MIC5166YML-TR Microchip

MIC5166 3A High-Speed, Low-V DDR Terminator IN Features General Description Operating Voltage Range: The MIC5166 is a 3A, high-speed, linear, low V , IN double data rate (DDR), memory terminator power -V Supply: 0.9V to 3.6V DDQ supply. The part is small and requires small output - Bias Supply: 2.5V to 5.5V capacitors, making it a tiny overall solution. This allows High Bandwidth: Very Fast Transient Response it to be conveniently placed close to the DDR memory, Stable with Two 10 F Ceramic Output Capacitors minimizing circuit board layout inductance that may Two 10 F Output Capacitors used in Most cause excessive voltage ripple at the DDR memory. Applications The MIC5166 contains a precision voltage divider High Output Voltage Accuracy: network in order to take in the V voltage as a DDQ - 0.015% Line Regulation reference voltage and conveniently output the terminator voltage (V ) at one half of the V input - 1.5% Load Regulation TT DDQ voltage. Logic Level Enable Input The MIC5166 is capable of sinking and sourcing up to Power Good (PG) 3A. It is stable with only two 10 F ceramic output Thermally Enhanced 3 mm x 3 mm DFN capacitors. The part is available in a small 3 mm x Junction Temperature Range 40C to +125C 3 mm DFN thermally-enhanced package. This Device Meets DDR4 Requirements The MIC5166 has a high-side NMOS output stage offering very low output impedance, and very high Applications bandwidth. The NMOS output stage offers a unique ability to respond very quickly to sudden load changes Desktop Computers such as is required for DDR memory termination power Notebook Computers supply applications. Datacom Systems Servers Package Type Video Cards MIC5166 10-Lead 3 mm x 3 mm DFN (ML) (Top View) VIN VREF110 VTT BIAS 2 9 PGND AGND 3 EP 8 VDDQ 4 7 EN 56 SNS PG 2018 - 2019 Microchip Technology Inc. DS20006085B-page 1MIC5166 Typical Application Circuit MIC5166 V V 2 4 BIAS DDQ BIAS VDDQ 2.5V TO 5.5V 0.9V TO 3.6V 4.7F 1.0F V 9 TT VTT V 10 3A IN VIN 6 0.9V TO 3.6V SNS 10 N 10F 8 EP 22F PGND 5 3 PG PG AGND 7 EN EN V 1 REF VREF 10mA 1.0F Functional Block Diagram MIC5166 V BIAS BIAS 2.5V TO 5.5V UVLO 1F UVLO V CONTROL VIN IN EN EN 0.9V TO 3.6V LOGIC 10F THERMAL SHUTDOWN VTT V TT 3A 2x10F V DDQ VDDQ 0.9V TO 3.6V 4.7F 45 N SNS 5 N 110% V BIAS VREF VREF 10N 1.0F 5 N PG PG 90% VREF 45 N AGND DS20006085B-page 2 2018 - 2019 Microchip Technology Inc. EP PGND