PSSI2021SAY NXP Semiconductors, PSSI2021SAY Datasheet - Page 7

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PSSI2021SAY

Manufacturer Part Number
PSSI2021SAY
Description
Manufacturer
NXP Semiconductors
Datasheet

Specifications of PSSI2021SAY

Lead Free Status / RoHS Status
Compliant

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NXP Semiconductors
PSSI2021SAY_3
Product data sheet
Voltage reference
The PSSI2021SAY supplies a constant current to the Zener diode regardless of supply
voltage variation, resulting in a constant reference voltage (see
Fig 7.
Voltage reference application diagram
Rev. 03 — 27 August 2009
GND
Constant current source in SOT353 package
VS
REXT
IOUT
I
out
R
006aaa026
ext
V
V
CC
ref
PSSI2021SAY
Figure
7).
© NXP B.V. 2009. All rights reserved.
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