Boost Converters

Boost converters, also known as step-up converters, are DC-to-DC power conversion devices (a type of switch mode converter) used to increase voltage from its input supply to its output, while simultaneously stepping down the current. The power input can come from any suitable DC source, such as batteries, solar panels, rectifiers, and DC generators. Boost converters contain at least two semiconductors, such as diodes or transistors, and at least one energy storage element, such as a capacitor, an inductor, or it may contain both in combination.

RS Components offer a range of boost converters from a variety of brands, including Analog Devices, Maxim Integrated, Texas Instruments, and more.

How do boost converters work?

The boost converter is able to store energy in its inductor and then simultaneously release it at a higher load voltage than was inputted in the beginning making it very useful in speeding up devices. In order to conserve the power of the circuit (as P=VI), the output current is lower than the input current to account for the higher voltage.

Boost converters can primarily work in one of two modes: continuously or discontinuously. In the continuous mode, the current is never allowed to reach zero during the discharging process (when the transistor is turned off) and thus the inductor can consistently and efficiently produce the boosted voltage rate. In this mode, the timing of the transistor switching between ON/OFF is dimensioned in such a way that the inductor is always connected back to the input supply quickly, never allowing the inductor to be completely discharged.

Alternatively, running the boost converter in the discontinuous mode means there is a greater period of time between the ON state and OFF state of the transistor. During this time, the inductor may become fully discharged and remain inactive until the transistor is ON again, and this fluctuation may cause voltages to ripple.

Where are booster converters used?

  • LCD, OLED displays
  • Haptic displays
  • Portable devices like tablets, MP3 players, and mobile phones
  • Bar-code scanners

