Product category: Power Supply ICs and Controllers
News Release from: Linear Technology Corp | Subject: LTC3204B-3.3/5
Edited by the Electronicstalk Editorial Team on 23 November 2005
Charge pump doublers shrink supply size
Linear Technology has released the LTC3204B-3.3/5 charge pump doublers in 2 x 2mm DFN packages.
Linear Technology has released the LTC3204B-3.3/5 charge pump doublers in 2 x 2mm DFN packages Featuring low-noise constant-frequency (1.2MHz) operation, the LTC3204B-3.3 generates a regulated boosted output voltage of 3.3V from a minimum input voltage of 1.8V (two AA cell alkaline or NiMH) at output currents up to 50mA, whereas the LTC3204B-5 produces a 5V output from a minimum 2.7V (Li-ion battery) input voltage at currents up to 150mA
This article was originally published on Electronicstalk on 28 Jul 2004 at 8.00am (UK)
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The LTC3204B is ideal for applications sensitive to variable-frequency operation.
The device's patented constant-frequency architecture ensures both low input and low output ripple, especially at light loads, to minimise switching noise.
Other features include automatic soft start circuitry to prevent excessive inrush current during startup, load disconnect from the input during shutdown, plus current limit and thermal shutdown circuitry.
The LTC3204B's high switching frequency enables the use of tiny external ceramic capacitors, saving size and cost.
Low external parts count of one flying capacitor and two bypass capacitors, in addition to the low profile DFN package, make the LTC3204B an extremely compact solution for space-constrained applications.
The LTC3204BEDC-3.3 and LTC3204BEDC-5 are available in the low-profile 6-lead DFN (2 x 2 x 0.75mm) package.
1000-piece pricing starts at $1.50 each. Request a free brochure from Linear Technology Corp ...
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