From Texas Instruments, the TPS40210 is a 4.5-V to 52-V nonsynchronous boost controller for industrial and battery-powered applications where the output is a regulated current instead of a regulated voltage. The device, which uses fixed-frequency current-mode control, supports design configurations that require a grounded source n-channel FET, including boost, flyback and SEPIC topologies.
Device type: nonsynchronous boost controller
Input voltage range: 4.5 V to 52 V
Output current: on-chip gate-driver sources and sinks 400 mA typ.
Quiescent current: 2.5 mA max
Features: programmable soft start, several overcurrent protection features including a current feedback threshold mechanism in the control loop; internal slope compensation, adjustable oscillator frequency, integrated low-side driver, external synchronization capability, 700-mV reference or a 260-mV reference in related model (TPS40211)
Operating temperature range: -40ºC to +125ºC
Packaging: 10-pin MSOP PowerPAD and SON packages
RoHS compliant? yes
Target applications: industrial and battery-powered applications as well as LED lighting
Pricing: $1.10 each in 1,000-piece quantities
Availability: available now
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