Date: 22/05/2012

200mA high speed LDO regulators fromTorex Semiconductor

Torex Semiconductor Ltd has developed a new 200mA, high speed LDO regulators with inrush current prevention.

The internal inrush current prevention circuit limits the inrush current between VIN and VOUT to 95mA or less, and thereby controls voltage fluctuations at the VIN input side. The over-current protection circuit (foldback) is included as another protective function and this activates if the output current reaches the current limit. Even if over-current occurs due to a short circuit, for example, the foldback function limits the current to a safe 60mA (TYP.).

Features:
1. 200mA, high-speed LDO regulator with inrush current prevention
2. Input voltage range 1.7V - 5.5V, output voltage range 1.2V - 3.6V (0.05V increments) with accuracy of ±1%
3. Dropout voltage of 240mV (IOUT=200mA, VOUT=3.0V)
4. Ripple rejection of 75dB (at 1kHz)
5. Includes an over-current protection circuit and a short-circuit protection circuit
6. USP-4, SSOT-24, or SOT-25 package
7. Complies with EU RoHS and Pb free