Power Management IC

The MAX77826 is a subpower management IC for the latest 3G/4G smartphones and tablets. The MAX77826 contains a high-efficiency BUCK regulator, a BUCK BOOST regulator and 15 LDOs to power up peripherals. The MAX77826 also provides power on/off control logic and an I²C serial interface to program individual regulator output voltages and on/off control for complete flexibility.

The linear regulators support a remote cap feature and provide greater than 70dB PSRR and less than 45µVRMS noise.

The MAX77826 features I²C-compatible, 2-wire serial interface that comprises a bidirectional serial data line (SDA) and a serial clock line (SCL). The MAX77826 supports SCL clock rates up to 3.4MHz.

Applications

* GSM, GPRS, EDGE, CDMA WCDMA, and LTE Smartphones and Tablets

* Compact Total Solution Size Allows More Peripheral Devices in Smartphones and Tablets

* 3A High-Efficiency BUCK Regulator

* DVS (Dynamic Voltage Scaling) Through HS I²C

* ±1% (typ) Output Voltage DC Accuracy

* Low Power Mode

* 2A BUCK BOOST Regulator

* 15 Linear Regulators with Remote Cap

* 3 NMOS LDOs (VOUT Range: 0.6V to 2.1875V with 12.5mV Step)

* 1 x 150mA

* 1 x 450mA

* 1 x 600mA

* 6 PMOSLV LDOs (VOUT Range: 0.8V to 3.975V with 25mV Step)

* 3 x 150mA

* 3 x 300mA

* 6 PMOSLS LDOs (VOUT Range: 0.8V to 3.975V with 25mV Step)

* 3 x 150mA

* 3 x 300mA

* ±1.5% Typical Output Voltage DC Accuracy

* 70dB PSRR at 1kHz

* Low Power Mode with 2µA (typ) for All LDOs

* Simple Management of Power-Up/Down Sequence, Output Voltage Setting, and Fault Detection

* High-Speed (Up to 3.4MHz) I²C Serial Interface