Purchase SPX2945, In-stock SPX2945 From SeekIC.
Part Number: SPX2945
Description: The SPX2945 is a low power voltage regulator. This device is an excellent choice for use in battery-po...
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SPX2945
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DataSheet
General Description
SPX2945 General Description
The SPX2945 is a low power voltage regulator. This device is an excellent choice for use in battery-powered pplications such as cordless telephones, radio control systems, and portable computers. The SPX2945 features very low quiescent current (100A Typ.) and very low dropout voltage. This includes a tight initial tolerance of 1% max and very low output temperature coefficient, making the SPX2945 useful as a lowpower 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 SPX2945 is offered in 3-pin TO-220 package, SO-8 (same pin out as SPX2951), SOT-223, surface mount 3-Pin TO-252, 3-Pin TO-263 packages and 5-Pin TO-263.
The regulator output voltage (of the 8-pin SO-8) may be pin-strapped for a 3.3V and 5.0V or programmed from 1.24V to 20V with an external pair of resistors. Look for SPX2951 for 150mA and SPX2954 for 250mA applications.
SPX2945 Maximum Ratings
Power Dissipation .....................................................Internally Limited
Lead Temp. (Soldering, 5 Seconds) ........................................... .260
Storage Temperature Range .......................................-65 to +150
Operating Junction Temperature Range .......................40 to +125
Input Supply Voltage ......................................................-20V to +26V
ABSOLUTE MAXIMUM RATINGS
Feedback Input Voltage ................................................ -1.5V to +26V
Shutdown Input Voltage ................................................-0.3V to +26V
Error Comparator Output .............................................. -0.3V to +26V
ESD Rating ............................................................................ ..2kV Min
Lead Temp. (Soldering, 5 Seconds) ........................................... .260
Storage Temperature Range .......................................-65 to +150
Operating Junction Temperature Range .......................40 to +125
Input Supply Voltage ......................................................-20V to +26V
ABSOLUTE MAXIMUM RATINGS
Feedback Input Voltage ................................................ -1.5V to +26V
Shutdown Input Voltage ................................................-0.3V to +26V
Error Comparator Output .............................................. -0.3V to +26V
ESD Rating ............................................................................ ..2kV Min
SPX2945 Features
` Output 3.3V, 5.0V at 400mA Output
` Very Low Quiescent Current, 100A
` Low Dropout Voltage, 420mV at 400mA
` Extremely Tight Load and Line Regulation
` Very Low Temperature Coefficient
` Current & Thermal Limiting
` Error Flag Warns Of Output Dropout
` Logic-Controlled Electronic Shutdown
` Output Programmable From 1.24V to 20V (for SO-8)
` Very Low Quiescent Current, 100A
` Low Dropout Voltage, 420mV at 400mA
` Extremely Tight Load and Line Regulation
` Very Low Temperature Coefficient
` Current & Thermal Limiting
` Error Flag Warns Of Output Dropout
` Logic-Controlled Electronic Shutdown
` Output Programmable From 1.24V to 20V (for SO-8)
SPX2945 Connection Diagram
SPX2945
PDF/DataSheet Download
- Datasheet: SPX2945
- File Size: 103432 KB
- Manufacturer: SIPEX [Sipex Corporation]
- Click here to Download
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SPX2945 Relative Products
SPX2941
The SPX2941 is a 1A, accurate voltage regulator with a low drop out voltage of 280mV(typ.) at1A. These regulators are specifically designed for low voltage applications that require a lowdropout voltage and a fast transient response. They are fully fault pro...
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