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Electronic Components & Devices ->
Electronic Components ->
Regulators
Regulators
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LDO Linear Voltage Regulators offer ultra-low noise, high PSRR.Texas Instruments, Inc. (TI)
Dallas, TX 75243-4136
May 23, 2013
Designed to meet requirements of RF and analog circuits, 250 mA LP5907 and 800 mA LP38798 respectively feature power supply rejection ratio (PSRR) of 75 dB at 1 kHz and 90 dB at 10 kHz as well as output noise of less than 10 µVrms and 5 µVrms. While LP5907 comes in 0.65 x 0.65 x 0.40 mm micro SMD package and suits mobile handsets, tablets, and WiFi device applications, LP38798 comes in 4.0 x 4.0 x 0.8 mm WSON package and serves basestation applications.
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DC Switching Regulator delivers efficiencies over 96%.CUI, Inc.
Tualatin, OR 97062
May 22, 2013
Supplied in 3-pin, 11.60 x 7.50 x 10.20 mm, TO-220 compatible SIP, non-isolated P7805-S series is rated at 500 mA and has 4.75–32 Vdc input range that varies in line with output voltage configuration. Output options include 1.5, 1.8, 2.5, 3.3, 5, 6.5, 9, 12, and 15 Vdc. Efficiency is maintained across full input range, with rating of 95% at 32 Vdc. Targeting portable devices, battery-powered equipment, and embedded designs, products operate from -40 to +85°C and have 2 million hr MTBF.
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Synchronous Current PFM/PWM Buck Reglator comes in 8-pin SOIC.Exar Corp.
Fremont, CA 94538
May 08, 2013
Capable of delivering constant output current up to 3 A and operating input up to 18 V, PowerBlox™ XRP7675 synchronous current mode Pulse Frequency Modulation/Pulse Width Modulation (PFM/PWM) step down (buck) voltage regulator suits energy-efficient products requiring constantly-on power supplies. Product is optimized for 5 and 12 V inputs, with programmable output voltage down to 0.925 V, and delivers efficiencies from 85% at 30 mA load to as high as 95% up to 3 A.
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 Current Balancer comes in sizes from 5-250 kVA.Utility Systems Technologies
Watervliet, NY 12189
Apr 12, 2013
Current Balancer is designed for 3-phase motor applications where power source is supplying unbalanced current, causing excessive heat, and potentially premature failure. Using high-speed electronic tap switching design, unit precisely adjusts voltage which in turn will balance current to within 3% or less. Housed in NEMA-3R enclosure for outdoor installations, balancer is suited for submersible pumps used in municipalities supplying water in rural areas.
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Step Down Voltage Regulator delivers max load current of 2 A.Exar Corp.
Fremont, CA 94538
Apr 03, 2013
With operating input voltage up to 18 V, PowerBlox™ XRP7674 achieves better than 90% efficient conversions for output current as low as 50 mA. Synchronous current mode PFM/PWM buck regulator operates at fixed 340 kHz switching frequency, with output voltage adjustable down to 0.925 V and ±2% accuracy across operating range. Housed in RoHS-compliant, halogen-free 8-Pin SOIC package, regulator is suited for set-top boxes, telecom, computing peripherals, and distributed POL conversions.
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 LED Driver IC targets automotive interior lighting.Allegro MicroSystems Inc.
Worcester, MA 01615
Apr 02, 2013
Providing up to 100 mA from each of 4 outputs, Model A6263 drives arrays of high brightness LEDs with constant current for safe operation. Outputs can be connected in parallel or left unused as required, and regulated LED current from each output is set by single reference resistor. Housed in 8-pin SOICN package with exposed thermal pad for thermal dissipation, programmable current regulator provides protection against LED short, LED string open, IC pin open/short, and over temperature.
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 Ultra-LDO Linear Regulators suit high-current POL conversion.Advanced Power Electronics Corp
San Jose, CA 95118
Apr 01, 2013
Designed to provide POL DC-DC conversion in board-level applications, Series APE8968MP-HF3 provides dropout of just 0.23 V at 3 A. Units require 2 supply voltages, one for control circuitry and another for main supply. Power-On-Reset circuit monitors both supply voltages to prevent incorrect operation. Available in ESOP-8 package, regulators include thermal shutdown and current limit protection, as well as POK that indicates output status with time delay that is set internally.
