Overview
The LMZ34002RKGR from Texas Instruments is a SIMPLE SWITCHER® power module designed to provide a negative output voltage. This module integrates a 15-W DC-DC converter, a shielded inductor, and necessary passives into a compact, low-profile QFN package. The module is easy to use and requires as few as five external components, eliminating the need for loop compensation and magnetics part selection. The 9×11×2.8 mm QFN package is optimized for small footprint and low-profile designs, making it ideal for applications requiring a negative output voltage.
The LMZ34002RKGR offers advanced packaging technology, ensuring robust and reliable power delivery compatible with standard QFN mounting and testing techniques. It is particularly suited for powering a wide range of ICs and analog circuits that require negative output voltages.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage (VIN) | 4.5 | 40 | V | |
| Output Voltage (VOUT) | -3 | -17 | V | |
| Output Current (IOUT) | 2 | A | ||
| Operating Temperature Range | -40 | 85 | °C | |
| Surge Capability | 45 | V | ||
| Efficiency (VIN = 24 V, VOUT = -12 V, IOUT = 1 A) | 85 | % | ||
| Junction-to-ambient Thermal Resistance (θJA) | 14 | °C/W | ||
| Package Type | 41-B1QFN |
Key Features
- Complete Integrated Power Solution allowing small footprint, low-profile design
- Wide Input Voltage Range from 4.5 V to 40 V
- Output Adjustable from –3 V to –17 V
- Supplies up to 2-A of Output Current
- 45-V Surge Capability
- Synchronizes to an External Clock
- Adjustable Slow-Start
- Programmable Undervoltage Lockout (UVLO)
- Output Overcurrent Protection
- Over Temperature Protection
- Enhanced Thermal Performance: 14°C/W
- Meets EN55022 Class B Emissions
- Integrated Shielded Inductor
Applications
- Industrial and Motor Controls
- Automated Test Equipment
- Bipolar Amplifiers in Audio/Video
- High Density Power Systems
Q & A
- What is the input voltage range of the LMZ34002RKGR? The input voltage range is from 4.5 V to 40 V.
- What is the adjustable output voltage range of the LMZ34002RKGR? The output voltage is adjustable from –3 V to –17 V.
- What is the maximum output current of the LMZ34002RKGR? The module can supply up to 2 A of output current.
- What is the operating temperature range of the LMZ34002RKGR? The operating temperature range is from –40°C to +85°C.
- Does the LMZ34002RKGR have overcurrent protection? Yes, it includes output overcurrent protection.
- Can the LMZ34002RKGR be synchronized to an external clock? Yes, it can synchronize to an external clock.
- What is the thermal resistance (θJA) of the LMZ34002RKGR? The junction-to-ambient thermal resistance (θJA) is 14°C/W.
- What type of package does the LMZ34002RKGR come in? It comes in a 41-B1QFN package.
- Does the LMZ34002RKGR meet any specific emissions standards? Yes, it meets EN55022 Class B Emissions standards.
- What are some typical applications for the LMZ34002RKGR? Typical applications include industrial and motor controls, automated test equipment, bipolar amplifiers in audio/video, and high density power systems.
