AME, Inc.
1
AME385-2.5 Micropower Voltage Reference Diode
n Typical Application
n Functional Block Diagram
l Small packages: SOT-23, TO-92, SO-8
l Tolerates capacitive loads
l Fixed reverse breakdown voltage of 2.5V
l Tight voltage tolerance ------- ±0.20%, ±0.5%
l Wide operating current ------- 20µA to 20mA
l Wide temperature range ----- -40oC to +85oC
l Low temperature coefficient --100ppm/oC (max)
l Excellent transient response
The AME385-2.5 is a micropower 2-terminal band-gap
voltage regulator diode. It operates over a 20µA to 20mA
current range. Each circuit is trimmed at wafer sort to
provide a ±0.20% and ±0.50% initial tolerance. The de-
sign of the AME385-2.5 allows for a large range of load
capacitances and operating currents. The low start-up
current makes these part ideal for battery applications.
Analog Microelectronics offers this part in a TO-92 and
SO-8 package as well as the space saving SOT-23.
l Portable electronics
l Power supplies
l Computer peripherals
l Data acquisition systems
l Battery chargers
l Consumer electronics
n General Description
n Features
n Applications
GND
VR
Bandgap
Cell
Current
Shunt
VS
0.1mF
Value optional
IRS =
VR = 2.5V
VR
VS - VR
RS