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 Price 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
RS Stock No. 145-9392
Mfr. Part No.MCP1642B-ADJI/MS
BrandMicrochip
kr 6,806
Each (In a Tube of 100)
Units
Step Up 800mA 1 ±0.5 %/V ±1.5 % Surface Mount MSOP 8 Adjustable 1.15 MHz Yes 96% 3 x 3 x 0.95mm 0.95mm
RS Stock No. 869-6104
Mfr. Part No.MCP1642B-ADJI/MS
BrandMicrochip
kr 10,936
Each (In a Pack of 5)
Units
Step Up 800mA 1 ±0.5 %/V ±1.5 % Surface Mount MSOP 8 Adjustable 1.15 MHz Yes - 3 x 3 x 0.95mm 0.95mm
RS Stock No. 162-4681
Mfr. Part No.LM2585T-5.0/NOPB
kr 29,487
Each (In a Tube of 45)
Units
Step Up 3A 1 50 mV 50 mV Through Hole TO-220 5 Fixed 115 kHz Yes 80% 10.16 x 4.57 x 8.64mm 8.64mm
RS Stock No. 914-3103
Mfr. Part No.TPS61232DRCT
kr 28,21
Each (In a Pack of 2)
Units
Step Up 2.1A 1 0.06 %/V 0.15 %/A Surface Mount VSON 10 Adjustable 2 MHz Yes - 3.1 x 3.1 x 0.95mm 0.95mm
RS Stock No. 533-3305
Mfr. Part No.LM2585T-5.0/NOPB
kr 30,69
Each
Units
Step Up 3A 1 50 mV 50 mV Through Hole TO-220 5 Fixed 115 kHz Yes 80% 10.16 x 4.57 x 8.64mm 8.64mm
RS Stock No. 504-5014
Mfr. Part No.LM2731YMF/NOPB
kr 22,438
Each (In a Pack of 5)
Units
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
RS Stock No. 165-3358
Mfr. Part No.MCP1640T-I/CHY
BrandMicrochip
kr 4,055
Each (On a Reel of 3000)
Units
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
RS Stock No. 738-6241
Mfr. Part No.MCP1640T-I/CHY
BrandMicrochip
kr 6,022
Each (In a Pack of 5)
Units
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
RS Stock No. 162-9894
Mfr. Part No.TPS61232DRCT
kr 19,638
Each (On a Reel of 250)
Units
Step Up 2.1A 1 0.06 %/V 0.15 %/A Surface Mount VSON 10 Adjustable 2 MHz Yes 96% 3.1 x 3.1 x 0.95mm 0.95mm
RS Stock No. 100-3888
Mfr. Part No.LM2731YMF/NOPB
kr 9,502
Each (On a Reel of 1000)
Units
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
RS Stock No. 920-3539
Mfr. Part No.LM2587T-ADJ/NOPB
kr 124,168
Each (In a Tube of 45)
Units
Step Up - 1 100 mV 100 mV Through Hole TO-220 5 Adjustable 115 kHz Yes - 10.16 x 4.57 x 8.64mm 8.64mm
RS Stock No. 121-9830
Mfr. Part No.CS5173GDR8G
Brandonsemi
kr 9,571
Each (On a Reel of 2500)
Units
Step Up 1.5A 1 0.03 %/V - Surface Mount SOIC 8 - 560 kHz Yes - 5 x 4 x 1.5mm 1.5mm
RS Stock No. 506-1965
Mfr. Part No.LTC3459ES6#TRMPBF
kr 45,01
Each
Units
Step Up 90mA 1 - - Surface Mount TSOT-23 6 Adjustable - Yes 85% 2.9 x 1.75 x 0.9mm 0.9mm
RS Stock No. 858-0857
Mfr. Part No.LT1615IS5-1#TRMPBF
kr 43,865
Each (In a Pack of 2)
Units
Step Up - 1 0.1 %/V - Surface Mount SOT-23 5 Adjustable - Yes - 3.1 x 1.75 x 1.3mm 1.3mm
RS Stock No. 709-8981
Mfr. Part No.TPS61071DDCR
kr 6,44
Each
Units
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
RS Stock No. 216-7776
Mfr. Part No.MAX17221ENT+T
kr 14,294
Each (On a Reel of 2500)
Units
Boost Converter 275mA 1 1.5 % - - WLP 6 Selectable 2.5 MHz - - - -
New
RS Stock No. 226-4836
Mfr. Part No.LMR62014XMF/NOPB
kr 8,592
Each (In a Pack of 10)
Units
Step Up 1.4A 1 0.02 %/V - - SOT-23 5 - 1.6 MHz - - - -
RS Stock No. 168-2656
Mfr. Part No.ADM00865
BrandMicrochip
kr 508,02
Each
Units
Boost Converter 1000mA 1 0.1 %/V 0.2 % Surface Mount VQFN 10 Adjustable 575 kHz Yes 92% 2 x 2 x 0.85mm 0.85mm
RS Stock No. 192-1898
Mfr. Part No.MAX859CSA+
kr 32,473
Each (In a Tube of 100)
Units
Step Up 60mA 1 - - Surface Mount SOIC 8 Adjustable 500 kHz Yes - 5 x 4 x 1.5mm 1.5mm
RS Stock No. 533-5373
Mfr. Part No.LM2700MT-ADJ/NOPB
kr 44,03
Each
Units
Step Up 2.5A 1 0.02 %/V - Surface Mount TSSOP 14 Adjustable 1250 kHz Yes 90% 5 x 4.4 x 0.9mm 0.9mm