LMZ12003 3A SIMPLE SWITCHER® Power Module with 20V Maximum Input Voltage | TI.com

LMZ12003 (ACTIVE)

3A SIMPLE SWITCHER® Power Module with 20V Maximum Input Voltage

 

Description

The LMZ12003 SIMPLE SWITCHER® power module is an easy-to-use step-down DC-DC solution capable of driving up to 3-A load with exceptional power conversion efficiency, line and load regulation, and output accuracy. The LMZ12003 is available in an innovative package that enhances thermal performance and allows for hand or machine soldering.

The LMZ12003 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 LMZ12003 only requires three external resistors and four external capacitors to complete the power solution. The LMZ12003 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 this 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 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
  • Electrical Specifications
    • 18-W Maximum Total Power Output
    • Up to 3-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%
  • Performance Benefits
    • 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
    • Passes 10-V/m Radiated Immunity EMI Test
      Standard EN61000 4-3

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

WEBENCH® Designer LMZ12003

  Min   Max Range
Vin  V 4.5 to 20.0V
Vout  V 0.8 to 6V
Iout  A ≤ 3A
Ambient Temp  °C -40 to 125°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 Rating Type
LMZ12003 Order now 3     4.5     20     0.8     6     Adjustable     EMI Tested
Enable
Tracking    
1     1     7TO-PMOD: 140 mm2: 13.77 x 10.16 (TO-PMOD | 7)     1000     200     800     Buck
Synchronous Buck    
-40 to 125     92.5     TO-PMOD | 7     Catalog     Module    
LMZ12001 Order now 1     4.5     20     0.8     6     Adjustable     EMI Tested
Enable
Tracking    
1     1     7TO-PMOD: 140 mm2: 13.77 x 10.16 (TO-PMOD | 7)     1000     200     800     Buck
Synchronous Buck    
-40 to 125     92.5     TO-PMOD | 7     Catalog     Module    
LMZ12001EXT Order now 1     4.5     20     0.8     6     Adjustable     EMI Tested
Enable
Tracking    
1     1     7TO-PMOD: 140 mm2: 13.77 x 10.16 (TO-PMOD | 7)     1000     200     800     Buck
Synchronous Buck    
-55 to 125     85     TO-PMOD | 7     Catalog     Module    
LMZ12002 Order now 2     4.5     20     0.8     6     Adjustable     EMI Tested
Enable
Tracking    
1     1     7TO-PMOD: 140 mm2: 13.77 x 10.16 (TO-PMOD | 7)     1000     200     800     Buck
Synchronous Buck    
-40 to 125     92.5     TO-PMOD | 7     Catalog     Module    
LMZ12003EXT Order now 3     4.5     20     0.8     6