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June 2009 |
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Industry's Smallest 6-A, 17-V Step-Down DC/DC Converter with Integrated FETs: TPS54620 single-chip SWIFT™ point-of-load device for telecom and computing systems features a 60% smaller package than multi-chip converters (less than 195 mm²). The 1.6-MHz monolithic DC/DC converter supports input voltages from 4.5V to 17V, allowing it to manage space-constrained 5-V and 12-V point-of-load designs, such as a wireless base station or high-density server.
Resources:
Data sheet,
video,
SWIFT Quick Reference Card
- Integrates two high-efficiency MOSFETs (26mΩ and 19mΩ)
- Space-saving, thermally enhanced 3.5x3.5-mm QFN package
- Applications: High-density distributed power system, point-of-load regulation for DSPs, FPGAs, ASICs, and MCUs, telecom, computing, MicroTCA
TPS54620 Price (1ku): $ 1.95 |
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White LED Driver with Digital and PWM Brightness Control in 2x2mm Package: The TPS61160A and TPS61161A are designed for LCD backlighting in portable system applications. The devices operate from 2.7-V to 18-V input supplies and deliver an output voltage up to 38V. With its 40-V rated integrated switch FET, the TPS6116xA boost converter drives up to 10 LEDs in a series.
Resources:
Data sheet
- Converter runs at a 600-kHz fixed switching frequency to reduce output ripple, improve conversion efficiency, and allow use of small external components
- Default white LED current set with external sensor resistor Rset; feedback voltage regulated to 200mV
- Applications: Cell phones, portable media players, ultra-mobile devices, GPS receivers, white LED backlighting for media form factor display
TPS61161A Price (1ku): $ 0.80 |
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8-Pin, Continuous Conduction Mode (CCM) PFC Controller: Designed for low-cost PFC applications, the UCC28019A produces near unity power factor with little harmonic distortion. The controller accepts a wide universal input range and addresses power conversion applications in the 100W to >2kW range.
Resources:
Data sheet
- Brown-out, open-loop detection, soft over-current and other protection features
- Unique fail-safe feature prevents catastrophic failure if the ground pin and comp pin are shorted
- Applications: CCM boost power factor correction power converters, digital TV, home electronics, white goods, industrial electronics, server and desktop power supplies
UCC28019A Price (1ku): $ 0.75 |
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2.05-V to 6-V Input Voltage, 0.5-A Peak Iout, Synchronous Buck Converter in 1x1.5-mm SON: The TPS62230, a high-frequency, step-down DC/DC converter optimized for battery-powered portable applications, supports up to 500mA output current and allows the use of tiny and low-cost chip inductors. The device is well-suited for applications powered by Li-Ion batteries with extended voltage range.
Resources:
Data sheet
- Minimum input voltage (2.05V) allows operation from Li-primary or two alkaline batteries
- Fixed output voltage versions available from 1.2V to 2.5V
- Applications: LDO replacement, portable electronics, audio, low-power wireless
TPS62230 Price (1ku): $ 0.45 |
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Low Input-Voltage, Dual-Load Switch with Controlled Turn-On and Quick Output Discharge: The TPS22960 is a small, low-rON switch with two P-channel MOSFETs that can operate over an input voltage range of 1.62V to 5.5V. Each switch is controlled by an on/off input capable of interfacing directly with low-voltage control signals.
Resources:
Data sheet
- 85-Ω on-chip load resistor added for output quick discharge when switch is turned off
- Output rise time (slew-rate) internally controlled to avoid inrush current; can be slowed down using SR pin
- Applications: GPS, cell phones, smartphones, PDAs, portable instrumentation, MP3 players, portable media players
TPS22960 Price (1ku): $ 0.38 |
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4.5-V to 13.2-V Synchronous Buck Controller with High Current Gate Driver, 600kHz: The TPS51163 high-performance, cost-optimized, voltage-mode, fixed frequency buck controller provides compact and efficient operation. Supply input voltages range from 4.5V to 13.2V and output voltages from 0.8V to 9.5V without the need for a separate bias voltage.
Resources:
Data sheet
- Single-supply operation
- 10-pin SON thermally enhanced power pad package
- Applications: Server and desktop computer subsystem power supplies (MCH, IOCH, PCI, termination), distributed power supplies, general DC-DC converters
TPS51163 Price (1ku): $ 0.99 |
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5-V, 400mA, 4-MHz Step-Up DC/DC Converter: The TPS6124x highly efficient synchronous step-up DC/DC converter is optimized for products powered by either a three-cell alkaline, NiCd or NiMH, or a one-cell Li-Ion or Li-Polymer battery. Supporting output currents up to 450mA, the TPS61240 and TPS61241 have input valley current limits of 500mA and 600mA, respectively.
