onsemi NCP1521
The NCP1521 step- down PWM DC- DC converter is optimized for portable applications powered from one cell Li- ion or three cell Alkaline/NiCd/NiMH batteries. The device is available in an adjustable output voltage from 0.9 V to 3.3 V. It uses synchronous rectification to increase efficiency and reduce external part count.| Part No. | NCP1521 |
|---|---|
| Datasheet | NCP1521 Download |
| Manufacturer |  onsemi |
| Description | Adjustable Output Voltage Step-Down Converter |
| Buy | Stock & Price |
FEATURES
●ă95.3% of Efficiency for 3.3 V Output and 4.2 V Input and 80 mA Load-Current●ăSources up to 600 mA
●ă1.5 MHz Switching Frequency
●ăAdjustable Output Voltage from 0.9 V to 3.3 V
●ă30 mA Quiescent Current
●ăSynchronous Rectification for Higher Efficiency
●ă2.7 V to 5.5 V Input Voltage Range
●ăThermal Limit Protection
●ăShutdown Current Consumption of 0.3 mA
●ăShort Circuit Protection
●ăThis is a Pb-Free Device Typical
APPLICATIONS
●ăCellular Phones, Smart Phones and PDAs●ăDigital Still/Video Cameras
●ăMP3 Players and Portable Audio Systems
●ăWireless and DSL Modems
●ăPortable Equipment
●ăUSB Powered Devices VIN CIN OFF ON 1 VIN LX 5 2 GND 3 EN FB 4 L COUT VOUT R1 Cff R2 MARKING DIAGRAM 5 1 TSOP-5 SN SUFFIX CASE 483 5 DBPAYWG G 1 DBP = Specific Device Code A = Assembly Location Y = Year W = Work Week G = Pb-Free Package (Note: Microdot may be in either location) ORDERING INFORMATION Device Package Shipping NCP1521ASNT1G TSOP-5 3000/Tape & Reel (Pb-Free) †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8011/D.
