NATIONAL SEMICONDUCTOR LM2734Z/LM2734ZQ Thin SOT23 1A Load Step-Down DC-DC Regulator Manual
Update: 30 September, 2023
The LM2734Z/LM2734ZQ Thin SOT23 1A Load Step-Down DC-DC Regulator is a monolithic, high frequency, PWM step-down DC/DC converter assembled in a 6-pin Thin SOT23 and LLP non pull back package. It provides all the active functions to provide local DC/DC conversion with fast transient response and accurate regulation in the smallest possible PCB area. With a minimum of external components and online design support through WEBENCH®™, the LM2734Z is easy to use. The ability to drive 1A loads with an internal 300mΩ NMOS switch using state-of-the-art 0.5µm BiCMOS technology re- sults in the best power density available. The world class control circuitry allows for on-times as low as 13ns, thus sup- porting exceptionally high frequency conversion over the en- tire 3V to 20V input operating range down to the minimum output voltage of 0.8V. Switching frequency is internally set to 3MHz, allowing the use of extremely small surface mount inductors and chip capacitors. Even though the operating fre- quency is very high, efficiencies up to 85% are easy to achieve. External shutdown is included, featuring an ultra-low stand-by current of 30nA. The LM2734Z utilizes current-mode control and internal compensation to provide high-perfor- mance regulation over a wide range of operating conditions. Additional features include internal soft-start circuitry to re- duce inrush current, pulse-by-pulse current limit, thermal shutdown, and output overvoltage protection.
Brand: National
File format: PDF
Size: 453 KB
MD5 Checksum: 17F11AE54B569299D0A815CCE32BB127
Publication date: 02 May, 2012
Downloads: -
PDF Link: NATIONAL SEMICONDUCTOR LM2734Z/LM2734ZQ Thin SOT23 1A Load Step-Down DC-DC Regulator Manual PDF