LMZ22005 Datasheet | National Semiconductor

Features - - - - - - - - - - Integrated shielded inductor Simple PCB layout Frequency synchronization input (650 k Hz to 950 k Hz) Flexible startup sequencing using external soft-start, tracking and precision enable Protection against inrush currents and faults such as input UVLO and output short circuit - 40°C to 125°C junction temperature range Single exposed pad for easy mounting and manufacturing Fast transient response for powering FPGAs and ASICs Fully enabled for Webench® Power Designer Pin patible with LMZ23605/LMZ23603/LMZ22003 Thermal derating curve VIN = 12V VOUT = 5.0V 6 MAXIMUM OUTPUT CURRENT (A) 5 4 3 2 1 0 θJA=12°C/W 30 40 50 60 70 80 90 100 110 120 130 AMBIENT TEMPERATURE (°C) Applications - - - - Point of load conversions from 12V input rail Time critical projects Space constrained / high thermal requirement applications Negative output voltage applications (see AN-2027) Radiated EMI (EN 55022) of Demo Board (See AN-2125) 50 40 30 20 10 0 0 Class A Limit Class B Limit Horiz Peak Horiz Quasi-Peak 200 400 600 800 FREQUENCY (MHz) 1000 AMPLITUDE (d BμV/m) © 2011 National Semiconductor Corporation .national. Free Datasheet http://../ Simplified Application Schematic Connection Diagram Top View 7-Lead TO-PMOD Ordering Information Order Number LMZ22005TZ LMZ22005TZE LMZ22005TZX Package Type TO-PMOD-7 TO-PMOD-7 TO-PMOD-7 NSC Package Drawing TZA07A TZA07A TZA07A Supplied As 45 Units in a Rail 250 Units on Tape and Reel 500 Units on Tape and Reel Pin Descriptions Pin 1 2 Name Description VIN Supply input - Nominal operating range is 6V to 20V . A small amount of internal capacitance is contained within the package assembly. Additional external input capacitance is required between this pin and exposed pad (PGND). SYNC Sync Input - Apply a CMOS logic level square wave whose frequency is between 650 k Hz and 950 k Hz to synchronize the PWM operating frequency to an external frequency...