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TPS62321YEDR Datasheet(PDF) 1 Page - Texas Instruments |
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TPS62321YEDR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 31 page QFN-10 CSP-8 www.ti.com FEATURES DESCRIPTION APPLICATIONS VIN SW TPS62303YZD ADJ C1 C2 VOUT EN MODE/SYNC FB A2 B2 C1 B1 D1 C2 D2 GND A1 4.7 µF VI 2.7 V . . 6 V 4.7 µF VO 1.8 V/500 mA L1 1 µH 0 10 20 30 40 50 60 70 80 90 100 0.1 1 10 100 1 k VI = 3.6 V, VO = 1.8 V L = 2.2 µH, CO = 4.7 µF IO − Load Current − mA TPS62300, TPS62301, TPS62302 TPS62303, TPS62305, TPS62311 TPS62313, TPS62320, TPS62321 SLVS528B – JULY 2004 – REVISED JUNE 2005 500-mA, 3-MHz SYNCHRONOUS STEP-DOWN CONVERTER IN CHIP SCALE PACKAGING • Up to 93% Efficiency at 3-MHz Operation The TPS623xx device is a high-frequency synchron- • Up to 500-mA Output Current at VI = 2.7 V ous step-down dc-dc converter optimized for • 3-MHz Fixed Frequency Operation battery-powered portable applications. Intended for • Best in Class Load and Line Transient low-power applications, the TPS623xx supports up to 500-mA load current and allows the use of tiny, low • Complete 1-mm Component Profile Solution cost chip inductor and capacitors. • -0.5% / +1.3% PWM DC Voltage Accuracy Over The device is ideal for mobile phones and similar Temperature portable applications powered by a single-cell Li-Ion • 35-ns Minimum On-Time battery or by 3-cell NiMH/NiCd batteries. With an • Power-Save Mode Operation at Light Load output voltage range from 5.4 V down to 0.6 V, the Currents device supports the low-voltage TMS320™ DSP family, processors in smart-phones, PDAs as well as • Fixed and Adjustable Output Voltage notebooks, and handheld computers. • Only 86- µA Quiescent Current The TPS62300 operates at 3-MHz fixed switching • 100% Duty Cycle for Lowest Dropout frequency and enters the power-save mode operation • Synchronizable On the Fly to External at light load currents to maintain high efficiency over Clock Signal the entire load current range. For low noise appli- • Integrated Active Power-Down Sequencing cations, the device can be forced into fixed frequency (TPS6232x only) PWM mode by pulling the MODE/SYNC pin high. The device can also be synchronized to an external clock • Available in a 10-Pin QFN (3 x 3 mm) and signal in the range of 3 MHz. In the shutdown mode, Highly Reliable 8-Pin NanoFree™ and the current consumption is reduced to less than 1 µA. NanoStar™ (CSP) Packaging The TPS623xx is available in a 10-pin leadless package (3 x 3 mm QFN) and an 8-pin chip-scale package (CSP). • Cell Phones, Smart-Phones • WLAN and Bluetooth™ Applications • Micro DC-DC Converter Modules • PDAs, Pocket PCs • USB-Based DSL Modems • Digital Cameras Figure 1. Smallest Solution Size Application (Fixed Output Voltage) Figure 2. Efficiency vs Load Current 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. NanoFree, NanoStar, TMS320 are trademarks of Texas Instruments. Bluetooth is a trademark of Bluetooth SIG, Inc. PowerPAD is a trademark of Texas Instsruments. UNLESS OTHERWISE NOTED this document contains PRO- Copyright © 2004–2005, Texas Instruments Incorporated DUCTION DATA information current as of publication date. Prod- ucts conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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