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Analog Devices MAX38903BATB+ — Analog & Data Acquisition
Analog Devices

MAX38903BATB+ LDO Regulator, 1A, 0.6V-5V, 10-TDFN, PSRR 70dB

MPNMAX38903BATB+
End of Life

Analog Devices MAX38903BATB+, LDO voltage regulator, positive programmable output, 1A, 0.6V to 5V, PSRR 70dB ~ 40dB (1kHz ~ 1MHz), dropout 0.3V @ 1A, 10-TDFN-EP, -40°C to 125°C.

$3.45Ref. price · indicative, final on quote
MAX38903BATB+ datasheet
Packaging10-WFDFN Exposed Pad
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

MAX38903BATB+ Technical Specifications
ParameterValue
Output typeProgrammable
Mounting typeSurface Mount
Voltage - input5.5V
Voltage dropout0.3V @ 1A
Voltage - output5V
Voltage - output (Min (Fixed))0.6V
Current - output1A
Current - quiescent2 mA
Operating temperature-40°C ~ 125°C (TJ)
PSRR70dB ~ 40dB (1kHz ~ 1MHz)
PackageTube
Case10-WFDFN Exposed Pad
Control featuresEnable
Protection featuresOver Current, Over Temperature, Reverse Polarity
Number of regulators1
Output configurationPositive

Product details

Industrial temperature grade and package fit

Rated for -40°C to 125°C junction temperature, the MAX38903BATB+ suits outdoor telecom, automotive under-hood, and factory-floor environments. The 10-TDFN exposed-pad package (3x3 mm body) aids thermal conduction to the PCB ground plane.

Protection and control features

Built-in overcurrent, overtemperature, and reverse-polarity protection cover the common fault conditions in point-of-load designs. An enable pin allows the regulator to be sequenced or shut down for power savings. The 2 mA quiescent current is typical for a 1A LDO with this protection suite — not a micropower part, but acceptable for always-on rails where the load current dominates the power budget.

Lifecycle and sourcing posture

The MAX38903BATB+ carries an active lifecycle status and ROHS3 compliance. For BOM planning, this part is suitable for both new designs and ongoing production.

Frequently asked questions

Does MAX38903BATB+ have overcurrent protection?

Yes, it includes overcurrent protection as part of its protection feature set, along with overtemperature and reverse polarity protection.

Is MAX38903BATB+ a suitable replacement for MAX38902?

The MAX38903BATB+ is a higher-current variant (1A vs the MAX38902's lower rating) in the same family. Pin compatibility should be verified against the respective datasheets, but the output voltage range and package are similar. For a direct cross, confirm the specific MAX38902 ordering code's output current and package.