 |
công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
|
|
công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
|
LM3248TMXNOPB bảng dữ liệu(PDF) 1 Page - Texas Instruments |
|
||||||||||||||||||||||||||||||
LM3248TMXNOPB bảng dữ liệu(HTML) 1 Page - Texas Instruments |
|
|
1 / 31 page  Apps Processor VCC_PA 1.8V Logic FB_ BUCK BOOST BUCK SW_ BUCK PVIN_ BUCK OUT_ BOOST SW_ BOOST SGND_ BOOST BYPASS CONTROL ENABLE BOOST_ GATE MODE PVIN_ BOOST DGND ACB SGND_ BUCK VDD_ BOOST VDD1_ BUCK VCON VDD2_ BUCK 1.5 H 1.0 H 10 F 10 F 10 F 1 F Low ESL VBATT 2.7V to 5.5V FB 1 nF ACB LM3248 www.ti.com SNVSA01A – JULY 2013 – REVISED SEPTEMBER 2013 LM3248 2.7 MHz, 2.5A Adjustable Boost-Buck DC/DC Converter with Boost and Active Current Assist and Analog Bypass (ACB) Check for Samples: LM3248 1 FEATURES DESCRIPTION The LM3248 is a PWM/PFM Boost-Buck DC/DC 2 • Output Voltage VOUT Adjustable from 0.4V to converter that provides efficient utilization of battery 4.0V (typ.) power over a wide voltage range. The device • Input Voltage Range VIN from 2.7V to 5.5V architecture is suitable for advanced RF front-end • Boost-Buck and Buck (Boost-Bypass) systems that demand dynamic voltage and current to support converged power amplifier architectures Operating Modes with Seamless Transition operating in 2G/3G/4G and 3GPP/LTE modes. For • 2.5A Load Current Capability example, the LM3248 is designed to produce higher • High Conversion Efficiency (> 90% typ.) output voltages while maintaining PFM mode as • High-Efficiency PFM/PWM Modes with required by some new reduced-power CMOS PAs. The extremely fast Boost-Buck function reduces RF Seamless Transition PA overhead power dissipation, extending battery talk • Very Fast Transient Response: 10 µs time. The device will operate at input voltage VIN • ACB Reduces Inductor Size Requirements range of 2.7V to 5.5V and an adjustable output • Dither to aid RX Band Noise Compliance voltage VOUT range of 0.4V to 4.0V at a maximum current load of 2.5A. APPLICATIONS The LM3248 is available in a 30-bump, lead-free thin DSBGA package. • Multi-mode 2G/3G/4G and 3GPP/LTE Smart- phones and Tablets • Hand-Held Radios • RF Mobile Devices Typical Application Diagram 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 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2013, 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. |
Số phần tương tự - LM3248TMXNOPB |
|
Mô tả tương tự - LM3248TMXNOPB |
|
|
Link URL |
| Chính sách bảo mật |
| ALLDATASHEET.VN |
| Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không? [ DONATE ] |
Alldatasheet là | Quảng cáo | Liên lạc với chúng tôi | Chính sách bảo mật | Trao đổi link | Tìm kiếm theo nhà sản xuất All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
Vietnamese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
