AMS431L
1.2V SHUNT REGULATOR
FEATURES
•
Trimmed 0.5% Tolerance
•
Wide Operating Current Range 60µA to 100mA
µ
•
Low Reference Input Current 0.4µA
µ
•
Low Dynamic Output Impedance
•
Low Output Noise
•
Nominal Temperature Range to 85°C
°
•
Temperature-Compensated: 60ppm/°C
°
APPLICATIONS
•
Battery Powered Systems
•
Switching Power Supplies
•
Adjustable Power Supplies
•
Telecommunications
•
Error Amplifiers
•
Notebook/Personal Computer
•
Monitors/ VCR/ TV
•
Pagers
GENERAL DESCRIPTION
The AMS431L is a three-terminal adjustable shunt regulator with guaranteed temperature stability over the entire range of
operation. The output voltage can be set to any value between 1.24V (V
REF
) and 20V by adding two external resistors. The
AMS431L features 0.5% initial tolerance, low dynamic output impedance and operates over a wide current range. Due to the
sharp turn-on characteristics this device is an excellent replacement for zener diodes in many applications.
AMS431 is available in TO-92, SOT-89, 3 pin SOT-23 and 5 pin SOT-23 packages.
ORDERING INFORMATION:
TOL.
±0.5%
±1.0%
±2.0%
TO-92
AMS431LAN
AMS431LBN
AMS431LCN
PACKAGE TYPE
SOT-89
AMS431LAL
AMS431LBL
AMS431LCL
3 LEAD SOT-23
AMS431LAM
AMS431LBM
AMS431LCM
5 LEAD SOT-23
AMS431LAM1
AMS431LBM1
AMS431LCM1
OPERATING
TEMP. RANGE
-40 to +85° C
-40 to +85° C
-40 to +85° C
PIN CONNECTIONS
TO-92
Plastic Package (N)
SOT-89
(L)
3L SOT-23
(M)
5L SOT-23
(M1)
ANODE
1
2
3
N/C 1
N/C 2
5 ANODE
1
REF
ANODE
CATHODE
2
3
REF
CATHODE
CATHODE 3
4 REFERENCE
REF
ANODE CATHODE
Bottom View
Top View
Top View
Top View
1
Advanced Monolithic Systems http://www.ams-semitech.com