Low-Noise, Low-Dropout, 200mA Linear Regulator in UCSP

The MAX8532 offers the benefits of low-dropout voltage and ultra-low power regulation in a subminiaturized UCSP, making it ideal for space-restricted portable equipment. The device operates from a 2.5V to 6.5V input and delivers up to 200mA, with low dropout of 100mV (typ) at 100mA. Designed with an internal P-channel MOSFET pass transistor, the supply current is kept at a low 80µA, independent of the load current and dropout voltage. Other features include short-circuit protection and thermal-shutdown protection.

The MAX8532 includes a reference bypass pin for low output noise (40µVRMS) and a logic-controlled shutdown input. The device is available in a tiny 6-pin UCSP.

Applications

* Cell Phones/Cordless Phones * Digital Cameras * Handheld Instruments (PDAs, Palmtops) * Notebook Computers * PCMCIA Cards * PDAs and Palmtop Computers * Wireless Local Area Networks (WLANs)

* Guaranteed 200mA Output Current

* Low 100mV (typ) Dropout at 100mA

* Low 40µVRMS Output Noise

* Low 80µA Operating Supply Current

* 62dB PSRR

* < 1µA Shutdown Current

* Thermal-Overload and Short-Circuit Protection

* Output Current Limit

* Tiny 1.16mm x 1.57mm x 0.66mm UCSP (3 x 2 Grid)