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TPS62690YFFT Datasheet(PDF) 1 Page - Texas Instruments |
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TPS62690YFFT Datasheet(HTML) 1 Page - Texas Instruments |
1 / 28 page CSP-6 VIN SW FB MODE EN GND VOUT 2.85 V @ 500mA C 4.7 F I m TPS62690 L 1.0 H m C 4.7 F O m VIN 3.15 V .. 4.8 V 50 55 60 65 70 75 80 85 90 95 100 0.1 1 10 100 1000 0 15 30 45 60 75 90 105 120 135 150 I - Load Current - mA O V = 3.6 V, V = 2.85 V I O Efficiency PFM/PWM Operation Power Loss PFM/PWM Operation 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 1 FEATURES APPLICATIONS 2 • 95% Efficiency at 4MHz Operation • LDO Replacement • 19 μA Quiescent Current • Cell Phones, Smart-Phones • 4MHz Regulated Frequency Operation • Portable Audio, Portable Media • High Duty-Cycle Operation • DC/DC Micro Modules • ±2% Total DC Voltage Accuracy DESCRIPTION • Best in Class Load and Line Transient The TPS6269x device is a high-frequency • Excellent AC Load Regulation synchronous step-down dc-dc converter optimized for • Low Ripple Light-Load PFM Mode battery-powered portable applications. Intended for low-power applications, the TPS6269x supports up to • ≥40dB VIN PSRR (1kHz to 10kHz) 600-mA load current, and allows the use of low cost • Internal Soft Start, 250- μs Start-Up Time chip inductor and capacitors. • Integrated Active Power-Down Sequencing The device is ideal for mobile phones and similar (Optional) portable applications powered by a single-cell Li-Ion • Current Overload and Thermal Shutdown battery. Different fixed voltage output versions are Protection available from 2.2V to 2.9V. • Three Surface-Mount External Components The TPS6269x operates at a regulated 4-MHz Required (One 2012 MLCC Inductor, Two 0402 switching frequency and enters the power-save mode Ceramic Capacitors) operation at light load currents to maintain high • Complete Sub 1-mm Component Profile efficiency over the entire load current range. Solution The PFM mode extends the battery life by reducing • Total Solution Size <12 mm2 the quiescent current to 19 μA (typ) during light load operation. For noise-sensitive applications, the device • Available in a 6-Pin NanoFree ™ (CSP) can be forced into fixed frequency PWM mode by pulling the MODE pin high. This feature, combined with high PSRR and AC load regulation performance, make this device suitable to replace a linear regulator to obtain better power conversion efficiency. Figure 2. Smallest Solution Size Application Figure 1. Efficiency vs. Load Current 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 NanoFree is a trademark of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 2011–2012, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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