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L5973ADTR
Integrated Circuits (ICs)

L5973ADTR

Active
STMicroelectronics

DC-DC SWITCHING BUCK (STEP DOWN) REGULATOR, ADJUSTABLE, 4V-36VIN, 1.235V-35VOUT, 2AOUT, HSOP-8 ROHS COMPLIANT: YES

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L5973ADTR
Integrated Circuits (ICs)

L5973ADTR

Active
STMicroelectronics

DC-DC SWITCHING BUCK (STEP DOWN) REGULATOR, ADJUSTABLE, 4V-36VIN, 1.235V-35VOUT, 2AOUT, HSOP-8 ROHS COMPLIANT: YES

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Technical Specifications

Parameters and characteristics for this part

SpecificationL5973ADTR
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 8008$ 2.14
NewarkEach (Supplied on Full Reel) 2500$ 1.10
5000$ 1.09
10000$ 1.08

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.