Design contains obsolete parts

TC1303BDM-DDBK1: Buck Regulator with LDO


The TC1303B Dual-Output Regulator with Power-Good Output Demo Board can be used to evaluate the TC1303B device over the input voltage range and output current range for both the synchronous buck regulator output and the low-dropout linear regulator output.


  • 500 mA synchronous inductor-based dc-dc BUCK converter + 300 mA LDO with Power Good Output.

  • Output voltages set to Buck VOUT1 = 1.8V, LDO VOUT2 = 2.7V


Manufacturer Microchip Technology
Category AC/DC and DC/DC Conversion
Sub-Category DC/DC SMPS - Multi Output
Eval Board Part Number TC1303BDM-DDBK1-ND
Eval Board Supplier Microchip Technology
Eval Board Board not Stocked
Topology Step Down
Outputs and Type 2 Non-Isolated
Voltage Out: Highest Current First 1.8V, 2.7V
Current Out 500mA, 300mA
Voltage In 2.7 ~ 5.5 V
Efficiency @ Conditions >80%, 2.7 ~ 5.5V in, 1.8V @ 5 mA ~ 500 mA
Voltage Out Range
Features Light Load Mode
Over Current Protection
Power Good Output
Short Circuit Protection
Shutdown, Enable, Standby
Under Voltage Protection, Brown-Out
Switching Frequency 2 MHz
Standby Current [Typical] 50 nA
Quiescent Current [Typical] 65 µA
Component Count + Extras 9 + 9
Internal Switch Yes
Design Author Microchip Technology
Application / Target Market Cell Phones
Portable Devices
USB Powered Devices
Standby Current [Maximum] 1 µA
Quiescent Current [Maximum] 110 µA
Main I.C. Base Part TC1303B
Date Created By Author
Date Added To Library

Eval Board


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