Switching Regulators

Switching regulators are circuits that transform voltage and input current into a voltage and an output current of suitable level for properly feed the system, compensating for variations in the load and input voltage. They regulate energy transfer to maintain a constant output voltage within the circuit limits.

What are switching regulators used for?

They are use for single-cell or multi-cell battery powered applications and for portable electronic devices that are battery powered. They can prevent short circuits and ensure over voltage and under voltage protection. Switching regulators protect electronic systems from over current and over temperature damage.

Types of switching regulators

The basic circuit of the switching regulator can be configured to increase (step up or boost), reduce (step down or buck), or reverse the output voltage with respect to the input voltage (inverters). Switching regulators offer several advantages over linear voltage regulators. The main advantage is the high conversion efficiency, up to 95%. They often do not require external capacitors.


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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. 810-3744
Mfr. Part No.L7985A
SGD3.06
Each (In a Pack of 5)
units
4.5 → 38V dc 0.6 → 38V dc 1 2A 2W Surface Mount HSOP -40°C +150°C - - - - -
RS Stock No. 145-9233
Mfr. Part No.L7985A
SGD2.291
Each (In a Tube of 100)
units
4.5 → 38V dc 0.6 → 38V dc 1 2A 2W Surface Mount HSOP -40°C +150°C - - - - -
RS Stock No. 203-3387
Mfr. Part No.L6983C50QTR
SGD1.974
Each (On a Reel of 3000)
units
3.5 V dc, 38 V dc 5V dc 1 3A - - - - - - - - - -
RS Stock No. 809-1376
Mfr. Part No.ST1S32PUR
SGD2.362
Each (On a Tape of 5)
units
2.8 → 5.5V dc Minimum of 0.8V dc 1 4A 2.25W Surface Mount VFDFPN -40°C +150°C - - 0.6% 0.3% -
RS Stock No. 203-3400
Mfr. Part No.L6986HTR
SGD2.148
Each (On a Reel of 2500)
units
4 V dc, 38 V dc 3.3 V dc, 5 V dc 1 2A - - - - - - - - - -
RS Stock No. 203-3388
Mfr. Part No.L6983C50QTR
SGD4.116
Each (In a Pack of 5)
units
3.5 V dc, 38 V dc 5V dc 1 3A - - - - - - - - - -
RS Stock No. 203-3386
Mfr. Part No.L6983C33QTR
SGD4.036
Each (In a Pack of 5)
units
3.5 V dc, 38 V dc 3.3V dc 1 3A - - - - - - - - - -
RS Stock No. 203-3396
Mfr. Part No.L6986H3V3TR
SGD4.612
Each (In a Pack of 5)
units
4 V dc, 38 V dc 3.3 V dc, 5 V dc 1 2A - - - - - - - - - -
RS Stock No. 203-3394
Mfr. Part No.L6983NQTR
SGD4.036
Each (In a Pack of 5)
units
3.5 V dc, 38 V dc 3.3 V dc, 5 V dc 1 3A - - - - - - - - - -
RS Stock No. 203-3393
Mfr. Part No.L6983NQTR
SGD1.958
Each (On a Reel of 3000)
units
3.5 V dc, 38 V dc 3.3 V dc, 5 V dc 1 3A - - - - - - - - - -
RS Stock No. 203-3392
Mfr. Part No.L6983N50QTR
SGD4.116
Each (In a Pack of 5)
units
3.5 V dc, 38 V dc 5V dc 1 3A - - - - - - - - - -
New
RS Stock No. 210-8281
Mfr. Part No.L7983PU50R
SGD1.508
Each (On a Reel of 3000)
units
60V dc - 1 300mA - - - - - - - - - -
New
RS Stock No. 210-8283
Mfr. Part No.L7983PUR
SGD1.508
Each (On a Reel of 3000)
units
60V dc - 1 300mA - - - - - - - - - -
RS Stock No. 203-3401
Mfr. Part No.L6986HTR
SGD4.40
Each (In a Pack of 5)
units
4 V dc, 38 V dc 3.3 V dc, 5 V dc 1 2A - - - - - - - - - -
New
RS Stock No. 210-8282
Mfr. Part No.L7983PU50R
SGD3.624
Each (In a Pack of 5)
units
60V dc - 1 300mA - - - - - - - - - -
RS Stock No. 203-3385
Mfr. Part No.L6983C33QTR
SGD1.974
Each (On a Reel of 3000)
units
3.5 V dc, 38 V dc 3.3V dc 1 3A - - - - - - - - - -
New
RS Stock No. 210-8280
Mfr. Part No.L7983PU33R
SGD3.624
Each (In a Pack of 5)
units
60V dc - 1 300mA - - - - - - - - - -
RS Stock No. 203-3391
Mfr. Part No.L6983N50QTR
SGD1.958
Each (On a Reel of 3000)
units
3.5 V dc, 38 V dc 5V dc 1 3A - - - - - - - - - -
RS Stock No. 203-3397
Mfr. Part No.L6986H5VTR
SGD2.148
Each (On a Reel of 2500)
units
4 V dc, 38 V dc 3.3 V dc, 5 V dc 1 2A - - - - - - - - - -
RS Stock No. 203-3398
Mfr. Part No.L6986H5VTR
SGD4.612
Each (In a Pack of 5)
units
4 V dc, 38 V dc 3.3 V dc, 5 V dc 1 2A - - - - - - - - - -