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庫存編號 122-0170
製造零件編號CS5171GDR8G
HK$9.215
個 (在毎卷:2500)
單位
Step Up 1.5A 1 0.03 %/V - Surface Mount SOIC 8 - 280 kHz Yes - 5 x 4 x 1.5mm 1.5mm
RS庫存編號 786-2319
製造零件編號CS5171GDR8G
HK$19.714
/個 (每包:5個)
單位
Step Up 1.5A 1 0.03 %/V - Surface Mount SOIC 8 - 280 kHz Yes - 5 x 4 x 1.5mm 1.5mm
RS庫存編號 516-647
製造零件編號TPS61032PWP
HK$30.64
單位
Step Up 1A 1 0.6 % 0.6 % Surface Mount HTSSOP 16 Fixed 600 kHz Yes 96% 5 x 4.4 x 1.15mm 1.15mm
RS庫存編號 145-7084
製造零件編號TPS61032PWP
HK$26.061
毎管:90 個
單位
Step Up 1A 1 0.6 % 0.6 % Surface Mount HTSSOP 16 Fixed 600 kHz Yes 96% 5 x 4.4 x 1.15mm 1.15mm
RS庫存編號 165-3358
製造零件編號MCP1640T-I/CHY
BrandMicrochip
HK$4.466
個 (在毎卷:3000)
單位
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庫存編號 545-5950
製造零件編號LT1302CN85#PBF
HK$70.57
單位
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庫存編號 121-9346
製造零件編號LMR62421XMFE/NOPB
HK$13.48
個 (在毎卷:250)
單位
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
RS庫存編號 811-5863
製造零件編號LMR62421XMFE/NOPB
HK$17.595
/個 (每包:10個)
單位
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
RS庫存編號 738-6241
製造零件編號MCP1640T-I/CHY
BrandMicrochip
HK$5.386
/個 (每包:5個)
單位
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庫存編號 423-674
製造零件編號LT3580EMS8E#PBF
HK$51.75
單位
Inverting, Step Up 2.8A 1 0.05 %/V - Surface Mount MSOP 8 Adjustable 2200 kHz Yes - 3 x 3 x 0.86mm 0.86mm
RS庫存編號 162-9817
製造零件編號LMR61428XMM/NOPB
HK$7.896
個 (在毎卷:1000)
單位
Step Up 2.85A 1 - - Surface Mount VSSOP 8 Adjustable 2 MHz Yes 87% 3.1 x 3.1 x 0.95mm 0.95mm
RS庫存編號 506-1965
製造零件編號LTC3459ES6#TRMPBF
HK$48.70
單位
Step Up 90mA 1 - - Surface Mount TSOT-23 6 Adjustable - Yes 85% 2.9 x 1.75 x 0.9mm 0.9mm
RS庫存編號 533-8120
製造零件編號LM2577T-ADJ/NOPB
HK$57.54
單位
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庫存編號 751-3020
製造零件編號AP6714M10G-13
HK$6.647
/個 (每包:10個)
單位
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庫存編號 396-455
製造零件編號LT3473EDD#PBF
HK$46.73
單位
Step Up - 1 0.01 %/V - Surface Mount DFN 8 - 1400 kHz Yes - 3 x 3 x 0.75mm 0.75mm
RS庫存編號 661-6945
製造零件編號TPS61202DRCT
HK$25.97
單位
Step Up 600mA 1 0.1 % 0.1 % Surface Mount SON 10 Fixed 1650 kHz Yes 90% 3 x 3 x 0.9mm 0.9mm
RS庫存編號 122-0370
製造零件編號AP6714M10G-13
HK$3.593
個 (在毎卷:2500)
單位
Step Up 5µA 1 5 mV 10 mV Surface Mount MSOP 10 Adjustable 1.8 MHz - - 2.95 x 2.95 x 0.95mm 0.95mm
RS庫存編號 162-5949
製造零件編號TPS61202DRCT
HK$17.42
個 (在毎卷:250)
單位
Step Up 600mA 1 0.1 % 0.1 % Surface Mount SON 10 Fixed 1650 kHz Yes 90% 3 x 3 x 0.9mm 0.9mm
RS庫存編號 914-2995
製造零件編號LMR61428XMM/NOPB
HK$16.086
/個 (每包:5個)
單位
Step Up 2.85A 1 - - Surface Mount VSSOP 8 Adjustable 2 MHz Yes - 3.1 x 3.1 x 0.95mm 0.95mm
RS庫存編號 165-2235
製造零件編號MCP1624T-I/CHY
BrandMicrochip
HK$3.234
個 (在毎卷:3000)
單位
- 50mA 1 0.01 %/V 0.01 %/V Surface Mount SOT-23 6 Adjustable 630 kHz - 96% 3.1 x 1.8 x 1.3mm 1.3mm