RS Components
Our website uses cookies and similar technologies to provide you with a better service while searching or placing an order, for analytical purposes and to personalise our advertising to you.

Wurth Elektronik, 3.3 V LDO Regulator, 1A, 1-Channel, 3.5% 3-Pin, SIP 173010378

31 In stock for delivery within 7 working day(s)
Add to Basket

Price (ex. GST) Each


(exc. GST)


(inc. GST)



Packaging Options:
RS Stock No.:
Mfr. Part No.:
Wurth Elektronik
COO (Country of Origin):
unitsPer unit
1 - 4$9.58
5 - 9$9.24
10 - 24$8.78
25 +$8.15

The FDSM series of the MagI3C Power Module family is a fixed output voltage, fully integrated dc/dc power supply. The module integrates the switching power stage, control circuitry, inductor and capacitors all in one package.The module requires no external components for operation reducing design effort and complexity to a minimum. The FDSM ensures fast time to market and low development costs. It is pin compatible with the common 78xx linear regulator series. The high efficiency reduces the power dissipation and in many cases a heatsink and assembly parts are unnecessary. 12V to 3.3V conversion achieves up to 87% efficiency. 12V to 5V conversion achieves up to 91% efficiency. The standard THT package allows for easy assembly.

Peak efficiency up to 93%
Current capability up to 1A
Input voltage range: 7 to 28V
Output voltage: 3.3 or 5V
Continuous output power: 3.3 or 5W
Integrated capacitors and inductor
Low output voltage ripple:
typ.15mV (3.3V) and 25mV (5Vout) at 1A load
Output voltage accuracy: 3.5% typ.
Fixed 300 kHz switching frequency
Current mode control
Pulse skipping for high efficiency at light loads
Internal soft-start
Thermal shutdown
Short circuit protection
Cycle by cycle current limit
Output over-voltage protection
-40°C to 85°C ambient operating temperature range
RoHS & REACH compliant
UL94V-0 package material
EN55022 Class B compliant
Point-of-Load from 18V, 15V, 12V, 9V rail
Replacement for linear regulators
Interface and microcontroller supply
General purpose

Output Voltage3.3 V
Maximum Output Current1A
Package TypeSIP
Output TypeFixed
Mounting TypeThrough Hole
Minimum Input Voltage7 V
Maximum Input Voltage28 V
Pin Count3
Power Rating5W
Minimum Operating Temperature-40 °C
Maximum Operating Temperature+85 °C
Number of Outputs1
Quiescent Current75µA
Dimensions11.6 x 8.5 x 10.5mm
Reference Voltage0.8V
Line Regulation±1 %
Load Regulation±1.5 %