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Boost Converters

Boost converters or step-up converters are types of switch mode DC-DC converters designed to boost or step up the input voltage from the supplied output voltage. They provide a higher output voltage than the source power supply. Like a buck converter, a boost converter also features two semiconductors, a capacitor, and an inductor for energy storage. 

Input Sources for Boost Converters

The input direct current source to the boost-converters comes from many sources, such as:

  • Batteries
  • Rectifiers (AC from mains supply)
  • Fuel cells
  • Generators (Electric or DC)
  • Solar Panels.

What are the Benefits of Boost Converters?

They offer various advantages, such as:

  • They provide high output voltage with low distortion and low operating duty cycles.
  • Reduce cost and offer to enhance the functionality of the device to be used. 
  • They are also a source of good quality waveforms even in the presence of the line frequency.

Difference Between a Buck and a Boost Converter

The boost converter differs from buck converters in that the output voltage of the boost converter is greater than or equal to its input voltage. 

Where are Booster Converters Used?

They are widely suited for a wide range of applications and devices, such as:

  • Power Amplifier Applications
  • Batteries
  • Consumer Electronics
  • LCD, OLED displays
  • Hybrid Vehicles
  • DC Motor Drives
  • Haptic Displays
  • Mobile Phones
  • Tablets 
  • MP3 Players
  • Adaptive Control Applications
  • Bar-code Scanners
  • Heaters
  • Power Factor Correction Circuits.

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Monolithic Power Systems (MPS)
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MP1542DK-LF-P, Monolithic Power Systems (MPS)
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Maxim Integrated
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MAX641ACSA+, Maxim Integrated
116 In Stock
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£ 6.45
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NCP1422MNR2G, onsemi
6541 In Stock
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3000 +
£ 0.52
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MCP16251T-I/CH, Microchip
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MCP1640T-I/CHY, Microchip
2088 In Stock
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MP1541DJ-LF-P, Monolithic Power Systems (MPS)
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NJW4814MLE-TE1, Nisshinbo Micro Devices
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£ 1.44
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MAX631ACPA+, Maxim Integrated
199 In Stock
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£ 2.31
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MCP1640BT-I/CHY, Microchip
6958 In Stock
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£ 0.45
Microchip
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MCP1661T-E/OT, Microchip
98 In Stock
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£ 0.74
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MCP1640DT-I/CHY, Microchip
2638 In Stock
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MCP1650R-E/MS, Microchip
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MAX859CSA+, Maxim Integrated
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LTC3429ES6#TRMPBF, Analog Devices
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MP3212DQ-LF-P, Monolithic Power Systems (MPS)
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MAX1932ETC+, Maxim Integrated
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MAX1676EUB+, Maxim Integrated
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MAX641ACPA+, Maxim Integrated
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ADM00865, Microchip
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AP1609SG-13, DiodesZetex
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TLD60981EPXUMA2, Infineon
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AP6714M10G-13, DiodesZetex
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MCP1642B-50I/MS, Microchip
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MAX20472BATCC/V+, Maxim Integrated
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MAX1523EUT+T, Maxim Integrated
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New Items
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MAX856CSA+, Maxim

MAX856CSA+, Maxim

Switching Regulators, Step-Up DC-DC Converters, Maxim Integrated Switching Voltage Regulators, Maxim Integrated
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NJW4132U2-C-TE1, New Japan Radio

NJW4132U2-C-TE1, New Japan Radio

The New Japan Radio switching regulator IC for boost converter corresponds to high oscillating frequency and wide input range from 4.5 to 40 V. Built in compensation circuit PWM control
New items
ISL9111EH50Z-T7A, Renesas Electronics

ISL9111EH50Z-T7A, Renesas Electronics

The Renesas Synchronous Boost Converter with 1A Switch is provide a power supply solution for single-cell, dual-cell, or three-cell alkaline, NiCd or NiMH battery-powered applications. The device has a typical 0.8V start-up voltage and is capable of supplying up to 5.25V output voltage. Both devices are guaranteed to supply 100mA from a single-cell input and 240mA from a dual-cell input when output is 3.3V. High 1.2MHz switching frequency allows for the use of tiny, low-profile inductors and ceramic capacitors to minimize the size of the solution. 100mA output current Vin 0.9V 240mA output from Vin 1.8V Logic control shutdown (Iq < 1μA) Output voltage up to 5.25V Output disconnect during shutdown Skip mode under light load condition
New items
MCP1624T-I/CHY, Microchip

