Datasheet Details
Part number:
NCP1587A, NCP1587
Manufacturer:
File Size:
407.52 KB
Description:
Low voltage synchronous buck controller.
Note:
This datasheet PDF includes multiple part numbers: NCP1587A, NCP1587.
Please refer to the document for exact specifications by model.
NCP1587A, NCP1587, Low Voltage Synchronous Buck Controller
Pin No.
Symbol Description 1 BST Supply rail for the floating top gate driver.
To form a boost circuit, use an external diode to bring the desired input voltage to this pin (cathode connected to BST pin).
Connect a capacitor (CBST) between this pin and the PHASE pin.
Typical values for CBST range
NCP1587, NCP1587A Low Voltage Synchronous Buck Controller The NCP1587 and NCP1587A are low cost PWM controllers designed to operate from a 5 V or 12 V supply.
These devices are capable of producing an output voltage as low as 0.8 V.
These 8 pin devices provide an optimal level of integration to reduce size and cost of the power supply.
The NCP1587/A provide a 1 A gate driver design and an internally set 275 kHz (NCP1587) and 200 kHz (NCP1587A) oscillator.
In addition to the 1 A gate dri
NCP1587A Features
* of the gate driver include adaptive non
* overlap circuitry. The devices also incorporate an externally compensated error amplifier and a capacitor programmable soft
* start function. Protection features include programmable short circuit protection and under voltage lockout (UVLO). The
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