LM53603AMPWPR AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

LM53603AMPWPR product

LM53603AMPWPR

Voltage Regulators - DC DC Switching Regulators

3 A buck regulatoradjustable output3.9 V to 36 V input2.1 MHzsynchronous converterHTSSOP-16 PowerPAD

LM53603AMPWPR is a 3 A adjustable synchronous buck regulator for converting 3.9 V to 36 V input rails to 3.3 V to 10 V outputs at a nominal 2.1 MHz switching frequency.

Best for

  • 3 A industrial point-of-load buck supplies
  • Battery-fed systems with wide input voltage
  • Low-ripple rails requiring forced PWM capability

Avoid if

  • Applications requiring output voltage below 3.3 V
  • Designs without sufficient PCB copper area and exposed-pad thermal grounding

Check before use

  • Validate startup and loop response with selected output capacitors
  • Keep VIN-to-PGND input bypass loop short and wide
  • Do not leave EN, FPWM, or SYNC floating

Key specifications

Output current
3 A maximum
Input range
3.9 V to 36 V
Adjustable output
3.3 V to 10 V
Switching frequency
2.1 MHz nominal
Package
HTSSOP-16 PowerPAD

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
-
MSL
Level 3, 260 °C peak, 168 hours
ECCN
-
HTSUS
-

Application

Industrial power suppliesBattery-powered equipmentLow-EMI power rails

CAD Models

Download ECAD models for LM53603AMPWPR: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
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PCB Footprint
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3D Model
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Where to Buy

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Alternative components

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Design and risk insights

Questions & answers

LM53603AMPWPR is an adjustable-output, synchronous step-down DC-DC regulator from Texas Instruments. It is rated for up to 3 A output current and is housed in a 16-lead HTSSOP PowerPAD package.