1 Features
1• Complete integrated power solution allows small footprint, low-profile design
• 10 mm × 10 mm × 4.3 mm package
– Pin compatible with LMZ31710 and LMZ31707
• Efficiencies up to 95%
• Eco-mode™ / light load efficiency (LLE)
• Wide-output voltage adjust 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)
• Synchronizes to an external clock
• Provides 180° out-of-phase clock signal
• Adjustable slow start
• Output voltage sequencing / tracking
• Power good output
• Programmable undervoltage lockout (UVLO)
• Overcurrent and overtemperature protection
• Pre-bias output start-up
• Operating temperature range: –40°C to 85°C
• Enhanced thermal performance: 13.3°C/W
• Meets EN55022 Class B emissions
– Integrated shielded inductor
• Create a custom design using the LMZ31704RVQR with the WEBENCH® Power Designer
2 Applications
• Broadband and communications infrastructure
• Automated test and medical equipment
• Compact PCI / PCI express / PXI express
• DSP and FPGA point-of-load applications
3 Description
The LMZ31704RVQR power module is an easy-to-use integrated power solution that combines a 4-A DC/DC converter with power MOSFETs, a shielded inductor, and passives into a low profile, QFN package. This total power solution allows as few as three external components and eliminates the loop compensation and magnetics part selection process.
The 10 × 10 × 4.3 mm QFN package is easy to solder onto a printed circuit board and allows a compact point-of-load design. Achieves greater than 95% efficiency and excellent power dissipation capability with a thermal impedance of 13.3°C/W. The LMZ31704RVQR offers the flexibility and the feature-set of a discrete point-of-load design and is ideal for powering a wide range of ICs and systems. Advanced packaging technology affords a robust and reliable power solution compatible with standard QFN mounting and testing techniques.
Feature
- Complete integrated power solution allows small footprint, low-profile design
- 10-mm × 10-mm × 4.3-mmpackage
- Pin compatible with LMZ31710 and LMZ31707
- Efficiencies up to 95%
- Eco-mode? / light load efficiency (LLE)
- Wide-outputvoltage adjust 0.6 V to 5.5 V, with 1% reference accuracy
- Supports parallel operationfor higher current
- Optional split power rail allows input voltages down to 2.95 V
- Adjustable switching frequency(200 kHz to 1.2 MHz)
- Synchronizes to an external clock
- Provides 180° out-of-phaseclock signal
- Adjustable slow start
- Output voltagesequencing / tracking
- Power good output
- Programmable undervoltage lockout (UVLO)
- Overcurrent and overtemperature protection
- Pre-bias output start-up
- Operating temperature range: –40°C to 85°C
- Enhanced thermalperformance: 13.3°C/W
- Meets EN55022 Class Bemissions
- Integrated shielded inductor
- Create a custom design using the LMZ31704 with theWEBENCH? Power Designer
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DescriptionThe LMZ31704 power module is an easy-to-use integrated power solution that combines a 4-ADC/DC converter with power MOSFETs, a shielded inductor, and passives into a low profile, QFNpackage. This total power solution allows as few as three external components and eliminates theloop compensation and magnetics part selection process.
The 10 × 10 × 4.3 mm QFN package is easy to solder onto a printed circuit board andallows a compact point-of-load design. Achieves greater than 95% efficiency and excellent powerdissipation capability with a thermal impedance of 13.3°C/W. The LMZ31704 offers the flexibilityand the feature-set of a discrete point-of-load design and is ideal for powering a wide range ofICs and systems. Advanced packaging technology affords a robust and reliable power solutioncompatible with standard QFN mounting and testing techniques.
(Picture:Pinout / Diagram)
