SS6577 Datasheet External NMOS Step-Down PWM Controller

Manufacturer: Silicon Standard

Datasheet Details

Part number	SS6577
Manufacturer	Silicon Standard
File Size	534.10 KB
Description	External NMOS Step-Down PWM Controller
Datasheet	SS6577 Datasheet

The SS6577 is a current-mode switching regulator controller that drives an external N-channel power MOSFET using a fixed frequency architecture.

It uses an external divider to adjust the output voltage from 0.8V to 20V with excellent line and load regulation.

A maximum high duty-cycle limit of 95% provides low dropout operation which extends operating time in battery-operated systems.

SS6577 External NMOS Step-Down PWM Controller.

N-Channel MOSFET Drive Operating input voltage from 4.5V to 24V Wide output Range : 0.8V to 20V Reference: ±1.5% 0.8V Reference Low dropout operation : 95% duty cycle Fixed constant frequency - 500kHz Low standby current, I Q typically 720µA Logic-control micropower shutdown Output overvoltage protection Internal diode for bootstrapped gate drive Current-mode operation for excellent line and load transient response Available in 8-lead SO or MSOP packages.

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