SG2525AP

SG2525AP is a SG3525A series regulating pulse width modulator. This integrated circuit is designed to offer improved performance and lowered external parts count when used in designing all types of switching power supplies. The on-chip + 5.1V reference is trimmed to ±1% and the input common-mode range of the error amplifier includes the reference voltage eliminating external resistors. A sync input to the oscillator allows multiple units to be server or a single unit to be synchronized to an external system clock. A single resistor between the CT and the discharge terminals provides a wide range of dead time adjustment. This device also features built-in soft-start circuitry with only an external timing capacitor required. A shutdown terminal controls both the soft-start circuity and the output stages, providing instantaneous turn off through the PWM latch with pulsed shutdown, as well as soft-start recycle with longer shutdown commands.

• 5.1V reference trimmed to ±1%
• 100Hz to 500KHz oscillator range
• Separate oscillator sync terminal
• Adjustable deadtime control, dual source/sink output drivers
• Internal soft-start
• Pulse-by-pulse shutdown
• Input undervoltage lockout with hysteresis
• Latching PWM to prevent multiple pulses
• SO16 package
• Operating ambient temperature range from -25 to 85°C