AME5104 Datasheet | Analog Microelectronics

AME, Inc. AME5104 n General Description The AME5104 is a monolithic IC that was designed as a step-down DC/DC Converter and owns the ability of driving a 3A load without additional transistor ponent.The output versions included 3.3V,5V,12V and an adjustable type.It operates at a switching frequency of 150KHz thus allowing smaller sized filter ponents otherwise it would need .. lower frequency switchhing regulators. Other Features include a guaranteed +4% tolerance on output voltage under specified input voltage and output load conditions, and +15% on the oscillator frequency. Regarding protected function, current limit is to protect over current operating of the output switch. 150KHz,3A PWM DC/DC Buck Converter n Features l 3.3V, 5V, 12V and adjustable l Adjustable version output voltage range: 1.4-36V l +4% max over line and load conditions l 150KHz +15% fixed switching frequency l TTL shutdown capability l Operating voltage can be up to 36V l Output load current: 3A l TO-263-5L package l Low power standby mode l Current-limit protection l High efficiency l Built-in a switching transistor on chip, requires only 4 external ponents l All AME's Lead Free Products Meet Standards Ro HS n Applications l Simple High-efficiency step-down regulator l Positive to negative converter l On-card switching regulators Rev.C.02 AME, Inc. AME5104 n Function Block Diagram EN V IN .. Current + + 150KHz,3A PWM DC/DC Buck Converter Source Bias 1.235V Reference 2.5V Regulator Start Up 200 m V 220 m V + Current Limit + R2 + - AMP + + Driver Thermal Limit 3A Switch R 1=2.5K - 150 KHz OSC. SW GND n Typical...