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ONSEMI MC34151DG
Integrated Circuits (ICs)

L5973AD

Active
STMicroelectronics

DC/DC SWITCHING REGULATOR, ADJUSTABLE, BUCK (STEP DOWN), SINGLE OUTPUT, 1.235 V TO 35 V, 2 A, 500 KH… MORE

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ONSEMI MC34151DG
Integrated Circuits (ICs)

L5973AD

Active
STMicroelectronics

DC/DC SWITCHING REGULATOR, ADJUSTABLE, BUCK (STEP DOWN), SINGLE OUTPUT, 1.235 V TO 35 V, 2 A, 500 KH… MORE

Technical Specifications

Parameters and characteristics for this part

SpecificationL5973AD
Current - Output2 A
Frequency - Switching500 kHz
FunctionStep-Down
Mounting TypeSurface Mount
Number of Outputs1
Operating Temperature [Max]150 °C
Operating Temperature [Min]-40 °C
Output ConfigurationPositive
Output TypeAdjustable
Package / CaseExposed Pad, 8-SOIC
Package / Case [x]0.154 in
Package / Case [y]3.9 mm
Supplier Device Package8-HSOP
Synchronous RectifierFalse
TopologyBuck
Voltage - Input (Max) [Max]36 V
Voltage - Input (Min) [Min]4 V
Voltage - Output (Max) [Max]35 V
Voltage - Output (Min/Fixed)1.235 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$
DigikeyN/A 983$ 2.68
NewarkEach 1$ 2.57
10$ 1.75
100$ 1.57
500$ 1.41
1000$ 1.18
4000$ 1.09
6000$ 1.05

Description

General part information

L5973AD Series

The L5973AD is a step down monolithic power switching regulator with a switch current limit of 2A so it is able to deliver more than 1.5 A DC current to the load depending on the application conditions.

The output voltage can be set from 1.235 V to 35 V. The high current level is also achieved thanks to an SO8 package with exposed frame, that allows to reduce the RthJAdown to approximately 40 °C/W.

The device uses an internal P-Channel D-MOS transistor (with a typical of 200 mΩ) as switching element to avoid the use of bootstrap capacitor and guarantee high efficiency.