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TD1722

Techcode
Part Number TD1722
Manufacturer Techcode
Description Single Buck Voltage Mode PWM Controller
Published May 23, 2016
Detailed Description Techcode® Single Buck Voltage Mode PWM Controller DATASHEET TD1722 General Description Features The TD1722 is a volt...
Datasheet PDF File TD1722 PDF File

TD1722
TD1722

Overview
Techcode® Single Buck Voltage Mode PWM Controller DATASHEET TD1722 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.
The controller’s over-current protection  200kHz ±10% for TD1722C monitors the out- put current by using the voltage drop  600kHz ±10% for TD1722A/D across the RDS (ON) of low-side MOSFET, eliminating the  Integrated Bootstrap Forward P-CH MOSFET need for a cur- rent sensing resistor that features high  50%Under-Voltage Protection efficiency and low cost.
In addition, the TD1722 also  125%Over-Voltage Protection integrates excel- lent protection functions.
The over-voltage  Adjustable Over-Current Protection Threshold protection (OVP), under-voltage protection (UVP).
OVP circuit  Using the RDS(ON) of Low-Side MOSFET which monitors the FB voltage to prevent the PWM output  Shutdown Control byCOMP from over voltage, and UVP circuit which monitors the FB  SOP-8P Pac...


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