Datenblatt-Suchmaschine für elektronische Bauteile |
|
FAN2002 Datenblatt(PDF) 1 Page - Fairchild Semiconductor |
|
FAN2002 Datenblatt(HTML) 1 Page - Fairchild Semiconductor |
1 / 11 page FAN2001/FAN2002 Rev. 1.0.2 1 www.fairchildsemi.com April 2005 ©2005 Fairchild Semiconductor Corporation FAN2001/FAN2002 1A High-Efficiency Step-Down DC-DC Converter Features ■ 96% Efficiency, Synchronous Operation ■ Adjustable Output Voltage Options from 0.8V to VIN ■ 2.5V to 5.5V Input Voltage Range ■ Up to 1A Output Current ■ Fixed Frequency 1.3MHz PWM Operation ■ High Efficiency Power Save Mode ■ 100% Duty Cycle Low Dropout Operation ■ Soft Start ■ Output Over-Voltage Protection ■ Dynamic Output Voltage Positioning ■ 25µA Quiescent Current ■ Thermal Shutdown and Short Circuit Protection ■ Pb-Free 3x3mm 6-Lead MLP Package Applications ■ Pocket PCs, PDAs ■ Cell Phones ■ Battery-Powered Portable Devices ■ Digital Cameras ■ Hard Disk Drives ■ Set-Top-Boxes ■ Point-of-Load Power ■ Notebook Computers ■ Communications Equipment Description Designed for use in battery-powered applications, the FAN2001/ FAN2002 is a high-efficiency, low-noise synchronous PWM cur- rent mode and Pulse Skip (Power Save) mode DC-DC con- verter. It can provide up to 1A of output current over a wide input range from 2.5V to 5.5V. The output voltage can be externally adjusted over a wide range of 0.8V to 5.5V by means of an external voltage divider. At moderate and light loads, pulse skipping modulation is used. Dynamic voltage positioning is applied, and the output voltage is shifted 0.8% above nominal value for increased headroom dur- ing load transients. At higher loads the system automatically switches over to current mode PWM control, operating at 1.3 MHz. A current mode control loop with fast transient response ensures excellent line and load regulation. To achieve high effi- ciency and ensure long battery life, the quiescent current is reduced to 25µA in Power Save mode, and the supply current drops below 1µA in shut-down mode. The FAN2001/FAN2002 is available in a 3x3mm 6-lead MLP package. Typical Application Figure 1. Typical Application 1 2 3 6 5 4 FB PGND SW PVIN VIN EN P1 (AGND) L1 R2 R1 VOUT 2 x 10 µF 3.3 µH 10 µF 10K Ω 5K Ω 1.2V (1A) FAN2002 2 x 10 µF 10 µF V OUT EN SW C IN C OUT 1.2V (1A) 1 2 3 6 5 4 FB PGND VIN NC P1 (AGND) 3.3 µH R1 10K Ω 5K Ω R2 FAN2001 |
Ähnliche Teilenummer - FAN2002 |
|
Ähnliche Beschreibung - FAN2002 |
|
|
Link URL |
Privatsphäre und Datenschutz |
ALLDATASHEETDE.COM |
War ALLDATASHEET hilfreich? [ DONATE ] |
Über Alldatasheet | Werbung | Kontakt | Privatsphäre und Datenschutz | Linktausch | Hersteller 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 |