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1FEATURES

23· 89% Efficiency at 6MHz Operation

· Output Current Up to 500mA

· Wide V IN Range From 2.3V to 5.5V

· 6MHz Regulated Frequency Operation

· Best in Class Load and Line Transient

· ±1.5% Total DC Voltage Accuracy

· Automatic PFM/PWM Mode Switching

· 30mA Quiescent Current

· 35ns Minimum On-Time

· Internal Soft Start, <200-ms Start-Up Time

· Current Overload and Thermal Shutdown

Protection

· Three Surface-Mount External Components

Required (One MLCC Inductor, Two Ceramic

Capacitors)

· Complete Sub 1-mm Component Profile

Solution

· Total Solution Size <13 mm2

· Available in a 6-Pin NanoFree? (CSP)

Packaging

APPLICATIONS

· Cell Phones, Smart-Phones

· PDAs, Pocket PCs

· WLAN and Bluetooth? Applications

· DVB-H Tuner Applications

· Portable Hard Disk Drives

· DC/DC Micro Modules

DESCRIPTION

The TPS6260x device is a high-frequency

synchronous step-down dc-dc converter optimized for

battery-powered portable applications. Intended for

low-power applications, the TPS6260x supports up to

500mA load current, and allows the use of low cost chip inductor and capacitors.

With a wide input voltage range of 2.3V to 5.5V, the device supports applications powered by Li-Ion

batteries with extended voltage range. Different fixed

voltage output versions are available from 1V to 2.5V.

The TPS6260x operates at a regulated 6-MHz

switching frequency and enters the power-save mode

operation at light load currents to maintain high

efficiency over the entire load current range.

The PFM mode extends the battery life by reducing

the quiescent current to 30mA (typ) during light load

and standby operation. For noise-sensitive

applications, the device can be forced into fixed

frequency PWM mode by pulling the MODE pin high.

In the shutdown mode, the current consumption is

reduced to less than 1mA.

The TPS6260x is available in an 6-pin chip-scale

package (CSP).