LTM4643
Ultrathin Quad ВµModule
Regulator with Configurable
3A Output Array
DESCRIPTION FEATURES Quad Output Step-Down ВµModuleВ® Regulator with
3A per Output
n Wide Input Voltage Range: 4V to 20V
nn 2.375V to 20V with External Bias
n 0.6V to 3.3V Output Voltage
n 3A DC Output Current Each Channel
n В±1.5% Total Output Voltage Regulatio Current Mode Control, Fast Transient Response
n Parallelable for Higher Output Current
n Output Voltage Tracking
n Internal Temperature Sensing Diode Output
n External Frequency Synchronizatio Overvoltage, Current and Temperature Protectio 9mm Г— 15mm Г— 1.82mm LGA and 9mm Г— 15mm Г—
2.42mm BGA Packages
n APPLICATIONS The LTMВ®4643 is a quad DC/DC step-down ВµModule
(power module) regulator with 3A per output. Outputs can
be paralleled in an array for up to 12A capability. Included
in the package are the switching controllers, power FETs,
inductors and support components. Operating over an
input voltage range of 4V to 20V or 2.375V to 20V with
an external bias supply, the LTM4643 supports an output …