Product category: Power Supply ICs and Controllers
News Release from: Maxim Integrated Products | Subject: MAX5033 and MAX5035
Edited by the Electronicstalk Editorial Team on 7 November 2003
Buck convertors cut quiescent current
The MAX5033 (0.5A output current) and MAX5035 (1A output current) join the MAXPower family of high-voltage DC/DC buck convertors
Both devices feature the lowest, no-load quiescent current available on the market (350uA at 76V input voltage). These devices operate over a wide 6.5 to 76V input voltage range and can withstand up to 80V transient voltage spikes at the input. The MAX5033 and MAX5035 each include an internal high-side N-channel mosfet and require no external compensation, thus making power-supply design simple.
This article was originally published on Electronicstalk on 7 November 2003 at 8.00am (UK)
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Additionally, both devices use off-the-shelf inductors readily available from specified vendors.
The MAX5033 and MAX5035 operate at a 125kHz fixed switching frequency and feature thermal shutdown and indefinite short-circuit protection.
Each device includes a shutdown pin for sequencing multiple power supplies.
Power conversion efficiencies over 90% can easily be achieved due to the low internal mosfet on-resistance, low operating current and low switching losses.
Versions with fixed 3.3, 5, 12V, and adjustable output voltages are available.
The MAX5033 and MAX5035 operate over the 0 to +85C temperature range and are available in surface mount 8-pin SO or 8-pin DIL packages.
Prices start at $1.76 for MAX5033 and $1.90 for MAX5035 (1000-up, FOB USA).
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