MCP1624T-I/CHY, Microchip

MCP1623/1624 Synchronous Boost Converter The Microchip MCP1623 and MCP1624 are Adjustable, Fixed Frequency, Synchronous Step-Up DC-DC Converters. Primarily they are designed to offer a compact and highly efficient power supply solution for PIC Microcontrollers in one-, two- and three-cell battery powered applications. The desired output voltage of the device is set by the application of a small external resistor divider. The design allows the regulator to start up without high inrush current or output voltage overshoot from a low 0.65 V input. Combined is a low-resistance N-Channel Boost Switch and Synchronous P-Channel Switch to offer high efficiency. All compensation and protection circuitry is integrated into the device to minimise the required external components. Also featured is a Load Disconnect mode that provides input to output isolation while disabled. This mode consumes less than 1 μA of input current. Features Up to 96% Typical Efficiency 425 mA Typical Peak Input Current Limit Low Start Up Voltage: 0.65 V (typical) @ 3.3 V V OUT , 1 mA Low Operating Input Voltage: 0.35 V (typical) @ 3.3 V V OUT , 1 mA Adjustable Output Voltage Range: 2.0 V to 5.5 V Automatic PFM/PWM Operation – MCP1624 model only PWM-only Operation – MCP1623 model only 500 kHz PWM Frequency Low Device Quiescent Current: 19 μA (typical, PFM mode) Internal Synchronous Rectifier Internal Compensation Inrush Current Limiting and Internal Soft-Start True Load Disconnect Shutdown Current: Low Noise, Anti-Ringing Control Over-temperature Protection
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MCP1642B-ADJI/MS, Microchip

MCP1642B-ADJI/MS, Microchip

MCP1642 Synchronous Boost Converter The MCP1642 family of devices from Microchip are compact, high-efficiency, fixed-frequency, synchronous step-up DC-DC converters. These regulators are designed for applications powered by alkaline, NiCd, NiMH, Li-Ion or Li-Polymer batteries. Features Up to 96% Typical Efficiency 1.8A Typical Peak Input Current Limit I OUT > 175 mA @ 1.2V V IN , 3.3V V OUT I OUT > 600 mA @ 2.4V V IN , 3.3V V OUT I OUT > 800 mA @ 3.3V V IN , 5.0V V OUT I OUT > 1A @ V IN > 3.6V, 5.0V V OUT Low Start-up Voltage: 0.65V Minimum Operating Input Voltage: 0.35V Maximum Input Voltage OUT Adjustable Output Voltage Range: 1.8V to 5.5V PWM Operation at 1 MHz Shutdown Current (All States): Internal Synchronous Rectifier Internal Compensation Inrush Current Limiting and Internal Soft-Start True Load Disconnect Shutdown (MCP1642B) Input-to-Output Bypass Option (MCP1642D) Low Noise, Anti-Ringing Control Over-temperature Protection
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MAX1676EUB+, Maxim Integrated

MAX1676EUB+, Maxim Integrated

Switching Regulators, Step-Up DC-DC Converters, Maxim Integrated Note Please note that any defect or non – conformance of this product must be discovered and reported to RS within 20 days of purchase. Switching Voltage Regulators, Maxim Integrated
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MAX1760EUB+, Maxim Integrated

MAX1760EUB+, Maxim Integrated

IC REG BOOST ADJ/3.3V 1A 10UMAX
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MAX641ACSA+, Maxim Integrated

MAX641ACSA+, Maxim Integrated

IC REG BOOST ADJ/5V 0.45A 8SOIC
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MAX764CSA+, Maxim

MAX764CSA+, Maxim

Inverting Switching Regulators, Maxim Integrated Switching Voltage Regulators, Maxim Integrated
New items
NCP1422MNR2G, onsemi

NCP1422MNR2G, onsemi

NCP1422 is a monolithic micropower high frequency step-up switching converter IC specifically designed for battery-operated hand-held electronic products up to 800mA loading. It integrates Sync-Rect to improve efficiency and to eliminate the external Schottky Diode. High switching frequency (up to 1.2 MHz) allows for a low profile, small-sized inductor and output capacitor to be used. When the device is disabled, the internal conduction path from LX or BAT to OUT is fully blocked and the OUT pin is isolated from the battery. Output Current up to 800 mA High Switching Frequency, up to 1.2MHz Anti-Ringing Ring-Killer for Discontinuous Conduction Mode Low Quiescent Current of 8.5 μA 1.0V Startup at No Load Guaranteed Output Voltage from 1.5V to 5V Adjustable 1.5A Cycle by Cycle Current Limit On Chip Thermal Shutdown with Hysteresis Housed in Space-Saving and Low Profile DFN10 package
New items
MCP1642B-50I/MS, Microchip

MCP1642B-50I/MS, Microchip

The Microchip synchronous boost regulator are compact, high-efficiency, fixed-frequency, synchronous step-up DC-DC converters. This family of devices provides an easy-to-use power supply solution for applications powered by either one-cell, two-cell, or three-cell alkaline, Ultimate Lithium, NiCd, NiMH, one-cell Li-Ion or Li-Polymer batteries. Low-voltage technology allows the regulator to start-up without high inrush current or output voltage overshoot from a low voltage input. High efficiency is accomplished by integrating the low-resistance N-Channel Boost switch and synchronous P-Channel switch. Up to 96% typical efficiency Low start-up voltage 0.65 V, typical 3.3 V VOUT @ 1 mA Low operating input voltage 0.35 V, typical 3.3 V VOUT @ 1 mA Internal synchronous rectifier Internal compensation Inrush current limiting and internal soft-start Shutdown current 1 μA Over temperature protection All compensation and protection circuitry are integrated to minimize the number of external components. AnOpen drain power Good output is provided to indicate when the output voltage is within 10% of regulation and facilitates the interface with an MCU.
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