LMZ22008 8A SIMPLE SWITCHER® Power Module with 20V Maximum Input Voltage and Current Sharing | TI.com

LMZ22008 (ACTIVE)

8A SIMPLE SWITCHER® Power Module with 20V Maximum Input Voltage and Current Sharing

 

Description

The LMZ22008 SIMPLE SWITCHER® power module is an easy-to-use step-down DC-DC solution capable of driving up to 8-A load. The LMZ22008 is available in an innovative package that enhances thermal performance and allows for hand or machine soldering.

The LMZ22008 can accept an input voltage rail between 6 V and 20 V and deliver an adjustable and highly accurate output voltage as low as 0.8 V. The LMZ22008 only requires two external resistors and external capacitors to complete the power solution.

The LMZ22008 is a reliable and robust design with the following protection features: thermal shutdown, programmable input undervoltage lockout, output overvoltage protection, short circuit protection, output current limit, and allows start-up into a prebiased output.

The sync input allows synchronization over the 314- to 600-kHz switching frequency range and up to 6 modules can be connected in parallel for higher load currents.

Features

  • Integrated Shielded Inductor
  • Simple PCB Layout
  • Frequency Synchronization Input (350 kHz to 600
    kHz)
  • Current Sharing Capability
  • Flexible Start-up Sequencing Using External
    Soft-Start, Tracking and Precision Enable
  • Protection Against Inrush Currents and Faults
    such as Input UVLO and Output Short Circuit
  • Junction Temperature Range –40°C to 125°C
  • Single Exposed Pad and Standard Pinout for
    Easy Mounting and Manufacturing
  • Fully Enabled for WEBENCH® Power
    Designer
  • Pin Compatible With LMZ22010/06,
    LMZ12010/08/06, LMZ23610/08/06, and
    LMZ13610/08/06
  • Electrical Specifications
    • 40-W Maximum
      Total Output Power
    • Up to 8-A Output Current
    • Input Voltage Range 6 V to 20 V
    • Output Voltage Range 0.8 V to 6 V
    • Efficiency up to 92%
  • Performance Benefits
    • High Efficiency Reduces System Heat
      Generation
    • Low Radiated Emissions (EMI) Tested
      to EN55022(1)
    • Only 7 External Components
    • Low Output Voltage Ripple
    • No External Heat Sink Required
    • Simple Current Sharing for Higher Current
      Applications

View more

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
LMZ22008 LMZ12008 LMZ12010 LMZ22010
8     8     10     10    
6     6     6     6    
20     20     20     20    
0.8     0.8     0.8     0.8    
6     6     6     6    
Adjustable     Adjustable     Adjustable     Adjustable    
Current Sharing
EMI Tested
Enable
Frequency Synchronization
Tracking    
EMI Tested
Enable
Tracking    
EMI Tested
Enable
Tracking    
Current Sharing
EMI Tested
Enable
Frequency Synchronization
Tracking    
3     3     1     3    
1     1     1     1    
See datasheet (PFM)     See datasheet (PFM)     See datasheet (PFM)     See datasheet (PFM)    
600     404     404     404    
350     314     314     314    
359     359     359     359    
Buck
Synchronous Buck    
Buck
Synchronous Buck    
Buck
Synchronous Buck    
Buck
Synchronous Buck    
-40 to 85     -40 to 85     -40 to 85     -40 to 85    
85     85     85     85    
PFM | 11     PFM | 11     PFM | 11     PFM | 11    
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 LMZ22008

  Min   Max Range
Vin  V 6.0 to 20.0V
Vout  V 0.8 to 6V
Iout  A ≤ 8A
Ambient Temp  °C -40 to 125°C