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TPS61031RSA Datasheet(PDF) 1 Page - Texas Instruments |
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TPS61031RSA Datasheet(HTML) 1 Page - Texas Instruments |
1 / 28 page Actual Size (5,0 mm x 6,4 mm) Actual Size (4,15 mm x 4,15 mm) www.ti.com FEATURES DESCRIPTION APPLICATIONS SW C1 10 µF L1 6.8 µH R1 R2 VBAT VOUT FB C2 2.2 µF C3 220 µF LBO PGND LBI SYNC EN GND TPS6103x e.g. 5 V up to 1000 mA Low Battery Comparator Output R3 R4 R6 1.8 V to 5 V Input TPS61030 TPS61031, TPS61032 SLUS534D – SEPTEMBER 2002 – REVISED APRIL 2004 96% EFFICIENT SYNCHRONOUS BOOST CONVERTER WITH 4A SWITCH • 96% Efficient Synchronous Boost Converter The TPS6103x devices provide a power supply With 1000-mA Output Current From 1.8-V solution for products powered by either a one-cell Input Li-Ion or Li-polymer, or a two to three-cell alkaline, NiCd or NiMH battery. The converter generates a • Device Quiescent Current: 20-µA (Typ) stable output voltage that is either adjusted by an • Input Voltage Range: 1.8-V to 5.5-V external resistor divider or fixed internally on the chip. • Fixed and Adjustable Output Voltage Options It provides high efficient power conversion and is Up to 5.5-V capable of delivering output currents up to 1 A at 5 V at a supply voltage down to 1.8 V. The implemented • Power Save Mode for Improved Efficiency at boost converter is based on a fixed frequency, Low Output Power pulse-width- modulation (PWM) controller using a • Low Battery Comparator synchronous rectifier to obtain maximum efficiency. • Low EMI-Converter (Integrated Antiringing At low load currents the converter enters Power Save mode to maintain a high efficiency over a wide load Switch) current range. The Power Save mode can be dis- • Load Disconnect During Shutdown abled, forcing the converter to operate at a fixed • Over-Temperature Protection switching frequency. It can also operate synchronized • Available in a Small 4 mm x 4 mm QFN-16 or to an external clock signal that is applied to the SYNC pin. The maximum peak current in the boost in a TSSOP-16 Package switch is limited to a value of 4500 mA. The converter can be disabled to minimize battery • All Single Cell Li or Dual Cell Battery drain. During shutdown, the load is completely dis- Operated Products as MP-3 Player, PDAs, and connected from the battery. A low-EMI mode is Other Portable Equipment implemented to reduce ringing and, in effect, lower radiated electromagnetic energy when the converter enters the discontinuous conduction mode. The device is packaged in a 16-pin QFN package measuring 4 mm x 4 mm (RSA) or in a 16-pin TSSOP PowerPAD™ package (PWP). 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. PowerPAD is a trademark of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 2002–2004, 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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