Linear Regulator includes output voltages of 1.8, 3.0, and 3.1 V.
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Press Release Summary:
Available with 6 fixed output voltages from 1.8-5.0 V, SPX3819 Low Dropout (LDO) Linear Regulator delivers up to 500 mA of continuous output current with 340 mV of dropout voltage and low-noise output of 40 µVRMS. Regulator is provided in 5-pin SOT-23 package and operates at 2.5-16 V with supply current of 90 µA. Offerings include reverse-battery protection, foldback current limit, and load dump protection.
Original Press Release:
Tiny 500mA LDOs Now Available with Low Fixed Output Voltages of 1.8V, 3.0V and 3.1V
(Milpitas, CA - July 30, 2003) - Sipex Corporation (NASDAQ:SIPX) today announced that the SPX3819, a Low Dropout (LDO) Linear Regulator, is now available in 1.8V, 3.0V, and 3.1V fixed output voltages. These tiny LDOs can deliver up to 500mA of continuous output current with 340mV of dropout voltage and low noise output of 40uVRMS. The SPX3819 is an ideal solution for portable applications such as cell phones and PDAs, where low dropout, low noise, and small size are a must.
To optimize battery life, the SPX3819 operates at a range of 2.5V to 16V with very low supply current of 90uA, which drops to nearly zero in shutdown. Low dropout voltage of 340mV at full load current allows small voltage differential operation further extending operation time. The SPX3819 also reduces board space by providing fixed output voltages which eliminate the need for external voltage setting resistors. Other key features include reverse battery protection, foldback current limit, and load dump protection.
SPX3819 Typical Features
SOT-23 Package
500mA Output Current
Low Dropout Voltage: 340mV(typ) at 500mA
2.5V to 16V Input Voltage Range
Low Quiescent Current: 90uA
Low Noise: 40uVRMS(10Hz to 100kHz)
Fixed Outputs: 1.8V, 2.5V, 3.0V, 3.1, 3.3V, 5.0V
Reverse-Battery Protection
Current and Thermal Limit
Pricing and Availability
The SPX3819-1.8, SPX3819-3.0, SPX3819-3.1, join the existing SPX3819 family of LDOs, which is also available with fixed output voltages of 2.5V, 3.3V, and 5.0V. All versions are currently available in a 5-pin SOT-23 package. Pricing starts at $.75 each in 1k quantities.
About Sipex Power Management Products:
Power management ICs deliver key benefits to portable power and distributed power applications, providing better power efficiency, increased miniaturization and more power at lower voltage levels. This product group includes Low Drop Out linear regulators, DC to DC switching regulators, PWM controllers, charge pumps, and microprocessor supervisors. In 2002, Sipex expanded its power management product line with a new family of white LED drivers needed in virtually every consumer portable device. Applications for the Sipex's power products include personal computers and peripherals, battery powered hand-held devices such as PDAs and cellular telephones, and data communications products.
About Sipex:
Sipex Corporation is a semiconductor company that designs, manufactures and markets high performance, value-added analog integrated circuits (ICs). Sipex serves the broad analog signal processing market with power management, interface, and optical storage ICs for use in computing, communications, and networking infrastructure. The company is headquartered in Milpitas, California with additional sales offices in Belgium, China, Germany, Japan, South Korea and Taiwan. Sipex sells direct and through distribution channels.
