The TPS6260x device is a high-frequency synchronous step-downdc/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 30μA (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 1μA.
The TPS6260x is available in an 6-pin chip-scale package (CSP).
Feature
- 89% Efficiency at 6MHzOperation
- Output Current Up to 500mA
- Wide VIN 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
- 30μA Quiescent Current
- 35ns Minimum On-Time
- Internal Soft Start, <200-μs 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-PinNanoFree (CSP)Packaging
- APPLICATIONS
- Cell Phones, Smart-Phones
- PDAs, Pocket PCs
- WLAN andBluetooth Applications
- DVB-H Tuner Applications
- Portable Hard Disk Drives
- DC/DC Micro Modules
