2.95V to 17V, 4A Step-Down Power Module with Current Sharing in 10x10x4.3mm QFN Package
Product details
Parameters
Package | Pins | Size
Features
- 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 LMZ31704 with the WEBENCH® Power Designer
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Description
The LMZ31704 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 LMZ31704 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.
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
Features
- Jumper selectable output voltage
- Adjustable Soft Start
- Adjustable turn-on UVLO
- Component footprints for user defined programming parts
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
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Reference designs
Design files
-
download PMP10630 BOM.pdf (96KB) -
download PMP10630 PCB.pdf (604KB) -
download PMP10630 Gerber.zip (406KB)
Design files
-
download PMP9365 BOM.pdf (85KB) -
download PMP9365 Gerber.zip (1103KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
B3QFN (RVQ) | 42 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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