ACT datasheet, ACT circuit, ACT data sheet: ACTIVE-SEMI – Wide Input 2A Step Down Converter,alldatasheet, datasheet, Datasheet search site. ACT Datasheet PDF Download – Wide Input 2A Step Down Converter, ACT data sheet. Active-Semi ACT datasheet, Wide Input 2A Step Down Converter (1-page), ACT datasheet, ACT pdf, ACT datasheet pdf, ACT pinouts.

Author: Dasida Kajirr
Country: Australia
Language: English (Spanish)
Genre: Science
Published (Last): 7 August 2005
Pages: 165
PDF File Size: 16.66 Mb
ePub File Size: 17.17 Mb
ISBN: 223-2-81066-757-3
Downloads: 51320
Price: Free* [*Free Regsitration Required]
Uploader: Kajigal

Output voltage is discharged when the IC is off. Current limit happens when COMP reaches its maximum clamp value of 2. See Input Ddatasheet in the Application Information section. The converter operates as follows: The input capacitor should be placed close to the IN and G pins of the IC, with the shortest traces possible.

With the SW side of the inductor now connected to IN, the inductor current ramps up to store energy in the magnetic field. So don’t give up. Do not exceed these limits to prevent damage to the datasneet. Users should evaluate each product to make sure that it is suitable datxsheet their applications. Protection features include cycle-bycycle current limit, thermal shutdown, and frequency foldback at short circuit.


G EA The second pole P2 is the output pole: Table 2 shows some calculated results based on the compensation method above. The Oscillator normally switches at kHz.

The DC loop gain of the system is determined by the following equation: Bypass this pin to G with a low ESR capacitor. Breadboard gives no meaningful results.

PNP transistor not working 2. Unfortunately I’m not sure what is the reason of my problem – probably messy PCB layout. Active-Semi products are not intended or authorized for use as critical components in life-support devices or systems.

In general, select an inductance value L based on the ripple current requirement: Some SMPS need a minimum load, don’t they? How do you get an MCU design to market quickly? Since large current flows in and out of this capacitor during switching, its ESR also affects efficiency.

Heat sinks, Part 2: I will replace the inductor and let know the results.

ACT4060 Datasheet PDF

In the case of tantalum or electrolytic capacitors, the ripple is dominated by RESR multiplied by the ripple current.

The voltage at this pin is regulated to 1. Originally Posted by d Distorted Sine output from Transformer 8. The input capacitor should be placed close to the IN and G pins of the IC, with the shortest traces possible.


Voltage drop in SMPS output (ACT)

For more information on this and other products, contact sales micro-bridge. Bypass this pin to G with a low ESR capacitor. In the case of ceramic output capacitors, RESR is very small and does not contribute to the ripple.

Make actt4060 that this peak inductor current is less that the 3A current limit. Dec 248: Choosing IC with EN signal 2. PV charger battery circuit 4. Synthesized tuning, Part 2: When lower than 0.


I noticed that “slow” op amp gives calculated 5Vout, much faster op amp gives an unwanted 7Vout. Connect this pin to the switching end of the inductor. CMOS Technology file 1.

And as expected they show the saturation current requirement.