The AZ7500B/C is a voltage mode pulse width modu- lation switching regulator control circuit designed pri- marily for power supply control.
The AZ7500B/C consists of a reference voltage circuit, two error amplifiers, an on-chip adjustable oscillator, a dead-time control (DTC) comparator, a pulse-steering control flip-flop, and an output control circuit. The pre- cision of voltage reference (VREF) is improved up to ± 1% through trimming and this provides a better output voltage regulation. The AZ7500B/C provides for push- pull or single-ended output operation, which can be selected through the output control.
The difference between AZ7500B and AZ7500C is that they have 4.95V and 5V reference voltage respectively.
The AZ7500B/C is available in standard packages of DIP-16 and SOIC-16.