Switching Regulators

Switching regulators are a type of circuit that can transform voltage and input current into a voltage and an output current that is most suitable to power the system that it is producing power for. These types of circuits are also known as converters and are ideal for regulating the energy that is transferred between these two contact points to maintain a constant output voltage that is safely within the limits of the circuit. They work at a much higher conversion efficiency than linear regulators and offer the advantage of better and more cost-effective power management in the long term, as well as the fact that they often don't require external capacitors.

What are switching regulators used for?

These types of regulators are often used for single-cell or multi-cell battery-powered applications and for battery-powered portable electronic devices like digital cameras, handheld games consoles, controllers and more. The main benefit of using these switching converters instead of linear regulators is that they offer short-circuit protection and ensure over-voltage and under-voltage protection. They are also good for protecting electronic systems from over-temperature and over-current damage.

Types of switching regulators

  • Step-Up or Boost Regulators - These are the most basic type of switching regulator and are used to increase the output voltage
  • Step-Down or Buck-Boost Converters - They reduce or reverse the output voltage with respect to the input voltage

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    Description Price Input Voltage Output Voltage Number of Outputs Output Current Power Rating Mounting Type Package Minimum Temperature Maximum Temperature Efficiency MTBF Load Regulation Line Regulation Ripple And Noise
    RS Stock No. 190-8221
    Mfr. Part No.MAX5033BUSA+
    £2.088
    Each (In a Pack of 5)
    Units
    7.5 → 76V dc 5.15V dc 1 500mA - Surface Mount - 0°C +85°C 94 (Typ.)% - - - -
    RS Stock No. 190-8224
    Mfr. Part No.MAX5033DASA+
    £2.088
    Each (In a Pack of 5)
    Units
    7.5 → 76V dc - - 500mA - Surface Mount - -40°C +125°C 94 (Typ.)% - - - -
    RS Stock No. 190-4491
    Mfr. Part No.MAX1685EEE+
    £3.626
    Each (In a Tube of 100)
    Units
    2.7 → 14V dc 3.28 → 3.38V dc 1 1A - Surface Mount - -40°C +85°C 96% - 15mV - -
    RS Stock No. 190-8227
    Mfr. Part No.MAX5035DUSA+
    £2.51
    Each (In a Pack of 2)
    Units
    7.5 → 76V dc 3.18 → 12.36V dc 1 1A - Surface Mount - 0°C +85°C 94 (Typ.)% - - - -
    RS Stock No. 190-8149
    Mfr. Part No.MAX17543ATP+
    £2.224
    Each (In a Pack of 5)
    Units
    4.5 → 42V dc 4.75 → 5.25V dc 1 2.5A - Surface Mount - -40°C +125°C 90% - - - -
    RS Stock No. 190-8020
    Mfr. Part No.MAX861ISA+
    £1.636
    Each (In a Pack of 5)
    Units
    1.5 → 5.5V dc 2.5 → 5.5V dc 1 100mA - Surface Mount - -25°C +85°C 99.9 (Typ.)% - - - -
    RS Stock No. 190-8125
    Mfr. Part No.MAX1683EUK+T
    £1.166
    Each (In a Pack of 5)
    Units
    2 → 5.5V dc 12V dc 1 45mA - Surface Mount - -40°C +85°C 99.9 (Typ.)% - - - -
    RS Stock No. 190-8177
    Mfr. Part No.MAX1771ESA+T
    £3.88
    Each (In a Pack of 2)
    Units
    2 → 16.5V dc 12.48V dc 1 2A - Surface Mount - -40°C +85°C 92 (Typ.)% - - - -
    RS Stock No. 204-2497
    Mfr. Part No.MAX20012BATJJ/V+
    £4.35
    Each (In a Pack of 2)
    Units
    3 → 5.5 0.5 → 1.27V dc 2 12A - - - - - - - - - -
    RS Stock No. 190-4511
    Mfr. Part No.MAX1771ESA+T
    £2.695
    Each (On a Reel of 2500)
    Units
    2 → 16.5V dc 12.48V dc 1 2A - Surface Mount - -40°C +85°C 92 (Typ.)% - - - -
    RS Stock No. 190-4550
    Mfr. Part No.MAX861IUA+
    £1.137
    Each (In a Tube of 50)
    Units
    1.5 → 5.5V dc 2.5 → 5.5V dc 1 100mA - Surface Mount - -25°C +85°C 99.9 (Typ.)% - - - -
    RS Stock No. 190-8230
    Mfr. Part No.MAX639ESA+
    £4.755
    Each (In a Pack of 2)
    Units
    4 → 11.5V dc 4.8 → 5.2V dc 1 225mA - Surface Mount - -40°C +85°C 94 (Typ.)% - - - -
    RS Stock No. 190-7943
    Mfr. Part No.MAX1595EUA33+
    £2.136
    Each (In a Pack of 5)
    Units
    1.8 → 5.5V dc 4.8 → 5.2V dc 1 125µA - Surface Mount - -40°C +85°C - - - - -
    RS Stock No. 190-8119
    Mfr. Part No.MAX1678EUA+
    £2.53
    Each (In a Pack of 2)
    Units
    5.5V dc 3.16 → 3.44V dc 1 90mA - Surface Mount - -40°C +85°C 90% - - - -
    RS Stock No. 190-8271
    Mfr. Part No.MAX735CSA+
    £3.115
    Each (In a Pack of 2)
    Units
    4 → 9V dc -5.25 → -4.75V dc 1 175mA - Surface Mount - 0°C +70°C 78 (Typ.)% - - - -
    RS Stock No. 190-8152
    Mfr. Part No.MAX1697UEUT+T
    £1.588
    Each (In a Pack of 5)
    Units
    1.25 → 5.5V dc -0.3 → 0.3V dc 1 90mA - Surface Mount - -40°C +85°C 99.9 (Typ.)% - - - -
    RS Stock No. 190-8201
    Mfr. Part No.MAX17503ATP+T
    £2.805
    Each (In a Pack of 2)
    Units
    4.5 → 60V dc 4.75 → 5.25V dc 1 2.5A - Surface Mount - -40°C +125°C >90% - - - -
    RS Stock No. 190-8023
    Mfr. Part No.MAX861IUA+
    £1.636
    Each (In a Pack of 5)
    Units
    1.5 → 5.5V dc 2.5 → 5.5V dc 1 100mA - Surface Mount - -25°C +85°C 99.9 (Typ.)% - - - -
    RS Stock No. 190-8128
    Mfr. Part No.MAX1685EEE+
    £5.06
    Each
    Units
    2.7 → 14V dc 3.28 → 3.38V dc 1 1A - Surface Mount - -40°C +85°C 96% - 15mV - -
    New
    RS Stock No. 205-5863
    Mfr. Part No.MAXM15067AMB+
    £3.488
    Each (On a Tape of 10)
    Units
    4.5 → 60V dc 0.9 → 6.3V dc 1 300mA - - - - - - - - - -