Electronic Components Datasheet Search |
|
LT1121CN8 Datasheet(PDF) 1 Page - Linear Technology |
|
LT1121CN8 Datasheet(HTML) 1 Page - Linear Technology |
1 / 16 page 1 LT1121/LT1121-3.3/LT1121-5 1121fe Micropower Low Dropout Regulators with Shutdown ■ 0.4V Dropout Voltage ■ 150mA Output Current ■ 30 μA Quiescent Current ■ No Protection Diodes Needed ■ Adjustable Output from 3.75V to 30V ■ 3.3V and 5V Fixed Output Voltages ■ Controlled Quiescent Current in Dropout ■ Shutdown ■ 16 μA Quiescent Current in Shutdown ■ Stable with 0.33 μF Output Capacitor ■ Reverse Battery Protection ■ No Reverse Current with Input Low ■ Thermal Limiting ■ Available in the 8-Lead SO, 8-Lead PDIP, 3-Lead SOT-23 and 3-Lead TO-92 Packages The LT ®1121/LT1121-3.3/LT1121-5 are micropower low dropout regulators with shutdown. These devices are capable of supplying 150mA of output current with a dropout voltage of 0.4V. Designed for use in battery- powered systems, the low quiescent current, 30 μA oper- ating and 16 μA in shutdown, makes them an ideal choice. The quiescent current is well-controlled; it does not rise in dropout as it does with many other low dropout PNP regulators. Other features of the LT1121/LT1121-3.3/LT1121-5 in- clude the ability to operate with very small output capaci- tors. They are stable with only 0.33 μF on the output while most older devices require between 1 μF and 100μF for stability. Small ceramic capacitors can be used, enhancing manufacturability. Also the input may be connected to ground or a reverse voltage without reverse current flow from output to input. This makes the LT1121 series ideal for backup power situations where the output is held high and the input is at ground or reversed. Under these conditions only 16 μA will flow from the output pin to ground. ■ Low Current Regulator ■ Regulator for Battery-Powered Systems ■ Post Regulator for Switching Supplies 5V Battery-Powered Supply with Shutdown OUTPUT CURRENT (mA) 0 0.3 0.4 0.5 60 100 160 0.2 0.1 0 20 40 80 120 140 LT1121 • TA02 Dropout Voltage IN OUT LT1121-3.3 GND 3.3VOUT 150mA 1 μF SOLID TANTALUM 5V 8 + 5 1 3 LT1121 • TA01 VSHDN (PIN 5) <0.25 >2.8 NC OUTPUT OFF ON ON SHDN FEATURES DESCRIPTIO APPLICATIO S TYPICAL APPLICATIO , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. |
Similar Part No. - LT1121CN8 |
|
Similar Description - LT1121CN8 |
|
|
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 |