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Reference Design supports automotive emergency call systems.Texas Instruments, Inc. (TI)
Dallas, TX 75243-4136
Mar 28, 2013
Integrating AEC-Q100 qualified components, Automotive eCall Reference Design includes TPA3111D1-Q1 mono Class D audio amplifier; TPS43330-Q1 single-boost, dual synchronous buck controller; TLV70033-Q1 voltage regulator; and MSP430F2232 16-bit microcontroller. TPA3111D1-Q1 delivers 10 W output power at 8 Ω with greater than 90% efficiency, while TPS43330-Q1 supports automotive start/stop and boosts back-up battery supply voltage, allowing operation down to 2 V at input.
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 LED Driver IC serves automotive interior lighting applications.Allegro MicroSystems Inc.
Worcester, MA 01615
Mar 19, 2013
Supplied in 8-pin SOIC package with exposed pad, A6269 automotive-qualified, linear, programmable current regulator can drive 2 LED strings at up to 200 mA each. Regulated LED current from each of 2 outputs is set by single reference resistor, outputs can be connected in parallel or left unused as required, and current matching in each string is achieved without ballast resistor. Dual control pins are available for both switch (on/off) and master control (on/off/dim up/dim down) signals.
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 Constant-Current LED Driver is AEC-Q100 qualified.Allegro MicroSystems Inc.
Worcester, MA 01615
Jan 28, 2013
Integrating high-side, N-channel MOSFET switch, Model A6213 provides constant-current output up to 3 A to drive high-power LEDs. Output voltage automatically adjusts to optimize constant-current supply to variety of LED array configurations including multiple LEDs in series. LED dimming is accomplished via direct logic input PWM signal. Housed in 8-pin narrow SOIC package, IC is suited for automotive map lights, DRL daytime running lights, fog lights, and underhood lamps.
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 Constant Current Regulators suit solid state lighting systems.ON Semiconductor, LLC
Phoenix, AZ 85008
Dec 07, 2012
Based on self-biased transistor technology, NSIC20xx Series offers max voltage rating of 120 V, 3 W and can withstand peak voltages of AC off-line HBLED lighting applications. Models NSIC2020BT3G, NSIC2030BT3G, and NSIC2050BT3G have steady state current capability of 20, 30, and 50 mA, respectively. Devices turn on immediately and reach 45% regulation with anode-cathode voltage of 0.5 V applied. Offered in 2.20 x 3.56 x 4.32 mm package, regulators support junction temperature of -55 to +175°C.
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Switching Regulators offer over 95% conversion efficiency.Analog Devices Inc
Norwood, MA 02062
Dec 05, 2012
Supplied in 4 x 4 mm, 24-lead LFCSP, ADP2384 (4 A) and ADP2386 (6 A) 20 V DC/DC regulators respectively integrate 44 and 11 mΩ on-resistance power MOSFETs, accept 4.5–20 V input, and offer 0.6–18 V output range with 1% voltage accuracy. Current limit protection allows use of smaller inductors, and switching frequency can be synchronized to external clock. Operating over -40 to +125°C junction temperature range, 168 mm˛ solutions also provide precision-enable input and power-good output.
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 Linear Voltage Regulator is optimized for accuracy.Advanced Power Electronics Corp
San Jose, CA 95118
Nov 15, 2012
Available in fixed and adjustable output voltage versions, APU1205-3 series offers better than 2% initial voltage accuracy and dropout voltage of 270 mV at 300 mA or 170 mV at 150 mA. Quiescent current at shutdown is 5 µA, and other features include TTL-compatible enable/shutdown control input, current limiting, and thermal shutdown. Suited for handheld, battery-powered equipment, product comes in 5-pin, SMT, halogen-free, and REACH-/RoHS-compliant, SOT-23 package.
