Datasheet Linear Technology LT1243 — Ficha de datos

LT1241 Series
High Speed Current Mode
Pulse Width Modulators U DESCRIPTIO FEATURES
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в–  The LT В®1241 series devices are 8-pin, fixed frequency,
current mode, pulse width modulators. They are improved
plug compatible versions of the industry standard UC1842
series. These devices have both improved speed and
lower quiescent current. The LT1241 series is optimized
for off-line and DC/DC converter applications. They contain a temperature-compensated reference, high gain error amplifier, current sensing comparator and a high
current totem pole output stage ideally suited to driving
power MOSFETs. Start-up current has been reduced to
less than 250ВµA. Cross-conduction current spikes in
the output stage have been eliminated, making 500kHz …