TPS82695

TPS82690 TPS82695 TPS82697 www.ti.com SLVSA66B – JUNE 2011 – REVISED FEBRUARY 2012 500-mA, HIGH-EFFICIENCY MicroSiP™ STEP-DOWN CONVERTER (PROFILE <1mm) Check for Samples: TPS82690, TPS82695, TPS82697 FEATURES 1 2 Total Solution Size <6.7 mm2 95% Efficiency at 4MHz Operation 24μA Quiescent Current High Duty-Cycle Operation Best in Class Load and Line Transient ±2% Total DC Voltage Accuracy Automatic PFM/PWM Mode Switching Low Ripple Light-Load PFM Mode Excellent AC Load Regulation Internal Soft Start, 130-µs Start-Up Time Integrated Active Power-Down Sequencing (Optional) Current Overload and Thermal Shutdown Protection Sub 1-mm Profile Solution APPLICATIONS LDO Replacement Cell Phones, Smart-Phones PoL Applications TPS82690SIP VBAT 3.25 V .. 4.35 V CI DC/DC Converter L VIN SW GND FB ENABLE EN MODE VOUT 2.85 V @ 500mA CO MODE SELECTION GND Figure 1. Typical Application DESCRIPTION The TPS8269xSIP device is a complete 500mA, DC/DC step-down power supply intended for low-power applications. Included in the package are the switching regulator, inductor and input/output capacitors. No additional components are required to finish the design. The TPS8269xSIP is based on a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. The MicroSIP™ DC/DC converter operates at a regulated 4-MHz switching frequency and enters the power-save mode operation at light load currents to maintain high...