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LM53603AQPWPTQ1 The Texas Instruments LM53603AQPWPTQ1 is an automotive-grade synchronous step-down DC/DC switching regulator. It offers a wide input voltage range and a 3A maximum output current.
Mfr Part #:

LM53603AQPWPTQ1

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments LM53603AQPWPTQ1 is an automotive-grade synchronous step-down DC/DC switching regulator. It offers a wide input voltage range and a 3A maximum output current.
✓ Total Stock: 3,874 pcs
$ Price Range: $3.15

LM53603AQPWPTQ1 Available from 2 distributors

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✓ Non-Authorised
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Xingangxin ✓
Non-Authorised Inventory information
2,774 pcs
On Request
2774 pcs On Request 1 On Request On Request On Request On Request On Request
PROSOFT ELECTRONICS ✓
Non-Authorised Inventory information
1,100 pcs
On Request
1100 pcs On Request 1 On Request On Request On Request On Request On Request
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LM53603AQPWPTQ1 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Current
Duty Cycle
Features
Frequency
Function
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Current
Output Type
Supplier Device Package
Supplier Package
Synchronous Rectifier
Topology
Voltage
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LM53603AQPWPTQ1 Description

Short technical summary and product information.

The LM53603AQPWPTQ1 from Texas Instruments is a high-performance, automotive-qualified synchronous step-down DC/DC converter. Designed for demanding automotive applications, it accepts an input voltage range from 3.5V up to 36V, withstanding transients to 42V.

 

This regulator provides a maximum output current of 3A and features a fixed switching frequency of 2.1MHz, contributing to a smaller overall solution size. The output voltage is adjustable, with options for 5V or 3.3V fixed outputs also available, and offers a tolerance of ±2%. Key electrical features include low quiescent current of 24µA at no load and a shutdown current of 1.7µA, enhancing power efficiency.

 

The LM53603AQPWPTQ1 operates within an ambient temperature range of -40°C to 125°C (TJ) and is housed in a 16-pin HTSSOP package. Its surface mount design facilitates integration into compact PCB layouts. The device includes essential protection features such as overcurrent protection and power good indication, alongside operational features like forced PWM mode and frequency synchronization.

LM53603AQPWPTQ1 Quick Information

Product Type: DC DC Switching Regulator
Series: LM53603-Q1
Canonical Name: Texas Instruments LM53603AQPWPTQ1 Synchronous Step-Down Converter
Subcategory: Power Management ICs

LM53603AQPWPTQ1 Compliance

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

LM53603AQPWPTQ1 Estimated Pricing

Qty Low High
1+ $3.15 $3.15

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

LM53603AQPWPTQ1 Features

  • Automotive grade synchronous step-down converter.
  • Wide 3.5V to 36V input voltage range.
  • 3A maximum output current capability.
  • Fixed 2.1MHz switching frequency.
  • Adjustable output voltage option.

LM53603AQPWPTQ1 Applications

  • Automotive power supply systems.
  • DC/DC conversion in vehicles.
  • Powering electronic control units.
  • General purpose automotive regulation.

LM53603AQPWPTQ1 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range for the LM53603AQPWPTQ1?

The input voltage range is from 3.5 V to 36 V, withstanding transients up to 42 V.

What is the maximum output current of the LM53603AQPWPTQ1?

The maximum output current is 3 A.

What is the switching frequency of this DC DC switching regulator?

The switching frequency is fixed at 2.1 MHz.

What is the operating temperature range for the LM53603AQPWPTQ1?

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

What package type is the LM53603AQPWPTQ1 supplied in?

It is supplied in a 16-HTSSOP package for surface mounting.

Is the LM53603AQPWPTQ1 RoHS compliant?

The RoHS status is RoHS3 Compliant.

What is the Moisture Sensitivity Level (MSL) for this component?

The Moisture Sensitivity Level is 1 Unlimited.

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