General Description

The MAX8737 dual high-power linear regulator controllers use external n-channel MOSFETs to generate two independent low-voltage supplies for notebook computers. The MAX8737 delivers low output voltages from 0.5V to 2.5V (±5mV no-load accuracy). The external components allow scalable current design with loads up to 5A with excellent load regulation (1). The regulator operates from a low input voltage, which also reduces the power dissipation in the external n-channel MOSFET. The controller powers the external MOSFET gate driver from the standard 5V system supply.

Features

? Low-Cost Dual Linear Regulators

? Output Voltage Accuracy ±5mV

? Independent 0.5V to 2.5V Reference Inputs

? Foldback Current-Limit Protection

? Output Undervoltage-Lockout Protection

? Thermal Limit (Internal Sensor)

? 1.0V to 5.5V Input Supply Voltage (External FET Drain)

? 5V Bias Supply Voltage

? Independent Power-Good Open-Drain Outputs

? Independent Enable Inputs

? Soft-Shutdown Output Discharge

? Low Supply Current (0.5mA)

? 5μA (max) Shutdown Supply Current

Applications

?? Notebook and Desktop Computers

?? Point-of-Load Regulators

?? VMCH and VCCP CPU Supplies

?? Low-Voltage Bias Supplies

?? Servers