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 121-9830
製造零件編號CS5173GDR8G
TWD33.20
個 (在毎卷:2500)
單位
Step Up 1.5A 1 0.03 %/V - Surface Mount SOIC 8 - 560 kHz Yes - 5 x 4 x 1.5mm 1.5mm
RS庫存編號 161-2588
製造零件編號NCP1027P065G
TWD42.70
毎管:50 個
單位
Boost Converter 800mA 1 - - Through Hole DIP 8 Adjustable 100 kHz Yes 82% 10.16 x 7.11 x 4.95mm 4.95mm
RS庫存編號 161-2614
製造零件編號NCP1422MNR2G
TWD19.10
個 (在毎卷:3000)
單位
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庫存編號 163-0252
製造零件編號NCV887001D1R2G
TWD23.70
個 (在毎卷:2500)
單位
Boost Controller 100µA 1 - - Surface Mount SOIC 8 Adjustable 110 kHz - - 5 x 4 x 1.5mm 1.5mm
RS庫存編號 823-4135
製造零件編號NCV887001D1R2G
TWD53.00
/個 (每包:5個)
單位
Boost Controller 100µA 1 - - Surface Mount SOIC 8 Adjustable 110 kHz - - 5 x 4 x 1.5mm 1.5mm
RS庫存編號 121-7973
製造零件編號NCV887100D1R2G
TWD39.00
個 (在毎卷:2500)
單位
Boost Controller 100µA 1 - - Surface Mount SOIC 8 Adjustable 187 kHz - - 5 x 4 x 1.5mm 1.5mm
RS庫存編號 823-4144
製造零件編號NCV887100D1R2G
TWD87.40
/個 (每包:5個)
單位
Boost Controller 100µA 1 - - Surface Mount SOIC 8 Adjustable 187 kHz - - 5 x 4 x 1.5mm 1.5mm
RS庫存編號 161-2617
製造零件編號NCP1421DMR2G
TWD23.20
個 (在毎卷:4000)
單位
Boost Converter 600mA 1 1 mV/V 1 mV/V Surface Mount Micro 8 Adjustable 1.2 MHz Yes 94% 3.1 x 3.1 x 0.95mm 0.95mm
RS庫存編號 464-182
製造零件編號NCP1403SNT1G
TWD26.80
/個 (每包:5個)
單位
Step Up 50mA 1 - - Surface Mount TSOP 5 - 300 kHz Yes 82% 3 x 1.5 x 1mm 1mm
RS庫存編號 786-2325
製造零件編號CS5173GDR8G
TWD74.20
/個 (每包:5個)
單位
Step Up 1.5A 1 0.03 %/V - Surface Mount SOIC 8 - 560 kHz Yes - 5 x 4 x 1.5mm 1.5mm
RS庫存編號 122-0170
製造零件編號CS5171GDR8G
TWD33.20
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
TWD74.20
/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 163-2561
製造零件編號NCP1403SNT1G
TWD9.70
個 (在毎卷:3000)
單位
Step Up 50mA 1 - - Surface Mount TSOP 5 - 300 kHz Yes - 3 x 1.5 x 1mm 1mm
RS庫存編號 161-2674
製造零件編號NCP1421DMR2G
TWD45.60
/個 (每包:10個)
單位
Boost Converter 600mA 1 1 mV/V 1 mV/V Surface Mount Micro 8 Adjustable 1.2 MHz Yes 94% 3.1 x 3.1 x 0.95mm 0.95mm
RS庫存編號 161-2659
製造零件編號NCP1422MNR2G
TWD42.70
/個 (每包:10個)
單位
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