PCN20070602

Features:

l  Very Accurate Reference Voltage : 0.15% Typical
l  High Stability under Capacitive Load
l  Low Temperature Deviation: 4.5mV Typical
l  Low Equivalent Full-Range Temperature Coefficient
o
                with 20PPM/ C Typical
l  Low Dynamic Output Resistance: 0.2W Typical
l  Sink Current Capacity from 1mA to 100mA
l  Low Output Noise
l  Available in 5 Packages: TO-92-3, SOT-23,
              SOT-89, SOP-8 and SOT-25
l  All AME!s Lead Free Products Meet RoHS
    Standards


Application

l  Adjustable Power Supplies
l  Linear Regulators
l  Battery Operated Computer
l  Portable Electronics
l  Instrumentation
l  Switching Power Supply
l  Mother Board
l  LCD Monitor
l  Note Book Computer


Description

The AME431B series ICs are 3-terminal adjustable
shunt regulator with guaranteed temperature stability over
a full operation range. These ICs AME431B feature sharp turn-on
characteristics, low temperature coefficient and low out-
put impendance, which make them ideal substitutes  for
Zener diodes in applications such as switching power
supply, charger and other adjustable regulators.
  The reference is set to 2.5V for AME431Bxxxxx25. The
output voltage can be set to 2.5V to 36V for V =2.5V
REF
part type with two external resistors.
The AME431B precision reference is offered in two  ref-
erence tolerance: 0.5% and 1.0%
The 5 main packages of AME431B have low thermal impendance
o
which allows operation over a wide range of -40 C to
o
+125 C.