Part number:
NCP1580
Manufacturer:
File Size:
187.94 KB
Description:
Low voltage synchronous buck controller.
Datasheet Details
Part number:
NCP1580
Manufacturer:
File Size:
187.94 KB
Description:
Low voltage synchronous buck controller.
NCP1580, 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 r
NCP1580 Low Voltage Synchronous Buck Controller The NCP1580 is a voltage mode PWM controller designed to operate from a 5.0 V or 12 V supply and produce an output voltage as low as 0.8 V.
This 8 pin device provides an optimal level of integration to reduce size and cost of the power supply.
The NCP1580 has a fixed 350 kHz oscillator and soft start function.
The NCP1580 provides a 1.5 A floating gate driver design to drive N Channel MOSFETs in a synchronous configuration.
NCP1580 Features
* include thermal shutdown and undervoltage lockout (UVLO). The NCP1580 is available in an 8
* pin SOIC package. Features
* Input Voltage Range from 4.5 V to 13.2 V
* 350 kHz Internal Oscillator
* Boost Pin Operates to 26.5 V
* Voltage Mode PWM Control
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