LMZ34202 4.5V to 42V, 2A Step-Down Power Module in QFN Package | TI.com

LMZ34202 (ACTIVE) 4.5V to 42V, 2A Step-Down Power Module in QFN Package

 

Description

The LMZ34202 power module is an easy-to-use integrated power supply that combines a 2-A DC-DC converter with a shielded inductor and passives into a low profile, QFN package. This total power solution allows as few as three external components while maintaining an ability to adjust key parameters to meet specific design requirements.

The QFN package is easy to solder to a printed circuit board, allows reflow profiles up to 245°C, and has excellent power dissipation capability. The LMZ34202 offers flexibilty with many features and is ideal for powering a wide range of devices and systems.

Features

  • Complete Integrated Power Solution Allows
    Small Footprint, Low-Profile Design
  • 10 mm × 10 mm × 4.3 mm Package
  • Wide-Output Voltage Adjust (2.5 V to 7.5 V)
  • Adjustable Switching Frequency
    (200 kHz to 1 MHz)
  • Synchronizes to an External Clock
  • Automatic PFM Mode for Light Load Efficiency
  • Adjustable Soft-Start Time
  • Output Voltage Sequencing / Tracking
  • Power Good Output
  • Programmable Undervoltage Lockout (UVLO)
  • Over-Temperature Thermal Shutdown Protection
  • Over-Current Protection (Hiccup Mode)
  • Pre-Bias Output Start-Up
  • Operating Temperature Range: –40°C to 105°C
  • Enhanced Thermal Performance: 14°C/W
  • Meets EN55022 Class B Emissions
    – Integrated Shielded Inductor
  • Create a Custom Design using the LMZ34202 with the WEBENCH® Power Designer

All trademarks are the property of their respective owners.

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

WEBENCH® Designer LMZ34202

  Min   Max Range
Vin  V 4.5 to 42.0V
Vout  V 2.5 to 7.5V
Iout  A ≤ 2A
Ambient Temp  °C -40 to 105°C

Parametrics

Compare all products in Buck modules (integrated inductor) Email Download to Excel
Part number Order 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 Type
LMZ34202 Order now 2     4.5     42     2.5     7.5     Adjustable     EMI Tested
Enable
Frequency Synchronization
Light Load Efficiency
Power Good
Remote Sense    
0.6     1     43B3QFN: 100 mm2: 10 x 10 (B3QFN | 43)     1000     200     500     Buck
Inverting Buck-Boost
Synchronous Buck    
-40 to 105     90     B3QFN | 43     Module    
LMZ35003 Order now 2.5     7     50     2.5     15     Adjustable     EMI Tested
Enable
Frequency Synchronization
Power Good
Remote Sense
Tracking    
0.7     1     41B1QFN: 99 mm2: 9 x 11 (B1QFN | 41)     1000     300     400     Buck
Inverting Buck-Boost    
-40 to 85     85     B1QFN | 41     Module    
LMZ36002 Order now 2     4.5     60     2.5     7.5     Adjustable     EMI Tested
Enable
Frequency Synchronization
Light Load Efficiency
Power Good
Remote Sense    
0.6     1     43B3QFN: 100 mm2: 10 x 10 (B3QFN | 43)     1000     200     500     Buck
Inverting Buck-Boost
Synchronous Buck    
-40 to 105     95     B3QFN | 43     Module    
LMZM33603 Order now 3     4     36     1     18     Fixed     EMI Tested
Enable
Frequency Synchronization
Power Good    
8.5     1     18B2QFN: 63 mm2: 7 x 9 (B2QFN | 18)     1200     200     400     Buck
Inverting Buck-Boost
Synchronous Buck    
-40 to 105     90     B2QFN | 18     Module