LM20136MH/NOPB National Semiconductor, LM20136MH/NOPB Datasheet
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LM20136MH/NOPB
Specifications of LM20136MH/NOPB
Related parts for LM20136MH/NOPB
LM20136MH/NOPB Summary of contents
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... The LM20136 is offered in a 16-pin eTSSOP package with an exposed pad that can be soldered to the PCB, eliminating the need for bulky heatsinks. Typical Application Circuit ® PowerWise is a registered trademark of National Semiconductor Corporation. © 2009 National Semiconductor Corporation LM20136 Features ■ Input voltage range 2.95V to 5.5V ■ ...
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Connection Diagram Ordering Information Order Number Package Type LM20136MH eTSSOP-16 LM20136MHE LM20136MHX Pin Descriptions Pin # Name 1 SS/TRK Soft-Start or Tracking control input. An internal 5 µA current source charges an external capacitor to set the Soft-Start ramp rate. ...
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... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Voltages from the indicated pins to GND AVIN, PVIN, EN, PGOOD, SS/ TRK, COMP, FB, SW, SYNC Storage Temperature Junction Temperature Electrical Characteristics Limits in standard type are for T = 25° ...
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Symbol Parameter Enable V EN Pin Turn on Threshold IH_EN V EN Pin Hysteresis EN_HYS Thermal Shutdown T Thermal Shutdown SD T Thermal Shutdown Hysteresis SD_HYS Thermal Resistance θ Junction to Ambient JA Note 1: Absolute Maximum Ratings indicate limits ...
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High-Side FET resistance vs. Temperature (T Error Amplifier Gain vs. Frequency Load Regulation ) Low-Side FET resistance vs. Temperature (T J 30053967 Line Regulation 30053936 Feedback Pin Voltage vs. Temperature (T 30053938 30053968 30053937 ) J 30053951 ...
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Switching Frequency vs. Temperature (T Quiescent Current vs. Temperature (Not Switching) Enable Threshold vs. Temperature (T www.national.com ) Switch Synchronization J 30053939 Shutdown Current vs. V 30053940 ) UVLO Threshold vs. Temperature (T J 30053928 6 30053960 IN 30053941 ) ...
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Peak Current Limit vs. Temperature (T 30053969 Peak Current Limit vs 30053962 Line Transient Response ) Peak Current Limit vs Load Transient Response Start-Up (Soft-Start) 30053943 7 OUT 30053961 30053934 30053944 www.national.com ...
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Start-Up (Tracking) Short Circuit Input Current vs. V www.national.com 30053933 P IN 30053956 8 Power Down 30053932 vs. I GOOD PGOOD 30053927 ...
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Block Diagram 9 30053903 www.national.com ...
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Operation Description GENERAL The LM20136 switching regulator features all of the functions necessary to implement an efficient low voltage buck regula- tor using a minimum number of external components. This easy to use regulator features two integrated switches and is ...
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To avoid false tripping during transient glitches the PGOOD pin has 16 µs of built in deglitch time to UVLO The LM20136 has a built-in under-voltage lockout protection circuit that keeps the device from ...
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At very light loads, usually below 100mA, several pulses may be skipped in between switching cycles, effectively reducing www.national.com the switching frequency and further improving light-load effi- ciency. FIGURE 2. Modes of Operation for LM20136 12 30053905 ...
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Design Guide This section walks the designer through the steps necessary to select the external components to build a fully functional power supply. As with any DC-DC converter numerous trade- offs are possible to optimize the design for efficiency, size, ...
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Where, C (F) is the minimum required output capacitance, OUT L (H) is the value of the inductor, V voltage drop ignoring loop bandwidth considerations, ΔI (A) is the load step change, R STEP capacitor ESR, V (V) is the ...
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To achieve a -20dB/decade slope, the error amplifier zero, located should positioned to cancel the output filter Z(EA) pole ( ...
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FIGURE 7. Sequencing LM20136 with Precision Enable The value for resistor R can be selected by the user to control B the current through the divider. Typically this resistor will be selected to be between 10 kΩ and 1 MΩ. ...
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T is the ambient temperature in ° the output load current. OUT DCR is the inductor series resistance important to always keep the operating junction temper- ature (T ) below 125°C for reliable operation. If ...
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FIGURE 11. Schematic of LM20136 Highlighting Layout Sensitive Nodes www.national.com 30053922 18 ...
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... C1 as outlined in the design C1 30053901 = 500kHz) SYNC Manufacturer Qty National Semiconductor 1 TDK 1 TDK 1 TDK 1 Vishay-Dale 1 Murata 1 Murata 1 Vishay-Dale 1 Murata 1 Vishay-Vitramon 1 Vishay-Dale 1 Vishay-Dale 1000kHz) SYNC Manufacturer Qty National Semiconductor 1 TDK 1 TDK 1 TDK 1 Vishay-Dale 1 Murata 1 Murata 1 Vishay-Dale 1 Vishay-Vitramon 1 Vishay-Vitramon 1 Vishay-Dale 1 Vishay-Dale 1 www.national.com ...
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Physical Dimensions www.national.com inches (millimeters) unless otherwise noted 16-Lead eTSSOP Package NS Package Number MXA16A 20 ...
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Notes 21 www.national.com ...
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