PSSI2021SAY View Datasheet(PDF) - NXP Semiconductors.

Part Name

Description

Manufacturer

PSSI2021SAY

Constant current source in SOT353 package

NXP Semiconductors. 

NXP Semiconductors

PSSI2021SAY

Constant current source in SOT353 package

Voltage reference

The PSSI2021SAY supplies a constant current to the Zener diode regardless of supply

voltage variation, resulting in a constant reference voltage (see Figure 7).

VS

VCC

Rext

REXT

IOUT

Iout

Vref

GND

006aaa026

Fig 7. Voltage reference application diagram

PSSI2021SAY_3

Product data sheet

Rev. 03 — 27 August 2009

© NXP B.V. 2009. All rights reserved.

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