Resources:
Data sheet
- Wide VIN range from 2.3V to 5.5V
- Total DC output voltage accuracy of ±2% with 20mV ripple in power-save mode
- Applications: USB-OTG, portable HDMI, cell phones, smartphones, PDAs, pocket PCs, digital media players
TPS61240 Price (1ku): $ 0.80 |
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Automotive-Qualified, 3-A, 60-V, 2.2-MHz Step-Down DC/DC Converter with Low Iq, Voltage Supervision and Reset
TPS54362 Price (1ku): $ 2.75 |
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4.5-V to 24-V Input, High-Performance, Flexible, DCAP2™ Mode, Single Synchronous Buck Controller w/Internal 5-V LDO
TPS53114 Price (1ku): $ 1.20 |
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Fully Integrated, Switch-Mode, One-Cell Li-Ion Charger with Full USB Compliance and USB-OTG Support
bq24150 Price (1ku): $ 2.00 |
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SBS-Compliant Gas Gauge with Impedance Track™ Technology
bq20Z40 Price (1ku): $ 3.40 |
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Low-Power, Dual, 14-Bit, 250-MSPS ADC with CMOS or DDR LVDS Outputs: The ADS62P49 is a high-performance ADC with selectable parallel DDR LVDS or CMOS outputs packaged in a space-saving 9x9mm, 64-pin QFN package. Using an internal sample and hold, along with low-jitter clock buffer, the ADC supports high SNR and high SFDR at high input frequencies, greater than 70dB and 80dB, respectively, for IFs up to 250MHz.
Resources:
Data sheet,
video
- 1-dB to 6-dB gain control to improve SFDR performance at lower full-scale input ranges
- At lower sampling rates, ADC automatically operates at scaled-down power with no performance loss
- Applications: Wireless communication (main/diversity IF receivers, digital pre-distortion, MMC-GSM systems), portable test instrumentation, radar and guidance systems, high-speed digitizers
ADS62P49 Price (1ku): $ 144.75 |
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16-, 14-, and 12-Bit Octal Channel, Ultra-Low Glitch, Voltage Output DAC with 2.5-V, 2-ppm/°C Internal Reference: The DAC8568 family has 8 channels on one chip. DAC features include ultra-low glitch, excellent INL, lowest power dissipation, and an integrated 2.5-V, 2-ppm/°C temperature drift reference with 0.004% initial accuracy. The family also offers binary input and power-on-reset to either zero or mid-scale.
Resources:
Data sheet
- Lowest power and smallest package (14- and 16-pin TSSOP) for 8 DAC channels
- Reference has 20-mA sink/source capability
- Applications: Automatic test equipment, precision instrumentation, precision waveform generation, industrial process control, medical equipment
DAC8568 Price (1ku): $ 13.20 |
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Lowest Power, 1.1-nV/√Hz Noise, Precision Op Amp in DFN-8 (3x3mm) and SOIC-8: The dual-channel OPA2211 amplifier offers the ability to significantly reduce board space while maintaining balance of performance and price. The device achieves very low 1.1-nV√Hz noise density with a supply current of only 3.6mA and offers rail-to-rail output swing, which maximizes dynamic range.
Resources:
Data sheet
- Low voltage and low current noise, high speed, and wide output swing make it ideal as a loop filter amp in PLL applications
- In precision data acquisition applications, provides 700ns settling time to 16-bit accuracy throughout 10-V output swings
- Applications: PLL loop filters, 16-bit ADC drivers, DAC output amps, reference buffer, low-noise instrumentation amps; professional audio preamps, low-noise frequency synthesizers, hydrophone amps, medical
OPA2211A Price (1ku): $ 5.20 |
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1.4-W/Channel, Stereo, Class-D Audio Subsystem with DirectPath™ Headphone Amp: The TPA2054D4 features a filter-free, Class-D audio speaker amp and stereo DirectPath headphone amp with a 1.8-V compatible I2C interface for control. The device has a mono differential input for the primary speaker and two stereo, single-ended inputs that can be configured as one stereo differential input.
Resources:
Data sheet
- Class-D speaker amps deliver 1.4W into 8Ω at 5.0V or 700mW into 8Ω at 3.6V; can also provide 2.4W into 4Ω at 5.0V
- DirectPath headphone amp uses a built-in charge pump to create a negative supply voltage, eliminating the need for external DC-blocking output capacitors to the headphones
- Applications: Wireless handsets, smartphones, personal navigation devices, notebooks, portable games, DVD players
TPA2054D4 Price (1ku): $ 1.30 |
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Low-Power, Stereo Audio Codec for Portable Audio/Telephony: The TLV320AIC36 flexible, low-voltage stereo audio codec with programmable inputs and outputs features a fully programmable miniDSP; fixed, predefined and parameterizable signal processing blocks; integrated PLL; integrated LDOs; and flexible digital interfaces. The device's two fully software-controlled miniDSP cores support application-specific algorithms in the record and/or the playback path of the device.
