TPS62600YFFR

TPS62601 Not Recommended for New Designs TPS62600 TPS62601 CSP-6 www.ti.com ...................................................................................................................................................................................................... SLVS678 – JUNE 2008 500-mA, 6-MHz SYNCHRONOUS STEP-DOWN CONVERTER IN CHIP SCALE PACKAGING FEATURES 1 • • • Cell Phones, Smart-Phones PDAs, Pocket PCs WLAN and Bluetooth™ Applications DVB-H Tuner Applications Portable Hard Disk Drives DC/DC Micro Modules TPS 6260x VIN 2.2 mF 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. EN 90 FB 70 MODE 180 160 VO 1.8 V/ 500 mA 140 120 100 50 40 Power Loss PFM/PWM Operation 80 60 30 40 20 CO 4.7 mF Figure 1. Smallest Solution Size Application (Fixed Output Voltage) Efficiency PFM/PWM Operation 60 10 GND 200 VI = 3.6 V, VO = 1.83 V 80 SW 0.47 mH CI 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. 100 L 2.3 V.. 5.5 V VI 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. The TPS6260x is available in an 6-pin chip-scale package (CSP). APPLICATIONS • • • • • • DESCRIPTION 0 0.1 Power Loss - mW • 89% Efficiency at 6MHz Operation 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,