厂商:Freescale
类别:16位单片机
厂商:Linear
类别:A/D 数据转换器
厂商:Panasonic
类别:PhotoMOS(MOSFET输出光电耦合器)
厂商:
类别:滤波器单元式部件
类别:片式磁珠/珠式滤波器
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特点Wide Input Range: 3.3V to 60V3A Peak Switch CurrentBurst Mode? Operation: 100μA Quiescent Current** Low Shutdown Current: I Q < 1μA Power Good Flag with Programmable ThresholdLoad Dump Protection to 60V500kHz Switching FrequencySaturating Switch Design: 0.1Ω On-ResistancePeak Switch Current Maintained OverFull Duty Cycle Range*1.25V Feedback Reference VoltageEasily SynchronizableSoft-Start CapabilitySmall 16-Pin Thermally Enhanced TSSOP Package典型应用典型应用描述The LT ? 3435 is a 500kHz monolithic buck switching regulator that accepts input voltages up to 60V. A high efficiency 3A, 0.1Ω switch is included on the die along with all the necessary oscillator, control and logic circuitry. Current mode topology is used for fast transient response and good loop stability.Innovative design techniques along with a new high voltage process achieve high efficiency over a wide input range. Efficiency is maintained over a wide output current range by employing Burst Mode operation at low currents, utilizing the output to bias the internal circuitry, and by using a supply boost capacitor to fully saturate the power switch. Patented circuitry maintains peak switch current over the full duty cycle range.* Shutdown reduces input supply current to less than 1μA. External synchronization can be implemented by driving the SYNC pin with logic-level inputs. A single capacitor from the CSS pin to the output provides a controlled output voltage ramp (soft-start). The device also has a power good flag with a programmable threshold and time-out and thermal shutdown protection.The LT3435 is available in a 16-pin TSSOP package with an exposed pad leadframe for low thermal resistance.?