This user’s guide describes the characteristics, operation, and use of the TPS8269xEVM-207 evaluation
module (EVM). The TPS8269xEVM-207 is a fully assembled and tested platform for evaluating the
performance of the TPS8269xSIP high-frequency, synchronous, step-down DC-DC converters optimized
for battery-powered portable applications. This document includes schematic diagrams, a printed circuit
board (PCB) layout, bill of materials, and test data. Throughout this document, the abbreviations EVM and
TPS8269xEVM and the term evaluation module are synonymous with the TPS8269xEVM-207 unless
otherwise noted.
0.1
Introduction
The TPS8269xSIP device family is a high-frequency, synchronous, step-down DC-DC converters
optimized for battery-powered portable applications. Intended for low-power applications, the
TPS8269xSIP supports up to 500mA or 800mA and all TPS8269xSIP devices allow the use of low-cost
chip inductors and capacitors. With a wide input voltage range of 2.3 V to 4.8 V, the devices support
applications powered by lithium-ion (Li-Ion) batteries with extended voltage ranges. Different fixed voltage
output versions of the TPS8269xSIP are available. These converters operate at a regulated 3-MHz
switching frequency and enter a power-save mode operation under light load currents in order to maintain
high efficiency over the entire load current range. A pulse frequency modulation (PFM) mode extends the
battery life by reducing the quiescent current to 23
μ
A (typ) during light load operation.
0.1.1 Features
•
Input Voltage Range: 2.3 V up to 4.8 V
•
Fixed Output Voltages
•
Up to 800-mA Output Current
•
Sub 1-mm Profile Solution
•
3-MHz Regulated Frequency Operation
•
Current Overload and Thermal Shutdown (Optional)
•
Total Solution Size: < 6.7 mm
2
•
Low Ripple Light-Load PFM Mode
0.1.2 Applications
•
LDO Replacement
•
Cell Phones, Smart-Phones
•
PoL Applications
0.1.3 EVM Ordering Options
provides the ordering information for the various EVM options.
Table 0-1. Ordering Information
Orderable EVM Number
Device Part Number
Output Voltage
Maximum Output Current
TPS82693EVM-207
TPS82693
2.85 V
800 mA
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4
List of Tables
SLVU802 – October 2012
Copyright © 2012, Texas Instruments Incorporated
