TC1303BDM-DDBK1: Buck Regulator with LDO

Summary

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.

Features:

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

Specifications

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	2025-09