Overview
The LMZ31707RVQR is a 7-A step-down power module produced by Texas Instruments. It is part of the SIMPLE SWITCHER® series and is designed to provide a complete integrated power solution in a compact package. The module combines a DC-DC converter with power MOSFETs, a shielded inductor, and passives into a low-profile QFN package, measuring 10-mm × 10-mm × 4.3-mm. This design allows for a small footprint and eliminates the need for loop compensation and magnetics part selection, making it easy to integrate into various applications. The LMZ31707RVQR operates over an input voltage range of 2.95 V to 17 V and can output voltages from 0.6 V to 5.5 V with high efficiency, up to 95%.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.95 V to 17 V | V |
| Output Voltage Range | 0.6 V to 5.5 V | V |
| Output Current | 7 A | A |
| Efficiency | Up to 95% | % |
| Switching Frequency | 200 kHz to 1.2 MHz | kHz/MHz |
| Operating Temperature Range | -40°C to +85°C | °C |
| Thermal Impedance | 13.3°C/W | °C/W |
| Package Type | B3QFN (RVQ) | - |
| Package Dimensions | 10-mm × 10-mm × 4.3-mm | mm |
| Pins | 42 | - |
Key Features
- Complete integrated power solution in a compact QFN package.
- Pin compatible with LMZ31710 and LMZ31704.
- Efficiencies up to 95% and Eco-mode™ / light load efficiency (LLE).
- Wide-output voltage adjustment from 0.6 V to 5.5 V with 1% reference accuracy.
- Supports parallel operation for higher current.
- Optional split power rail allows input voltage down to 2.95 V.
- Adjustable switching frequency (200 kHz to 1.2 MHz) and synchronization to an external clock.
- Provides 180° out-of-phase clock signal and adjustable slow start.
- Output voltage sequencing / tracking and power good output.
- Programmable undervoltage lockout (UVLO) and overcurrent and overtemperature protection.
- Pre-Bias output start-up and meets EN55022 Class B emissions.
- Integrated shielded inductor and enhanced thermal performance.
Applications
- Broadband and communications infrastructure.
- Automated test and medical equipment.
- Compact PCI / PCI express / PXI express.
- DSP and FPGA point-of-load applications.
- Energy and power systems, including power distribution systems and uninterruptible power supplies (UPS).
- Transportation and logistics, such as electronic vehicle control units or logistics tracking devices.
- Renewable energy systems, including solar panel controllers, battery chargers, and wind turbine power management units.
- Automotive applications, such as power supply solutions for in-vehicle networks or infotainment systems).
Q & A
- What is the input voltage range of the LMZ31707RVQR? The input voltage range is from 2.95 V to 17 V.
- What is the output voltage range of the LMZ31707RVQR? The output voltage range is from 0.6 V to 5.5 V.
- What is the maximum output current of the LMZ31707RVQR? The maximum output current is 7 A.
- What is the efficiency of the LMZ31707RVQR? The efficiency can be up to 95%.
- What is the operating temperature range of the LMZ31707RVQR? The operating temperature range is from -40°C to +85°C.
- What is the thermal impedance of the LMZ31707RVQR? The thermal impedance is 13.3°C/W.
- Is the LMZ31707RVQR pin compatible with other models? Yes, it is pin compatible with LMZ31710 and LMZ31704.
- Can the LMZ31707RVQR be synchronized to an external clock? Yes, it can be synchronized to an external clock and provides a 180° out-of-phase clock signal.
- What kind of protection does the LMZ31707RVQR offer? It offers programmable undervoltage lockout (UVLO), overcurrent, and overtemperature protection.
- Does the LMZ31707RVQR meet any specific emissions standards? Yes, it meets EN55022 Class B emissions.