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Description Prix Regulator Function Maximum Output Current Number of Outputs Line Regulation Load Regulation Mounting Type Package Type Pin Count Output Type Maximum Switching Frequency Switching Regulator Efficiency Dimensions Height
N° de stock RS 121-9346
Référence fabricantLMR62421XMFE/NOPB
1,132 €
Each (On a Reel of 250)
Unité
Step Up 3A 1 0.06 %/V - Surface Mount SOT-23 5 Adjustable 2000 kHz Yes - 3.05 x 1.75 x 1.3mm 1.3mm
N° de stock RS 811-5863
Référence fabricantLMR62421XMFE/NOPB
1,608 €
Each (In a Pack of 10)
Unité
Step Up 3A 1 0.06 %/V - Surface Mount SOT-23 5 Adjustable 2000 kHz Yes - 3.05 x 1.75 x 1.3mm 1.3mm
N° de stock RS 162-6463
Référence fabricantTPS61090RSAR
0,953 €
Each (On a Reel of 3000)
Unité
Step Up 500mA 1 0.6 % 0.6 % Surface Mount QFN 16 Adjustable 600 kHz Yes 96% 4 x 4 x 0.9mm 0.9mm
N° de stock RS 709-8833
Référence fabricantTPS61090RSAR
2,02 €
Each
Unité
Step Up 500mA 1 0.6 % 0.6 % Surface Mount QFN 16 Adjustable 600 kHz Yes 96% 4 x 4 x 0.9mm 0.9mm
N° de stock RS 545-5944
Référence fabricantLT1302CN8#PBF
6,44 €
Each
Unité
Step Up 1A 1 0.15 %/V - Through Hole PDIP 8 Adjustable 265 kHz Yes - 10.16 x 6.48 x 3.3mm 3.3mm
N° de stock RS 811-5854
Référence fabricantLMR62014XMFE/NOPB
1,288 €
Each (In a Pack of 10)
Unité
Step Up 2A 1 0.02 %/V - Surface Mount SOT-23 5 Adjustable 1.85 MHz Yes - 3.05 x 1.75 x 1.3mm 1.3mm
N° de stock RS 504-5014
Référence fabricantLM2731YMF/NOPB
1,72 €
Each (In a Pack of 5)
Unité
Step Up - 1 0.02 %/V - Surface Mount SOT-23 5 Adjustable 600 kHz Yes 85% 2.92 x 1.6 x 1.02mm 1.02mm
N° de stock RS 709-8981
Référence fabricantTPS61071DDCR
0,76 €
Each
Unité
Step Up 150mA 1 1 % 1 % Surface Mount SOT 6 Adjustable 1200 kHz Yes 90% 2.9 x 1.6 x 0.87mm 0.87mm
N° de stock RS 100-3888
Référence fabricantLM2731YMF/NOPB
0,849 €
Each (On a Reel of 1000)
Unité
Step Up - 1 0.02 %/V - Surface Mount SOT-23 5 Adjustable 600 kHz Yes - 2.92 x 1.6 x 1.02mm 1.02mm
N° de stock RS 920-3611
Référence fabricantLM2621MM/NOPB
1,019 €
Each (On a Reel of 1000)
Unité
Step Up 1A 1 - - Surface Mount MSOP 8 Adjustable 2000 kHz Yes - 3 x 3 x 0.86mm 0.86mm
N° de stock RS 884-6970
Référence fabricantLT1170HVCQ#PBF
15,17 €
Each
Unité
Boost, Buck, Flyback, Forward, Inverting 5A 1 0.03 %/V - Surface Mount DD 5 - 115 kHz Yes - 10.541 x 10.922 x 4.572mm 4.572mm
N° de stock RS 533-3872
Référence fabricantLM2621MM/NOPB
1,89 €
Each
Unité
Step Up 1A 1 - - Surface Mount MSOP 8 Adjustable 2000 kHz Yes 87% 3 x 3 x 0.86mm 0.86mm
N° de stock RS 812-4078
Référence fabricantTLV61220DBVR
0,71 €
Each (In a Pack of 25)
Unité
Step Up 400mA 1 0.5 % 0.5 % Surface Mount SOT-23 6 Adjustable 2000 kHz Yes - 3.05 x 1.75 x 1.3mm 1.3mm
N° de stock RS 162-6462
Référence fabricantTPS61085DGKT
1,098 €
Each (On a Reel of 250)
Unité
Step Up 2A 1 0.0002 %/V 0.11 %/A Surface Mount MSOP 8 Adjustable 1200 kHz Yes - 3 x 3 x 0.97mm 0.97mm
N° de stock RS 145-6225
Référence fabricantLMR62014XMFE/NOPB
0,754 €
Each (On a Reel of 250)
Unité
Step Up 2A 1 0.02 %/V - Surface Mount SOT-23 5 Adjustable 1.85 MHz Yes - 3.05 x 1.75 x 1.3mm 1.3mm
N° de stock RS 709-8877
Référence fabricantTPS61085DGKT
1,85 €
Each
Unité
Step Up 2A 1 0.0002 %/V 0.11 %/A Surface Mount MSOP 8 Adjustable 1200 kHz Yes - 3 x 3 x 0.97mm 0.97mm
N° de stock RS 121-9379
Référence fabricantTLV61220DBVR
0,371 €
Each (On a Reel of 3000)
Unité
Step Up 400mA 1 0.5 % 0.5 % Surface Mount SOT-23 6 Adjustable 2000 kHz Yes - 3.05 x 1.75 x 1.3mm 1.3mm
N° de stock RS 825-3669
Référence fabricantTLV61225DCKT
0,99 €
Each (In a Pack of 5)
Unité
Boost Converter 400mA 1 0.5 % 0.5 % Surface Mount SC-70 6 Fixed - - - 2.15 x 1.4 x 1mm 1mm
N° de stock RS 165-9014
Référence fabricantMAX1676EUB+
2,741 €
Each (In a Tube of 50)
Unité
Step Up 420mA 1 2.5 mV/V 15 mV Surface Mount μMAX 10 Adjustable, Fixed - - 90% 3.05 x 3.05 x 0.95mm 0.95mm
N° de stock RS 165-3359
Référence fabricantMCP1640BT-I/CHY
MarqueMicrochip
0,373 €
Each (On a Reel of 3000)
Unité
Step Up 350mA 1 1 %/V 1 % Surface Mount SOT-23 6 Adjustable 575 kHz Yes 96% 3.1 x 1.8 x 1.3mm 1.3mm