Datasheet

Introduction

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13 PWM Output Ripple ........................................................................................................ 9

14 TPS626xxEVM Component Placement (Top View) .................................................................. 10

15 TPS626xxEVM Top-Side Copper (Top View) ......................................................................... 11

16 TPS626xxEVM Bottom-Side Copper (Bottom View).................................................................. 12

1 Introduction

The TPS6261x, TPS6262x, and TPS6266x devices are series of high-frequency, synchronous, step-down

dc-dc converters optimized for battery-powered portable applications. Intended for low-power applications,

the TPS6261x, TPS6262x, and TPS6266x support up to 350-mA load current, and allow the use of

low-cost chip inductors and capacitors. With a wide input voltage range of 2.3 V to 5.5 V, the devices

support applications powered by lithium-ion (Li-Ion) batteries with extended voltage ranges. Different fixed

voltage output versions of the TPS6261x, TPS6262x, and TPS6266x are available from 1.2 V to 2.3 V.

These converters operate at a regulated 6-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

PFM mode extends the battery life by reducing the quiescent current to 31 µA (typ) during light load

operation.

1.1 Features

• Input voltage range: 2.3 V up to 5.5 V

• Fixed output voltages

• Up to 2.0-A output current

• 6-MHz regulated frequency operation

• Output capacitor discharge (optional)

• Total solution size: < 12 mm

1.2 Applications

• Cell phones, smart phones

• WLAN, GPS, and Bluetooth

applications

• DTV tuners

• DC/DC micro-modules

1.3 EVM Ordering Options

Table 1 provides the ordering information for the various EVM options.

Table 1. Ordering Information

Maximum Output Device Specific

Orderable EVM Number Device Part Number Output Voltage Current Feature

TPS62615EVM-419 TPS62615 1.2 V 350 mA

TPS62621EVM-419 TPS62621 1.8 V 600 mA

TPS62622EVM-419 TPS62622 1.5 V 600 mA

TPS62624EVM-419 TPS62624 1.2 V 600 mA Output capacitor

discharge

TPS62625EVM-419 TPS62625 1.2 V 600 mA

TPS62660EVM-419 TPS62660 1.8 V 1000 mA

TPS6261x/TPS6262x/TPS6266xEVM SLVU292A–April 2010–Revised April 2010