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PMIC - Voltage Regulators – DC-DC Switching Regulators Online

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MAX1831EEE+, Maxim

Switching Regulators, Step-Down DC-DC Regulator with Internal Switches, Maxim Integrated Switching Voltage Regulators, Maxim Integrated

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Miniature μMAX Package 1.5V to 10.0V Operating Supply Voltage Range 98% Typical Power-Conversion Efficiency Invert, Double, Divide, or Multiply Input Voltages BOOST Pin Increases Switching Frequencies (MAX1044) No-Load Supply Current: 200μA Max at 5V No External Diode Required for Higher-Voltage Operation Applications -5V Supply from +5V Logic Supply Data Acquisition Handheld Instruments (PDAs, Palmtops) Op-Amp Power Supplies Panel Meters Personal Communications Equipment Portable Telephones

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MAX1721EUT+T, Maxim

1nA Logic-Controlled Shutdown 6-Pin SOT23 Package 99.9% Voltage Conversion Efficiency 50μA Quiescent Current (MAX1720) +1.5V to +5.5V Input Voltage Range 25mA Output Current Requires Only Two 1μF Capacitors (MAX1719/MAX1721) Applications Battery-Powered Applications GaAs PA Bias Supply Handy-Terminals, PDAs Local Negative Supply from a Positive Supply Small LCD Panels

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MAX861IUA+, Maxim

8-Pin, 1.11mm High μMAX Package Invert or Double the Input Supply Voltage Three Selectable Switching Frequencies High Frequency Reduces Capacitor Size 87% Efficiency at 50mA 200μA Quiescent Current (MAX860) 1μA Shutdown Supply Current 600mV Voltage Drop at 50mA Load 12Ω Output Resistance Applications Handheld Instruments (PDAs, Palmtops) Interface Power Supplies Medical Instruments Operational Amplifier Power Supplies Portable Computing

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MAX15062CATA+T, Maxim

60V 300MA STEP-DOWN DC-DC CONVERTER Maxim Integrated presents the MAX15062 series of ultra-small, high-efficiency, synchronous step-down DC-DC converters are the industrys smallest high-voltage synchronous buck regulator. A buck regulator is a DC-DC power converter which steps down voltage while stepping up current from its input to its output. This DC-DC converter with integrated MOSFETs operates over a 4.5V to 60V input voltage range. The MAX15062 series delivers an output current up to 300mA and comes in variants of 3.3V (MAX15062A), 5V (MAX15062B), and adjustable output voltages (MAX15062C). The device has the capability of operating at -40 °C to +125 °C and employs a peak-current-mode control architecture with a MODE pin that can be used to operate the device in pulse-width modulation (PWM) or pulse-frequency modulation (PFM) control schemes. Features and Benefits Internal Soft-Start, Wide 4.5V to 60V Input Voltage Range, Peak Efficiency = 92%, High Industrial -40°C to +125°C Ambient Operating Temperature Range/-40°C to +150°C Junction Temperature Range, Delivers Up to 300mA Load Current, Shutdown Current = 2.2μA (typ) Applications 4–20mA Current Loops General-Purpose Point-of-Load High-Voltage LDO Replacement HVAC and Building Control Industrial Sensors Process Control

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RS_145-6208, Linear Technology

Buck/Boost/Inverting Regulators A range of high-efficiency DC-DC Converters from Linear Technology which are able to operate as Step-up (Boost), Step-down (Buck) or Inverting regulators. These highly integrated devices require only a few external components for full regulator functionality and many incorporate features such as micro-power operation, low-battery detection, adjustable current limiting and shutdown/enable inputs. Switching Voltage Regulators, Linear Technology Linear Technology product series of synchronous and non-synchronous internal switching regulator ICs offer high efficiency plus a wide input voltage range and switching frequencies up to 4MHz. The controllers span over several types of configurations from buck (step-down), boost (step-up), buck-boost, forward, Isolated, Inverting and flyback controllers. The Flyback, Forward and Isolated Controllers primary and secondary side provide a solution to help replace the DC/DC bricks that get used in back-plane power conversion.

