Key facts
- Brand
- MICROCHIP
- Model
- TC1303A
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-06-01
Start here
MICROCHIP TC1303A/TC1303B/ TC1303C/TC1304 Manual
The TC1303/TC1304 family combines a 500 mA synchronous buck regulator and a 300 mA low‑dropout regulator (LDO) in a single 10‑lead DFN or MSOP package. The integrated power‑good function provides a 300 ms delay for processor reset and can monitor the buck output, the LDO output, or both.
Typical applications include cellular phones, portable computers, USB‑powered devices, handheld medical instruments, organizers and PDAs. Electrical specifications such as efficiency, dropout voltage and protection features are listed in the DC characteristics sections.
MICROCHIP TC1303A specifications
| Buck Regulator Output Current | 500 mA |
|---|---|
| LDO Output Current | 300 mA |
| Typical Efficiency | Over 90 % |
| Fixed‑Frequency PWM | 2.0 MHz |
| LDO Dropout Voltage | 137 mV @ 200 mA |
| Power‑Good Delay | 300 ms |
| Package Options | 10‑lead DFN or MSOP |
| Operating Junction Temperature | -40 °C to +125 °C |
All MICROCHIP TC1303A documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the power‑good delay for the TC1303/TC1304?
The power‑good output includes a 300 ms delay, which is used for processor reset.
Which package types are available for the TC1303/TC1304 devices?
They are offered in a 10‑lead DFN package or a 10‑lead MSOP package.
What is the maximum output current of the buck regulator?
The buck regulator can deliver up to 500 mA of output current.
What is the typical dropout voltage of the LDO at 200 mA?
The LDO has a typical dropout voltage of 137 mV when delivering 200 mA.