LM20136 Series

2.95-5.5V, 6A, Current Mode Synchronous Buck Regulator with Input Synchronization

Catalog

2.95-5.5V, 6A, Current Mode Synchronous Buck Regulator with Input Synchronization

Part	Output Configuration	Voltage - Input (Max) [Max]	Voltage - Input (Min) [Min]	Function	Mounting Type	Package / Case	Package / Case	Output Type	Topology	Voltage - Output (Max) [Max]	Operating Temperature [Min]	Operating Temperature [Max]	Number of Outputs	Supplier Device Package	Voltage - Output (Min/Fixed)	Current - Output	Frequency - Switching	Board Type	Utilized IC / Part	Voltage - Output	Outputs and Type	Outputs and Type	Regulator Topology	Main Purpose	Supplied Contents
Texas Instruments LM20136MH/NOPB	Positive	5.5 V	2.95 V	Step-Down	Surface Mount	16-PowerTSSOP	0.173 in 4.4 mm Width	Adjustable	Buck	4.68 V	-40 °C	125 ¯C	1	16-HTSSOP	0.8 V	6 A	410 kHz
Texas Instruments LM20136MHEVAL																6 A	400 kHz	Fully Populated	LM20136	3.3 V	Non-Isolated	1	Buck	DC/DC Step Down	Board(s)
Texas Instruments LM20136MHX/NOPB	Positive	5.5 V	2.95 V	Step-Down	Surface Mount	16-PowerTSSOP	0.173 in 4.4 mm Width	Adjustable	Buck	4.68 V	-40 °C	125 ¯C	1	16-HTSSOP	0.8 V	6 A	410 kHz

Catalog

2.95-5.5V, 6A, Current Mode Synchronous Buck Regulator with Input Synchronization

Key Features

• Input Voltage Range 2.95V to 5.5VAccurate Current Limit Minimizes Inductor Size97% Peak EfficiencyFrequency Synchronization Pin16mΩ and 20mΩ Integrated FET SwitchesStarts up Into Pre-biased LoadsOutput Voltage TrackingPeak Current Mode ControlAdjustable Output Voltage Down to 0.8VAdjustable Soft-Start with External CapacitorPrecision Enable Pin with HysteresisIntegrated OVP, UVLO, Power Good and Thermal Shutdown16-Pin HTSSOP exposed Pad PackageAll trademarks are the property of their respective owners.Input Voltage Range 2.95V to 5.5VAccurate Current Limit Minimizes Inductor Size97% Peak EfficiencyFrequency Synchronization Pin16mΩ and 20mΩ Integrated FET SwitchesStarts up Into Pre-biased LoadsOutput Voltage TrackingPeak Current Mode ControlAdjustable Output Voltage Down to 0.8VAdjustable Soft-Start with External CapacitorPrecision Enable Pin with HysteresisIntegrated OVP, UVLO, Power Good and Thermal Shutdown16-Pin HTSSOP exposed Pad PackageAll trademarks are the property of their respective owners.

Description

The LM20136 is a full featured synchronous buck regulator capable of delivering up to 6A of continuous output current. The current mode control loop can be compensated to be stable with virtually any type of output capacitor. For most cases, compensating the device only requires two external components, providing maximum flexibility and ease of use. The device is optimized to work over the input voltage range of 2.95V to 5.5V making it suitable for a wide variety of low voltage systems. The device features internal over voltage protection (OVP) and over current protection (OCP) circuits for increased system reliability. A precision enable pin and integrated UVLO allows the turn on of the device to be tightly controlled and sequenced. Start-up inrush currents are limited by both an internally fixed and externally adjustable Soft-Start circuit. Fault detection and supply sequencing are possible with the integrated power good circuit. The switching frequency of the LM20136 can be synchronized to an external clock by use of the SYNC pin. The SYNC pin is capable of synchronizing to input signals ranging from 500 kHz to 1.5 MHz The LM20136 is designed to work well in multi-rail power supply architectures. The output voltage of the device can be configured to track a higher voltage rail using the SS/TRK pin. If the output of the LM20136 is pre-biased at startup it will not pull the ouput low. The LM20136 is offered in a 16-pin HTSSOP package with an exposed pad that can be soldered to the PCB, eliminating the need for bulky heatsinks. The LM20136 is a full featured synchronous buck regulator capable of delivering up to 6A of continuous output current. The current mode control loop can be compensated to be stable with virtually any type of output capacitor. For most cases, compensating the device only requires two external components, providing maximum flexibility and ease of use. The device is optimized to work over the input voltage range of 2.95V to 5.5V making it suitable for a wide variety of low voltage systems. The device features internal over voltage protection (OVP) and over current protection (OCP) circuits for increased system reliability. A precision enable pin and integrated UVLO allows the turn on of the device to be tightly controlled and sequenced. Start-up inrush currents are limited by both an internally fixed and externally adjustable Soft-Start circuit. Fault detection and supply sequencing are possible with the integrated power good circuit. The switching frequency of the LM20136 can be synchronized to an external clock by use of the SYNC pin. The SYNC pin is capable of synchronizing to input signals ranging from 500 kHz to 1.5 MHz The LM20136 is designed to work well in multi-rail power supply architectures. The output voltage of the device can be configured to track a higher voltage rail using the SS/TRK pin. If the output of the LM20136 is pre-biased at startup it will not pull the ouput low. The LM20136 is offered in a 16-pin HTSSOP package with an exposed pad that can be soldered to the PCB, eliminating the need for bulky heatsinks.