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 Controller IC is designed for on-board DC/DC conversion.Advanced Power Electronics Corp
San Jose, CA 95118
Nov 15, 2012
Intended for on-board DC/DC converter applications with designs down to 1.8 V, APU3037-3 synchronous buck regulator features internal 200 kHz oscillator (400 kHz for the A version), UVLO for Vcc and Vc supplies, and external programmable soft-start function. IC comes in halogen-free, RoHS-/REACH-compliant package, operates with single 5 or 15 V supply in fixed frequency voltage mode, and has 500 mA peak output drive capability. Output under-voltage detection is also included.
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Quadruple Output Regulator suits car infotainment applications.Allegro MicroSystems Inc.
Worcester, MA 01615
Nov 14, 2012
Model A8600 power management IC includes 3 asynchronous regulators, one of which is always on and operates down to at least 3.6 VIN while drawing less than 50 µA from 12 VIN. Available in 48-pin LQFP, product has EN/SYNC input for on/off or to increase/decrease base PWM frequency; 4 adjustable soft-start times; and 4 external compensation pins. Two high-side switches block reverse current. Also included are pulse-by-pulse current limit and short circuit, BOOT voltage, and over-voltage protection.
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Buck LED Driver provides constant current output.Allegro MicroSystems Inc.
Worcester, MA 01615
Sep 27, 2012
With 6–48 V input supply voltage, 3.0 A Model A6211 integrates high-side N-channel MOSFET switch for DC-to-DC stepdown conversion. True average current is output using cycle-by-cycle, controlled on-time method. LED current is user-configurable by external current sense resistor, allowing output voltage to be set to optimize constant-current supply for variety of LED array configurations. LED dimming is accomplished by direct logic input PWM signal at enable pin.
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LDO Linear Voltage Regulator sources 1 A load.Texas Instruments, Inc. (TI)
Dallas, TX 75243-4136
Sep 04, 2012
Featuring less than 4.17 µVrms output noise over 10 Hz to 100 kHz bandwidth, Model TPS7A4700 eliminates need for bulky filtering. Unique feature enables setting of any output voltage rail in 100 mV increments. With digital control methods such as I˛C or PMBus, user can program output voltage by selecting to either ground or open binary-weighted device pins. Input voltage rating 36 V allows use in systems running 12 V and 24 V buses with enough headroom to withstand high-voltage transients.
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DC-DC Switching Regulator delivers more than 94% efficiency.Analog Devices, Inc.
Norwood, MA 02062-9106
Jul 24, 2012
Supporting input range of 4.5-36 V, Model ADP2441 provides adjustable output voltage from 0.6 V to 90% of input voltage, suitable for point-of-load applications. Synchronous step-down regulator offers low minimum on-time of 50 ns and adjustable switching frequency from 300 kHz to 1 MHz. By using current-mode constant frequency PWM control scheme, ADP2441 minimizes output voltage ripple. Housed in 3 x 3 mm 12-lead LFCSP package, device operates from -40 to +125°C.
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Voltage References feature low frequency noise of 0.5 ppm.Analog Devices, Inc.
Norwood, MA 02062-9106
May 30, 2012
With input voltage of 3-15 V, ADR45xx Series features max temperature coefficient of 2 ppm/°C over full operating temperature of -40 to +125°C and typical long-term drift of 25 ppm/1 khr. Output current is +10 mA source/-10 mA sink. Housed in SOIC-8 package with quiescent current of 950 µA max and dropout voltage of 300 mV at 2 mA, devices are suited for precision applications in data acquisition systems, instrumentation, process control, and automotive battery monitoring.
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 Multi-Output Regulator is intended for automotive LCD bias.Allegro MicroSystems Inc.
Worcester, MA 01615
May 11, 2012
Offered in 28-pin eTSSOP, A8601 fixed-frequency, multiple-output supply for LCD bias is Automotive Grade AEC Q-100 qualified and targets infotainment applications. Switching frequency can be programmed or synchronized with external clock signal from 350 KHz to 2.25 MHz to minimize interference with AM and FM radio bands, and up to 5 output voltages are provided from 3 linear regulators and 2 charge-pump regulators. Each output voltage can be adjusted independently.
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