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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Omschrijving Prijs 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-stocknr. 545-5950
FabrikantnummerLT1302CN85#PBF
FabrikantAnalog Devices
€ 3,70
Each
Aantal stuks
Step Up 600mA 1 0.15 %/V - Through Hole PDIP 8 Fixed 265 kHz Yes - 10.16 x 6.48 x 3.3mm 3.3mm
RS-stocknr. 709-8981
FabrikantnummerTPS61071DDCR
€ 0,76
Each
Aantal stuks
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-stocknr. 332-764
FabrikantnummerMAX641ACPA+
FabrikantMaxim Integrated
€ 4,13
Each
Aantal stuks
Step Up 1.5A 1 0.08 %V 0.2 %V Through Hole PDIP 8 Adjustable, Fixed 50 kHz Yes 80% 9.91 x 7.87 x 4.45mm 4.45mm
RS-stocknr. 162-6463
FabrikantnummerTPS61090RSAR
€ 1,143
Each (On a Reel of 3000)
Aantal stuks
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
RS-stocknr. 165-3359
FabrikantnummerMCP1640BT-I/CHY
FabrikantMicrochip
€ 0,373
Each (On a Reel of 3000)
Aantal stuks
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-stocknr. 533-3305
FabrikantnummerLM2585T-5.0/NOPB
€ 3,10
Each
Aantal stuks
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-stocknr. 825-3669
FabrikantnummerTLV61225DCKT
€ 1,188
Each (In a Pack of 5)
Aantal stuks
Boost Converter 400mA 1 0.5 % 0.5 % Surface Mount SC-70 6 Fixed - - - 2.15 x 1.4 x 1mm 1mm
RS-stocknr. 738-6250
FabrikantnummerMCP1640BT-I/CHY
FabrikantMicrochip
€ 0,516
Each (In a Pack of 5)
Aantal stuks
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-stocknr. 162-4681
FabrikantnummerLM2585T-5.0/NOPB
€ 3,00
Each (In a Tube of 45)
Aantal stuks
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-stocknr. 533-3872
FabrikantnummerLM2621MM/NOPB
€ 2,26
Each
Aantal stuks
Step Up 1A 1 - - Surface Mount MSOP 8 Adjustable 2000 kHz Yes 87% 3 x 3 x 0.86mm 0.86mm
RS-stocknr. 161-2659
FabrikantnummerNCP1422MNR2G
FabrikantON Semiconductor
€ 1,147
Each (In a Pack of 10)
Aantal stuks
Boost Converter 800mA 1 1 mV/V 1 mV/V Surface Mount DFN 10 Adjustable 1.2 MHz Yes 94% 3 x 3 x 1.95mm 1.95mm
RS-stocknr. 165-4043
FabrikantnummerMCP1661T-E/OT
FabrikantMicrochip
€ 0,601
Each (On a Reel of 3000)
Aantal stuks
Step Up 200mA 1 0.5 %/V 1.5 % Surface Mount SOT-23 5 Adjustable 575 kHz Yes 92% 3.1 x 1.8 x 1.3mm 1.3mm
RS-stocknr. 622-9027
FabrikantnummerMAX856CSA+
FabrikantMaxim Integrated
€ 3,89
Each
Aantal stuks
Step Up 150mA 1 - - Surface Mount SOIC 8 Fixed 500 kHz Yes - 5 x 4 x 1.5mm 1.5mm
RS-stocknr. 192-1872
FabrikantnummerMAX757CPA+
FabrikantMaxim Integrated
€ 3,332
Each (In a Tube of 50)
Aantal stuks
Step Up - 1 - - Through Hole PDIP 8 Adjustable, Fixed 500 kHz Yes - 9.91 x 7.87 x 4.45mm 4.45mm
RS-stocknr. 869-6104
FabrikantnummerMCP1642B-ADJI/MS
FabrikantMicrochip
€ 0,906
Each (In a Pack of 5)
Aantal stuks
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-stocknr. 841-7535
FabrikantnummerMCP1661T-E/OT
FabrikantMicrochip
€ 0,826
Each (In a Pack of 10)
Aantal stuks
Step Up 200mA 1 0.5 %/V 1.5 % Surface Mount SOT-23 5 Adjustable 575 kHz Yes - 3.1 x 1.8 x 1.3mm 1.3mm
RS-stocknr. 919-9269
FabrikantnummerLT3494EDDB#TRMPBF
FabrikantAnalog Devices
€ 1,968
Each (On a Reel of 500)
Aantal stuks
Boost Converter 27mA 1 - - Surface Mount DFN 8 Adjustable, Selectable 50 kHz Yes - 3 x 2 x 0.75mm 0.75mm
RS-stocknr. 923-6756
FabrikantnummerTPS61175PWP
€ 3,206
Each (In a Tube of 90)
Aantal stuks
Step Up 3A 1 - - Surface Mount HTSSOP 14 Adjustable 2200 kHz Yes - 5 x 4.4 x 1.15mm 1.15mm
RS-stocknr. 798-1290
FabrikantnummerLMZ34002RKGT
€ 14,57
Each
Aantal stuks
Boost/Buck Controller 2A 1 ±0.1 % ±0.4 % Surface Mount BQFN 41 Adjustable 900 kHz Yes - 11.15 x 9.15 x 2.85mm 2.85mm
RS-stocknr. 504-5014
FabrikantnummerLM2731YMF/NOPB
€ 2,064
Each (In a Pack of 5)
Aantal stuks
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