NCP1587A - Low Voltage Synchronous Buck Controller
onsemi
Download the NCP1587A datasheet PDF.
This datasheet also covers the NCP1587 variant, as both devices belong to the same low voltage synchronous buck controller family and are provided as variant models within a single manufacturer datasheet.
General Description
Pin No.
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).
Key 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 NCP1587/A comes in an 8.
pin SOIC package. Features.
Input Voltage Range from 4.5 to 13.2 V.
275 kHz (NCP1587) and 200 kHz (NCP1587A) Internal Oscillator.
Full PDF Text Transcription for NCP1587A (Reference)
Note: Below is a high-fidelity text extraction (approx. 800 characters) for
NCP1587A. For precise diagrams, and layout, please refer to the original PDF.
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 devic...
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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 drive capability, other efficiency enhancing 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.
NCP1587A Datasheet
