1FEATURES
2• 86% Efficiency at 6 MHz Operation
• 38μA Quiescent Current
• Wide VIN Range From 2.3 V to 5.5 V
• 6MHz Regulated Frequency Operation
• Best-In-Class Load and Line Transient
• ±2% PWM DC Voltage Accuracy
• Automatic PFM/PWM Mode Switching
• Low Ripple Light-Load PFM
• I2C Compatible Interface up to 3.4 Mbps
• Pin-Selectable Output Voltage (VSEL)
• Internal Soft-Start, <150-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 <13mm2
• Available in a 9-Pin NanoFree™ (CSP)
Packaging

APPLICATIONS
• SmartReflex™ Compliant Power Supply
• OMAP™ Application Processor Core Supply
• Cell Phones, Smart-Phones
• Micro DC-DC Converter Modules

DESCRIPTION
The TPS6265x device is a high-frequency
synchronous step-down dc-dc converter optimized for
battery-powered portable applications. Intended for
low-power applications, the TPS6265x supports up to
800mA load current and allows the use of small, low
cost inductors and capacitors.
The device is ideal for mobile phones and similar
portable applications powered by a single-cell Li-Ion
battery. With an output voltage range adjustable via
I2C interface down to 0.75V, the device supports
low-voltage DSPs and processors core power
supplies in smart-phones and handheld computers.
The TPS6265x operates at a regulated 6MHz
switching frequency and enters the efficiency
optimized power-save mode operation at light load
currents to maintain high efficiency over the entire
load current range. In the shutdown mode, the
current consumption is reduced to less than 3.5μA.
The serial interface is compatible with Standard,
Fast/Fast Plus and High-Speed mode I2C
specification allowing transfers at up to 3.4 Mbps.
This communication interface is used for dynamic
voltage scaling with voltage steps down to 12.5mV,
for setting the output voltage or reprogramming the
mode of operation (PFM/PWM or Forced PWM) for
instance.
The TPS6265x is available in an 9-pin chip-scale
package (CSP).