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TPS62619YFDT Fiches technique(PDF) 1 Page - Texas Instruments |
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TPS62619YFDT Fiches technique(HTML) 1 Page - Texas Instruments |
1 / 27 page CSP-6 0 10 20 30 40 50 60 70 80 90 100 0.1 1 10 100 1000 I -LoadCurrent-mA O 0 20 40 60 80 100 120 140 160 180 200 V =3.6V, V =1.8V I O Efficiency PFM/PWMOperation PowerLoss PFM/PWMOperation VIN SW FB MODE EN GND VOUT 1.8V@350mA C 2.2 F I m TPS6261x L 0.47 H m C 4.7 F O m VBAT 2.9V..5.5V TPS62619, TPS62612 TPS62615, TPS62616 www.ti.com SLVS936A – NOVEMBER 2009 – REVISED MARCH 2010 350-mA, 6-MHz HIGH-EFFICIENCY STEP-DOWN CONVERTER IN LOW PROFILE CHIP SCALE PACKAGING (HEIGHT < 0.4mm) Check for Samples: TPS62619, TPS62612, TPS62615, TPS62616 1 FEATURES 23 • 90% Efficiency at 6MHz Operation DESCRIPTION • 31mA Quiescent Current The TPS6261x device is a high-frequency • Wide VIN Range From 2.3V to 5.5V synchronous step-down dc-dc converter optimized for • 6MHz Regulated Frequency Operation battery-powered portable applications. Intended for low-power applications, the TPS6261x supports up to • Best in Class Load and Line Transient 350-mA load current, and allows the use of low cost • ±2% Total DC Voltage Accuracy chip inductor and capacitors. • Automatic PFM/PWM Mode Switching With a wide input voltage range of 2.3V to 5.5V, the • Low Ripple Light-Load PFM Mode device supports applications powered by Li-Ion • >50dB VIN PSRR (1kHz to 10kHz) batteries with extended voltage range. Different fixed voltage output versions are available from 1.2V to • Internal Soft-Start, 100-ms Start-Up Time 2.3V. • Integrated Active Power-Down Sequencing (Optional) The TPS6261x operates at a regulated 6-MHz switching frequency and enters the power-save mode • Three Surface-Mount External Components operation at light load currents to maintain high Required (One 0603 MLCC Inductor, Two 0402 efficiency over the entire load current range. Ceramic Capacitors) The PFM mode extends the battery life by reducing • Complete Sub 0.4-mm Component Profile the quiescent current to 31mA (typ) during light load Solution operation. For low-frequency noise-sensitive • Total Solution Size <10 mm2 applications, the device can be forced into fixed • Available in a 6-Pin NanoFree™ (CSP) frequency PWM mode by pulling the MODE pin high. Ultra-Thin Packaging These features, combined with high PSRR and AC load regulation performance, make this device suitable to replace a linear regulator to obtain better APPLICATIONS power conversion efficiency. • Cell Phones, Smart-Phones The TPS6261x is available in an 6-pin thin chip-scale • WLAN, GPS and Bluetooth™ Applications package (CSP, 0.4mm max. height). • DTV Tuner Applications • DC/DC Micro Modules l l Figure 2. Efficiency vs. Load Current Figure 1. Smallest Solution Size Application 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. 3 Bluetooth is a trademark of Bluetooth SIG, Inc. UNLESS OTHERWISE NOTED this document contains Copyright © 2009–2010, Texas Instruments Incorporated PRODUCTION DATA information current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
Numéro de pièce similaire - TPS62619YFDT |
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Description similaire - TPS62619YFDT |
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