LMZ31530 3V to 14.5V, 30A Step-Down Power Module in 15x16x5.8mm QFN Package | TI.com

LMZ31530 (ACTIVE)

3V to 14.5V, 30A Step-Down Power Module in 15x16x5.8mm QFN Package

 

Description

The LMZ31530 power module is an easy-to-use integrated power solution that combines a 30-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 15 × 16 × 5.8 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, has ultra-fast load step response and excellent power dissipation capability with a thermal impedance of 8.6°C/W. The LMZ31530 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.

Features

  • Complete Integrated Power Solution;
    Smaller than a Discrete Design
  • 15 mm × 16 mm × 5.8 mm Package Size
    - Pin Compatible with LMZ31520
  • Ultra-Fast Load Step Response
  • Efficiencies Up To 96%
  • Wide-Output Voltage Adjust
    0.6 V to 3.6 V, with 1% Reference Accuracy
  • Optional Split Power Rails Allows
    Input Voltage Down to 3 V
  • Selectable Switching Frequency;
    (300 kHz to 850 kHz)
  • Selectable Slow-Start
  • Adjustable Over Current Limit
  • Power Good Output
  • Output Voltage Sequencing
  • Over Temperature Protection
  • Pre-bias Output Start-up
  • Operating Temperature Range: –40°C to 85°C
  • Enhanced Thermal Performance: 8.6°C/W
  • Meets EN55022 Class A Emissions
    - Integrated Shielded Inductor
  • Create a Custom Design Using the LMZ31530 With the WEBENCH® Power Designer

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Parametrics Compare all products in Buck modules (integrated inductor)

 
Iout (Max) (A)
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Soft Start
Features
Iq (Typ) (mA)
Regulated outputs (#)
Package size: mm2:W x L (PKG)
Switching Frequency (Max) (kHz)
Switching Frequency (Min) (kHz)
Switching Frequency (Typ) (kHz)
Topology
Operating temperature range (C)
Duty cycle (Max) (%)
Package Group
Rating
Type
LMZ31530 LMZ31520 TPSM846C23 TPSM846C24
30     20     35     35    
3     3     4.5     4.5    
14.5     14.5     15     15    
0.6     0.6     0.35     0.5    
3.6     3.6     2     2    
Adjustable     Adjustable     Adjustable     Fixed    
EMI Tested
Enable
Light Load Efficiency
Power Good
Remote Sense    
EMI Tested
Enable
Light Load Efficiency
Power Good
Remote Sense    
Current Sharing
EMI Tested
Enable
Frequency Synchronization
PMBus
Phase Interleaving
Power Good
Remote Sense
Tracking    
Current Sharing
EMI Tested
Enable
Frequency Synchronization
Output Discharge
Power Good
Remote Sense    
39     39     55     55    
1     1     1     1    
72BQFN: 240 mm2: 15 x 16 (BQFN | 72)     72BQFN: 240 mm2: 15 x 16 (BQFN | 72)     See datasheet (QFM)     See datasheet (QFM)    
850     850     1000     1000    
300     300     300     300    
500     500     500     500    
Buck
Synchronous Buck    
Buck
Synchronous Buck    
Buck
Synchronous Buck    
Buck
Synchronous Buck    
-40 to 85     -40 to 85     -40 to 105     -40 to 105    
80     80     83     83    
BQFN | 72     BQFN | 72     QFM | 59     QFM | 59    
Catalog     Catalog     Catalog     Catalog    
Module     Module     Module     Module    

Design tool

New!
WEBENCH® Power Designer is now even easier to use. Try it now.

WEBENCH® Designer LMZ31530

  Min   Max Range
Vin  V 4.5 to 14.5V
Vout  V 0.6 to 3.6V
Iout  A ≤ 30A
Ambient Temp  °C -40 to 125°C