LMZ12002 SIMPLE SWITCHER® 4.5V to 20V, 2A Power Module in Leaded Surface Mount TO Package | TI.com

LMZ12002 (ACTIVE)

SIMPLE SWITCHER® 4.5V to 20V, 2A Power Module in Leaded Surface Mount TO Package

 

Description

The LMZ12002 SIMPLE SWITCHER® power module is an easy-to-use step-down DC-DC solution capable of driving up to 2-A load with exceptional power conversion efficiency, line and load regulation, and output accuracy. The LMZ12002 is available in an innovative package that enhances thermal performance and allows for hand or machine soldering.

The LMZ12002 can accept an input voltage rail between 4.5 V and 20 V, and can deliver an adjustable and highly accurate output voltage as low as 0.8 V. The LMZ12002 only requires three external resistors and four external capacitors to complete the power solution. The LMZ12002 is a reliable and robust design with the following protection features: thermal shutdown, input undervoltage lockout, output overvoltage protection, short circuit protection, output current limit, and the device allows start-up into a prebiased output. A single resistor adjusts the switching frequency up to 1 MHz.

Features

  • Integrated Shielded Inductor
  • Simple PCB Layout
  • Flexible Start-up Sequencing Using External Soft-
    Start Capacitor 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
  • Fast Transient Response for FPGAs and ASICs
  • Low Output Voltage Ripple
  • Pin-to-Pin Compatible With Family Devices:
    • LMZ14203/2/1 (42-V Maximum 3 A, 2 A, 1 A)
    • LMZ12003/2/1 (20-V Maximum 3 A, 2 A, 1 A)
  • Fully WEBENCH® Power Designer Enabled
  • Performance Benefits
    • 12-W Maximum Total Power Output
    • Up to 2-A Output Current
    • Input Voltage Range 4.5 V to 20 V
    • Output Voltage Range 0.8 V to 6 V
    • Efficiency up to 92%
  • Electrical Specifications
    • Operates at High Ambient Temperature With
      No Thermal Derating
    • High Efficiency Reduces System Heat
      Generation
    • Low Radiated Emissions (EMI) Tested to
      EN55022 Class B Standard
    • Low External Component Count

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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
LMZ12002 LMZ12001 LMZ12001EXT LMZ12003 LMZ12003EXT
2     1     1     3     3    
4.5     4.5     4.5     4.5     4.5    
20     20     20     20     20    
0.8     0.8     0.8     0.8     0.8    
6     6     6     6     6    
Adjustable     Adjustable     Adjustable     Adjustable     Adjustable    
EMI Tested
Enable
Tracking    
EMI Tested
Enable
Tracking    
EMI Tested
Enable
Tracking    
EMI Tested
Enable
Tracking    
EMI Tested
Enable
Tracking    
1     1     1     1     1    
1     1     1     1     1    
7TO-PMOD: 140 mm2: 13.77 x 10.16 (TO-PMOD | 7)     7TO-PMOD: 140 mm2: 13.77 x 10.16 (TO-PMOD | 7)     7TO-PMOD: 140 mm2: 13.77 x 10.16 (TO-PMOD | 7)     7TO-PMOD: 140 mm2: 13.77 x 10.16 (TO-PMOD | 7)     7TO-PMOD: 140 mm2: 13.77 x 10.16 (TO-PMOD | 7)    
1000     1000     1000     1000     1000    
200     200     200     200     200    
800     800     800     800     800    
Buck
Synchronous Buck    
Buck
Synchronous Buck    
Buck
Synchronous Buck    
Buck
Synchronous Buck    
Buck
Synchronous Buck    
-40 to 125     -40 to 125     -55 to 125     -40 to 125     -55 to 125    
92.5     92.5     85     92.5     85    
TO-PMOD | 7     TO-PMOD | 7     TO-PMOD | 7     TO-PMOD | 7     TO-PMOD | 7    
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 LMZ12002

  Min   Max Range
Vin  V 4.5 to 20.0V
Vout  V 0.8 to 6V
Iout  A ≤ 2A
Ambient Temp  °C -40 to 125°C


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