Datasheet
LMZ12001
www.ti.com
SNVS651G –JANUARY 2010–REVISED OCTOBER 2013
LMZ12001 1A SIMPLE SWITCHER® Power Module with 20V Maximum Input Voltage
Check for Samples: LMZ12001
1
KEY FEATURES
ELECTRICAL SPECIFICATIONS
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• Integrated Shielded Inductor
• 6W Maximum Total Power Output
• Simple PCB Layout
• Up to 1A Output Current
• Flexible Startup Sequencing Using External
• Input Voltage Range 4.5V to 20V
Soft-start Capacitor and Precision Enable
• Output Voltage Range 0.8V to 6V
• Protection Against Inrush Currents and Faults
• Efficiency up to 92%
Such as Input UVLO and Output Short Circuit
• -40°C to 125°C Junction Temperature Range
PERFORMANCE BENEFITS
• Single Exposed Pad and Standard Pinout for
• Operates at High Ambient Temperature with
Easy Mounting and Manufacturing
no Thermal Derating
• Fast Transient Response for FPGAs and
• High Efficiency Reduces System Heat
ASICs
Generation
• Low Output Voltage Ripple
• Low Radiated Emissions (EMI) Complies with
• Pin-to-pin Compatible Family:
EN55022 Class B Standard
– LMZ14203/2/1 (42V max 3A, 2A, 1A)
• Low External Component Count
– LMZ12003/2/1 (20V max 3A, 2A, 1A)
• Fully Webench® Power Designer Enabled
DESCRIPTION
The LMZ12001 SIMPLE SWITCHER® power module
APPLICATIONS
is an easy-to-use step-down DC-DC solution capable
of driving up to 1A load with exceptional power
• Point of Load Conversions from 5V and 12V
conversion efficiency, line and load regulation, and
Input Rail
output accuracy. The LMZ12001 is available in an
• Time Critical Projects
innovative package that enhances thermal
• Space Constrained High Thermal Requirement
performance and allows for hand or machine
Applications
soldering.
• Negative Output Voltage Applications
The LMZ12001 can accept an input voltage rail
(See AN-2027)
between 4.5V and 20V and deliver an adjustable and
highly accurate output voltage as low as 0.8V. The
LMZ12001 only requires three external resistors and
four external capacitors to complete the power
solution. The LMZ12001 is a reliable and robust
design with the following protection features: thermal
shutdown, input under-voltage lockout, output over-
voltage protection, short-circuit protection, output
current limit, and allows startup into a pre-biased
output. A single resistor adjusts the switching
frequency up to 1 MHz.
Figure 1. Easy To Use PFM 7 Pin Package
10.16 x 13.77 x 4.57 mm (0.4 x 0.542 x 0.18 in)
θ
JA
= 20°C/W, θ
JC
= 1.9°C/W
RoHS Compliant
Peak Reflow Case Temp = 245°C
Power Module SMT Guidelines
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PRODUCTION DATA information is current as of publication date.
Copyright © 2010–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.