AP431A Datasheet, PDF (1/10 Pages) Advanced Power Electronics Corp. – ADJUSTABLE PRECISION SHUNT REGULATOR

Advanced Power
Electronics Corp.
AP431A
ADJUSTABLE PRECISION SHUNT
REGULATOR
Features
Description
• Precision reference voltage
AP431A : 2.495V ± 0.5%
• Sink current capability: 200mA
• Minimum cathode current for regulation: 300μA
• Equivalent full-range temp coefficient: 30 ppm/^oC
• Fast turn-on response
• Low dynamic output impedance: 0.2Ω
• Programmable output voltage to 36V
• Low output noise.
• Packages: TO-92,SOT-23, SOT-25 and SOP-8
SOT-89
• RoHS Compliant & Halogen Free Product
The AP431A are 3-terminal adjustable precision
shunt regulators with guaranteed temperature
stability over the applicable extended commercial
temperature range. The output voltage may be set at
any level greater than 2.495V(V_REF) up to 36V merely
by selecting two external resistors that act as a
voltage divider network. These devices have a
typical output impedance of 0.2Ω. Active output
circuitry provides very sharp turn-on characteristics,
making these devices excellent improved
replacements for Zener diodes in many applications.
The precise (+/-) 1% Reference voltage tolerance of
the AP431A make it possible in many applications to
avoid the use of a variable resistor, consequently
saving cost and eliminating drift and reliability
problems associated with it.
Ordering Information
A P 431AX -X
Package
T : TO-92
N/NR : SOT-23
Y : SOT-25
M : SOP-8
G: SOT-89
Typical Application Circuit
VIN
+
Cin
AAPP443311A
Reference Voltage
Tolerance :
A : +/- 0.5%
B : +/- 1%
VOUT
R1
+
Cout
R2
www.a-power.com.tw
VOUT = (1+R1/R2)VREF
Precision Regulator
1
20130401V6.2