Linear Regulator features low dropout voltage of 45 mV.
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Press Release Summary:
With input voltage down to 1.7 V, 300 mA VLDO(TM) Model LTC3035 provides adjustable output voltage from 0.4-3.6 V. To allow operation at low input voltages, unit includes integrated charge pump converter that provides headroom for internal LDO circuitry. Output voltage accuracy of ±2%, quiescent current of 100 µA, and shutdown current of 1 µA make device suited for battery-powered handheld devices. Regulator is housed in 3 x 2 x 0.75 mm, 8-lead DFN package.
Original Press Release:
300mA VLDO Operates Down to VIN = 1.7V & Features 45mV Dropout
MILPITAS, CA - December 20, 2005 - Linear Technology Corporation announces the LTC3035, a 300mA very low dropout (VLDO(TM)) linear regulator with input voltage capability down to 1.7V. Featuring a low internal reference voltage with corresponding adjustable output voltage operation from 0.4V to 3.6V, the LTC3035 also maintains an extremely low dropout voltage of only 45mV at full load current. To allow operation at low input voltages, the LTC3035 includes an integrated charge pump converter that provides the necessary headroom for the internal LDO circuitry. This low input voltage capability enables performance in applications ranging from Li-Ion or 2xAA alkaline cell to low input to low output voltage conversion systems. The LTC3035's tight output voltage ±2% accuracy, low quiescent and shutdown currents of 100uA and 1uA, respectively, combined with fast transient response and small solution footprint with few external components, make it ideal for battery-powered handheld devices such as Bluetooth-enabled devices, cellular phones, media players, handheld medical and industrial instruments.
The LTC3035 regulator optimizes stability and transient response with low ESR, ceramic output capacitors as small as 1uF. Internal safety circuitry includes short-circuit and reverse output current protection, plus output current and thermal limiting.
The LTC3035EDDB in the 8-lead DFN (3mm x 2mm x 0.75mm) package offers a thermally efficient, highly compact solution footprint and is available from stock. Pricing starts at $1.29each in 1,000-piece quantities.
Summary of Features: LTC3035
Wide VIN Range: 1.7V to 5.5V
Low Dropout Voltage: 45mV Typical at 300mA
Adjustable Output Range: 0.4V to 3.6V
Output Current: Up to 300mA
Built-In Charge Pump Generates High Side Bias
±2% Voltage Accuracy over Temperature, Supply & Load
Fast Transient Recovery
Low Operating Current: 100uA TYP
Low Shutdown Current: 1uA TYP
Stable with Low ESR, Ceramic Output Capacitors Down to 1uF
Short-Circuit & Reverse Output Current Protection
Thermal Overload & Output Current Limiting Protection
8-Lead DFN (3mm x 2mm) Package
Company Background
Linear Technology Corporation, a manufacturer of high performance linear integrated circuits, was founded in 1981, became a public company in 1986 and joined the S&P 500 index of major public companies in 2000. Linear Technology products include high performance amplifiers, comparators, voltage references, monolithic filters, linear regulators, DC-DC converters, battery chargers, data converters, communications interface circuits, RF signal conditioning circuits, and many other analog functions. Applications for Linear Technology's high performance circuits include telecommunications, cellular telephones, networking products such as optical switches, notebook and desktop computers, computer peripherals, video/multimedia, industrial instrumentation, security monitoring devices, high-end consumer products such as digital cameras and MP3 players, complex medical devices, automotive electronics, factory automation, process control, and military and space systems. For more information, visit www.linear.com.
LT and LTC are registered trademarks and VLDO is a trademark of Linear Technology Corp.
North America and General Information
John Hamburger
Tel: (408) 432-1900 ext. 2419
jhamburger@linear.com
Doug Dickinson
Tel: (408) 432 1900 ext. 2233
ddickinson@linear.com
