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 389-312
製造零件編號TPS61080DRCT
TWD101.00
單位
Step Up 200mA 1 - - Surface Mount SON 10 Adjustable 1200 kHz Yes 87% 3 x 3 x 0.9mm 0.9mm
RS庫存編號 162-4407
製造零件編號TPS61080DRCT
TWD60.40
個 (在毎卷:250)
單位
Step Up 200mA 1 - - Surface Mount SON 10 Adjustable 1200 kHz Yes - 3 x 3 x 0.9mm 0.9mm
RS庫存編號 162-8102
製造零件編號BQ25504RGTT
TWD114.60
個 (在毎卷:250)
單位
Boost Converter - 3 ±10 % - Surface Mount QFN 16 - 1 MHz Yes - 3.15 x 3.15 x 0.95mm 0.95mm
RS庫存編號 817-5880
製造零件編號BQ25504RGTT
TWD183.00
單位
Boost Converter - 3 ±10 % - Surface Mount QFN 16 - 1 MHz Yes - 3.15 x 3.15 x 0.95mm 0.95mm
RS庫存編號 812-3631
製造零件編號TPS61221DCKT
TWD41.00
/個 (每包:10個)
單位
Step Up 400mA 1 0.5 % 0.5 % Surface Mount SC-70 6 Fixed 2000 kHz Yes - 2.15 x 1.4 x 1mm 1mm
RS庫存編號 709-8877
製造零件編號TPS61085DGKT
TWD78.00
單位
Step Up 2A 1 0.0002 %/V 0.11 %/A Surface Mount MSOP 8 Adjustable 1200 kHz Yes - 3 x 3 x 0.97mm 0.97mm
RS庫存編號 533-8120
製造零件編號LM2577T-ADJ/NOPB
TWD235.00
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 411-936
製造零件編號LT1615ES5#TRMPBF
TWD193.00
單位
Step Up 350mA 1 0.1 %/V - Surface Mount SOT-23 5 Selectable - Yes - 3.1 x 1.75 x 1.3mm 1.3mm
RS庫存編號 917-5838
製造零件編號MP1542DK-LF-P
TWD84.40
/個 (每包:5個)
單位
Boost 2A 1 - - Surface Mount MSOP 8 Adjustable 1.5 MHz Yes - 3.1 x 3.1 x 0.95mm 0.95mm
RS庫存編號 423-674
製造零件編號LT3580EMS8E#PBF
TWD202.00
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 170-9368
製造零件編號MP1542DK-LF-P
TWD49.20
個 (在毎卷:500)
單位
Boost 2A 1 - - Surface Mount MSOP 8 Adjustable 1.5 MHz Yes - 3.1 x 3.1 x 0.95mm 0.95mm
RS庫存編號 121-9372
製造零件編號TPS61221DCKT
TWD26.30
個 (在毎卷:250)
單位
Step Up 400mA 1 0.5 % 0.5 % Surface Mount SC-70 6 Fixed 2000 kHz Yes - 2.15 x 1.4 x 1mm 1mm
RS庫存編號 162-6462
製造零件編號TPS61085DGKT
TWD46.50
個 (在毎卷:250)
單位
Step Up 2A 1 0.0002 %/V 0.11 %/A Surface Mount MSOP 8 Adjustable 1200 kHz Yes - 3 x 3 x 0.97mm 0.97mm
RS庫存編號 100-3984
製造零件編號LM2577T-ADJ/NOPB
TWD188.00
毎管:45 個
單位
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庫存編號 153-3329
製造零件編號LT1615ES5#TRMPBF
TWD95.90
個 (在毎卷:500)
單位
Step Up 350mA 1 0.1 %/V - Surface Mount SOT-23 5 Selectable - Yes - 3.1 x 1.75 x 1.3mm 1.3mm
RS庫存編號 798-1290
製造零件編號LMZ34002RKGT
TWD448.00
單位
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庫存編號 162-6594
製造零件編號LMZ34002RKGT
TWD355.80
個 (在毎卷:250)
單位
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庫存編號 533-3872
製造零件編號LM2621MM/NOPB
TWD88.00
單位
Step Up 1A 1 - - Surface Mount MSOP 8 Adjustable 2000 kHz Yes 87% 3 x 3 x 0.86mm 0.86mm
RS庫存編號 170-9364
製造零件編號MP1541DJ-LF-P
TWD44.10
個 (在毎卷:500)
單位
Boost - 1 - - Surface Mount TSOT-23 5 Adjustable 1.6 MHz Yes - 3 x 1.7 x 0.9mm 0.9mm
RS庫存編號 812-3647
製造零件編號TPS61222DCKT
TWD41.00
/個 (每包:10個)
單位
Step Up 400mA 1 0.5 % 0.5 % Surface Mount SC-70 6 Fixed 2000 kHz Yes - 2.15 x 1.4 x 1mm 1mm