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STV8131

ST Microelectronics
Part Number STV8131
Manufacturer ST Microelectronics
Description 5V AND 8V VOLTAGE REGULATOR
Published Jul 8, 2005
Detailed Description STV8131 5V AND 8V VOLTAGE REGULATOR PRODUCT PREVIEW FEATURES s Output Currents up to 1A s Fixed Precision Output 1 Volt...
Datasheet PDF File STV8131 PDF File

STV8131
STV8131

Overview
STV8131 5V AND 8V VOLTAGE REGULATOR PRODUCT PREVIEW FEATURES s Output Currents up to 1A s Fixed Precision Output 1 Voltage 5V ± 2% s Fixed Precision Output 2 Voltage 8V ± 2% s Output 1 with Disable by TTL Input s Output 2 with Disable by TTL Input s Short Circuit Protection at both Outputs s Thermal Protection s Low Drop Output Voltage DESCRIPTION The STV8131 is a monolithic dual positive voltage regulator designed to provide fixed precision output voltages of 5V and 8V at currents up to 1A.
Each output can be disabled separately by a TTL input.
Short circuit and thermal protections are included.
HEPTAWATT (Plastic Package) ORDER CODES: STV8131 Figure 1.
Pin Connections 7 6 5 4 3 2 1 Tab connected to Pin 4 OUTPUT 1 OUTPUT 2 DISABLE FOR OUTPUT 1 GROUND DISABLE FOR OUTPUT 2 INPUT 2 INPUT 1 8131-01.
eps September 2003 This is preliminary information on a new product now in development.
Details are subject to change without notice.
1/5 1 STV8131 Figure 2.
Block Diagram INPUT 1 INPUT 2 1 REFERENCE 2 OUTPUT 1 7 OUTPUT 1 PROTECTION DISABLE 5 DISABLE DISABLE 3 DISABLE OUTPUT 2 6 OUTPUT 2 4 CIRCUIT DESCRIPTION The STV8131 is a dual voltage regulator with separate Disable for each output.
The two regulation parts are supplied from one voltage reference circuit trimmed by zener zap during EWS test.
Since the supply voltage of this last is connected at Pin 1 (VIN1), the regulator 2 will not work if Pin 1 is not supplied.
ABSOLUTE MAXIMUM RATINGS Symbol VIN VDIS IO1, 2 Pt TSTG TJ Parameter DC Input Voltage Pin 1 Disable Input Voltage Pin 3-5 Output Currents Power Dissipation Storage Temperature unction Temperature Value 20 20 Internally Limited Internally Limited - 65 to + 150 0 to + 150 Unit V V The outputs stage have been realized in darlington configuration with a drop typical 1.
2V.
For each output a disable circuit switches-off this output if a voltage lower than 0.
8V is applied at corresponding Pin (Pin 3 for output 2, Pin 5 for output 1).
°C °C...


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