The L7987L device is a step-down monolithic switching regulator able to deliver up to 2 A DC. The output voltage adjustability ranges from 0.8 V to almost VIN. The embedded switchover feature on the VBIAS pin maximizes the efficiency at light load. The adjustable current limitation, designed to select the inductor RMS current accordingly with the nominal output current, and the high switching frequency capability make the size of the application compact. Pulse-by-pulse current sensing with digital frequency foldback implements an effective constant current protection over the different application conditions. The peak current foldback decreases the stress of the power components in heavy short-circuit condition. The PGOOD open collector output can also implement output voltage sequencing during the power-up phase. Multiple devices can be synchronized sharing the SYNCH pin to prevent beating noise in low noise applications like sensors with A/D conversion.
|DS10340: 61 V, 2 A asynchronous step-down switching regulator with adjustable current limitation||3.0||2 MB|
|L7987L Pspice model||1.0||89 KB|
|Brochure Power management guide||09.2017||3 MB|
|STEVAL-ISA198V1||ST||2 A step down DC - DC switching regulator (VIN = 4.5 V to 60 V) based on the L7987L|
|Part Number||Package||Packing Type||Marketing Status||Unit Price (US$) *||Quantity||ECCN (EU)||ECCN (US)||Country of Origin||More info||Order from ST||Order from Distributors|
|L7987LTR||HTSSOP16||Tape And Reel||Active : Product is in volume production||1||1000||NEC||EAR99||-||MORE INFO||DISTRIBUTOR AVAILABILITY|
|L7987L||HTSSOP16||Tube||Active : Product is in volume production||1||1000||NEC||EAR99||-||MORE INFO||DISTRIBUTOR AVAILABILITY|
|Part Number||Marketing Status||Package||Grade||RoHS Compliance Grade||Material Declaration**|
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