nx4110 Microsemi Corporation, nx4110 Datasheet
nx4110
Related parts for nx4110
nx4110 Summary of contents
Page 1
... SYNCHRONOUS BUCK SWITCHER WITH FET ON BOARD DESCRIPTION The NX4110 is a current mode PWM buck switcher with internal compensation, can provide output cur- rent with FET on board. It operates from 2.8V to 5.5V and output as low as 0.6V which is ideal for the applica- tion with single cell Li-Ion battery as well as other 3.3V input bus supply applications ...
Page 2
... Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 150 150 FB VIN o C. Unless otherwise specified. SYM Test Condition V FB VIN=3V to 5V,VOUT=1.8V, IOUT=10mA Load, switching Tss Microsemi Analog Mixed Signal Group NX4110 Min TYP MAX Units 0.6 V 0.59 0.607 2 mV 2.3 2.5 2 2.8 5 1000 ...
Page 3
... PGOOD transitions from state. Rev. 2.0 12/30/09 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 SYM Test Condition Vin=5V Vin=3.3V Vin=5V Vin=3.3V PIN DESCRIPTION Microsemi Analog Mixed Signal Group NX4110 Min TYP MAX Units 1 155 ...
Page 4
... BLOCK DIAGRAM POR VIN CLK start Hiccup Soft start timer Vref FB PGOOD Fig Simplified block diagram of the NX4110 Rev. 2.0 12/30/09 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Thermal Shutdown UVLO POR 3 cycle counter OCPB S one shot OSC Q R PWM comparator ...
Page 5
... ° Fig.3 - Reference volateg vs temperature Normalized frequency vs temperature 100 temperature(°C) Fig.4 - Normalized frequency vs temperature Microsemi Analog Mixed Signal Group NX4110 120 140 160 5 ...
Page 6
... Fig.5 - Duty cycle vs maximum output current Rev. 2.0 12/30/09 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Microsemi Analog Mixed Signal Group NX4110 ...
Page 7
... Typical Application( VOUT=2.5V) Fig Output ripple Rev. 2.0 12/30/09 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 22uF(X5R,6.3V VIN FB 2.2uH 3 SW 10uF 2 (X5R, 6.3V) 1 PGOOD GND Fig Demo board schematic Fig Transient response Microsemi Analog Mixed Signal Group NX4110 VIN=5V Vout=2.5V 332k 105k 7 ...
Page 8
... Fig Output ripple Rev. 2.0 12/30/09 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 22uF(X5R,6.3V VIN FB 2.2uH 3 SW 10uF 2 (X5R, 6.3V) 1 PGOOD GND Fig Demo board schematic Fig Transient response Fig Efficiency Microsemi Analog Mixed Signal Group NX4110 VIN=5V Vout=1.8V 332k 165k 8 ...
Page 9
... Fig Demo board schematic Fig Output ripple Fig Startup Rev. 2.0 12/30/09 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 22uF(X5R,6.3V VIN FB 2.2uH 3 SW 10uF 2 (X5R, 6.3V) 1 PGOOD GND Fig Transient response Fig Shutdown Microsemi Analog Mixed Signal Group NX4110 VIN=5V Vout=1.2V 332k 332k 9 ...
Page 10
... Typical Application( VOUT=1.2V) Rev. 2.0 12/30/09 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Fig Efficiency Microsemi Analog Mixed Signal Group NX4110 10 ...
Page 11
... Demoboard Layout Fig Demoboard schematic Rev. 2.0 12/30/09 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Fig. 20- Top layer Microsemi Analog Mixed Signal Group NX4110 11 ...
Page 12
... Rev. 2.0 12/30/09 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Fig Gound layer Fig Power layer Microsemi Analog Mixed Signal Group NX4110 12 ...
Page 13
... Rev. 2.0 12/30/09 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Fig Bottom layer Microsemi Analog Mixed Signal Group NX4110 13 ...
Page 14
... SOT23 5 PIN PACKAGE OUTLINE DIMENSIONS Rev. 2.0 12/30/09 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Top View Side View Microsemi Analog Mixed Signal Group NX4110 14 ...