Datasheets
PM8903TR by: STMicroelectronics

3 A step-down monolithic switching regulator

Part Details for PM8903TR by STMicroelectronics

Results Overview of PM8903TR by STMicroelectronics

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Applications Energy and Power Systems Transportation and Logistics Renewable Energy Automotive

PM8903TR Information

PM8903TR by STMicroelectronics is a Switching Regulator or Controller.
Switching Regulator or Controllers are under the broader part category of Power Circuits.

A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.

Price & Stock for PM8903TR

Part # Distributor Description Stock Price Buy
DISTI # 497-13226-1-ND
DigiKey IC REG BUCK ADJ 3A 16VFQFPN Min Qty: 1 Lead time: 12 Weeks Container: Cut Tape (CT), Tape & Reel (TR) 3400
In Stock
  • 1 $2.1600
  • 10 $1.5960
  • 25 $1.4552
  • 100 $1.3005
  • 250 $1.2268
  • 500 $1.1824
  • 1,000 $1.1459
  • 4,000 $1.0910
  • 8,000 $1.0707
$1.0707 / $2.1600 Buy Now
DISTI # PM8903TR
Avnet Americas - Tape and Reel (Alt: PM8903TR) RoHS: Not Compliant Min Qty: 4000 Package Multiple: 4000 Lead time: 111 Weeks, 0 Days Container: Reel 0
RFQ

Part Details for PM8903TR

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PM8903TR Part Data Attributes

PM8903TR STMicroelectronics
Buy Now Datasheet
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PM8903TR STMicroelectronics 3 A step-down monolithic switching regulator
Part Life Cycle Code Obsolete
Ihs Manufacturer STMICROELECTRONICS
Package Description 3 X 3 MM, 1 MM HEIGHT, ROHS COMPLIANT, VFQFP-16
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Factory Lead Time 111 Weeks
Samacsys Manufacturer STMicroelectronics
Additional Feature ADJUSTABLE OUTPUT VOLTAGE DOWN TO 0.6 V, ALSO OPERATES FROM 2.9 VOLT TO 5.5 VOLT SUPPLY
Analog IC - Other Type SWITCHING REGULATOR
Control Mode VOLTAGE-MODE
Control Technique PULSE WIDTH MODULATION
Input Voltage-Max 6 V
Input Voltage-Min 2.8 V
Input Voltage-Nom 3.3 V
JESD-30 Code S-XQCC-N16
Length 3 mm
Number of Functions 1
Number of Terminals 16
Package Body Material UNSPECIFIED
Package Code HVQCCN
Package Shape SQUARE
Package Style CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Seated Height-Max 1 mm
Surface Mount YES
Switcher Configuration BUCK
Switching Frequency-Max 1100 kHz
Terminal Form NO LEAD
Terminal Pitch 0.5 mm
Terminal Position QUAD
Width 3 mm

Alternate Parts for PM8903TR

This table gives cross-reference parts and alternative options found for PM8903TR. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of PM8903TR, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
TPS53311RGTR Texas Instruments Check for Price 2.9V to 6V Input, 3A Synchronous Step-Down Converter with Eco-Mode and Smooth PWM 16-VQFN -40 to 85 PM8903TR vs TPS53311RGTR

PM8903TR Related Parts

PM8903TR Frequently Asked Questions (FAQ)

  • STMicroelectronics recommends a 4-layer PCB with a solid ground plane and thermal vias to ensure optimal thermal performance. A thermal pad on the bottom of the package should be connected to the ground plane.

  • To ensure reliable operation at high temperatures, it is essential to follow the recommended thermal design guidelines, use a heat sink if necessary, and ensure that the device is operated within the specified temperature range.

  • The critical timing parameters for the PM8903TR include the switching frequency, rise and fall times, and dead time. These parameters should be carefully considered to ensure proper operation and to avoid electromagnetic interference (EMI).

  • To troubleshoot issues with the PM8903TR, start by checking the input voltage, output voltage, and current. Verify that the device is properly configured and that the input and output capacitors are properly sized. Use an oscilloscope to check the waveforms and identify any anomalies.

  • When designing an EMI filter for the PM8903TR, consider the frequency range, impedance, and attenuation requirements. A common-mode choke, X-capacitors, and Y-capacitors can be used to filter out electromagnetic interference.

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