Purchase SPX3940, In-stock SPX3940 From SeekIC.
Part Number: SPX3940
Description: The SPX3940/41/42 is a low power voltage regulator. This device is an excellent choice for battery-powered applic...
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SPX3940
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DataSheet
General Description
SPX3940 General Description
The SPX3940/41/42 is a low power voltage regulator. This device is an excellent choice for battery-powered applications such as cordless telephones, radio control systems and portable computers. The SPX3940/41/42 features very low quiescent current (100µA Typ.) and very low dropout voltage. This includes a tight initial tolerance of 1% max and 2% max., and very low output temperature coefficient, making the SPX3940/41/42 useful as a low-power voltage reference.
The error flag output feature is used as power-on reset for warning of a low output voltage, due to a falling voltage input of batteries. Another feature is the logic-compatible shutdown input which enables the regulator to be switched on and off. The SPX3940/41/42 is offered in 3-pin and 5-pin TO-220 package SOT-223, and surface mount TO-263 packages.
The regulator output voltage (of the 8-pin SO-8 and 5-pin TO-220 & TO-263) may be pin-strapped for a 3.3V or programmed from 1.24V to 29V with an external pair of resistors.
SPX3940 Maximum Ratings
Power Dissipation......................................Internally Limited
Input Supply Voltage ..................................................+7.5V
Lead Temp. (Soldering, 5 Seconds) ..........................260°C
Feedback Input Voltage ..................................1.5V to +30V
Storage Temperature Range .....................-65° to +150°C
Shutdown Input Voltage..................................-0.3V to +30V
Operating Junction Temperature Range (Note 9)
Error Comparator Output ................................-0.3V to +30V
SPX3940/41/42..................................-40C° to +125°C
ESD Rating ................................................................2KV Min
Input Supply Voltage ..................................................+7.5V
Lead Temp. (Soldering, 5 Seconds) ..........................260°C
Feedback Input Voltage ..................................1.5V to +30V
Storage Temperature Range .....................-65° to +150°C
Shutdown Input Voltage..................................-0.3V to +30V
Operating Junction Temperature Range (Note 9)
Error Comparator Output ................................-0.3V to +30V
SPX3940/41/42..................................-40C° to +125°C
ESD Rating ................................................................2KV Min
SPX3940 Features
• Output Accuracy 3.3V, @ 1A Output
• Very Low Quiescent Current
• Low Dropout Voltage
• Extremely Tight Load And Line Regulation
• Very Low Temperature Coefficient
• Current & Thermal Limiting
• Error Flag Warns Of Output Dropout
• Very Low Quiescent Current
• Low Dropout Voltage
• Extremely Tight Load And Line Regulation
• Very Low Temperature Coefficient
• Current & Thermal Limiting
• Error Flag Warns Of Output Dropout
SPX3940 Typical Application
• Battery Powered Systems
• Cordless Telephones
• Radio Control Systems
• Portable/Palm Top/Notebook Computers
• Portable Consumer Equipment
• Portable Instrumentation
• Automotive Electronics
• SMPS Post-Regulator
• Voltage Reference
• Cordless Telephones
• Radio Control Systems
• Portable/Palm Top/Notebook Computers
• Portable Consumer Equipment
• Portable Instrumentation
• Automotive Electronics
• SMPS Post-Regulator
• Voltage Reference
SPX3940
PDF/DataSheet Download
- Datasheet: SPX3940
- File Size: 173337 KB
- Manufacturer: SIPEX [Sipex Corporation]
- Click here to Download
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