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Analog Devices MAX17545ATP+T — DC-DC Power Modules
Analog Devices

MAX17545ATP+T Buck Regulator, 4.5V-42V Input, 1.7A Output

MPNMAX17545ATP+T
End of Life

Maxim Integrated Himalaya series, MAX17545ATP+T, step-down (buck) switching regulator, adjustable output, 1.7A output current, 4.5V to 42V input range, 100kHz to 2.2MHz switching frequency, synchronous rectifier, -40°C to 125°C junction temperature, 20-TQFN (4x4) package.

$4.6Ref. price · indicative, final on quote
MAX17545ATP+T datasheet
Packaging20-WFQFN 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

MAX17545ATP+T Technical Specifications
ParameterValue
SeriesHimalaya
Output typeAdjustable
Mounting typeSurface Mount
Voltage - input4.5V
Voltage - output37.8V
Voltage - output (Min (Fixed))0.9V
Current - output1.7A
Frequency100kHz ~ 2.2MHz
Number of outputs1
Operating temperature-40°C ~ 125°C (TJ)
PackageTape & Reel (TR); Cut Tape (CT)
FunctionStep-Down
TopologyBuck
Case20-WFQFN Exposed Pad
Output configurationPositive
Synchronous rectifierYes

Product details

Wide-input buck for industrial and automotive rails

The Maxim Integrated MAX17545ATP+T is a Himalaya family step-down (buck) switching regulator that accepts a 4.5V to 42V input range and delivers up to 1.7A at an adjustable output from 0.9V to 37.8V. It integrates a synchronous rectifier, so no external Schottky diode is needed, and the switching frequency is programmable from 100kHz to 2.2MHz, letting you trade efficiency against inductor size. The device operates over a -40°C to 125°C junction temperature range, making it suitable for under-hood automotive, industrial 24V rails, and outdoor telecom equipment where the supply can swing from cold-crank to load-dump transients.

1.7A output with synchronous rectification

The 1.7A continuous output covers point-of-load rails for sensors, small motors, or auxiliary logic supplies. The synchronous rectifier eliminates the need for an external Schottky diode.

Active lifecycle and sourcing posture

The MAX17545ATP+T carries an Active product status with ROHS3 compliance.

Package and footprint

Housed in a 20-TQFN (4x4 mm) with exposed pad, the part is surface-mount and requires a thermal via array under the pad to carry dissipation.

Frequently asked questions

What is the output current rating of MAX17545ATP+T?

The continuous output current rating is 1.7A. This is the maximum the regulator can deliver under rated conditions; actual capability depends on input voltage, switching frequency, and thermal management.

Can MAX17545ATP+T replace MAX17544?

The MAX17545ATP+T and MAX17544 are both Himalaya buck regulators with the same 4.5V to 42V input range and adjustable output down to 0.9V. The key difference is output current: the MAX17545ATP+T is rated for 1.7A, while the MAX17544 is a lower-current variant. Pin compatibility depends on the specific package option — verify the footprint against your layout before substituting.