TPS62690

CSP-6 TPS62690 TPS62691 TPS62697 www.ti.com SLVS965B – MARCH 2011 – REVISED JANUARY 2012 500-mA / 600-mA, 4-MHz HIGH-EFFICIENCY STEP-DOWN CONVERTER IN CHIP SCALE PACKAGING Check for Samples: TPS62690, TPS62691, TPS62697 FEATURES 1 2 95% Efficiency at 4MHz Operation 19μA Quiescent Current 4MHz Regulated Frequency Operation High Duty-Cycle Operation ±2% Total DC Voltage Accuracy Best in Class Load and Line Transient Excellent AC Load Regulation Low Ripple Light-Load PFM Mode ≥40dB VIN PSRR (1kHz to 10kHz) Internal Soft Start, 250-μs Start-Up Time Integrated Active Power-Down Sequencing (Optional) Current Overload and Thermal Shutdown Protection Three Surface-Mount External Components Required (One 2012 MLCC Inductor, Two 0402 Ceramic Capacitors) Complete Sub 1-mm Component Profile Solution Total Solution Size <12 mm2 Available in a 6-Pin NanoFree™ (CSP) Efficiency - % Power Loss - mW 100 VI = 3.6 V, 95 VO = 2.85 V 90 Efficiency 85 PFM/PWM Operation 80 75 Power Loss 70 PFM/PWM Operation 65 60 55 50 0.1 1 10 100 IO - Load Current - mA 150 135 120 105 90 75 60 45 30 15 0 1000 Figure 1. Efficiency vs. Load Current APPLICATIONS LDO Replacement Cell Phones, Smart-Phones Portable Audio, Portable Media DC/DC Micro Modules DESCRIPTION The TPS6269x device is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. Intended for low-power applications, the TPS6269x supports up to ...