ZHT431_06 Datasheet, PDF (1/12 Pages) Zetex Semiconductors – Adjustable precision Zener shunt regulator

ZHT431
Adjustable precision Zener shunt regulator
Description
The ZHT431 is a three terminal adjustable
shunt regulator offering excellent temperature
stability and output current handling capability
up to 100mA. The device offers extended
operating temperature range working from -55
to +125°C. The output voltage may be set to
any chosen voltage between 2.5 and 20 volts
by selection of two external divider resistors.
Features
• Surface mount SOT223 and SOT23
packages
• 2% and 1% tolerance
• Maximum temperature coefficient
67 ppm/°C
• Temperature compensated for operation
over the full temperature range
• Programmable output voltage
• 50␮A to 100mA current sink capability
• Low output noise
• Wide temperature range -55 to +125°C
The devices can be used as a replacement for
zener diodes in many applications requiring an
improvement in zener performance.
Applications
• Series and shunt regulator
• Voltage monitor
• Over voltage / under voltage protection
• Switch mode power supplies
Pinout information
V_REF
V_Z
GND
GND GND
V_Z
SOT223
Pinout - Top view
V_REF
SOT23
Pinout - Top view
Ordering information
Order reference
ZHT431C01L
ZHT431C01STOB
ZHT431C01STZ
ZHT431C02L
ZHT431C02STOB
ZHT431C02STZ
ZHT431F01TA
ZHT431F02TA
ZHT431G01TA
ZHT431G02TA
Tolerance Package Part mark Status Reel size Quantity
(%)
(inches) per reel
1
TO92 ZHT43101 Obsolete Loose
4000
1
TO92 ZHT43101 Obsolete 12.5
1500
1
TO92 ZHT43101 Obsolete Concertina 1500
2
TO92 ZHT43102 Obsolete Loose
4000
2
TO92 ZHT43102 Obsolete 12.5
1500
2
TO92 ZHT43102 Obsolete Concertina 1500
1
SOT23 43C Released
7
3000
2
SOT23 43D Released
7
3000
1
SOT223 ZHT43101 Released
7
1000
2
SOT223 ZHT43102 Released
7
1000
Tape
width
-
-
-
-
-
-
8mm
8mm
12mm
12mm
Issue 5 - October 2006
1
© Zetex Semiconductors plc 2006
www.zetex.com