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庫存編號 810-3744
製造零件編號L7985A
HK$15.594
/個 (每包:5個)
單位
4.5 → 38V dc 0.6 → 38V dc 1 2A 2W Surface Mount HSOP -40°C +150°C - - - - -
RS庫存編號 165-6554
製造零件編號ST1S31PUR
HK$6.208
個 (在毎卷:3000)
單位
2.8 → 5.5V dc 0.8 → 5.5V dc 1 3A 1.5W Surface Mount VFDFPN -40°C +150°C - - 0.6% 0.3% -
RS庫存編號 809-1376
製造零件編號ST1S32PUR
HK$12.472
Each (On a Tape of 5)
單位
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庫存編號 810-3766
製造零件編號ST1S31PUR
HK$9.08
Each (On a Tape of 5)
單位
2.8 → 5.5V dc 0.8 → 5.5V dc 1 3A 1.5W Surface Mount VFDFPN -40°C +150°C - - 0.6% 0.3% -
RS庫存編號 168-7852
製造零件編號ST1S32PUR
HK$8.558
個 (在毎卷:4500)
單位
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庫存編號 810-3756
製造零件編號L7986A
HK$14.91
/個 (每包:5個)
單位
4.5 → 38V dc 0.6 → 38V dc 1 3A 2W Surface Mount HSOP -40°C +150°C - - - - -