1 Features
1• Wide Input Voltage Range from 2.3 V to 5.5 V
• 6 MHz Regulated Frequency Operation
• 90% Efficiency at 6 MHz Operation
• 31 μA Quiescent Current
• Best in Class Load and Line Transient
• ±2% Total DC Voltage Accuracy
• Automatic PFM/PWM Mode Switching
• Low Ripple Light-Load PFM Mode
• Internal Soft Start, 120-μs Start-Up Time
• Integrated Active Power-Down Sequencing
(TPS62624 only)
• 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 < 12 mm2
• Available in a 6-Pin NanoFree™ (WCSP)
Regular and Ultra-Thin Packaging

2 Applications
• Mobile Phones, Smartphones
• WLAN, GPS and Bluetooth™ Applications
• DTV Tuner Applications
• DC/DC Micro Modules

3 Description
The TPS6262x device family provides high-frequency
synchronous step-down DC/DC converters optimized for battery-powered portable applications. Intended
for low-power applications, the TPS6262x devices
support up to 600 mA load current, and allow the use
of low cost chip inductor and capacitors.
With a wide input voltage range of 2.3 V to 5.5 V, the
devices support applications powered by Li-Ion batteries with extended voltage range. Different fixed
voltage output versions are available from 1.2 V to
2.3 V.
The TPS6262x devices operate at a regulated 6-MHz
switching frequency and enter the power-save mode
operation at light load currents to maintain high
efficiency over the entire load current range.
The pulse frequency modulation (PFM) mode extends
the battery life by reducing the quiescent current to
31 μA (typical) during light load and standby
operation. For noise-sensitive applications, the device can be forced into fixed frequency pulse width
modulation (PWM) mode by pulling the MODE pin
high.
The TPS6262x devices operate over a free air
temperature range of –40°C to 85°C. They are
available in a 6-pin chip-scale package (WCSP).