Advanced Monolithic Systems, Inc.

6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140

Advanced

AMS431L

Monolithic

1.2V SHUNT REGULATOR

Systems

FEATURES

APPLICATIONS

•• Trimmed 0.5% Tolerance

•• Battery Powered Systems

•• Wide Operating Current Range 60µµA to 100mA

•• Switching Power Supplies

•• Low Reference Input Current 0.4µµA

•• Adjustable Power Supplies

•• Low Dynamic Output Impedance

•• Telecommunications

•• Low Output Noise

•• Error Amplifiers

•• Nominal Temperature Range to 85°°C

•• Notebook/Personal Computer

•• Temperature-Compensated: 60ppm/°°C

•• Monitors/ VCR/ TV

•• Pagers

GENERAL DESCRIPTION

The AMS431L is a three-terminal adjustable shunt regulator with guaranteed temperature stability over the entire range of

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.

PACKAGE TYPE

OPERATING

TO-92

SOT-89

3 LEAD SOT-23

5 LEAD SOT-23

TEMP. RANGE

±0.5%

AMS431LAN

AMS431LAL

AMS431LAM

AMS431LAM1

-40 to +85

° C

±1.0%

AMS431LBN

AMS431LBL

AMS431LBM

AMS431LBM1

-40 to +85

° C

±2.0%

AMS431LCN

AMS431LCL

AMS431LCM

AMS431LCM1

-40 to +85

° C

PIN CONNECTIONS

TO-92

SOT-89

3L SOT-23

5L SOT-23

Plastic Package (N)

(L)

(M)

(M1)

1

2

3

REF

ANODE

CATHODE

1

2

3

CATHODE

ANODE

REF

CATHODE

REF

ANODE

N/C

ANODE

CATHODE

REFERENCE

N/C

1

2

5

3

4

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