Electrical Regulators

Power Supply Engineers Can View Performance, Save Time with Enhanced WEBENCH Design Tool and New SIMPLE SWITCHER Regulators from National Semiconductor

WEBENCH Power Designer Graphical Tool Accelerates Designs; 11 New Step-down Switching Regulators Feature Voltage Range from 4.5V to 42V October 20, 2008 - National Semiconductor Corp. (NYSE:NSM) today announced the addition of a sophisticated but easy-to-use graphical tool to its WEBENCH® online design environment as well as 11 new SIMPLE SWITCHER® step-down voltage regulators. The...

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Electrical Regulators

LDO Regulator adds efficiencies to energy-sensitive systems.

Offered as 300 mA LDO solution, FAN2564 has dropout of 100 mV and operates from supplies as low as 1.8 V, allowing device to post-regulate from existing low voltage supplies in system. By operating from low VIN, voltage drop across the LDO is reduced, resulting in high efficiency linear power conversion. LDO consumes 45 Â-µA at no load, and is offered in compact 0.93 x 1.41 WL-CSP or 2 x 2...

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Switching Regulators have output current of 1 A.
Electrical Regulators

Switching Regulators have output current of 1 A.

Consisting of 9 models, TSR-1 Series of switching regulators offer 4.75-32 Vdc input ranges and output voltages of 1.5-15 Vdc. Full load operation is available up to +60°C ambient temperature without need of any heatsink or forced cooling. Featuring lower stand-by current, and not requiring external capacitors for operation, products suit battery-powered applications.

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DC/DC Controller operates from -55 to 125°C.
Electrical Regulators

DC/DC Controller operates from -55 to 125°C.

Used in step-down, step-up, inverting, and SEPIC topologies, Model LT3724 features voltage range of 4-60 V, output voltages to 36 V, and quiescent current of 100 Â-µA. Unit operates at constant 200 kHz switching frequency and safely powers pre-biased load by not allowing negative currents to flow in output inductor. Additional features include undervoltage lockout, 10 µA shutdown...

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DC-DC Buck Converter supplies 600 mA for low output voltages.
Electrical Regulators

DC-DC Buck Converter supplies 600 mA for low output voltages.

AS1324 delivers up to 600 mA from input voltage range of 2.7-5.5 V, making device suited for single Li-Ion cell or triple AA cell applications. Fixed output voltage versions 1.2, 1.5, and 1.8 of AS1324 require no external voltage dividers, reducing board space requirements, while adjustable variant allows externally set output voltage in 0.6 V to VIN range. Cconstant 1.5 MHz frequency switching...

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Switching Regulators do not require external capacitors.
Electrical Regulators

Switching Regulators do not require external capacitors.

Operating from -40 to +85°C, TSR-1 Series is comprised of 9 models offering 4.75-32 Vdc input range, output voltages from 1.5-15 Vdc, and output current of 1 A. Efficiency up to 96% allows full load operation up to +60°C ambient temperature without heatsink or forced cooling. Along with built-in filter capacitors, series features short circuit protection, ±2% output accuracy,...

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Electrical Regulators

LDO Regulator has low dropout voltage of 275 mV at full load.

Allowing to be paralleled for heat spreading, model LT3085 is adjustable down to 0 V with single resistor. It features 500 mA output current, input voltage of 1.2-36 V, low noise of 33 Â-µVrms over bandwidth of 10 Hz to 100 kHz, stable 10 µA current source reference, and thermal limiting and current limiting with foldback. Unit is offered in low profile 6-lead DFN, or 8-pin thermally...

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Electrical Regulators

Monolithic 5-Output Regulator suits TFT-LCD panels.

Offering 2 MHz switching frequency that keeps switching noise out of critical frequency bands, LT3513 offers 2.2 A (ISW) buck regulator, 1.5 A (ISW) boost regulator, 250 mA (ISW) boost regulator, 250 mA (ISW) inverter, and LDO controller in one 5 x 7 mm QFN package. Each channel has independent soft-start/run pin, and 4.5-30 V input voltage range is suited for TFT-LCD applications. Switching...

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Electrical Regulators

Step-Down DC/DC Converter draws 75 µA quiescent current.

Supplied in 3 x 3 mm package, LT3972 switching regulator operates within 3.6-33 V range and withstands transients up to 62 V. Internal 4.6 A switch delivers up to 3.5 A continuous output current at voltages down to 0.79 V, while Burst Mode® operation keeps quiescent current under 75 Â-µA and output ripple below 15 mVPK-PK. With programmable 200 kHz to 2.4 MHz switching frequency, IC...

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Electrical Regulators

Synchronous Controller features low drop-out voltage.

Model LTC3853, triple output switching regulator controller, has 4.5-24 V (28 V max) input range and features coincident or ratiometric tracking that safely powers pre-biased loads. On-board MOSFET gate drivers allow external MOSFETs to produce output currents to 20 A with output voltages from 0.8-13.5 V. Constant-frequency current mode architecture provides selectable fixed or PLL frequency from...

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