LTM4644IY#PBF Power Path Management IC 4A Step-Down Module Regulator with Configurable Output Array
power management integrated circuit
,microchip battery management
LTM4644IY#PBF Power Path Management IC 4A Step-Down Module Regulator with Configurable Output Array
FEATURES
n Quad Output Step-Down μModule® Regulator with 4A per Output
n Wide Input Voltage Range: 4V to 14V
n 2.375V to 14V with External Bias
n 0.6V to 5.5V Output Voltage
n 4A DC, 5A Peak Output Current Each Channel
n Up to 5.5W Power Dissipation (TA = 60°C, 200 LFM,
n ±1.5% Total Output Voltage Regulation
n 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 Synchronization
n 9mm × 15mm × 5.01mm BGA Package
APPLICATIONS
n Multirail Point of Load Regulation
n FPGAs, DSPs and ASICs Applications
DESCRIPTION
The LTM®4644/LTM4644-1 is a quad DC/DC step-down μModule (micromodule) regulator with 4A per output. Outputs can be paralleled in an array for up to 16A capabil- ity. Included in the package are the switching controllers, power FETs, inductors and support components. Operating over an input voltage range of 4V to 14V or 2.375V to 14V with an external bias supply, the LTM4644/LTM4644-1 supports an output voltage range of 0.6V to 5.5V. Its high efficiency design delivers 4A continuous (5A peak) output current per channel. Only bulk input and output capacitors are needed.
No Heat Sink)
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