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 193-4019
BrandRS PRO
HK$44.83
單位
16 → 36V dc 12V dc 1 1A - PCB Mount - -40°C +85°C 96/93% 2000 (Minimum)kh ±0.6% ±0.4% 75mV Pk-Pk
RS庫存編號 672-7124
製造零件編號R-785.0-1.0
BrandRecom
HK$62.87
單位
6.5 → 18V dc 5V dc 1 1A 5W Through Hole SIP -40°C +85°C 94% 13338000h ±0.6% ±0.4% 30mV Pk-Pk
RS庫存編號 167-2730
製造零件編號SR05S1V5
BrandXP Power
HK$2,248.29
毎管:40 個
Tube(s)
4.75 → 34V dc 1.5V dc 1 500mA 0.75W Through Hole SIP -40°C +85°C 79% >4.5Mh ±0.6% ±0.5% 60mV Pk-Pk
RS庫存編號 193-3959
BrandRS PRO
HK$1,424.14
毎管:32 個
Tube(s)
6.5 → 36V dc 5V dc 1 500mA - Surface Mount SMD -40°C +85°C 90/84% 2000 (Minimum)kh ±0.6 (Typ.)% ±0.4% 50mV Pk-Pk
RS庫存編號 706-3935
製造零件編號R-78AA2.5-0.5SMD
BrandRecom
HK$74.13
單位
4.75 → 32V dc 2.5V dc 1 500mA - Surface Mount DIP -40°C +85°C 87% 29253000h 0.7% 0.2% 20mV Pk-Pk
RS庫存編號 166-6622
製造零件編號R-78AA6.5-0.5SMD
BrandRecom
HK$2,533.80
毎管:33 個
Tube(s)
8 → 32V dc 6.5V dc 1 500mA - Surface Mount DIP -40°C +85°C 95% 29253000h 0.7% 0.2% 20mV Pk-Pk
RS庫存編號 190-8023
製造零件編號MAX861IUA+
HK$19.16
/個 (每包:5個)
單位
1.5 → 5.5V dc 2.5 → 5.5V dc 1 100mA - Surface Mount - -25°C +85°C 99.9 (Typ.)% - - - -
RS庫存編號 166-6748
製造零件編號ROF-78E3.3-0.5SMD-R
BrandRecom
HK$12,150.83
毎卷:500 個
Reel(s)
5 → 36V dc 3.3V dc 1 500mA 1.65W Surface Mount SMD -40°C +85°C 84% 3500 x 10³h ±3% ±1% 100mV
RS庫存編號 161-9073
製造零件編號TR05S12
BrandXP Power
HK$1,177.02
毎管:40 個
Tube(s)
14 → 28V dc 12V dc 1 500mA 6W Through Hole SIP -40°C +85°C 94% >4Mh ±0.8% ±0.5% 60mV Pk-Pk
RS庫存編號 193-3992
BrandRS PRO
HK$59.20
單位
10 → 36V dc 6.5V dc 1 1A - Surface Mount SMD -40°C +85°C 93/86% 2000 (Minimum)kh ±0.6% ±0.4% 75mV Pk-Pk
RS庫存編號 827-5561
製造零件編號TSR 1-2412SM
BrandTRACOPOWER
HK$83.00
單位
4.6 → 36V dc 1.2V dc 1 1A - Through Hole TO-220 -40°C +85°C 62 % @ Vin max, 74 % @ Vin min >5350000h 0.6% 0.2% 50 (1.2 → 6.5 VDC Models) mV, 75 (9 → 15 VDC Models) mV
RS庫存編號 122-7216
製造零件編號SR05S3V3
BrandXP Power
HK$58.08
單位
4.75 → 34V dc 3.3V dc 1 500mA 1.65W Through Hole SIP -40°C +85°C 91% 4.5Mh ±0.6% ±0.5% 60mV Pk-Pk
RS庫存編號 190-8119
製造零件編號MAX1678EUA+
HK$29.88
/個 (每包:2個)
單位
5.5V dc 3.16 → 3.44V dc 1 90mA - Surface Mount - -40°C +85°C 90% - - - -
RS庫存編號 173-7022
製造零件編號OKI-78SR-3.3/1.5-W36E-C
HK$51.92
單位
12V dc 3.3V dc 1 1.5A 4.95W Through Hole TO-220 -40°C +85°C 85.5% 78700000h ±0.4% ±0.3% 40mV Pk-Pk
RS庫存編號 193-4017
BrandRS PRO
HK$44.83
單位
13 → 36V dc 9V dc 1 1A - PCB Mount - -40°C +85°C 95/90% 2000 (Minimum)kh ±0.6% ±0.4% 75mV Pk-Pk
RS庫存編號 193-3990
BrandRS PRO
HK$59.20
單位
8 → 36V dc 5V dc 1 1A - Surface Mount SMD -40°C +85°C 93/85% 2000 (Minimum)kh ±0.6% ±0.4% 75mV Pk-Pk
RS庫存編號 193-3985
BrandRS PRO
HK$3,160.47
1 Tray of 56 Pack(s)
Tray(s)
15 → 36V dc 12V dc 1 500mA - - - -40°C +85°C 94/91% 2000 (Minimum)kh ±1.5% ±0.4% 75mV Pk-Pk
RS庫存編號 906-8452
製造零件編號TSR 2-0515
BrandTRACOPOWER
HK$98.41
單位
3 → 5.5V dc 1.5V dc 1 2A - Through Hole SIP -40°C +85°C 91% 13520000h Maximum of 1% Maximum of 0.5% 50mV Pk-Pk
RS庫存編號 833-7555
製造零件編號PSC248-7IR
HK$3,533.42
單位
29 → 80V dc 24.14V dc 1 8A 192W Chassis Mount, Wall Mount C03 -25°C +71°C 95% 2800000h 160mV 220mV 155mV Pk-Pk
RS庫存編號 122-7213
製造零件編號SR05S12
BrandXP Power
HK$58.08
單位
15 → 34V dc 12V dc 1 500mA 6W Through Hole SIP -40°C +85°C 96% 4.5Mh ±0.6% ±0.5% 60mV Pk-Pk