LMZ35003 7V to 50V, 2.5A Step-Down Power Module in 9x11x2.8mm QFN Package | TI.com

LMZ35003 (ACTIVE)

7V to 50V, 2.5A Step-Down Power Module in 9x11x2.8mm QFN Package

 

Description

The LMZ35003 power module is an easy-to-use integrated power solution that combines a 2.5-A DC/DC converter with a shielded inductor and passives into a low profile, QFN package. This total power solution allows as few as five external components and eliminates the loop compensation and magnetics part selection process.

The small 9 mm × 11 mm × 2.8 mm, QFN package is easy to solder onto a printed circuit board and allows a compact point-of-load design with greater than 90% efficiency and excellent power dissipation capability. The LMZ35003 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 Allows
    Small Footprint, Low-Profile Design
  • Wide Input Voltage Range from 7 V to 50 V
  • Output Adjustable from 2.5 V to 15 V
  • 65-V Surge Capability
  • Efficiencies Up To 96%
  • Adjustable Switching Frequency
    (300 kHz to 1 MHz)
  • Synchronizes to an External Clock
  • Adjustable Slow-Start
  • Output Voltage Sequencing and Tracking
  • Power Good Output
  • Programmable Undervoltage Lockout (UVLO)
  • Output Overcurrent Protection
  • Over Temperature Protection
  • Pre-bias Output Start-up
  • Operating Temperature Range: –40°C to 85°C
  • Enhanced Thermal Performance: 14°C/W
  • Meets EN55022 Class B Emissions
    - Integrated Shielded Inductor
  • For Design Help visit http://www.ti.com/LMZ35003
  • Create a Custom Design Using the LMZ35003 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
LMZ35003 LMZ14201H LMZ34202 LMZ36002 LMZM33603
2.5     1     2     2     3    
7     6     4.5     4.5     4    
50     42     42     60     36    
2.5     5     2.5     2.5     1    
15     24     7.5     7.5     18    
Adjustable     Adjustable     Adjustable     Adjustable     Fixed    
EMI Tested
Enable
Frequency Synchronization
Power Good
Remote Sense
Tracking    
EMI Tested
Enable
Tracking    
EMI Tested
Enable
Frequency Synchronization
Light Load Efficiency
Power Good
Remote Sense    
EMI Tested
Enable
Frequency Synchronization
Light Load Efficiency
Power Good
Remote Sense    
EMI Tested
Enable
Frequency Synchronization
Power Good    
0.7     1     0.6     0.6     8.5    
1     1     1     1     1    
41B1QFN: 99 mm2: 9 x 11 (B1QFN | 41)     7TO-PMOD: 140 mm2: 13.77 x 10.16 (TO-PMOD | 7)     43B3QFN: 100 mm2: 10 x 10 (B3QFN | 43)     43B3QFN: 100 mm2: 10 x 10 (B3QFN | 43)     18B2QFN: 63 mm2: 7 x 9 (B2QFN | 18)    
1000     1000     1000     1000     1200    
300     200     200     200     200    
400     800     500     500     400    
Buck
Inverting Buck-Boost    
Buck
Inverting Buck-Boost
Synchronous Buck    
Buck
Inverting Buck-Boost
Synchronous Buck    
Buck
Inverting Buck-Boost
Synchronous Buck    
Buck
Inverting Buck-Boost
Synchronous Buck    
-40 to 85     -40 to 125     -40 to 105     -40 to 105     -40 to 105    
85     92.5     90     95     90    
B1QFN | 41     TO-PMOD | 7     B3QFN | 43     B3QFN | 43     B2QFN | 18    
Catalog     Catalog     Catalog     Catalog     Catalog    
Module     Module     Module     Module     Module    

Design tool

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

WEBENCH® Designer LMZ35003

  Min   Max Range
Vin  V 7.0 to 50.0V
Vout  V 2.5 to 15V
Iout  A ≤ 2.5A
Ambient Temp  °C -40 to 125°C