation. - Does the LM73606RNPR have soft-start features?
Yes, it has flexible soft-start features including start-up into pre-biased load, fixed or adjustable soft-start time, and output voltage tracking. - Is the LM73606RNPR RoHS compliant?
Yes, it complies with the RoHS 3 Directive (2015/863/EU).