Resources:
Data sheet
- Operations from 8-kHz mono voice playback to audio stereo 192-kHz DAC playback
- 10-mW power consumption (48-kHz stereo playback) for extended battery run time
- Applications: Cell phones, personal navigation devices, PDAs, personal media players, conference/IP phones
TLV320AIC36 Price (1ku): $ 5.70 |
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Second-Generation, System-on-Chip Solution for 2.4 GHz IEEE 802.15.4/RF4CE/ZigBee®: The CC2530 enables robust network nodes to be built with very low total bill-of-material costs. The device combines the excellent performance of a leading RF transceiver with an industry-standard enhanced 8051 MCU, in-system programmable flash memory, and 8-KB RAM.
Resources:
Data sheet,
video
- Four different flash versions: CC2530F32/64/128/256, with 32/64/128/256 KB of flash memory, respectively
- Short transition times between operating modes further ensure low energy consumption
- Applications: RF4CE remote controls, A/V devices, Zigbee and Zigbee PRO products, automatic meter reading, home and commercial building automation, environmental monitoring, medical
CC2530 Price: (1ku): $ 5.05 |
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Quad SPDT Wide-Bandwidth Video Switch with Low On-State Resistance: The TS5V330C is a 4-bit, 1-of-2 multiplexer/de-multiplexer video switch with a single switch-enable (EN) input. Low differential gain and phase, wide bandwidth, and low cross talk make this switch ideal for high-frequency video applications.
Resources:
Data sheet
- Fully specified for partial power-down applications using I-off, ensuring that damaging current will not backflow through the device when it is powered down
- Low cross-talk: Typical –87dB at 10MHz
- Applications: RGB and composite video switching, TV, switch box
TS5V330C Price (1ku): $ 0.29 |
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Family of Ultra-Low-Power Microcontrollers with Full-Speed, Embedded USB 2.0: The MSP430F55xx microcontrollers are configured with full-speed USB 2.0, offering an integrated USB-Phy, 3.3-V/1.8-V USB power system, integrated USB-PLL and 8 or 16 endpoints. The architecture consists of a powerful 16-bit RISC CPU that offers five low-power modes optimized to achieve extended battery life in portable measurement applications due to extremely low power consumption.
Resources:
Data sheet
- Supports a supply-voltage range from 1.8V to 3.6V and offers a fast wake-up from standby mode
- Includes four 16-bit timers, a high-performance, 12-bit ADC, two universal serial communication interfaces (USCI), hardware multiplier, DMA, real-time clock module with alarm capabilities, and up to 60 I/O pins
- Applications: Analog and digital sensor systems, data loggers, portable medical, industrial instruments, consumer electronics, and applications that require connectivity to various USB hosts
MSP430F55xx Price (1ku): $ 3.25 |
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System Block Diagrams
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Literature
Consumer and Portable Medical Guide: TI's broad portfolio of embedded processing, power management and high performance analog solutions provides the extended battery life, ultra-low power and fast response times needed for portable medical equipment. |
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Videos
Adding USB Host Functionality to Embedded Devices: The requirements for USB host system and the USB On-the-Go 2.0 specification are discussed.
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THS4521 Very Low Power, Rail-to-Rail Output ADC Driver: The THS4521, a differential, precision ADC driver available in 1, 2 and 4 channels, is an ideal solution for driving SAR and ΔΣ ADCs up to 24 bits.
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XIO2001 Performance Tuning Tool |
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Technology Days 2009: Join TI for a day packed with technical design sessions and technology exhibits. The seminar provides a learning forum where practical high-performance design solutions, tools, techniques, topologies and examples will be presented. |
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| COMPANY-AUTHORED ARTICLES IN THE MEDIA |
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| "How to design a safer battery charging system," by Jinrong Qian and Mao Ye. Battery Power Products & Technology, April 2009. |
| "Five top things no one thinks about for PoE…but should!," by Paul Schreier. Hearst Semiconductor Applications, April 2009. |
| "USB OTG: The only wired interface portable consumer products need?," by Dan Harmon. PlanetAnalog.com, April 2009. |
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| CUSTOMER SUPPORT CONTACT INFORMATION |
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TI E2E Online Community: Visit TI's Online Community and interact with your peer engineers, TI engineers, and other experts in order to ask questions, share knowledge, explore ideas, and help solve problems.
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