Texas Instruments AN-2166 LMZ10501 User Manual

AN-2166 LMZ10501 and LMZ10500 SIMPLE SWITCHER
1 Introduction
The LMZ10501 and LMZ10500 SIMPLE SWITCHER nano modules are easy-to-use DC-DC solutions
optimized for space-constrained applications. The LMZ10501 is capable of driving up to 1A load with
excellent power conversion efficiency, line and load regulation, and EMI performance. The LMZ10500 is a
650mA version module and is pin-to-pin compatible with the LMZ10501.
The LMZ10501 and LMZ10500 Evaluation Board is configured for 1.8V output voltage from 2.7V to 5.5V
input. The resistor voltage divider R
the V pin and provides additional soft start time. for component selection and device information
CON
details, see the device-specific data sheet. The board features additional component footprints for various
device enabling schemes and AC signal injection terminals for feedback loop measurements.
The evaluation board with its default Bill of Materials offers great EMI performance, complying with the EN
55022 Class B radiated emissions standard.
2 Board Specifications
• V = 2.7V to 5.5V
IN
• V = 1.8V (default setting)
OUT
• 1A max load (LMZ10501)
• 650mA max load (LMZ10500)
• 2MHz switching frequency
• 4 layers PCB with 1oz copper
• 4.3 x 4.3 cm (1700 x 1700 mil) PCB size
• Low radiated EMI (EN 55022 Class B compliant)
SIMPLE SWITCHER is a registered trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
SNVA491B – August 2011 – Revised April 2013
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Nano Module Evaluation Board
and R set the output voltage. The external capacitor C
T B
AN-2166 LMZ10501 and LMZ10500 SIMPLE SWITCHER
Copyright © 2011–2013, Texas Instruments Incorporated
User's Guide
SNVA491B – August 2011 – Revised April 2013
® Nano Module
Evaluation Board
®
bypasses
VC
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