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. 162-4705
Mfr. Part No.LM2700MT-ADJ/NOPB
PHP199.809
Each (In a Tube of 94)
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
RS Stock No. 533-5373
Mfr. Part No.LM2700MT-ADJ/NOPB
PHP211.18
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
RS Stock No. 162-4407
Mfr. Part No.TPS61080DRCT
PHP101.33
Each (On a Reel of 250)
units
Step Up 200mA 1 - - Surface Mount SON 10 Adjustable 1200 kHz Yes - 3 x 3 x 0.9mm 0.9mm
RS Stock No. 389-312
Mfr. Part No.TPS61080DRCT
PHP148.58
Each
units
Step Up 200mA 1 - - Surface Mount SON 10 Adjustable 1200 kHz Yes 87% 3 x 3 x 0.9mm 0.9mm
RS Stock No. 545-5950
Mfr. Part No.LT1302CN85#PBF
PHP387.00
Each
units
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 Stock No. 533-8120
Mfr. Part No.LM2577T-ADJ/NOPB
PHP435.33
Each
units
Step Up 3A 1 50 mV 50 mV Through Hole TO-220 5 Adjustable 56 kHz Yes 80% 10.16 x 4.7 x 8.89mm 8.89mm
RS Stock No. 100-3984
Mfr. Part No.LM2577T-ADJ/NOPB
PHP310.229
Each (In a Tube of 45)
units
Step Up 3A 1 50 mV 50 mV Through Hole TO-220 5 Adjustable 56 kHz Yes - 10.16 x 4.7 x 8.89mm 8.89mm
RS Stock No. 533-5452
Mfr. Part No.LM2750LD-5.0/NOPB
PHP89.78
Each
units
Step Up 120mA 1 - - Surface Mount LLP 10 Fixed 1700 kHz Yes 87% 3 x 3 x 0.8mm 0.8mm
RS Stock No. 162-4707
Mfr. Part No.LM2750LD-5.0/NOPB
PHP69.165
Each (On a Reel of 1000)
units
- - - - - - - - - - - - - -
RS Stock No. 900-9747
Mfr. Part No.TPS61088RHLT
PHP218.34
Each
units
Synchronous Boost Converter 10A 3 - - Surface Mount VQFN 20 Fixed 2.2 MHz Yes - 4.65 x 3.65 x 0.95mm 3.65mm
RS Stock No. 162-9892
Mfr. Part No.TPS61088RHLT
PHP135.764
Each (On a Reel of 250)
units
Synchronous Boost Converter 10A 3 - - Surface Mount VQFN 20 Fixed 2.2 MHz Yes 91% 4.65 x 3.65 x 0.95mm 3.65mm
RS Stock No. 121-9165
Mfr. Part No.TPS61201DRCT
PHP97.13
Each (On a Reel of 250)
units
Step Up 300mA 1 0.1 % 0.1 % Surface Mount SON 10 Fixed 1650 kHz Yes - 3 x 3 x 0.9mm 0.9mm
RS Stock No. 751-3020
Mfr. Part No.AP6714M10G-13
PHP37.383
Each (In a Pack of 10)
units
Step Up 5µA 1 5 mV 10 mV Surface Mount MSOP 10 Adjustable 1.8 MHz - 94% 2.95 x 2.95 x 0.95mm 0.95mm
RS Stock No. 822-6862
Mfr. Part No.LT1937ES5#TRMPBF
PHP182.588
Each (In a Pack of 5)
units
Step Up 15mA 1 - - Surface Mount TSOT-23 5 Adjustable 1.6 MHz Yes - 2.9 x 1.5 x 0.9mm 0.9mm
RS Stock No. 533-3412
Mfr. Part No.LM2588S-ADJ/NOPB
PHP618.21
Each
units
Step Up 5A 1 100 mV 100 mV Surface Mount TO-263 7 Adjustable 200 kHz Yes 90% 10.16 x 8.64 x 4.57mm 4.57mm
RS Stock No. 738-6241
Mfr. Part No.MCP1640T-I/CHY
BrandMicrochip
PHP30.282
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. 155-7576
Mfr. Part No.LT1937ES5#TRMPBF
PHP112.98
Each (On a Reel of 500)
units
Step Up 15mA 1 - - Surface Mount TSOT-23 5 Adjustable 1.6 MHz Yes 84% 2.9 x 1.5 x 0.9mm 0.9mm
RS Stock No. 506-1915
Mfr. Part No.LTC3429ES6#TRMPBF
PHP262.92
Each
units
Step Up 600mA 1 - - Surface Mount TSOT-23 6 Adjustable 620 kHz Yes 96% 2.9 x 1.75 x 0.9mm 0.9mm
RS Stock No. 661-6941
Mfr. Part No.TPS61201DRCT
PHP142.80
Each
units
Step Up 300mA 1 0.1 % 0.1 % Surface Mount SON 10 Fixed 1650 kHz Yes 90% 3 x 3 x 0.9mm 0.9mm
RS Stock No. 533-3333
Mfr. Part No.LM2586S-ADJ/NOPB
PHP467.17
Each
units
Step Up 3A 1 100 mV 100 mV Surface Mount TO-263 7 Adjustable 200 kHz Yes 93% 10.16 x 8.64 x 4.57mm 4.57mm