Dual, Low-Noise, Low-Dropout, 160mA Linear Regulators in SOT23

The MAX8882/MAX8883 dual, low-noise, low-dropout linear regulators operate from a +2.5V to +6.5V input and deliver up to 160mA each of continuous current. Both versions offer low output noise and low dropout of only 72mV at 80mA. Designed with an internal P-channel MOSFET pass transistor, the MAX8882/MAX8883 maintain a low 165µA supply current (both LDOs on), independent of the load current and dropout voltage. Other features include short-circuit protection and thermal-shutdown protection. The MAX8882 has a single shutdown input and provides an external reference bypass pin to improve noise performance. The MAX8883 includes two independent logic-controlled shutdown inputs. The MAX8882/MAX8883 are both available in a miniature 6-pin SOT23 package.

Applications

* µP/DSP Core/IO Power * Cellular and PCS Mobile Phones * Digital Still Cameras * Handheld Instruments (PDAs, Palmtops) * Notebook Computers * PDAs and Palmtop Computers

* Two LDOs in Tiny SOT23

* Up to 160mA Output Current (each LDO)

* 40µVRMS Output Noise (MAX8882)

* 72mV Dropout at 80mA Load

* Low 165µA Operating Supply Current

* 62dB PSRR (greater than 56dB to 100kHz)

* Independent Low-Power Shutdown Controls (MAX8883)

* Thermal-Overload and Short-Circuit Protection

* Output Current Limit