Electronic Components Datasheet Search |
|
SC2982CSK-1.8TR Datasheet(PDF) 1 Page - Semtech Corporation |
|
SC2982CSK-1.8TR Datasheet(HTML) 1 Page - Semtech Corporation |
1 / 5 page 1 www.semtech.com SC2982 50mA Ultra Low Dropout, Low Noise Micropower Linear Regulator POWER MANAGEMENT PRELIMINARY Revision 1, January 2001 The SC2982 is a 50mA ultra low dropout linear regulator with a built in CMOS/TTL logic level enable switch. It is designed specifically for battery powered applications where low quiescent current and low dropout are critical for battery longevity. The SC2982 uses a Semtech proprietary internal PNP device for the pass element, providing a low dropout voltage of 100mV at a load of 50mA, while maintaining a ground pin current of 600µA. The output noise is reduced by placing a 10nF capacitor on pin 4 (bypass). Each device contains a bandgap reference, error amplifier, PNP pass element, thermal and current limiting circuitry and resistor divider network for setting output voltage. The SC2982 is packaged in a 5 pin SOT-23 surface mount package for a very small footprint and requires only a 1µF capacitor on the output for a minimum number of external components. u Battery Powered Systems u Cellular Telephones u Cordless Telephones u Pagers u Personal Digital Assistants u Portable Instrumentation u Cameras u Portable Consumer Equipment u PCMCIA Cards u Ultra low dropout voltage - 100mV @ 50mA u Guaranteed 50mA output current u Low ground pin current at all loads u <1µA quiescent current in shutdown u Wide input supply voltage range 2.5V to 16V u Wide output voltage range u Excellent line regulation u Industrial temperature range u Surface mount packaging (5 pin SOT-23) EN VIN VO + C 1uF U1 SC2982 1 2 3 4 5 VIN GND EN BYP VO + Co 1uF C 10nF IN BYP Description Features Applications Typical Application Circuit Notes: (1) C IN is needed if the device is far from the supplys filter capacitors, or for operation from a battery. A value of 1µF or greater should be used. C IN may be a tantalum or aluminum electrolytic capacitor. (2) C O should be a 1µF or greater tantalum or aluminum electrolytic capacitor. Larger value capacitors will improve the overall transient response. Due to their very low ESR, ceramic capacitors should not be used. (3) C BYP should be placed as close as possible to pin 4 and ground. A 10nF ceramic capacitor is recommended. (4) EN should be tied to VIN if the shutdown feature is not required. Maximum EN voltage = VIN. |
Similar Part No. - SC2982CSK-1.8TR |
|
Similar Description - SC2982CSK-1.8TR |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |