Description

The APU1207M-18 is an ultra low dropout 1A regulator that uses a PNP transistor as the pass element. It is ideal for applications where only a single input supply is available and the dropout voltage needs to be less than 1V. The APU1207M-18 is commonly used when an input voltage of 3.3V is provided and a 2.5V output is required. It has a low dropout voltage of less than 0.5V and includes features such as micro-power shutdown capability and output undervoltage lockout (UVLO) detection.

Specifications and features

- Low dropout voltage of 500mV at 1A
- 1% voltage reference accuracy
- Low ground current
- 1µA maximum quiescent current in shutdown mode (APU1207, APU1208)
- Fast transient response
- Current limit and thermal shutdown
- Error flag signal for output out of regulation (APU1207, APU1208)
- RoHS compliant

Application Scenarios

- 2.5V supply from 3.3V input for the new generation of Logic ICs
- Computer Mother Board, Add-On Cards
- High Efficiency Post Regulator in Switch Mode Power Supply (SMPS)

Comparison

- Ultra low dropout voltage
- Micro-power shutdown capability
- Output undervoltage lockout (UVLO) detection
- Fast transient response

- None identified