Skip to main content
Analog Devices LT1963EST-1.8#PBF — Discrete Semiconductors
Analog Devices

LT1963EST-1.8#PBF LDO Regulator, 1.8V Fixed, 1.5A, SOT-223-3

MPNLT1963EST-1.8#PBF
End of Life

Analog Devices LT1963EST-1.8#PBF, LDO Voltage Regulator, 1.8V Fixed Output, 1.5A Output, 20V Input Max, SOT-223-3, -40°C to 125°C.

$6.84Ref. price · indicative, final on quote
LT1963EST-1.8#PBF datasheet
PackagingTO-261-4, TO-261AA
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

LT1963EST-1.8#PBF Technical Specifications
ParameterValue
Output typeFixed
Mounting typeSurface Mount
Voltage - input20V
Voltage dropout0.55V @ 1.5A
Voltage - output (Min (Fixed))1.8V
Current - output1.5A
Current - supply120 mA
Current - quiescent1.5 mA
Operating temperature-40°C ~ 125°C
PSRR63dB (120Hz)
PackageTube
CaseTO-261-4, TO-261AA
Control featuresEnable
Protection featuresOver Current, Over Temperature, Reverse Polarity
Number of regulators1
Output configurationPositive

Product details

Built-in protection reduces external circuitry

Over-current, over-temperature, and reverse-polarity protection are integrated, so you can omit the usual external clamp diodes and current-limit resistors in many designs. The enable pin (Control Features) allows the regulator to be shut down for sequencing or power-save modes. Quiescent current sits at 1.5 mA — not an ultra-low-Iq part, but reasonable for a 1.5 A LDO where the load current dominates the power budget.

Active lifecycle — no end-of-life concern

The LT1963EST-1.8#PBF carries an Active product status and is ROHS3 compliant. There is no last-time-buy or NRND notice on this order code. The SOT-223-3 package is a common footprint, so second-sourcing or alternate pin-compatible parts exist in the LT1963 family if dual-source requirements arise.

Frequently asked questions

What is the equivalent of LT1963EST-1.8#PBF?

The closest functional equivalent within the same family is the LT1963AES8-1.5#PBF, which is a fixed 1.5 V output version in an SOIC-8 package. For a 1.8 V fixed output in a different package, the LT1963AES8-1.8#PBF (SOIC-8) is a pin-compatible alternate if the SOT-223-3 footprint is not required. Both share the same 1.5 A rating, 63 dB PSRR, and protection features.

What is LT1963EST-1.8#PBF's PSRR rating?

The PSRR is 63 dB at 120 Hz. This is the ripple rejection at the fundamental line frequency — relevant when the input comes from a rectified AC supply or a switching regulator with 100/120 Hz ripple content.

Is LT1963EST-1.8#PBF RoHS compliant?

Yes, it is ROHS3 compliant. The #PBF suffix in the order code indicates lead-free (Pb-free) termination finish.