Techcode TD1722
The TD1722 is a voltage mode, fixed 200kHz/300kHz/600kHz Wide 5V to 12V Supply Voltage switching frequency, synchronous buck converter. The APW Power-On-Reset Monitoring on VCC 8722 allows wide input voltage that is either a single 5~1 Excellent Output Voltage Regulations 2V or two supply voltage(s) for various applications. In addition, the TD1722 also 125%Over-Voltage Protection integrates excel- lent protection functions.GENERAL DESCRIPTION
FEATURES
The TD1722 is a voltage mode, fixed 200kHz/300kHz/600kHz● Wide 5V to 12V Supply Voltage switching frequency, synchronous buck converter. The APW
● Power-On-Reset Monitoring on VCC 8722 allows wide input voltage that is either a single 5~1
● Excellent Output Voltage Regulations 2V or two supply voltage(s) for various applications. A
● 0.6V Internal Reference for TD1722/A/D power-on-reset (POR) circuit monitors the VCC supply voltage
● 0.8V Internal Reference for TD1722B/C to prevent wrong logic controls.
● ±0.6% Over-Temperature Range A built- in soft-start circuit prevents the output voltages from
● Integrated Soft-Start over- shoot as well as limits the input current. An internal
● Voltage Mode PWM Operation with External 0.6V/0.8V Temperature-compensated reference voltage Compensation with high accuracy is designed to meet the requirement of
● Up to 90%DutyRatio for Fast Transient Response low out- put voltage applications. The APW8722 provides
● Constant Switching Frequency excel- lent output voltage regulations against load
● 300kHz ±10% for TD1722/B current variation.