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zxre252asa-7

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by Ray

Diodes Incorporated Voltage Reference, SOT-23. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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ZXRE252ASA-7

Diodes Incorporated · Voltage Reference · SOT-23

ZXRE252ASA-7 from Diodes Incorporated, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 ANODE power_in Anode terminal - the reference/return node for the shunt regulator. All specified voltages (VKA, VREF) are measured relative to this pin. Typically tied to the low-side rail (system ground) in a shunt-regulator topology.
2 REF input Reference input to the internal error amplifier. The device servos the cathode current so that V(REF)-V(ANODE) equals the internal bandgap reference (2.495V typ). Reference input current is 1µA typ (4µA max); tie directly to CATHODE for VKA = VREF, or to the tap of an R1/R2 divider from CATHODE to ANODE to program VOUT = (1 + R1/R2)·VREF up to 36V.
3 CATHODE power_in Cathode terminal - the regulated shunt node that sinks current from the supply through a series resistor to hold the programmed voltage. Rated VKA up to 40V absolute max (36V recommended), IKA 0.065mA to 100mA operating (150mA absolute max). Dynamic output impedance is 0.2Ω typ; off-state leakage is 0.05µA typ at VKA = 36V.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-23
Category PMIC
Pins 3

Ordering variants

  • ZXRE252ASA-7
  • ZXRE252ASA-7ZXRE252BSA-7
  • ZXRE252ASA-7ZXRE250ASA-7
  • ZXRE252ASA-7ZXRE250BSA-7
  • ZXRE252ASA-7ZXRE250AW5-7
  • ZXRE252ASA-7ZXRE250BW5-7

CAD (KiCad official)

  • Symbol: ZXRE252ASA-7
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Diodes Incorporated datasheet (None pp, sha256 8cc0985319ab55ca, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF

Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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