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MAX15301AA02+CJK, Maxim Integrated

IC REG CTRLR BUCK PMBUS 32TQFN

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MAX17544ATP+, Maxim Integrated

IC REG BUCK ADJ 3.5A SYNC 20TQFN

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TSN 1-2450, TRACOPOWER

Traco 1A Step Down Switching Regulator - TSN-1 Series The Traco Power TSN 1 Series of step down switching regulators are a replacement for inefficient 79xx linear regulators. This series of DC/DC converters feature a high efficiency up to 96%, which allows full load operation up to +70°C (+85°C with derating) ambient temperature without the need of any heat sink or forced air cooling. The TSN 1 series of switching regulators also features over linear regulators, lower standby current and no requirement of external capacitors. The TSN 1 DC/DC converters are ideal in applications for energy sensitive applications. Non-isolated converter for negative output Small size and low profile Pin compatible with LM79xx linear regulators No heatsink required High efficiency up to 96% Operation temperature range –40°C to +85°C Protection against overload, short circuit and over-temperature Fixed switching frequency Wide input range up to -32 Vdc Excellent line / load regulation Low standby current ∼ 2 mA 3-year product warranty

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TSRN 1-24120A, TRACOPOWER

Traco 1A SIP Step Down Switching Regulator - TSRN-1 Series TSRN-1 Series 1A step-down switching regulators with a wide input voltage range of up to 42 Vdc and a high efficiency of up to 95% which allows full load operation without the need for a heatsink or forced air cooling. These TSRN-1 Series 1A step-down switching regulators are suitable for positive and negative output circuits (please refer to table for additional data). Excellent line and load regulation and a low standby current makes these TSRN-1 switching regulators ideal for use in energy sensitive applications. Input voltage range up to 42 VDC Built in filter capacitors No heat-sink required Over-temperature and short circuit protection Low standby current: 1 mA for = 5.0 Vdc ouput models SIP package fits existing TO-220 footprint Pin compatible with LMxx linear regulators Additional Data RS Stock Number Manufacturer Part Number Input Voltage Range Output Voltage Maximum Output Current Efficiency Typ @ Vin min Efficiency Typ @ Vin max Positive Output Circuit 755-3390 TSRN 1-2418 4.6 → 42 Vdc 1.8 Vdc 1 A 80% 70% 755-3396 TSRN 1-2415 4.6 → 42 Vdc 1.5 Vdc 1 A 77% 66% 755-3400 TSRN 1-2425 4.6 → 42 Vdc 2.5 Vdc 1 A 83% 75% 755-3425 TSRN 1-2425A 4.6 → 42 Vdc 2.5 Vdc 1 A 83% 75% 755-3403 TSRN 1-2433 4.6 → 42 Vdc 3.3 Vdc 1 A 87% 79% 755-3429 TSRN 1-2433A 4.6 → 42 Vdc 3.3 Vdc 1 A 87% 79% 755-3407 TSRN 1-2450 6.5 → 42 Vdc 5 Vdc 1 A 91% 83% 755-3438 TSRN 1-2450A 6.5 → 42 Vdc 5 Vdc 1 A 91% 83% 755-3416 TSRN 1-2465 8 → 42 Vdc 6.5 Vdc 1 A 93% 86% 755-3431 TSRN 1-2465A 8 → 42 Vdc 6.5 Vdc 1 A 93% 86% 755-3419 TSRN 1-2490 10.5 → 42 Vdc 9 Vdc 1 A 94% 88% 755-3435 TSRN 1-2490A 10.5 → 42 Vdc 9 Vdc 1 A 94% 88% 755-3413 TSRN 1-24120 13.5 → 42 Vdc 12 Vdc 1 A 95% 91% 755-3444 TSRN 1-24120A 13.5 → 42 Vdc 12 Vdc 1 A 95% 91% 755...

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R-78AA12-0.5SMD, Recom

R78AAxx-0.5SMD Series Replacement for R-78Axx-0.5SMD series Non-isolated High efficiency up to 97% Adjustable output voltage Wide input voltage range Thermal shutdown and continuous short circuit protection Remote On/Off control UL94V-0 package material SMD 10 pin package Note Derate output when operating temperature above +71°C. MTBF to MIL-HDBK 217F (+25°C). Stk numbers 706-3922 and 706-3957 have fixed output voltages. Standards EN-60950-1

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