 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
L5970D Datasheet(PDF) 1 Page - STMicroelectronics |
|
|
|||||||||||||||||||||||||||||
L5970D Datasheet(HTML) 1 Page - STMicroelectronics |
|
|
1 / 16 page  January 2007 Rev 14 1/16 16 L5970D Up to 1A step down switching regulator General features ■ Up to 1A output current ■ Operating input voltage from 4.4V to 36V ■ 3.3V / (±2%) reference voltage ■ Output voltage adjustable from 1.2V to 35V ■ Low dropout operation: 100% duty cycle ■ 250KHz Internally fixed frequency ■ Voltage feedforward ■ Zero load current operation ■ Internal current limiting ■ Inhibit for zero current consumption ■ Synchronization ■ Protection against feedback disconnection ■ Thermal shutdown Applications ■ Consumer: STB, DVD, TV, VCR, car radio, LCD monitors ■ Networking: XDSL, modems, DC-DC modules ■ Computer: printers, audio/graphic cards, optical storage, hard disk drive ■ Industrial: changers, car battery, DC-DC converters Description The L5970D is a step down monolithic power switching regulator capable to deliver up to 1A at output voltages from 1.2V to 35V. The device uses an internal P-Channel D-MOS transistor (with a typical Rdson of 250m Ω) as switching element to minimize the size of the external components. An internal oscillator fixes the switching frequency at 250KHz. Having a minimum input voltage of 4.4V only, it is particularly suitable for 5V bus, available in all computer related applications. Pulse by pulse current limit with the internal frequency modulation offers an effective constant current short circuit protection. SO8 www.st.com Test application circuit D98IN954C 8 2 4 5 1 7 L5970D C1 10 µF 35V CERAMIC C2 100 µF 10V VOUT=3.3V VIN = 4.4V to 35V R1 5.6K R2 3.3K R3 4.7K C4 22nF C3 220pF 3 6 D1 STPS2L40U 3.3V INH. SYNC. COMP VCC VREF OUT FB GND L1 33 µH |
Similar Part No. - L5970D_07 |
|
Similar Description - L5970D_07 |
|
|
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | 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 |
New Zealand ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
