Overview
The LMZ31704RVQT is a 4-A power module designed by Texas Instruments, offering a comprehensive integrated power solution. This module combines a DC/DC converter, power MOSFETs, a shielded inductor, and passives within a compact 10-mm × 10-mm × 4.3-mm QFN package. It is engineered for high efficiency and ease of use, requiring as few as three external components and eliminating the need for loop compensation and magnetics part selection. The LMZ31704RVQT is ideal for powering a wide range of ICs and systems, particularly in applications requiring high current and compact design.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.95 to 17 | V |
| Output Current | 4 | A |
| Output Voltage Range | 0.6 to 5.5 | V |
| Efficiency | Up to 95% | % |
| Switching Frequency Range | 200 kHz to 1.2 MHz | Hz |
| Package Type | 42-B3QFN (10x10x4.3mm) | - |
| Operating Temperature Range | -40 to 85 | °C |
| Thermal Impedance | 13.3 | °C/W |
Key Features
- Complete integrated power solution in a small footprint, low-profile design.
- Pin compatible with LMZ31710 and LMZ31707.
- Eco-mode™/light load efficiency (LLE).
- Wide-output voltage adjustability (0.6 V to 5.5 V) with 1% reference accuracy.
- Supports parallel operation for higher current.
- Optional split power rail allows input voltages 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.
- Adjustable slow start and output voltage sequencing/tracking.
- Power good output and programmable undervoltage lockout (UVLO).
- Overcurrent and overtemperature protection.
- Pre-bias output start-up.
- Integrated shielded inductor and meets EN55022 Class B emissions.
Applications
- Broadband and communications infrastructure.
- Automated test and medical equipment.
- Compact PCI / PCI express / PXI express.
- DSP and FPGA point-of-load applications.
Q & A
- What is the input voltage range of the LMZ31704RVQT?
The input voltage range is from 2.95 V to 17 V.
- What is the maximum output current of the LMZ31704RVQT?
The maximum output current is 4 A.
- What is the output voltage range of the LMZ31704RVQT?
The output voltage range is from 0.6 V to 5.5 V.
- What is the efficiency of the LMZ31704RVQT?
The efficiency can be up to 95%.
- What is the switching frequency range of the LMZ31704RVQT?
The switching frequency range is from 200 kHz to 1.2 MHz.
- What is the package type and dimensions of the LMZ31704RVQT?
The package type is 42-B3QFN with dimensions of 10 mm × 10 mm × 4.3 mm.
- What is the operating temperature range of the LMZ31704RVQT?
The operating temperature range is from -40°C to 85°C.
- Does the LMZ31704RVQT support parallel operation?
Yes, it supports parallel operation for higher current.
- What kind of protection does the LMZ31704RVQT offer?
The module offers overcurrent and overtemperature protection.
- Is the LMZ31704RVQT compliant with any specific emissions standards?
Yes, it meets EN55022 Class B emissions standards.
