Overview
The Texas Instruments LMZ31704RVQR is a high-efficiency DC-DC power conversion module designed to provide a simplified and reliable power solution. This module integrates a 4-A DC/DC converter with power MOSFETs, a shielded inductor, and necessary passives into a compact 10x10x4.3mm QFN package. It is part of the SIMPLE SWITCHER family and is known for its high efficiency, reaching up to 95%, and its ability to operate over a wide input voltage range of 2.95V to 17V.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Iout (max) (A) | 4 | Vin (min) (V) | 2.95 |
| Vin (max) (V) | 17 | Vout (min) (V) | 0.6 |
| Vout (max) (V) | 5.5 | Soft start | Adjustable |
| Features | Current Sharing, EMI Tested, Frequency synchronization, Light Load Efficiency, Power good, Remote Sense, Tracking | Operating temperature range (°C) | -40 to 85 |
| Iq (typ) (mA) | 0.8 | Regulated outputs (#) | 1 |
| Switching frequency (max) (kHz) | 1200 | Switching frequency (min) (kHz) | 200 |
| Duty cycle (max) (%) | 100 | Topology | Buck, Synchronous Buck |
| Type | Module | Rating | Catalog |
| Control mode | Current mode | Package/Case | B3QFN42 |
Key Features
- Simplified DC-DC Power Conversion: Integrates all necessary components into a single module, eliminating the need for external loop compensation and magnetics selection.
- High-Efficiency Switching Regulator: Achieves efficiencies up to 95% and features Eco-mode™ / light load efficiency (LLE).
- Wide Input Voltage Range: Operates from 2.95V to 17V, with optional split power rail allowing input voltages down to 2.95V.
- Adjustable Output Voltage: Output voltage adjustable from 0.6V to 5.5V with 1% reference accuracy.
- Current Sharing and Parallel Operation: Supports parallel operation for higher current requirements.
- Thermal Protection and Overcurrent Protection: Features thermal shutdown and overcurrent protection for prolonged reliability.
- Compact QFN Package: 10x10x4.3mm QFN package suitable for space-constrained applications.
- EMC Compliant: Meets EN55022 Class B emissions standards.
- Power Good Output and Programmable UVLO: Includes power good output and programmable undervoltage lockout (UVLO).
Applications
The LMZ31704RVQR is versatile and can be used in various industries and applications, including:
- Industrial Automation: Powering control systems, sensors, and other industrial equipment.
- Consumer Electronics: Efficient power supply for microcontrollers, power management ICs, and other low-voltage devices.
- Automotive Systems: Suitable for power management in infotainment systems, sensors, and small appliances.
- Telecommunications Equipment: Providing reliable and efficient power for telecommunications devices.
Q & A
- What is the input voltage range of the LMZ31704RVQR?
The input voltage range is from 2.95V to 17V).
- What is the maximum output current of the LMZ31704RVQR?
The maximum output current is 4A).
- What is the operating temperature range of the LMZ31704RVQR?
The operating temperature range is from -40°C to 85°C).
- Does the LMZ31704RVQR have thermal protection?
Yes, it features thermal shutdown and overcurrent protection).
- Is the LMZ31704RVQR EMC compliant?
Yes, it meets EN55022 Class B emissions standards).
- What is the package type of the LMZ31704RVQR?
The package type is B3QFN42, a compact QFN package).
- Can the LMZ31704RVQR be used in parallel operation?
Yes, it supports parallel operation for higher current requirements).
- What is the efficiency of the LMZ31704RVQR?
The efficiency can reach up to 95%).
- Does the LMZ31704RVQR have adjustable switching frequency?
Yes, the switching frequency is adjustable from 200 kHz to 1.2 MHz).
- Is the LMZ31704RVQR suitable for space-constrained applications?
Yes, its compact QFN package makes it ideal for space-saving applications).
