LM43603PWPR The Texas Instruments LM43603PWPR is a synchronous step-down voltage converter. It operates with an input voltage range of 3.5V to 36V and can deliver up to 3A of output current.
Mfr Part #:

LM43603PWPR

Available from 6 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments LM43603PWPR is a synchronous step-down voltage converter. It operates with an input voltage range of 3.5V to 36V and can deliver up to 3A of output current.
Total Stock: 72,189 pcs
$ Price Range: $1.97

LM43603PWPR Available from 6 distributors

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LM43603PWPR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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AEC Qualified
Automotive Grade
Duty Cycle
Industrial Grade
Medical Grade
Military Grade
Operating Temperature
Output Current
Quiescent Current
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Topology

LM43603PWPR Description

Short technical summary and product information.

The Texas Instruments LM43603PWPR is a high-performance synchronous step-down (buck) voltage converter designed for a wide input voltage range of 3.5V to 36V. It can deliver a maximum output current of 3A.

 

Key electrical specifications include a low quiescent current of 27 µA, enabling high efficiency at light loads. The output voltage can be adjusted from 1V to 28V. The device features an adjustable switching frequency ranging from 200 kHz to 2.2 MHz, with a default of 500 kHz, and supports frequency synchronization to an external clock.

 

This converter offers several integrated features for robust operation, including overcurrent protection, power-good flag, soft start, and thermal shutdown protection. It is designed to be stable with various capacitor types and meets EN55022/CISPR 22 EMI standards.

 

The LM43603PWPR is available in HTSSOP (PWP) 16 and VSON (DSU) 16 packages, measuring 32 mm² (5 mm × 6.4 mm) and 20 mm² (5 mm × 4 mm) respectively. The operating temperature range is -40°C to 125°C.

LM43603PWPR Quick Information

Product Type: Synchronous Step-Down Voltage Converter
Canonical Name: LM43603PWPR 3.5V to 36V, 3A Synchronous Step-Down Voltage Converter
Subcategory: Step-Down Voltage Converter

LM43603PWPR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

LM43603PWPR Estimated Pricing

Qty Low High
1+ $1.97 $1.97

Estimated market price range - modelled values for guidance only, not live distributor offers.

LM43603PWPR Features

  • 3.5V to 36V input voltage range.
  • 3A maximum output current.
  • 27µA quiescent current in regulation.
  • Adjustable frequency from 200kHz to 2.2MHz.
  • Integrated synchronous rectification.

LM43603PWPR Applications

  • Power management applications.
  • Step-down voltage conversion.
  • Systems requiring low quiescent current.
  • EMI sensitive designs.

LM43603PWPR FAQs

6 frequently asked questions generated from this part’s specifications.
What is the input voltage range for the LM43603PWPR?

The input voltage range is 3.5V to 36V.

What is the maximum output current of the LM43603PWPR?

The maximum output current is 3A.

What is the quiescent current of the LM43603PWPR?

The typical quiescent current is 27 µA.

What is the operating temperature range for this device?

The operating temperature range is -40°C to 125°C.

What is the adjustable frequency range for the LM43603PWPR?

The adjustable frequency range is 200 kHz to 2.2 MHz.

What package options are available for the LM43603PWPR?

It is available in HTSSOP (PWP) 16 and VSON (DSU) 16 packages.

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